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CHANGELOG-1.27.md

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v1.27.6

Downloads for v1.27.6

Source Code

filename sha512 hash
kubernetes.tar.gz cbd2427412bbd229439afcf7d7b1712536515f93657c9971b66a430d9858a54383db33046eade4ce2891f26f264cccee5ad34ca6e03e874af8557c840b7c627d
kubernetes-src.tar.gz 006c3d901f3bf417ef5472708aaa47fc857bef6c7e4fe9e89693ec5b9040f06c5b44be3b74130b12a5bd17650855cb101263033100e0d46275eafd489924987b

Client Binaries

filename sha512 hash
kubernetes-client-darwin-amd64.tar.gz b47b6213859d1397b55a0000d1c8daa1f630dd8a5ca553fcb541f4645fb01409f2ae2dd85a8c5274f5ec99cd5082de366e036cae72f8716861f83f8e38652fd2
kubernetes-client-darwin-arm64.tar.gz 4e1c6db712de967f6d9dc1c21b2fedf99aae3671242a8559c2bad43dc45e22e399e51bf606d2f6b4a943098fb61cf588324b6c9ba5615d18733d319183ed2c10
kubernetes-client-linux-386.tar.gz 992074087f3df0681ead508b8f35b173caac235813fe6db778b2e1367ae64cca9ff6a0d47bfae0c90612ac83361385ba82a45d01fc7b86f94752e7df32d006f7
kubernetes-client-linux-amd64.tar.gz 01e57c5d2c92094df17ce079a8944df73a2834362f3e9b051b1e3923b51b9f02bba7f4aab8ffd3183a0f99cfc102bc61e3dde77142e36f428612cced55d33892
kubernetes-client-linux-arm.tar.gz 08a51b07f14aaf4f7e9c6a3fa287c70b34195fcf7ca38968ef97cf6f70e9ab7ea17c5724fb94734a8a11ef8254122d8d246a8b777f95c1c753d430d4b64bb0ea
kubernetes-client-linux-arm64.tar.gz fb0cbe29113ba495c45843bb98e644570bf6284c2b689327d1a07aa5cd8d336f997a3f80ce0fd6df16c3a706b511922b13610b86632f07506032e51f0161479e
kubernetes-client-linux-ppc64le.tar.gz 81670992dcd1944881c54c24ef936c8fbbb7f01e7abd2c253f1894137cb114b60845e5a5181ad826c08074196f8c8bd9077322b43b26b72b0b06cee4c296dd45
kubernetes-client-linux-s390x.tar.gz e6e094117f04341bb704fae663eb95efe7273a6752acad1f82ed4dbf830d70eb204b9516dc5cfaea69dc31f979342123eaf7ec64dd88998479d8b06ab9851af5
kubernetes-client-windows-386.tar.gz bf869d6c20f1ea94dcfb0240b7d20a9ef5a021eab1f6ab6a840869af6ef420f9fe0cbf38f79a5d9055d27b8dc595cfb6587fad56259bbfb11f5b07a321a6ba9b
kubernetes-client-windows-amd64.tar.gz e503aaade44f3b6edfa532399640dc921e38ff5f0b3b6a71c347dd447065fa74d2d9d683de5325febf1de39737e3d1a8ed07781870d072d85f0223635729bcab
kubernetes-client-windows-arm64.tar.gz bfc41e7401ab7ad300a305603130ae7dbcf200c4370bea886d069d2ff4694fcb6cd6772849015c2259b693d90f85f575f7d3ecca54d31cf3a9b53569abac498e

Server Binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz 27d62d0bc05d2f117427004a19e5d319337169c0219cc2055f519af4c356001dd5a37253708e835d4a88f14823adb555c4e2753347d739fece47e76337210ef8
kubernetes-server-linux-arm64.tar.gz a5dc93ca776751a54d4d2fc33b4ad2e3f4cd15610e0e38592a08e82bd3eb3e99852e17a94c002665b60ddd5433cbd1d04eb25d0763117d907595ab620ab9f885
kubernetes-server-linux-ppc64le.tar.gz 3f6aeb89e8455675ba638014a4625ca9a491b557c1b23e59af3c2b917ec4b671960b1180e2318e44d4aa01e9c28bb3394853edd6e41dd4f83d2bff9cb84de676
kubernetes-server-linux-s390x.tar.gz 517ac5b1ad72abf3043e3841aca7ff5b3b26206f3c7c37401a25fa0c74437dcfb0b6cb053bd64a58b7d062821c82156f66190defe5775d2eab7d9b2912f70b99

Node Binaries

filename sha512 hash
kubernetes-node-linux-amd64.tar.gz d93e9d2995fb9ff0a850c6217c8d47dc55163cc36a87e4820cd1303ae05f8f0be49fedb1a6f193812a5da49e26b0e9fed4c8f3f8856eda6164dfe11ca339b796
kubernetes-node-linux-arm64.tar.gz d634fb1eb577b999179212055fdef04a270e74ed3f5b765ad94dadc6349dc091f69d66b99f12a119b576171a21d2cd7bb4ca4e00c006e782b987764e854e80b3
kubernetes-node-linux-ppc64le.tar.gz d81c05c511c0d1a0e23e9e31e7ca7d5cf2ae854d6e78360cbeb8a7af929796b4f446199c0bad095bf52b31b9541aa8159694e983a757a6a5416b3eb4e75e8404
kubernetes-node-linux-s390x.tar.gz 22a0e8689d26c6b5fd9778930f430f7633a17e4956bc23de33b7fe22afaac1b24aa4422c59c549a285c9e4ca17f3ee12bc8d221eaaf98627816bad815ff3bd1d
kubernetes-node-windows-amd64.tar.gz 566c0848f94e30ee2ef287a83a4d82f6fe93f582e4a6db9de884fdfe33c941a4731c905206d251d9b3e096175198fd18dd211fee34f151e3c651443ecce09b3d

Container Images

All container images are available as manifest lists and support the described architectures. It is also possible to pull a specific architecture directly by adding the "-$ARCH" suffix to the container image name.

name architectures
registry.k8s.io/conformance:v1.27.6 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-apiserver:v1.27.6 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-controller-manager:v1.27.6 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-proxy:v1.27.6 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-scheduler:v1.27.6 amd64, arm64, ppc64le, s390x

Changelog since v1.27.5

Changes by Kind

API Change

  • Fixed a bug where CEL expressions in CRD validation rules would incorrectly compute a high estimated cost for functions that return strings, lists or maps. The incorrect cost was evident when the result of a function was used in subsequent operations. (#119809, @jpbetz) [SIG API Machinery, Auth and Cloud Provider]
  • Mark Job onPodConditions as optional in pod failure policy (#120209, @mimowo) [SIG API Machinery and Apps]

Feature

  • Kubernetes is now built with Go 1.20.8 (#120494, @cpanato) [SIG Release and Testing]

Bug or Regression

  • Fix OpenAPI v3 not being cleaned up after deleting APIServices (#120108, @tnqn) [SIG API Machinery and Testing]
  • Fix a concurrent map access in TopologyCache's HasPopulatedHints method. (#120323, @Miciah) [SIG Apps and Network]
  • Fixed a 1.26 regression scheduling bug by ensuring that preemption is skipped when a PreFilter plugin returns UnschedulableAndUnresolvable (#119952, @sanposhiho) [SIG Scheduling]
  • Fixed a 1.27 scheduling regression that PostFilter plugin may not function if previous PreFilter plugins return Skip (#119943, @Huang-Wei) [SIG Scheduling and Testing]
  • Fixed a regression in default 1.27 configurations in kube-apiserver: fixed the AggregatedDiscoveryEndpoint feature (beta in 1.27+) to successfully fetch discovery information from aggregated API servers that do not check Accept headers when serving the /apis endpoint (#120360, @Jefftree) [SIG API Machinery]
  • Fixes a bug where images pinned by the container runtime can be garbage collected by kubelet. (#120054, @ruiwen-zhao) [SIG Node]
  • Fixes a regression exposed in 1.27 by kubectl switching to openapi v3 by making apiregistration.k8s.io discoverable in openapi/v3 (#119841, @atiratree) [SIG API Machinery]
  • Fixes a regression exposed in 1.27 by kubectl switching to openapi v3 by resolving a flake in openapi v3 aggregation (#119839, @atiratree) [SIG API Machinery]
  • Fixes issue kubernetes-sigs/cloud-provider-azure#4230 and removes the additional filtering on NotReady nodes by the azure cloud provider code (#119128, @alexanderConstantinescu) [SIG Cloud Provider]
  • Fixes regression in 1.27.2 causing running pods with devices to be terminated if kubelet is restarted (#119432, @ffromani) [SIG Node and Testing]
  • Ignore context canceled from validate and mutate webhook (#120020, @divyasri537) [SIG API Machinery]
  • Kubeadm: fix nil pointer when etcd member is already removed (#120011, @neolit123) [SIG Cluster Lifecycle]

Other (Cleanup or Flake)

  • When retrieving event resources, the reportingController and reportingInstance fields in the event will contain values. (#120067, @HirazawaUi) [SIG Instrumentation]

Dependencies

Added

Nothing has changed.

Changed

Removed

Nothing has changed.

v1.27.5

Downloads for v1.27.5

Source Code

filename sha512 hash
kubernetes.tar.gz c38254c54938b816edbbbfb104846e5802500b09029719cda914cde334d4372f56a9ad70d01cdcb2983c06b3386cb6af01c04b26dec5e9b51bee772989826fd9
kubernetes-src.tar.gz 1e06ed46e530a8fa4cfd928e22008cfdc804473867fcf55c5304277fd36c1265069473a4a4d36ca1f53d1db4c742a7e3823f0910dab82ab82518c4e4d1bc7932

Client Binaries

filename sha512 hash
kubernetes-client-darwin-amd64.tar.gz 62dfc1d11fca2a2cc5b39d72233c94846af57a476984c7cac725f74dd6e3f3a5483de4b910d5c1becacf9ae33aef06de70f78f727c1b5114cd3a92ab120595b0
kubernetes-client-darwin-arm64.tar.gz a209d4533602b7fb49d9f850976de26d71b4936b1669726052c22842842e96a402a36ec85dd189bdb367b780f761a41c6272652907b1e7df128fb6bbcb7ea1ca
kubernetes-client-linux-386.tar.gz 71e5a5f26ca4b005582189ec9b6711a3e59197e9df268c6cd85c146ae042d97da82a41254df21bfcee2187939dc7a2a413db9ebd228e2a9d1e91f3a244c69d8b
kubernetes-client-linux-amd64.tar.gz 82ed21532b842d2da029eb7d2cbf0630619051d278034493c48b98b1149175f78d80cc8fcba79658384cdc6ed4b236aed1fc8dbe69fd47a0c7811a2f4e54369e
kubernetes-client-linux-arm.tar.gz a368c4275045b6a5a7efaa3adf18a8488ca728c689d5d4d0e0d562dd9046fdd3eceb1104b1f2a3f27b9fe1bf7006d5dd11294ee8d3c2468a51fe0c30bac1f0d3
kubernetes-client-linux-arm64.tar.gz 3631bea44d8e745035b044bddb3cb9a22002a61045365ea5485070e90501371ccf249ab6b83a2bc5188cc05a9b5c2adb35da2651ddf024a295fe7f584c56dd70
kubernetes-client-linux-ppc64le.tar.gz 9ca26442c15406e15813ff76a293afbc01b051ee2f5db29a415ff0a6daf9ec4186e0044f8a6cb410d22998167b393b8b65bc3a47a2ac57da44dbb25b4dec6d31
kubernetes-client-linux-s390x.tar.gz 1d39dbaae47cb7b8677010a905896461068ac408d17bfe401114ef08d39fd73affb115d5a86b0ec2fb98d0e6ee3a499460a0f874bc8c998b29346cf46c217712
kubernetes-client-windows-386.tar.gz a75f574826b613b71de6b4057ef7e7f2fd7c08053c7f973680c0b96e0659d75baeb34b491c9a0d877477688021b77719d270afe480b590b5c0cb60f834633586
kubernetes-client-windows-amd64.tar.gz fef167cba4f3f6793ca2a70ac33d24e0fae859fdf7eb78cffcd7ea1693bc4ba400c7f7244d1b4d124ddc67b5439bd3ac46b3a887703d6db7be28b553cb028222
kubernetes-client-windows-arm64.tar.gz 19583b45d2affba34ac1b3bf7c40fee86591d4f0a06710ea88da5a6345ad32b4ca283e16a06b88af37ecceed78b58b3cc716e70967a35c2a16a018a31848e9c7

Server Binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz d135dcd85ee02b2e39f5b08e97bc335c1a79f3c98ad17848de258d842c476c9f779c00b32763e99191e7a45eb2c4be02d87efa2ed38c304a49d91fabebb0eb6a
kubernetes-server-linux-arm64.tar.gz 2040380ddaac3039c15b10ae8474f677ecda83fd5489c7d52772038b8b377026f20ecf48998c2b33b355ff541702a896ef71154d935fd4f11f5a6d0c0177881b
kubernetes-server-linux-ppc64le.tar.gz d08827a2ade5407735177b245bb4660f5db3efd44bec14b7613e042aa8d011065548a626cd6af50090c5380384e6bcfb6d1fd21fcd1d2b3039480be634027754
kubernetes-server-linux-s390x.tar.gz a3a01b9aa6d7b826eb0dc6de519d881bbf0273e3fbc62857a328fd23be37cb0749b812ac3a40a739e03ea02ef60808599832237a803770f773bfe277946060b9

Node Binaries

filename sha512 hash
kubernetes-node-linux-amd64.tar.gz 4560cd0ad15195e6752df67a1a079d49e2254aeef1713459549f13e9b922602e364a22208e9b3a1168a976648583c476c601d88e08dcc8dfeca7bf3955325879
kubernetes-node-linux-arm64.tar.gz 83ec9e500d6a63c646fc488eee0cd5381d295616e0b49ad8e702d0bede8cc163184a77a50817b0b29b949aa25da99ef702d285b39844a92534f513599d1beb86
kubernetes-node-linux-ppc64le.tar.gz 0610be236df7fb50ec4fea5eda50d9d491f174ad9c0d4eff1968501258f69a8059b6d165eed0be8637d86649a5e23a24084916366c95d5b2f27c8c7c13fd24eb
kubernetes-node-linux-s390x.tar.gz 6bf0a266eb9a73800455380c1692e2b630042762a619514e257d1c672f3b6146f3aaf3711e3392802ed0565139819924ccd998c054720a305d8c65c70bd5595b
kubernetes-node-windows-amd64.tar.gz d0476c2cc08472aa73ca921167ed5849b072933553b5e076d6eae86b9a6c0e10816321cba0a5ca0cb51159b2958213c26a2a5c7a518474968ec21d06f425d640

Container Images

All container images are available as manifest lists and support the described architectures. It is also possible to pull a specific architecture directly by adding the "-$ARCH" suffix to the container image name.

name architectures
registry.k8s.io/conformance:v1.27.5 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-apiserver:v1.27.5 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-controller-manager:v1.27.5 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-proxy:v1.27.5 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-scheduler:v1.27.5 amd64, arm64, ppc64le, s390x

Changelog since v1.27.4

Important Security Information

This release contains changes that address the following vulnerabilities:

CVE-2023-3955: Insufficient input sanitization on Windows nodes leads to privilege escalation

A security issue was discovered in Kubernetes where a user that can create pods on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes.

Affected Versions:

  • kubelet <= v1.28.0
  • kubelet <= v1.27.4
  • kubelet <= v1.26.7
  • kubelet <= v1.25.12
  • kubelet <= v1.24.16

Fixed Versions:

  • kubelet v1.28.1
  • kubelet v1.27.5
  • kubelet v1.26.8
  • kubelet v1.25.13
  • kubelet v1.24.17

This vulnerability was discovered by James Sturtevant @jsturtevant and Mark Rossetti @marosset during the process of fixing CVE-2023-3676 (that original CVE was reported by Tomer Peled @tomerpeled92)

CVSS Rating: High (8.8) CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2023-3676: Insufficient input sanitization on Windows nodes leads to privilege escalation

A security issue was discovered in Kubernetes where a user that can create pods on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they include Windows nodes.

Affected Versions:

  • kubelet <= v1.28.0
  • kubelet <= v1.27.4
  • kubelet <= v1.26.7
  • kubelet <= v1.25.12
  • kubelet <= v1.24.16

Fixed Versions:

  • kubelet v1.28.1
  • kubelet v1.27.5
  • kubelet v1.26.8
  • kubelet v1.25.13
  • kubelet v1.24.17

This vulnerability was reported by Tomer Peled @tomerpeled92

CVSS Rating: High (8.8) CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Changes by Kind

API Change

  • Aggregated discovery now returns responseKind: {} for resources which are missing group/version/kind information, to ensure compatibility with v0.26.0-v0.26.3 clients. (#119835, @liggitt) [SIG API Machinery and Testing]

Feature

  • Kubeadm: generate CA certificates with a start time that is offset 5 minutes in the past relative to the current system time to workaround cases of clock desync. client-go: allow to set NotBefore in NewSelfSignedCACert() (#119113, @champtar) [SIG API Machinery, Auth and Cluster Lifecycle]
  • Kubernetes is now built with Go 1.20.7 (#119828, @jeremyrickard) [SIG Release and Testing]

Bug or Regression

  • Fix Topology Aware Hints not working when the topology.kubernetes.io/zone label is added after Node creation

    • Fix a data race in TopologyCache when AddHints and SetNodes are called concurrently (#117269, @tnqn) [SIG Apps and Network]

  • Fix computing backoff delay when using Job pod failure policy, by including in the backoff delay calculation pod failures ignored from the backoffLimit counter.

    Also, compute the backoff delay more accurately for deleted pods. (#119466, @mimowo) [SIG Apps]

  • Fix: After a Node is down and take some time to get back to up again, the mount point of the evicted Pods cannot be cleaned up successfully. (#111933) Meanwhile Kubelet will print the log Orphaned pod "xxx" found, but error not a directory occurred when trying to remove the volumes dir every 2 seconds. (#105536) (#116134, @cvvz) [SIG Node and Storage]

  • Fixed kubelet startup getting stuck with NewVolumeManagerReconstruction feature enabled and a CSI volume present in /var/lib/kubelet/pods. (#117804, @jsafrane) [SIG Node and Storage]

  • Revert kubelet prober metrics pod tag to include actual pod name (#118549, @a7i) [SIG Node]

  • Update kube-apiserver's priority & fairness work estimator such that 'max seats' is MIN(0.15 x nominalCL, nominalCL / handSize)

    This fixes a bug where clients with requests using hand size x max seats greater than the nominal concurrency limit can starve other requests in the same priority level. (#118601, @andrewsykim) [SIG API Machinery]

Dependencies

Added

Nothing has changed.

Changed

Nothing has changed.

Removed

Nothing has changed.

v1.27.4

Downloads for v1.27.4

Source Code

filename sha512 hash
kubernetes.tar.gz 9469a8dae4ac11764119c1a8f71b010ff431f92e80fbddf98b9c0c84f009ba85e0a4d5d0dfcb292a0815b707fd1ed21550f76b7dc79b1058cd7ed224e2b4f4cc
kubernetes-src.tar.gz e908723662d8a7c5dc26865420c2a41e27d68be4018e3a2d02987128930bc027692b37d3a8ea59e03948b4649bd24c21fe37e50bc73fe490af26752d221bfd4c

Client Binaries

filename sha512 hash
kubernetes-client-darwin-amd64.tar.gz e83130d975116ad8274a0638b86f11917bc2b47dae84fca3a79f93384387de3e55dad846a4b357df0df3d8004cb4f948a2fdc7434bd6d6b40dc64922acc27734
kubernetes-client-darwin-arm64.tar.gz 323206960a0faec4382b5031f5c92ac24e8ff1276282fed57fd7d3c60b88a188e16e6dc99a4afbd41e671fe0bb56044e8d99a59ff962390b900fed33c4de832a
kubernetes-client-linux-386.tar.gz d282fbddf9e95f2d06aa1a6efa0e898c50abe2944c415848c47fd024672f6e0b704ff6df0bcef49df9fdbf940726ab8de10466211ca9476237cd565a24be25f0
kubernetes-client-linux-amd64.tar.gz 42ac0cdfb1d961cb14fbdf09370b0798a1cd687d576ded4c85a2574a2adc48e514c7df9c905f1e851fab2f69246efee73971fd39838351d3b194881cfa3b5409
kubernetes-client-linux-arm.tar.gz 935c9296d2d2c85862b357f94406876648ceca247e92acb99ba3fb2b98608687cc1ff88d201b4f1cddaa526ad026e96c7af1fccb6e52b7e5ba9307c913e31ed1
kubernetes-client-linux-arm64.tar.gz b9f1a90cb7011d872ab4773afeef752d5d726f33628acc7592978a7ec37b2afb085fc4ebdabd4f8cb25a990eb73289ffda3442d41e6393eadc90c696b7a80be9
kubernetes-client-linux-ppc64le.tar.gz e5cb8236308bb04287564285750673353dfed6d806f4266c36ad3b640bc0959e36bb9b5d65fa75937b73970abcc5571a1ac9af203093d978bc2331bcfa0969e8
kubernetes-client-linux-s390x.tar.gz 586c4c5e31762c9d52303ed86476d6b6e3df0aa590bc3676d50069502a4f3de0808eadb1e20cd18abaf148cb87d73aaa85ad92902f927b29e650d1f6534dc78b
kubernetes-client-windows-386.tar.gz e74259bcc5980ac370cbbcd91590cb36982c1af638fe6da7175c4ca3ab7d2686df1ca0d540fda6ef1d4c4978ac1f9c46a1a998852cf9a903ddc0be3852a82dbc
kubernetes-client-windows-amd64.tar.gz d5fc29cf85eceed250f366dafb182c516934008c99212a8f417eef414fbfc3bac715450e4e497a01a3c378e2bfe795ca34601e7684166b2cfcfab1422f911754
kubernetes-client-windows-arm64.tar.gz 0fc5de119e6d43958e24dec587b5253edcc9a38aa27478d220b1b231b1bd847fb59a18f27b0fb7305872d2a7ecbde11ff07058094d8f267c67c24ced0ea4af52

Server Binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz a200bb097870297c6fd8f60329958e5e21c45df277778812e6217b0130753cdedd1f03589ade6b944d9fabf0da19921c8a4e02d0f19a731d2fc7df9489f0d28e
kubernetes-server-linux-arm64.tar.gz 5584594ae1a221fb50eb372ca9d8d7f1a1fa8c89a1e946660d232aa0c2fe646d5bcf8c123e874b76111768efff6192ac943143a547669ccc85579b32edf0a08f
kubernetes-server-linux-ppc64le.tar.gz d9285e3e483d0fd4a1ff5acbe86a7a2ccc206dc005ee09120c8eea16c5311b97fcf26bd40b2ff4b30bc924f284cec59e44fd733cf0b33ac83fe2c017bc9025c3
kubernetes-server-linux-s390x.tar.gz e36e5ab5e6b98ec84a96f1846e84784012c53b166bad7fc4fc61f5f4d030d384f2d25d007929cb5373474bae38f4ad35491600fc5a71f498801870603d9f9a1d

Node Binaries

filename sha512 hash
kubernetes-node-linux-amd64.tar.gz 271633c9411066295941201cb861e2ea4759a212059786d5120e75bb7221f84b443afc631bd49f0957c1ec67e0a16f0308ddee061187afc75c1a1910968a59cc
kubernetes-node-linux-arm64.tar.gz 69ddbbbbb0c23ad7b86bbdbaaf5748e259978436730de1902ce047999b9c456a735ee92c63ba4616e0411ca99565efe4da727a6356485bbe2d66f0ef2b2516ea
kubernetes-node-linux-ppc64le.tar.gz c0758d63ade901e1fe6258cac4e5e951c7f8101a4a31ceb91f77ec0b2317f89fb2b4df64f672085dd03bc83fad27af4de9b886bc3de85f06e329e27d6e4f57bd
kubernetes-node-linux-s390x.tar.gz f3a2af663abd1e06f7ad828351fabe370f26ef8f1224b8a5738bbfd311df71d13ec72260e00e1e38bfe3dd1302ec7b5e9df13d8c8e874262f2b0607096deee75
kubernetes-node-windows-amd64.tar.gz bb05e9426d02f1a6593a14fef0671803a374dc6e98a4ff1de837b93559a1164275d5e313b08806ce09baa36d3177e59038de9487d6ee1d7a8ae898342e82ae89

Container Images

All container images are available as manifest lists and support the described architectures. It is also possible to pull a specific architecture directly by adding the "-$ARCH" suffix to the container image name.

name architectures
registry.k8s.io/conformance:v1.27.4 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-apiserver:v1.27.4 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-controller-manager:v1.27.4 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-proxy:v1.27.4 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-scheduler:v1.27.4 amd64, arm64, ppc64le, s390x

Changelog since v1.27.3

Changes by Kind

Feature

  • Fixes the alpha CloudDualStackNodeIPs feature. (#118329, @danwinship) [SIG Network and Node]
  • Kubernetes is now built with Go 1.20.6 (#119366, @xmudrii) [SIG Release and Testing]

Bug or Regression

  • Fix component status calling etcd health endpoint over http which exposed kubernetes to the risk of complete watch starvation and is inconsistent with other etcd probing done by kube-apiserver. (#118683, @serathius) [SIG API Machinery]
  • Fix cronjob controller handling of complex schedules, like "30 6-16/4 * * 1-5", for example (#119139, @kmala) [SIG Apps]
  • Fix deletion of non-admissible pods that are deleted during Kubelet restart (#118841, @bobbypage) [SIG Node and Testing]
  • Fixed #118052: nodeAffinity on pods can change prior to scheduling gates being removed even when podSpec.affinity is nil in the initial spec, this matches the 1.28 behavior to allow consistent integrators to be written. (#118199, @aleskandro) [SIG Apps, Scheduling and Testing]
  • Fixed a performance issue where pods weren't created/deleted in parallel for a StatefulSet with podManagementPolicy: Parallel. (#119096, @aleksandra-malinowska) [SIG Apps]
  • Fixed vSphere cloud provider not to skip detach volumes from nodes at kube-controller-startup. (#117243, @jsafrane) [SIG Cloud Provider]
  • Kubectl explain should correctly work for all resources (#118876, @atiratree) [SIG CLI]
  • Only declare Job as finished after removing all Pod finalizers to avoid orphan Pods (#119160, @alculquicondor) [SIG Apps and Testing]
  • The Daemonset controller creates replacements for terminal Pods, which can appear during VM preemptions or when using Pod finalizers (#118911, @alculquicondor) [SIG Apps and Testing]
  • The pod_scheduling_duration_seconds metrics won't consider the time when a Pod fails PreEnqueue (like being gated). (#118821, @helayoty) [SIG Scheduling]
  • This PR adds additional validation for endpoint ip configuration while iterating through queried endpoint list. (#117226, @princepereira) [SIG Network and Windows]
  • Updated cAdvisor to v0.47.2 - Fix metrics in cri-o when a container restarts (#118797, @harche) [SIG Node]

Dependencies

Added

Nothing has changed.

Changed

Removed

Nothing has changed.

v1.27.3

Downloads for v1.27.3

Source Code

filename sha512 hash
kubernetes.tar.gz dd9174340ea3773db4c8a19d0a958fa22046863f270e31add0b7fad07ec285c6f2d09d335121697f6cd879c91589204b73b6631100c95c027bddbdef391fe5e0
kubernetes-src.tar.gz b3ecffc433df2dcaea9287e45da74f23c784f18bf22a33b65a196563077b01ba61b73f5761c16ae723ae821f27644f98c22be69ea16b8b14deb8b6e35d35b018

Client Binaries

filename sha512 hash
kubernetes-client-darwin-amd64.tar.gz fb8f708135406f1ba9116d2fecd6fadcc2e5be7e56c78e0620840352e236178835e4e162b76c8b545faf02700347f01792c2b9c83c6e3819a020e3ba0aef7afe
kubernetes-client-darwin-arm64.tar.gz 1c5b9ba8d9e41b61d519ede27c7d65320ababa7ac922f4b425553922cb319d825e0ca8a4bb38440408c8f99395c981f682887e7a0d8e20217feafafc2cbfa75c
kubernetes-client-linux-386.tar.gz 6ccc8cce4c26eacd27499b20a0017b4059aa133438b26f0576828d57c1810095f5fae67ca023047d44cdc9535605cf95a084af509138087616cd8d56a7e5c2fd
kubernetes-client-linux-amd64.tar.gz 14339c478f3c2d169d2e9fc387a62b32ba86be6cc9d9fc73f50bfe3a2225bbefd5463a09f665155ec36b04e52676831e7b010a1fcb9158e7f10a55dde393502d
kubernetes-client-linux-arm.tar.gz d40738d863188768089cf14fe31c060f578182283f8d4070e279cdabd9eccaf5a8e33f20025281e394de95a76ddc4a9835a6d1eac2b131d64f137a8a5d4cd667
kubernetes-client-linux-arm64.tar.gz 79aa1ea8d763c5258d43499a55ed4c88cf9aec36353246c5de797bc399023ffcb110c4b69da419b085a259b8b7253de2956480e6734a9ce1edd674821756cb54
kubernetes-client-linux-ppc64le.tar.gz c9e89f6032853874dce84df467c9f8ade7800af2c7b29fb070628e16350ba49b086520903508c711f6970b3fe37a3e88065be705d8950c024c006929abec6459
kubernetes-client-linux-s390x.tar.gz 927f54417e2e177ba811b08db45677a7a5693c99da4eaa268fc2026d68769d49bb036c1b4dc2d376a2080f17f207399d9a1e83bcf17c747647bd86aa3e1bab77
kubernetes-client-windows-386.tar.gz 78e6a307237f66386856a217ed82a63e2d1f9a1b674fe1f5fd26d6169193490d0aaeb8597f2ac9ea876ff984ca51e4f6810cb6587aff3d6af4eaf1a4b8590330
kubernetes-client-windows-amd64.tar.gz 83252ef0c7491a637fc45b696c35cdafd3bd168608c1cb6fa0cc380b20dd68e456a63615d5b42074c3a8a5e1f8cc988e746793b598b5e658f1d598f8da29b2d4
kubernetes-client-windows-arm64.tar.gz c4f364d16a3fdf3885d2176beb058b85f8f1f603d25c0e87b2c97c122543c7f1f0f6c1d7377a145a3cf893ae3af864779f555f0bdfddfa8d6cf2a5d442a57e1f

Server Binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz 4493a9c8e64579f0904c5dddb5967397f7ad9f8ec1d16d34eaa9692a716170f8392d414ee8d2adce0effdfc875bce5e70567df51d538d520eb4d284ff538ed3c
kubernetes-server-linux-arm64.tar.gz 06f0440bf4fdfe19a27d4ee5e2ae71df9d8697b37422133a487b15ddb3861fde4e705367374daa1b726adea432d4e23cab3477741583dd5f9fdc7ddc4633081b
kubernetes-server-linux-ppc64le.tar.gz 6886265f0839ecd83988dbe535d0c15613f828697b2a2948c79fcb5eabc7f4177b08d9e58a93c80d6f8fb2f463688ab043a4d0bf354f4bc410785d2d2e5b94a4
kubernetes-server-linux-s390x.tar.gz a7a595f914393f776809555f22831d7c5ca91d2de117b69f392ae6f7f3611199074abd373a973b5d4d5aaddfcce60c17ba9ecb8eeeeabfe0a4ccbc7c6f0735c7

Node Binaries

filename sha512 hash
kubernetes-node-linux-amd64.tar.gz 5950f42effc3b48697142cc6012de0921a575252e1eb860eb89941be7f22ef9005d590fd825f0b2e9025583a7912ecae10f3a848932d16981afc9a36dac4d337
kubernetes-node-linux-arm64.tar.gz 9dedf1d677a9a57d8ec28d09ae70ea9bf5deb4869a33e15391978347e7f1e9d51ac4fcd82e0411803670d84d161104575fd84e4ea90458c877b9247c748d12b4
kubernetes-node-linux-ppc64le.tar.gz 54c1018641d2ffb075fa6c3674a0c69a8509332f13db569c937c649c4c678db418512266d6373aca9892776fc090e060a51c1f6e54e4ab8018f44c3a6bfad4d4
kubernetes-node-linux-s390x.tar.gz 3d0e771b812c8aff468cced3bb29619cc15ee2f2bd5980c8bb5880391e0076eab54bfea6bdd77953ed929462024349ba5fc07edad85126ae5a6e81c399e8b333
kubernetes-node-windows-amd64.tar.gz 3614c4df2074714a74ce392f3f14ff91b15d97a7759cc33755c0c1f0b96e728cef04d8e55068911a64611a46cc40f0d25bee2ac974e4cc78b7428b2f1e1f5ecc

Container Images

All container images are available as manifest lists and support the described architectures. It is also possible to pull a specific architecture directly by adding the "-$ARCH" suffix to the container image name.

name architectures
registry.k8s.io/conformance:v1.27.3 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-apiserver:v1.27.3 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-controller-manager:v1.27.3 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-proxy:v1.27.3 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-scheduler:v1.27.3 amd64, arm64, ppc64le, s390x

Changelog since v1.27.2

Important Security Information

This release contains changes that address the following vulnerabilities:

CVE-2023-2728: Bypassing enforce mountable secrets policy imposed by the ServiceAccount admission plugin

A security issue was discovered in Kubernetes where users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using ephemeral containers. The policy ensures pods running with a service account may only reference secrets specified in the service account's secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the kubernetes.io/enforce-mountable-secrets annotation are used together with ephemeral containers.

Note: This only impacts the cluster if the ServiceAccount admission plugin is used (most cluster should have this on by default as recommended in https://kubernetes.io/docs/reference/access-authn-authz/admission-controllers/#serviceaccount), the kubernetes.io/enforce-mountable-secrets annotation is used by a service account (this annotation is not added by default), and Pods are using ephemeral containers.

Affected Versions:

  • kube-apiserver v1.27.0 - v1.27.2
  • kube-apiserver v1.26.0 - v1.26.5
  • kube-apiserver v1.25.0 - v1.25.10
  • kube-apiserver <= v1.24.14

Fixed Versions:

  • kube-apiserver v1.27.3
  • kube-apiserver v1.26.6
  • kube-apiserver v1.25.11
  • kube-apiserver v1.24.15

CVSS Rating: Medium (6.5) CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Changes by Kind

Feature

  • Kubernetes is now built with Go 1.20.5 (#118553, @puerco) [SIG API Machinery, Architecture, Auth, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation, Node, Release, Storage and Testing]

Bug or Regression

  • Add DisruptionTarget condition to the pod preempted by Kubelet to make room for a critical pod (#118219, @mimowo) [SIG Node and Testing]
  • Fixes a bug at kube-apiserver start where APIService objects for custom resources could be deleted and recreated. (#118104, @liggitt) [SIG API Machinery and Testing]
  • If kubeadm reset finds no etcd member ID for the peer it removes during the remove-etcd-member phase, it continues immediately to other phases, instead of retrying the phase for up to 3 minutes before continuing. (#117948, @dlipovetsky) [SIG Cluster Lifecycle]
  • Kubeadm: fix a bug where the static pod changes detection logic is inconsistent with kubelet (#118069, @SataQiu) [SIG Cluster Lifecycle]
  • Kubeadm: fix etc version support for Kubernetes v1.27 (#118307, @SataQiu) [SIG Cluster Lifecycle]

Dependencies

Added

Nothing has changed.

Changed

Nothing has changed.

Removed

Nothing has changed.

v1.27.2

Downloads for v1.27.2

Source Code

filename sha512 hash
kubernetes.tar.gz c46c9c1c4cdb0b1532630ce0e01295c7185f725e494d4fd190bae0540283c679b1c8b0a1ad1f0f5d320ddbf439e5fdd6f925700080cdf810158e1f41b8c5d9c9
kubernetes-src.tar.gz b9be38a5506071a362864661b369c71b0a02e66df0a77a2afc68040fa9634751a189e3c6c94771aee3e17b50a73228ad992a08f31cf4b322ebd7003e7676d381

Client Binaries

filename sha512 hash
kubernetes-client-darwin-amd64.tar.gz 7e4c0a207e505f6966999e0efb293c0e885d5975ad02f8e534b60ab1a94e0fdbcefd72c18fd536bb23e9356735098dd3fb85c6034e3ec07879f9511deb254f1b
kubernetes-client-darwin-arm64.tar.gz 41a51f588a9c19d0377921b66c21d7b406244aca4fbd32c0d7dcdd9b1cf80712c8f26a1134c2ae1d57612025b943e87a7bb55ee01c22838c0deb2754cf4a43cd
kubernetes-client-linux-386.tar.gz 729310d48d34fd21805869f849492227d3a74d1feafa4969d2aa5e0336c85d51f379865eda7b20c92b2f5122094884de5947a715f2fc9b6cb32e8a4e79dcd16c
kubernetes-client-linux-amd64.tar.gz cc34cffb3ec65a1b29dc3998341c8317dd1bf34d45b230a2379b1676d4d9a600cb662cde7caa7c8253e4cf2320d40b9581f97c0a04ac81037643b4fd105c6103
kubernetes-client-linux-arm.tar.gz b85927b9ff2f5871dac6814800c0fda43c4e69c27dd5c9d5cb3c73551c147ad2501675ffc5775cb70af4b643e88e784d034c3eec714de66c7ddf163a2ae4f500
kubernetes-client-linux-arm64.tar.gz cdf09ad3150c702e84c22158e95f164cffcbfa5e06af65e33dafada0d0d00fd6c160f41eb72d7966b0659e49705f7197d92dc3dc7153cf907fcdf318071138bc
kubernetes-client-linux-ppc64le.tar.gz 7219c79d43cc57a0866c854183dbed2629866e4ce081b62eef6c3034094bf0d3143e9e2eb7cf819a2f49bd98566cf4ac56cc9f2989f4c49906a71e2df68767e4
kubernetes-client-linux-s390x.tar.gz 9a5c0d13732ebf2d69f714ee953cc57f1c7ca2a27cb26333336a0da225414a96976f6a383cbe89aee80bcdd47a59dc17784acce377f656a6f959ed65f638a82d
kubernetes-client-windows-386.tar.gz 7bad7610f5a000cf40f68451d4cf94395d43907271aa98132cb6a52eae541e25cce7f40b5dfb1b45c79da5bbf54ce49cfbcd04f819635e16d91e03c63b48b8f4
kubernetes-client-windows-amd64.tar.gz 3d1c4f023867e8289d19dba43d702d40f3a8d8583e2c436e447af43127da9b0e90b5ca4ac055c3256c92d8fcaaa3734f0a83039480b35a012aed86ecd377da59
kubernetes-client-windows-arm64.tar.gz 0b08b36d4869b6b1de0314bb365ae45f85719297088f12b723a535a61f7b2c648969c12a4e1ecbd29a6deb804551815ed21c3b8ae9ed6813aa26d625723a273e

Server Binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz 53f1533aa8f493ebbdfb07ba59eaf971cf865c60d1ac9a5ad9f61e6d5f670e9d86e0dc70c6d3057953da2968d100de8d8bf50d5863ad2decb69c397aa6f185b9
kubernetes-server-linux-arm64.tar.gz 66466de2b1b5ad7ce09fba95da00d3451ae13b28b89755a64cc4e18e1254c5dfed290df5f8509f312396679bcc90eec98eb84e333ea9bd206ecb8bf00eeeba71
kubernetes-server-linux-ppc64le.tar.gz 283dd8c6391d62b1f11102ce3a252d78b1dd3268dd2b8c5f08276c9c764ced6f0f8e8056b5d302045c464efc063a81d815e6fc3f804b997770b40bc1b2a89f8c
kubernetes-server-linux-s390x.tar.gz ea30de775e794eb738a3c10c730c0e291ae1460fdaba984d4eb00bf52b552f192608e8213b382ac8161f1f13486ddf13b7f20e4f5838a1e38f08da9288c01a3c

Node Binaries

filename sha512 hash
kubernetes-node-linux-amd64.tar.gz 2a05c3ebcec8bce9ca2a7c835617f0b85dbf11a07d39c5b002b5389a45465807c437dd22d975c60e680ee34f3bc00e460d848927a8fa2c1543ec97fb66f50477
kubernetes-node-linux-arm64.tar.gz 9d6c45fb54c01ac9a106d356d8c9ed1c6564f4b86bb1ba55ced628bbbf5c4fb1f78d68a15c3055680c6dff6c85a32726300d09b7a85bdcb7ba263a434b148826
kubernetes-node-linux-ppc64le.tar.gz b029fe744619f9649e42c80ca2f0bb14ae72c934d4687100ee7f041cbcd72cc5567ae01acef9e2c7b5c579228b2af9a419bdbf2af64420754a5f6049cdd391bb
kubernetes-node-linux-s390x.tar.gz d3319d9a4a205cd1fa9da590407fe2be3b149c50e77422ff2b2f1e803c24e0d496fdc89d16c658fbef7a0bc59d1b0e295dfa5354ce3c3c5d9a6749e60e1580ee
kubernetes-node-windows-amd64.tar.gz a745fe1b46ec6c3bd27e72c2774a01fd53c27361de6ad7281c2adeaf88ab59ec725d60dc99a4de5f3579428ef4e923860a85143f14b51590ce43bfdee7a36a10

Container Images

All container images are available as manifest lists and support the described architectures. It is also possible to pull a specific architecture directly by adding the "-$ARCH" suffix to the container image name.

name architectures
registry.k8s.io/conformance:v1.27.2 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-apiserver:v1.27.2 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-controller-manager:v1.27.2 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-proxy:v1.27.2 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-scheduler:v1.27.2 amd64, arm64, ppc64le, s390x

Changelog since v1.27.1

Changes by Kind

API Change

  • Added error handling for seccomp localhost configurations that do not properly set a localhostProfile (#117020, @cji) [SIG API Machinery and Node]
  • Fixed an issue where kubelet does not set case-insensitive headers for http probes. (#117182, @dddddai) (#117324, @dddddai) [SIG API Machinery, Apps and Node]
  • Revised the comment about the feature-gate level for PodFailurePolicy from alpha to beta (#117815, @kerthcet) [SIG Apps]

Feature

  • Kubernetes is now built with Go 1.20.4 (#117773, @xmudrii) [SIG Release and Testing]

Failing Test

  • Allow Azure Disk e2es to use newer topology labels if available from nodes (#117216, @gnufied) [SIG Storage and Testing]

Bug or Regression

  • CVE-2023-27561 CVE-2023-25809 CVE-2023-28642: Bump fix runc v1.1.4 -> v1.1.5 (#117242, @haircommander) [SIG Node]
  • During device plugin allocation, resources requested by the pod can only be allocated if the device plugin has registered itself to kubelet AND healthy devices are present on the node to be allocated. If these conditions are not sattsfied, the pod would fail with UnexpectedAdmissionError error. (#117719, @swatisehgal) [SIG Node and Testing]
  • Fallback from OpenAPI V3 to V2 when the OpenAPI V3 document is invalid or incomplete. (#117980, @seans3) [SIG CLI]
  • Fix bug where listOfStrings.join() in CEL expressions resulted in an unexpected internal error. (#117596, @jpbetz) [SIG API Machinery]
  • Fix incorrect calculation for ResourceQuota with PriorityClass as its scope. (#117825, @Huang-Wei) [SIG API Machinery]
  • Fix performance regression in scheduler caused by frequent metric lookup on critical code path. (#117617, @tosi3k) [SIG Scheduling]
  • Fix: the volume is not detached after the pod and PVC objects are deleted (#117236, @cvvz) [SIG Storage]
  • Fixed a memory leak in the Kubernetes API server that occurs during APIService processing. (#117310, @enj) [SIG API Machinery]
  • Fixes a race condition serving OpenAPI content (#117708, @Jefftree) [SIG API Machinery, Architecture, Auth, CLI, Cloud Provider, Instrumentation and Node]
  • Fixes a regression in kubectl and client-go discovery when configured with a server URL other than the root of a server. (#117685, @ardaguclu) [SIG API Machinery]
  • Fixes bug where an incomplete OpenAPI V3 document can cause a nil-pointer crash. Ensures fallback to OpenAPI V2 endpoint for errors retrieving OpenAPI V3 document. (#117918, @seans3) [SIG CLI]
  • Kubeadm: fix a bug where file copy(backup) could not be executed correctly on Windows platform during upgrade (#117861, @SataQiu) [SIG Cluster Lifecycle]
  • Kubelet terminates pods correctly upon restart, fixing an issue where pods may have not been fully terminated if the kubelet was restarted during pod termination. (#117433, @bobbypage) [SIG Node and Testing]
  • Number of errors reported to the metric storage_operation_duration_seconds_count for emptyDir decreased significantly because previously one error was reported for each projected volume created. (#117022, @mpatlasov) [SIG Storage]
  • Resolves a spurious "Unknown discovery response content-type" error in client-go discovery requests by tolerating extra content-type parameters in API responses (#117637, @seans3) [SIG API Machinery]
  • Reverted NewVolumeManagerReconstruction and SELinuxMountReadWriteOncePod feature gates to disabled by default to resolve a regression of volume reconstruction on kubelet/node restart (#117752, @liggitt) [SIG Storage]
  • Static pods were taking extra time to be restarted after being updated. Static pods that are waiting to restart were not correctly counted in kubelet_working_pods. (#116995, @smarterclayton) [SIG Node]
  • [KCCM] service controller: change the cloud controller manager to make providerID a predicate when synchronizing nodes. This change allows load balancer integrations to ensure that the providerID is set when configuring load balancers and targets. (#117450, @alexanderConstantinescu) [SIG Cloud Provider and Network]

Other (Cleanup or Flake)

  • A v2-level info log will be added, which will output the details of the pod being preempted, including victim and preemptor (#117214, @HirazawaUi) [SIG Scheduling]
  • Structured logging of NamespacedName was inconsistent with klog.KObj. Now both use lower case field names and namespace is optional. (#117238, @pohly) [SIG API Machinery, Architecture and Instrumentation]

Dependencies

Added

Nothing has changed.

Changed

  • github.com/opencontainers/runc: v1.1.4 → v1.1.6
  • k8s.io/kube-openapi: 15aac26 → 8b0f38b
  • sigs.k8s.io/apiserver-network-proxy/konnectivity-client: v0.1.1 → v0.1.2

Removed

Nothing has changed.

v1.27.1

Downloads for v1.27.1

Source Code

filename sha512 hash
kubernetes.tar.gz 01e0cc312fa04847174bf63eb888b0247ee92788801b77d642480226b112be6e3989169b9a51209187878ac6dd9c7475fd6550f16dc34b8bc52ae2f0d82a8830
kubernetes-src.tar.gz e5b55fe1e6262c60cf14229ac6dabc12b6108c7c75a454aa53919fa779bd9566412bcb31122405faa7326a19b3506a2e21904225bae1d63b23c0479ef909324d

Client Binaries

filename sha512 hash
kubernetes-client-darwin-amd64.tar.gz a85b973c88f5684d6ea73753b8c6b99b3e64e0cd2507db24b2bd7c25e22b55cf725c6e7ee80795884a34135434bb19b676e3572d587a13d2400ba7ddc5ae4935
kubernetes-client-darwin-arm64.tar.gz 83aa7154c08bbe92c6850e1c9669f6a074019ec42253b45cf0a29d58526ce7f3c3845f9504266c01cceef5013f3977eed6bd5c7a4926ee3433194c8ea8984e6f
kubernetes-client-linux-386.tar.gz 0723e0b8a1fdc6aea6028bc2f4e25addd20dca83060c12b8b7869dbd49e9eb852264957383dcf6069b542d4db7a2e3a5c5408091d58709d676afa899df25bce2
kubernetes-client-linux-amd64.tar.gz 98caa662a63d7f9ba36761caaf997be4d214ea2b921a4387965a67d168b52ea29ae9185de20192f7b4b9169a887beb19d22e5776ff0bb0b68907e177b11a8043
kubernetes-client-linux-arm.tar.gz 773171a17712112850332effaf64c901b9eace6b52c003eed79032178bbbbc2b9f7ed6725bf95533e574511c70e75cd03ff1b3a1e22bcc3871d50887f04b7121
kubernetes-client-linux-arm64.tar.gz 9dd09ca0738b1b7e287271cf16f5527d3a1abc7878e4259dc4208f74e82e3db16e5fed07a3dca75550ca531be0c504f6942841ab65e67687a94648e1b0e382a5
kubernetes-client-linux-ppc64le.tar.gz 976499635c9b7507350edeebff6d997bbff8c9f66aecea55d549eeab51b89bc3e415a703fc49a37f284f8180055d1d36d0722932d7d19729aabb6ed39c08b8ff
kubernetes-client-linux-s390x.tar.gz ad642b631eab5a68d8c88670f7880d6cafa2fdfb04e6e69e50a7c264b309ed2b04ff63b045f5133db9c3aecd99e7ac556577a74d57a64b705f3c6367d998c323
kubernetes-client-windows-386.tar.gz bc3a685dd07085119672a6ccabc2dd832a990cf50304eea8396771006ef0bcb1fc8e08b6db9d2f455dc64c5f3e9c48fdb2ff19ec7802f35257742465fbc083a7
kubernetes-client-windows-amd64.tar.gz 55d2a9e5ca066166592d778697d657eb04d828ffd6e15b177a399b44574dcae972d109e83bc2e33f0effe679e61538d5b1b4fea66ec1d812e678a9b1c50494fc
kubernetes-client-windows-arm64.tar.gz adc10b48334f2a4fae6d7ace0e1485b8a874f98187b3b5491ca056b25f9096b58a0e3e37f096c4e9045bd7c56aa7efb4d2544570153864288095ddf6d0515172

Server Binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz 0752a63510a6d0ae06d8e24e42faa1641e093c25061f60b4c8355f735788ddd4bd25ae2a47a796064b6eb2ea15f0d451852fddc3c1b82b0e1afd279df700cea2
kubernetes-server-linux-arm64.tar.gz 63d086447a7abcd37a7d4e8d36609dc1a8217e6a7d2f45efd6bf35444321bf96f181d621d7a12224e55034fae1ece62a6c3109204dfd3b40577afb7c61a3ead7
kubernetes-server-linux-ppc64le.tar.gz 0b477fb3af66976f7aafba0b97c089e5dda8c21fc314ba3fb2d54ed1ff453389af8d3aba6bbe14fdd8db02f1a309bff2291abbdbdd64b2174878bec6997a889b
kubernetes-server-linux-s390x.tar.gz bf198f3099663ead089c42221f60d4dee53c6ac0cefab37e316d2b6449a46a1708426782aff946f6cb735ab7141f61df1e33144115845aa277c45b1ea8741a6c

Node Binaries

filename sha512 hash
kubernetes-node-linux-amd64.tar.gz 484993a2478aa7d734fe711789f661b74152a96eff540b883e8603a92d91b89d870c4bfd0b482e72fd0ab2a95b7766725a0e8627676e99d051db0bf7c97d5791
kubernetes-node-linux-arm64.tar.gz 1d0d9a393b513f32e35fd609fbdd61179402421674a51ceb25b6516f2d5a5d596a451a285a038e4fe31e175727b75e30ff2e9bb368a7aa82b363018634b55a6d
kubernetes-node-linux-ppc64le.tar.gz 00c40568cc8e255b557f9a69f704f393d9ad8cfce75aaadc4df5485551106064d62fa58a6bb8a2bacd4cc363c09424eeb0acc156fe7172df057df46f4cc57109
kubernetes-node-linux-s390x.tar.gz 0615a6be0ea7ca1c90418690633013872f5f56404a6eecfedb677276b2653e22f600ad3863c80b592ff7ff2107fc4ce407ab526793464abcb0f93b65d671f6dc
kubernetes-node-windows-amd64.tar.gz 87ab85b2d784124c945c4b92ff037ecdc12800176c22d7c06d38285386d32b3fc4fea0b00d6dcdd3db77f4b67123aaeb1dc62cca6c9ff381c0d2155ee4c1ec4e

Container Images

All container images are available as manifest lists and support the described architectures. It is also possible to pull a specific architecture directly by adding the "-$ARCH" suffix to the container image name.

name architectures
registry.k8s.io/conformance:v1.27.1 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-apiserver:v1.27.1 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-controller-manager:v1.27.1 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-proxy:v1.27.1 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-scheduler:v1.27.1 amd64, arm64, ppc64le, s390x

Changelog since v1.27.0

Changes by Kind

Bug or Regression

  • Fixes a regression in 1.27.0 that resulted in "missing metadata in converted object" errors when modifying objects for multi-version custom resource definitions with a conversion strategy of None. (#117305, @ncdc) [SIG API Machinery]
  • Known issue: fixed that the PreEnqueue plugins aren't executed for Pods proceeding to activeQ through backoffQ. (#117194, @sanposhiho) [SIG Release and Scheduling]
  • Setting a mirror pod's phase to Succeeded or Failed can prevent the corresponding static pod from restarting due mutation of a Kubelet cache. (#116482, @smarterclayton) [SIG Node]

Dependencies

Added

Nothing has changed.

Changed

Nothing has changed.

Removed

Nothing has changed.

v1.27.0

Documentation

Downloads for v1.27.0

Source Code

filename sha512 hash
kubernetes.tar.gz 78dbb72f270ab70d0ad70d2da6727eed64bdc54a11892fd6c2157882865f93ab41fedf5fced2f3e71dc0eda5679d06884c262a7960277face4510eed30a3678e
kubernetes-src.tar.gz 4080d2452ff4fd316a823c1c495e7e9a39d364e24225020a91bf0bc0289c3ef90ade746ef5a05172d6e355af9014cbddf144ca71839ec65fc57f3eaf553fb7ab

Client Binaries

filename sha512 hash
kubernetes-client-darwin-amd64.tar.gz faa0e340f1829ba694326c6ff71f8527249af03d8d78f784289be4122b6ceb0829fa70ee1eab25f64bbb9f5972ae30f3cfdfefe617ce3360b2897d4f6259bd81
kubernetes-client-darwin-arm64.tar.gz 9c4fe911e41ab9c355d39b21d77372bd2a070cc376fdfceac362eb6cc3e8f616754cc61593ea140030a81961b40fa6344b7628d7a4edf7e6dcdef29711bbd064
kubernetes-client-linux-386.tar.gz ba522302624ac7b3a9e5c1a5c80857bdde4c47b44394dbfa8da597ee07b2e1975409e8eac514516329826f593fa82d143a03185ef3c30a97cb1f8011ffb96060
kubernetes-client-linux-amd64.tar.gz 3ea3b4a866815cc08f1897771d63bf4e4f75b481e1d70417e34581d079a58b647b077382a264224acb52e6a76474d6e92efd22a0d4f7fdfde0c244006beef76a
kubernetes-client-linux-arm.tar.gz 5fd69b567ab835b35b8156c66eec02ee109f731acf7d68250b05a1f43a56458be68654f95107cd28859b4b8e73d5f64c78aca2f4b1dc74fff3ca8d942c60d2db
kubernetes-client-linux-arm64.tar.gz f20e579ab71b1cdace22bec0a11314ec44534f0e7040a436c63eb18a47d839e070e5134917ef2b531fe7b8bfee12133fa14de4dac7c0ac7798b4d9fa5679f193
kubernetes-client-linux-ppc64le.tar.gz c56a2d021b1a99fde0871bbe8e71427b8c4f03847e2bf6cbf526a71f6d7d1060481bd0f00d7dce2bd8afa1c969e02422ac1a2283ab58facd3db43f0713c10212
kubernetes-client-linux-s390x.tar.gz 4ad879e2ab2b952cc0fdfcd738b6264db60b72174057947737ab07f40dd0c4c727fb042c24323be3accaf8fbc320973821c915fd1bb3c4ea8a22eb16c03ce4a3
kubernetes-client-windows-386.tar.gz befab85193ce017c647b391606d45d3626e71bf7ea6bbca7f955985e0f505a9c8ca27898ee41c4f3124b7a3788b4a4eab602994415b24b8b0bfc154b938c547e
kubernetes-client-windows-amd64.tar.gz 0fbba06f00713c32c74d9b62733dfb83a597e3a33ee62bfb3a93de7cd883c460a0c56f25cd1577dd7923ef73312788d9b805020297fcf784722783ac1890253f
kubernetes-client-windows-arm64.tar.gz b7edbb25dbbf5b0bd9839f93d43f08262cf5f6e138599c034da0ff402c763a0cff18c1e9b42631d250389ff6b865dec4aa35b577fac75a51e65c825ec8efe234

Server Binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz 9726ba173084adade1c1b0de014ccedc5dc5317a80076cbf20d15fdcd6296dd1e9efcf1b1349456757a5c186fa52293f60411397cb6c79765adff335391add9e
kubernetes-server-linux-arm64.tar.gz 657726cd4ae93a9696371717a280689af76c488586c49273086bef4e712228025c6e179c2a5c93b8a33640ac42347dd821053485659f9383dbb1b3e2a17f022c
kubernetes-server-linux-ppc64le.tar.gz 2ff2464453ca8ca2e9e4a024ad730c12fa506379b4a7bd749431fe64ddb13c2dccea05c37dba119799940eac2dc57635e9d70b908d1786a3cdc031a5b70504a5
kubernetes-server-linux-s390x.tar.gz 44ce8faa8710832593b656e3b053207e05def556ad821b8e08e0c2f33b73f280a455fbef933ea70e9efbe8a085ef7deb47139d4e9af43417d8242029a2b60c35

Node Binaries

filename sha512 hash
kubernetes-node-linux-amd64.tar.gz 812f5adfafe778200558678af6510f9f315f75b46f7bb4482e92b57d1bed08c4b7f236850bf8e4dcac7018879736d614fc482e3641da06c6f8d0554af4f4ef45
kubernetes-node-linux-arm64.tar.gz a5e353205a93ebaade50dfd652ee5623b28ee4f6fd8ca949fb2303d708468026ba66c10b70f1761f4099706baad8959993a9ec0053259b94b5f4793aeda27adb
kubernetes-node-linux-ppc64le.tar.gz b5dbcf8131bad7ef897c64ac482599ac3bedc99e5c211d189e0566543a13c89d0812d7a7b1e4e9655d8d884ee24dc553616c96cf74df19f4d2cce0ea552015ce
kubernetes-node-linux-s390x.tar.gz 81662d6e14a7500bf2714ae3c0b9070031ea5ef2628c84aaf2a8fe96fed07a52c3677babc74247160cb71ce1fc77b728f549f2c18dfc7dc6a65dfadb7ec17cd7
kubernetes-node-windows-amd64.tar.gz a8b1a53ba6ee416fb9939961d8290ae1f5e0c21117f1cd6cebbc9ba01cafa235730a2887fd91b92552d07eec78aeb65aefac92899eaf9b2f4f195c61f20d05d7

Container Images

All container images are available as manifest lists and support the described architectures. It is also possible to pull a specific architecture directly by adding the "-$ARCH" suffix to the container image name.

name architectures
registry.k8s.io/conformance:v1.27.0 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-apiserver:v1.27.0 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-controller-manager:v1.27.0 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-proxy:v1.27.0 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-scheduler:v1.27.0 amd64, arm64, ppc64le, s390x

Changelog since v1.26.0

Known Issues

The PreEnqueue extension point doesn't work for Pods going to activeQ through backoffQ

In v1.26.0, we've found the bug that the PreEnqueue extension point doesn't work for Pods going to activeQ through backoffQ. It doesn't affect any of the vanilla Kubernetes behavior, but, may break custom PreEnqueue plugins.

The cause PR is reverted by v1.26.1.

Urgent Upgrade Notes

(No, really, you MUST read this before you upgrade)

  • 'The IPv6DualStack feature gate for external cloud providers was removed. (The feature became GA in 1.23 and the gate was removed for all other components several releases ago.) If you were still manually enabling it you must stop now.' (#116255, @danwinship)

  • Give terminal phase correctly to all pods that will not be restarted.

    In particular, assign Failed phase to pods which are deleted while pending. Also, assign a terminal phase (Succeeded or Failed, depending on the exit statuses of the pod containers) to pods which are deleted while running.

    This fixes the issue for jobs using pod failure policy (with JobPodFailurePolicy and PodDisruptionConditions feature gates enabled) that their pods could get stuck in the pending phase when deleted.

    Users who maintain controllers which relied on the fact that pods with RestartPolicy=Always never enter the Succeeded phase may need to adapt their controllers. This is because as a consequence of the change pods which use RestartPolicy=Always may end up in the Succeeded phase in two scenarios: pod deletion and graceful node shutdown. (#115331, @mimowo) [SIG Cloud Provider, Node and Testing]

  • The in-tree cloud provider for AWS (and the EBS storage plugin) has now been removed. Please use the external cloud provider and CSI driver from https://github.com/kubernetes/cloud-provider-aws instead. (#115838, @torredil) [SIG API Machinery, Apps, Architecture, Auth, CLI , Cloud Provider, Cluster Lifecycle, Instrumentation, Node, Release, Scheduling, Storage, and Testing]

Changes by Kind

Deprecation

  • Added a warning response when handling requests that set the deprecated spec.externalID field for a Node. (#115944, @SataQiu) [SIG Node]
  • Added warnings to the Services API. Kubernetes now warns for Services in the case of:
    • IPv4 addresses with leading zeros
    • IPv6 address in non-canonical format (RFC 5952) (#114505, @aojea)
  • Support for the alpha seccomp annotations seccomp.security.alpha.kubernetes.io/pod and container.seccomp.security.alpha.kubernetes.io were deprecated since v1.19, now have been completely removed. The seccomp fields are no longer auto-populated when pods with seccomp annotations are created. Pods should use the corresponding pod or container securityContext.seccompProfile field instead. (#114947, @saschagrunert)
  • The SecurityContextDeny admission plugin is going deprecated and will be removed in future versions. (#115879, @mtardy)

API Change

  • A fix in the resource.k8s.io/v1alpha1/ResourceClaim API avoids harmless (?) ".status.reservedFor: element 0: associative list without keys has an element that's a map type" errors in the apiserver. Validation now rejects the incorrect reuse of the same UID in different entries. (#115354, @pohly)

  • A terminating pod on a node that is not caused by preemption no longer prevents kube-scheduler from preempting pods on that node

  • API: resource.k8s.io/v1alpha1.PodScheduling was renamed to resource.k8s.io/v1alpha2.PodSchedulingContext. (#116556, @pohly) [SIG API Machinery, Apps, Auth, CLI, Node, Scheduling and Testing]

  • Added CEL runtime cost calculation into ValidatingAdmissionPolicy, matching the evaluation cost restrictions that already apply to CustomResourceDefinition. If rule evaluation uses more compute than the limit, the API server aborts the evaluation and the admission check that was being performed is aborted; the failurePolicy for the ValidatingAdmissionPolicy determines the outcome. (#115747, @cici37)

  • Added auditAnnotations to ValidatingAdmissionPolicy, enabling CEL to be used to add audit annotations to request audit events. Added validationActions to ValidatingAdmissionPolicyBinding, enabling validation failures to be handled by any combination of the warn, audit and deny enforcement actions. (#115973, @jpbetz)

  • Added messageExpression field to ValidationRule. (#115969, @DangerOnTheRanger)

  • Added messageExpression to ValidatingAdmissionPolicy, to set custom failure message via CEL expression. (#116397, @jiahuif) [SIG API Machinery]

  • Added a new IPAddress object kind

    • Added a new ClusterIP allocator. The new allocator removes previous Service CIDR block size limitations for IPv4, and limits IPv6 size to a /64 (#115075, @aojea) [SIG API Machinery, Apps, Auth, CLI, Cluster Lifecycle, Network and Testing]

  • Added a new alpha API: ClusterTrustBundle (certificates.k8s.io/v1alpha1). A ClusterTrustBundle may be used to distribute X.509 trust anchors to workloads within the cluster. (#113218, @ahmedtd) [SIG API Machinery, Auth and Testing]

  • Added authorization check support to the CEL expressions of ValidatingAdmissionPolicy via a authorizer variable with expressions. The new variable provides a builder that allows expressions such authorizer.group('').resource('pods').check('create').allowed(). (#116054, @jpbetz) [SIG API Machinery and Testing]

  • Added matchConditions field to ValidatingAdmissionPolicy and enabled support for CEL based custom match criteria. (#116350, @maxsmythe)

  • Added new option to the InterPodAffinity scheduler plugin to ignore existing podspreferred inter-pod affinities if the incoming pod has no preferred inter-pod affinities. This option can be used as an optimization for higher scheduling throughput (at the cost of an occasional pod being scheduled non-optimally/violating existing pods preferred inter-pod affinities). To enable this scheduler option, set theInterPodAffinityscheduler plugin argignorePreferredTermsOfExistingPods: true` (#114393, @danielvegamyhre)

  • Added the MatchConditions field to ValidatingWebhookConfiguration and MutatingWebhookConfiguration for the v1beta and v1 apis.

    The AdmissionWebhookMatchConditions featuregate is now in Alpha (#116261, @ivelichkovich) [SIG API Machinery and Testing]

  • Added validation to ensure that if service.kubernetes.io/topology-aware-hints and service.kubernetes.io/topology-mode annotations are both set, they are set to the same value.Also Added deprecation warning if service.kubernetes.io/topology-aware-hints annotation is used. (#116612, @robscott)

  • Added warnings about workload resources (Pods, ReplicaSets, Deployments, Jobs, CronJobs, or ReplicationControllers) whose names are not valid DNS labels. (#114412, @thockin)

  • Adds feature gate NodeLogQuery which provides cluster administrators with a streaming view of logs using kubectl without them having to implement a client side reader or logging into the node. (#96120, @LorbusChris)

  • Api: validation of a PodSpec now rejects invalid ResourceClaim and ResourceClaimTemplate names. For a pod, the name generated for the ResourceClaim when using a template also must be valid. (#116576, @pohly)

  • Bump default API QPS limits for Kubelet. (#116121, @wojtek-t)

  • Enabled the StatefulSetStartOrdinal feature gate in beta (#115260, @pwschuurman)

  • Enabled usage of kube-proxy, kube-scheduler and kubelet HTTP APIs for changing the logging verbosity at runtime for JSON output. (#114609, @pohly)

  • Encryption of API Server at rest configuration now allows the use of wildcards in the list of resources. For example, . can be used to encrypt all resources, including all current and future custom resources. (#115149, @nilekhc)

  • Extended the kubelet's PodResources API to include resources allocated in ResourceClaims via DynamicResourceAllocation. Additionally, added a new Get() method to query a specific pod for its resources. (#115847, @moshe010) [SIG Node]

  • Forbid to set matchLabelKeys when labelSelector is not set in topologySpreadConstraints (#116535, @denkensk)

  • GCE does not support LoadBalancer Services with ports with different protocols (TCP and UDP) (#115966, @aojea) [SIG Apps and Cloud Provider]

  • GRPC probes are now a GA feature. GRPCContainerProbe feature gate was locked to default value and will be removed in v1.29. If you were setting this feature gate explicitly, please remove it now. (#116233, @SergeyKanzhelev)

  • Graduated Kubelet Topology Manager to GA. (#116093, @swatisehgal)

  • Graduated KubeletTracing to beta, which means that the feature gate is now enabled by default. (#115750, @saschagrunert)

  • Graduated seccomp profile defaulting to GA.

    Set the kubelet --seccomp-default flag or seccompDefault kubelet configuration field to true to make pods on that node default to using the RuntimeDefault seccomp profile.

    Enabling seccomp for your workload can have a negative performance impact depending on the kernel and container runtime version in use.

    Guidance for identifying and mitigating those issues is outlined in the Kubernetes seccomp tutorial. (#115719, @saschagrunert) [SIG API Machinery, Node, Storage and Testing]

  • Graduated the container resource metrics feature on HPA to beta. (#116046, @sanposhiho)

  • Implemented API streaming for the watch-cache

    When sendInitialEvents ListOption is set together with watch=true, it begins the watch stream with synthetic init events followed by a synthetic "Bookmark" after which the server continues streaming events. (#110960, @p0lyn0mial)

  • Introduced API for streaming.

    Added SendInitialEvents field to the ListOptions. When the new option is set together with watch=true, it begins the watch stream with synthetic init events followed by a synthetic "Bookmark" after which the server continues streaming events. (#115402, @p0lyn0mial)

  • Introduced a breaking change to the resource.k8s.io API in its AllocationResult struct. This change allows a kubelet plugin for the DynamicResourceAllocation feature to service allocations from multiple resource driver controllers. (#116332, @klueska)

  • Introduces new alpha functionality to the reflector, allowing user to enable API streaming.

    To activate this feature, users can set the ENABLE_CLIENT_GO_WATCH_LIST_ALPHA environmental variable. It is important to note that the server must support streaming for this feature to function properly. If streaming is not supported by the server, the reflector will revert to the previous method of obtaining data through LIST/WATCH semantics. (#110772, @p0lyn0mial) [SIG API Machinery]

  • K8s.io/client-go/tools/record.EventBroadcaster: after Shutdown() is called, the broadcaster now gives up immediately after a failure to write an event to a sink. Previously it tried multiple times for 12 seconds in a goroutine. (#115514, @pohly) [SIG API Machinery]

  • K8s.io/component-base/logs: usage of the pflag values in a normal Go flag set led to panics when printing the help message (#114680, @pohly) [SIG Instrumentation]

  • Kubeadm: explicitly set priority for static pods with priorityClassName: system-node-critical (#114338, @champtar) [SIG Cluster Lifecycle]

  • Kubelet: a "maxParallelImagePulls" field can now be specified in the kubelet configuration file to control how many image pulls the kubelet can perform in parallel. (#115220, @ruiwen-zhao) [SIG API Machinery, Node and Scalability]

  • Kubelet: changed MemoryThrottlingFactor default value to 0.9 and formulas to calculate memory.high (#115371, @pacoxu)

  • Kubernetes components that perform leader election now only support using Leases for this. (#114055, @aimuz)

  • Migrated the DaemonSet controller (within kube-controller-manager) to use contextual logging (#113622, @249043822)

  • New service.kubernetes.io/topology-mode annotation has been introduced as a replacement for the service.kubernetes.io/topology-aware-hints annotation.

    • service.kubernetes.io/topology-aware-hints annotation has been deprecated.
    • kube-proxy now accepts any value that is not "disabled" for these annotations, enabling custom implementation-specific and/or future built-in heuristics to be used. (#116522, @robscott) [SIG Apps, Network and Testing]

  • Pods owned by a Job now uses the labels batch.kubernetes.io/job-name and batch.kubernetes.io/controller-uid. The legacy labels job-name and controller-uid are still added for compatibility. (#114930, @kannon92)

  • Promoted CronJobTimeZone feature to GA (#115904, @soltysh)

  • Promoted SelfSubjectReview to Beta (#116274, @nabokihms) [SIG API Machinery, Auth, CLI and Testing]

  • Relaxed API validation to allow pod node selector to be mutable for gated pods (additions only, no deletions or mutations). (#116161, @danielvegamyhre)

  • Remove kubernetes.io/grpc standard appProtocol (#116866, @LiorLieberman) [SIG API Machinery and Apps]

  • Remove deprecated --enable-taint-manager and --pod-eviction-timeout CLI (#115840, @atosatto)

  • Removed support for the v1alpha1 kubeletplugin API of DynamicResourceManagement. All plugins must be updated to v1alpha2 in order to function properly. (#116558, @klueska)

  • The API server now re-uses data encryption keys while the kms v2 plugin key ID is stable. Data encryption keys are still randomly generated on server start but an atomic counter is used to prevent nonce collisions. (#116155, @enj)

  • The PodDisruptionBudget spec.unhealthyPodEvictionPolicy field has graduated to beta and is enabled by default. On servers with the feature enabled, this field may be set to AlwaysAllow to always allow unhealthy pods covered by the PodDisruptionBudget to be evicted. (#115363, @ravisantoshgudimetla) [SIG Apps, Auth and Node]

  • The DownwardAPIHugePages kubelet feature graduated to stable / GA. (#115721, @saschagrunert) [SIG Apps and Node]

  • The following feature gates for volume expansion GA features have now been removed and must no longer be referenced in --feature-gates flags: ExpandCSIVolumes, ExpandInUsePersistentVolumes, ExpandPersistentVolumes (#113942, @mengjiao-liu)

  • The list-type of the alpha resourceClaims field introduced to Pods in 1.26.0 was modified from set to map, resolving an incompatibility with use of this schema in CustomResourceDefinitions and with server-side apply. (#114585, @JoelSpeed)

  • Updated API reference for Requests, specifying they must not exceed limits (#115434, @ehashman)

  • Updated KMSv2 to beta (#115123, @aramase)

  • Updated: Redefine AppProtocol field description and add new standard values (#115433, @LiorLieberman) [SIG API Machinery, Apps and Network]

  • /metrics/slis is now available for control plane components allowing you to scrape health check metrics. (#114997, @Richabanker)

  • APIServerTracing feature gate is now enabled by default. Tracing in the API Server is still disabled by default, and requires a config file to enable. (#116144, @dashpole)

  • NodeResourceFit and NodeResourcesBalancedAllocation implement the PreScore extension point for a more performant calculation. (#115655, @tangwz)

  • PodSchedulingReadiness is graduated to beta. (#115815, @Huang-Wei)

  • PodSpec.Container.Resources became mutable for CPU and memory resource types.

    • PodSpec.Container.ResizePolicy (new object) gives users control over how their containers are resized.
    • PodStatus.Resize status describes the state of a requested Pod resize.
    • PodStatus.ResourcesAllocated describes node resources allocated to Pod.
    • PodStatus.Resources describes node resources applied to running containers by CRI.
    • UpdateContainerResources CRI API now supports both Linux and Windows. (#102884, @vinaykul)

  • SELinuxMountReadWriteOncePod graduated to Beta. (#116425, @jsafrane)

  • StatefulSetAutoDeletePVC feature gate promoted to beta. (#116501, @mattcary)

  • StatefulSet names must be DNS labels, rather than subdomains. Any StatefulSet which took advantage of subdomain validation (by having dots in the name) can't possibly have worked, because we eventually set pod.spec.hostname from the StatefulSetName, and that is validated as a DNS label. (#114172, @thockin)

  • ValidatingAdmissionPolicy now provides a status field that contains results of type checking the validation expression. The type checking is fully informational, and the behavior of the policy is unchanged. (#115668, @jiahuif)

  • cacheSize field in EncryptionConfiguration is not supported for KMSv2 provider (#113121, @aramase)

  • k8s.io/component-base/logs now also supports adding command line flags to a flag.FlagSet. (#114731, @pohly)

  • kubelet: migrated --container-runtime-endpoint and --image-service-endpoint to kubelet config (#112136, @pacoxu)

  • resource.k8s.io/v1alpha1 was replaced with resource.k8s.io/v1alpha2. Before upgrading a cluster, all objects in resource.k8s.io/v1alpha1 (ResourceClaim, ResourceClaimTemplate, ResourceClass, PodScheduling) must be deleted. The changes are internal, so YAML files which create pods and resource claims don't need changes except for the newer apiVersion. (#116299, @pohly)

  • volumes: resource.claims is now cleared for PVC specs during create or update of a pod spec with inline PVC template or of a PVC because it has no effect. (#115928, @pohly)

Feature

  • A new client side metric rest_client_request_retries_total has been added that tracks the number of retries sent to the server, partitioned by status code, verb and host (#108396, @tkashem)

  • A new feature was enabled to improve the performance of the iptables mode of kube-proxy in large clusters. No action was required, however:

    1. If you experienced problems with Services not syncing to iptables correctly, you can disable the feature by passing --feature-gates=MinimizeIPTablesRestore=false to kube-proxy (and file a bug if this fixes it). (This might also be detected by seeing the value of kube-proxy's sync_proxy_rules_iptables_partial_restore_failures_total metric rising.)
    2. If you were previously overriding the kube-proxy configuration for performance reasons, this may no longer be necessary. See https://kubernetes.io/docs/reference/networking/virtual-ips/#optimizing-iptables-mode-performance. (#115138, @danwinship)

  • API validation relaxed allowing Indexed Jobs to be scaled up/down by changing parallelism and completions in tandem, such that parallelism == completions. (#115236, @danielvegamyhre) [SIG Apps and Testing]

  • Added "general", "baseline", and "restricted" debugging profiles for kubectl debug. (#114280, @sding3) [SIG CLI]

  • Added "netadmin" debugging profiles for kubectl debug. (#115712, @wedaly) [SIG CLI]

  • Added --output plaintext-openapiv2 argument to kubectl explain to use old openapiv2 explain implementation. (#115480, @alexzielenski)

  • Added NewVolumeManagerReconstruction feature gate and enabled it by default to enable updated discovery of mounted volumes during kubelet startup. Please watch for kubelet getting stuck at startup and / or not unmounting volumes from deleted Pods and report any issues in this area. (#115268, @jsafrane)

  • Added kubelet Topology Manager metrics to track admission requests processed and occured admission errors. (#115137, @swatisehgal)

  • Added apiserver_envelope_encryption_invalid_key_id_from_status_total to measure number of times an invalid keyID is returned by the Status RPC call. (#115846, @ritazh) [SIG API Machinery and Auth]

  • Added apiserver_envelope_encryption_kms_operations_latency_seconds metric to measure the KMSv2 grpc calls latency. (#115649, @aramase) [SIG API Machinery, Auth and Testing]

  • Added e2e test to node expand volume with secret (#115451, @zhucan)

  • Added e2e tests for kubectl --subresource for beta graduation (#116590, @MadhavJivrajani)

  • Added kubelet Topology Manager metric to measure topology manager admission latency. (#115590, @swatisehgal)

  • Added logging-format option to CCMs based on k8s.io/cloud-provider (#108984, @LittleFox94)

  • Added metrics for volume reconstruction during kubelet startup. (#115965, @jsafrane) [SIG Node and Storage]

  • Added new -f flag into debug command to be used passing pod or node files instead explicit names. (#111453, @ardaguclu)

  • Added new feature gate ServiceNodePortStaticSubrange, to enable the new strategy in the NodePort Service port allocators, so the node port range is subdivided and dynamic allocated NodePort port for Services are allocated preferentially from the upper range. (#114418, @xuzhenglun)

  • Added scheduler preemption support for pods using ReadWriteOncePod PVCs (#114051, @chrishenzie)

  • Added the applyconfiguration generator to the code-generator script that generates server-side apply configuration and client APIs (#114987, @astefanutti)

  • Added the ability to host webhooks in the cloud controller manager. (#108838, @nckturner)

  • Apiserver_storage_transformation_operations_total metric has been updated to include labels transformer_prefix and status. (#115394, @ritazh) [SIG API Machinery, Auth, Instrumentation and Testing]

  • By enabling the UserNamespacesStatelessPodsSupport feature gate in kubelet, you can now run a stateless pod in a separate user namespace (#116377, @giuseppe) [SIG Apps, Node and Storage]

  • By enabling the alpha CloudNodeIPs feature gate in kubelet and the cloud provider, you can now specify a dual-stack --node-ip value (when using an external cloud provider that supports that functionality). (#116305, @danwinship) [SIG API Machinery, Cloud Provider, Network and Node]

  • Changed kubectl --subresource flag to beta (#116595, @MadhavJivrajani)

  • Changed metrics for aggregated discovery to publish new time series (alpha). (#115630, @Jefftree) [SIG API Machinery and Testing]

  • Dynamic Resource Allocation framework can be used for network devices (#114364, @bart0sh) [SIG Node]

  • Enable external plugins can be used as subcommands for kubectl create command if subcommand does not exist as builtin only when KUBECTL_ENABLE_CMD_SHADOW environment variable is exported. (#116293, @ardaguclu)

  • GRPC probes now set a linger option of 1s to improve the TIME-WAIT state. (#115321, @rphillips) [SIG Network and Node]

  • Graduated CRI Events driven Pod LifeCycle Event Generator (Evented PLEG) to Beta (#115967, @harche)

  • Graduated matchLabelKeys in podTopologySpread to Beta (#116291, @denkensk)

  • Graduated the CSINodeExpandSecret feature to Beta. This feature facilitates passing secrets to CSI driver as part of Node Expansion CSI operation. (#115621, @humblec)

  • Graduated the LegacyServiceAccountTokenTracking feature gate to Beta. The usage of auto-generated secret-based service account token now produces warnings by default, and relevant Secrets are labeled with a last-used timestamp (label key kubernetes.io/legacy-token-last-used). (#114523, @zshihang) [SIG API Machinery and Auth]

  • HPA controller exposes the following metrics from the kube-controller-manager.

    • metric_computation_duration_seconds: The time(seconds) that the HPA controller takes to calculate one metric.
    • metric_computation_total: Number of metric computations. (#116326, @sanposhiho) [SIG Apps, Autoscaling and Instrumentation]

  • HPA controller starts to expose metrics from the kube-controller-manager.\n- reconciliations_total: Number of reconciliation of HPA controller. \n- reconciliation_duration_seconds: The time(seconds) that the HPA controller takes to reconcile once. (#116010, @sanposhiho)

  • Kube-up now includes CoreDNS version v1.9.3 (#114279, @pacoxu)

  • Kubeadm: added the experimental (alpha) feature gate EtcdLearnerMode that allows etcd members to be joined as learner and only then promoted as voting members (#113318, @pacoxu)

  • Kubectl will now display SeccompProfile for pods, containers and ephemeral containers, if values were set. (#113284, @williamyeh)

  • Kubectl: added e2e test for default container annotation (#115046, @pacoxu)

  • Kubelet TCP and HTTP probes are now more effective using networking resources: conntrack entries, sockets. This is achieved by reducing the TIME-WAIT state of the connection to 1 second, instead of the defaults 60 seconds. This allows kubelet to free the socket, and free conntrack entry and ephemeral port associated. (#115143, @aojea)

  • Kubelet allows pods to use the net.ipv4.ip_local_reserved_ports sysctl by default and the minimal kernel version is 3.16; Pod Security admission allows this sysctl in v1.27+ versions of the baseline and restricted policies. (#115374, @pacoxu) [SIG Auth, Network and Node]

  • Kubelet config file will be backed up to /etc/kubernetes/tmp/ folder with kubeadm-kubelet-config append with a random suffix as the filename (#114695, @chendave) [SIG Cluster Lifecycle]

  • Kubernetes is now built with Go 1.19.5 (#115010, @cpanato)

  • Kubernetes is now built with go 1.20 (#114502, @cpanato) [SIG Release and Testing]

  • Kubernetes is now built with go 1.20.1 (#115828, @cpanato) [SIG Release and Testing]

  • Kubernetes is now built with go 1.20.2 (#116404, @cpanato) [SIG Release and Testing]

  • Locked CSIMigrationvSphere feature gate. (#116610, @xing-yang)

  • Made apiextensions-apiserver binary linking static (also affects the deb and rpm packages). (#114226, @saschagrunert)

  • Made kube-aggregator binary linking static (also affects the deb and rpm packages). (#114227, @saschagrunert)

  • Made kubectl-convert binary linking static (also affects the deb and rpm packages). (#114228, @saschagrunert)

  • Migrated controller helper functions to use contextual logging. (#115049, @fatsheep9146)

  • Migrated the ResourceQuota controller (within kube-controller-manager) to use contextual logging. (#113315, @ncdc) [SIG API Machinery, Apps and Testing]

  • Migrated the StatefulSet controller (within kube-controller-manager) to use contextual logging (#113840, @249043822)

  • Migrated the ClusterRole aggregation controller (within kube-controller-manager) to use contextual logging. (#113910, @mengjiao-liu)

  • Migrated the Deployment controller (within kube-controller-manager) to use contextual logging (#113525, @249043822)

  • Migrated the ReplicaSet controller (within kube-controller-manager) to use contextual logging. (#114871, @Namanl2001)

  • Migrated the bootstrap signer controller and the token cleaner controller (within kube-controller-manager) to use contextual logging. (#113464, @mengjiao-liu) [SIG API Machinery, Apps and Instrumentation]

  • Migrated the defaultbinder scheduler plugin to use contextual logging. (#116571, @mengjiao-liu) [SIG Instrumentation and Scheduling]

  • Migrated the main kube-controller-manager binary to use contextual logging. (#116529, @pohly)

  • Migrated the namespace controller (within kube-controller-manager) to support contextual logging. (#113443, @yangjunmyfm192085)

  • Migrated the service-account controller (within kube-controller-manager) to use contextual logging. (#114918, @Namanl2001) [SIG API Machinery, Apps, Auth, Instrumentation and Testing]

  • Migrated the volume attach/detach controller (within kube-controller-manager) to use contextual logging. Migrated the PersistentVolumeClaim protection controller (within kube-controller-manager) to use contextual logging. Migrated the PersistentVolume protection controller (within kube-controller-manager) to use contextual logging. (#113584, @yangjunmyfm192085)

  • Migrated the “TTL after finished” controller (within kube-controller-manager)to use contextual logging. (#113916, @songxiao-wang87)

  • Migrated the cronjob controller (within kube-controller-manager)to use contextual logging (#113428, @mengjiao-liu)

  • New plugin_evaluation_total is added to the scheduler.This metric counts how many times the specific plugin affects the scheduling result. The metric does not get incremented when the plugin has nothing to do with an incoming Pod. (#115082, @sanposhiho)

  • Node ipam controller now exposes metrics cidrset_cidrs_max_total and multicidrset_cidrs_max_total with information about the max number of CIDRs that can be allocated. (#112260, @aryan9600)

  • Performance improvements in klog (#115277, @pohly)

  • Pod template schedulingGates are now mutable for Jobs that are suspended and have never been started (#115940, @ahg-g) [SIG Apps]

  • Pods which have an invalid negative spec.terminationGracePeriodSeconds value will now be treated as having a terminationGracePeriodSeconds of 1 (#115606, @wzshiming)

  • Profiling can now be served on a unix-domain socket by using the --profiling-path option (when profiling is enabled) for security purposes. (#114191, @apelisse) [SIG API Machinery]

  • Promote aggregated discovery endpoint to beta and it will be enabled by default (#116108, @Jefftree)

  • Promoted OpenAPIV3 to GA (#116235, @Jefftree)

  • Promoted whoami kubectl command. (#116510, @nabokihms)

  • Scheduler no longer runs the plugin's Filter method when its PreFilter method returned a Skip status. In other words, your PreFilter/Filter plugin can return a Skip status in PreFilter if the plugin does nothing in Filter for that Pod. Scheduler skips NodeAffinity Filter plugin when NodeAffinity Filter plugin has nothing to do with a Pod. It may affect some metrics values related to the NodeAffinity Filter plugin. (#114125, @sanposhiho)

  • Scheduler now skips InterPodAffinity Filter plugin when InterPodAffinity Filter plugin has nothing to do with a Pod. It may affect some metrics values related to the InterPodAffinity Filter plugin. (#114889, @sanposhiho)

  • Scheduler volumebinding: leveraged PreFilterResult to reduce down to only eligible node(s) for pod with bound claim(s) to local PersistentVolume(s) (#109877, @yibozhuang)

  • Scheduling cycle now terminates immediately when any scheduler plugin returns an unschedulableAndUnresolvable status in PostFilter. (#114699, @kerthcet)

  • Since Kubernetes v1.5, kubectl apply has had an alpha-stage --prune flag to support deleting previously applied objects that have been removed from the input manifest. This feature has remained in alpha ever since due to performance and correctness issues inherent in its design. This PR exposes a second, independent pruning alpha powered by a new standard named ApplySets. An ApplySet is a server-side object (by default, a Secret; ConfigMaps are also allowed) that kubectl can use to accurately and efficiently track set membership across apply operations. The format used for ApplySet is set out in KEP 3659 as a low-level specification. Other tools in the ecosystem can also build on this specification for improved interoperability. To try the ApplySet-based pruning alpha, set KUBECTL_APPLYSET=true and use the flags --prune --applyset=secret-name with kubectl apply. (#116205, @justinsb)

  • Switched kubectl explain to use OpenAPIV3 information published by the server. OpenAPIV2 backend can still be used with the --output plaintext-openapiv2 argument (#116390, @alexzielenski) [SIG API Machinery, CLI and Testing]

  • The Pod API field .spec.schedulingGates[*].name now requires qualified names (like example.com/mygate), matching validation for names of .spec.readinessGates[*].name. Any uses of the alpha scheduling gate feature prior to 1.27 that do not match that validation must be renamed or deleted before upgrading to 1.27. (#115821, @lianghao208) [SIG Apps and Scheduling]

  • The Scheduler did not run the plugin Score method when its PreScore method returned a Skip status. In other words, the PreScore/Score plugin could return a Skip status in PreScore if the plugin did nothing in Score for that Pod. (#115652, @AxeZhan)

  • The AdvancedAuditing feature gate was locked to true in v1.27, and will be removed completely in v1.28 (#115163, @SataQiu) [SIG API Machinery]

  • The JobMutableNodeSchedulingDirectives feature gate has graduated to GA. (#116116, @ahg-g) [SIG Apps, Scheduling and Testing]

  • The ReadWriteOncePod feature gate has been graduated to beta. (#114494, @chrishenzie)

  • The bug which caused the status of Indexed Jobs to only update when new indexes were completed was fixed. Now, completed indexes are updated even if the .status.completedIndexes values are outside the [0, .spec.completions> range. (#115349, @danielvegamyhre)

  • The go version defined in .go-version is now fetched when invoking test, build, and code generation targets if the current go version does not match it. Set $FORCE_HOST_GO=y while testing or building to skip this behavior, or set $GO_VERSION to override the selected go version. (#115377, @liggitt) [SIG Testing]

  • The job controller back-off logic is now decoupled from workqueue. In case of parallelism > 1, if there are multiple new failures in a reconciliation cycle, all the failures are taken into account to compute the back-off. Previously, the back-off kicked in for all types of failures; with this change, only pod failures are taken into account. If the back-off limits exceeds, the job is marked as failed immediately; before this change, the job is marked as failed in the next back-off. (#114768, @sathyanarays) [SIG Apps and Testing]

  • The mount-utils mounter now provides an option to limit the number of concurrent format operations. (#115379, @artemvmin) [SIG API Machinery, Architecture, Auth, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation, Network, Node and Storage]

  • The scheduler's metric plugin_execution_duration_seconds now records PreEnqueue plugins execution seconds. (#116201, @sanposhiho)

  • Two changes to the /debug/api_priority_and_fairness/dump_priority_levels endpoint of API Priority and Fairness: added total number of dispatched, timed-out, rejected and cancelled requests; output now sorted by PriorityLevelName. (#112393, @borgerli)

  • Unlocked the CSIMigrationvSphere feature gate. The change allow users to continue using the in-tree vSphere driver,pending a vSphere CSI driver release that has with GA support for Windows, XFS, and raw block access. (#116342, @msau42) [SIG Storage]

  • Updated cAdvisor to v0.47.0 (#114883, @bobbypage)

  • Updated kube-apiserver SLO/SLI latency metrics to exclude priority & fairness queue wait times (#116420, @andrewsykim)

  • Updated distroless iptables to use released image registry.k8s.io/build-image/distroless-iptables:v0.2.2

    • Updated setcap to use released image registry.k8s.io/build-image/setcap:bullseye-v1.4.2 (#116509, @cpanato) [SIG Testing]

  • Updated distroless iptables to use released image registry.k8s.io/distroless-iptables:v0.2.1 (#115905, @cpanato) [SIG Testing]

  • Upgrades functionality of kubectl kustomize as described at https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize%2Fv5.0.0 and https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize%2Fv5.0.1.

    This is a new major release of kustomize, so there are a few backwards-incompatible changes, most of which are rare use cases, bug fixes with side effects, or things that have been deprecated for multiple releases already:

    • kubernetes-sigs/kustomize#4911: Drop support for a very old, legacy style of patches. patches used to be allowed to be used as an alias for patchesStrategicMerge in kustomize v3. You now have to use patchesStrategicMerge explicitly, or update to the new syntax supported by patches. See examples in the PR description of kubernetes-sigs/kustomize#4911.
    • kubernetes-sigs/kustomize#4731: Remove a potential build-time side-effect in ConfigMapGenerator and SecretGenerator, which loaded values from the local environment under some circumstances, breaking kustomize build's side-effect-free promise. While this behavior was never intended, we deprecated it and are announcing it as a breaking change since it existed for a long time. See also the Eschewed Features documentation.
    • kubernetes-sigs/kustomize#4985: If you previously included .git in an AWS or Azure URL, we will no longer automatically remove that suffix. You may need to add an extra / to replace the .git for the URL to properly resolve.
    • kubernetes-sigs/kustomize#4954: Drop support for using gh: as a host (e.g. gh:kubernetes-sigs/kustomize). We were unable to find any usage of or basis for this and believe it may have been targeting a custom gitconfig shorthand syntax. (#116598, @natasha41575) [SIG CLI]

  • When an unsupported PodDisruptionBudget configuration is found, an event and log will be emitted to inform users of the misconfiguration. (#115861, @JayKayy) [SIG Apps]

  • [E2E] Pods spawned by E2E tests can now pull images from the private registry using the new --e2e-docker-config-file flag (#114625, @Divya063) [SIG Node and Testing]

  • [alpha: kubectl apply --prune --applyset] Enabled certain custom resources (CRs) to be used as ApplySet parent objects. To enable this for a given CR, apply the label applyset.kubernetes.io/is-parent-type: true to the CustomResourceDefinition (CRD) that defines it. (#116353, @KnVerey)

  • Kubelet no longer creates certain legacy iptables rules by default. It is possible that this will cause problems with some third-party components that improperly depended on those rules. If this affects you, you can run kubelet with --feature-gates=IPTablesOwnershipCleanup=false, but a bug should also be filed against the third-party component. (#114472, @danwinship)

  • MinDomainsInPodTopologySpread feature gate is enabled by default as a Beta feature in 1.27. (#114445, @mengjiao-liu)

  • Secret of kubernetes.io/tls type now verifies that the private key matches the cert (#113581, @aimuz)

  • StorageVersionGC (within kube-controller-manager) to use contextual logging. (#113986, @songxiao-wang87)

  • client-go: sharedInformerFactory now waits for goroutines during shutdown for metadatainformer and dynamicinformer. (#114434, @howardjohn)

  • kube-proxy now accepts the ContextualLogging, LoggingAlphaOptions, LoggingBetaOptions (#115233, @pohly)

  • kube-scheduler: Optimized implementation of null labelSelector in topology spreading. (#116607, @alculquicondor)

  • kubeadm: now shows a warning message when detecting that the sandbox image of the container runtime is inconsistent with that used by kubeadm (#115610, @SataQiu)

  • kubectl now uses HorizontalPodAutoscaler v2 by default. (#114886, @a7i)

  • Kubernetes is now built with Go 1.20.3 (#117125, @xmudrii) [SIG Release and Testing]

  • Updated distroless iptables to use released image registry.k8s.io/build-image/distroless-iptables:v0.2.3 (#117126, @xmudrii) [SIG Testing]

Documentation

  • Documented the reason field in CRI API to ensure it equals OOMKilled for the containers terminated by OOM killer (#112977, @mimowo)

  • Error message for Pods with requests exceeding limits will have a limit value printed. (#112925, @SergeyKanzhelev)

  • The change affects the following CLI command:

    kubectl create rolebinding -h (#107124, @ptux) [SIG CLI]

Failing Test

  • Deflaked a preemption test that may patch Nodes incorrectly. (#114350, @Huang-Wei)
  • Fixed panic in vSphere e2e tests. (#115863, @jsafrane) [SIG Storage and Testing]
  • Setting the Kubelet config option --resolv-conf=Host on Windows will now result in Kubelet applying the Pod DNS Policies as intended. (#110566, @claudiubelu)

Bug or Regression

  • Added (dry run) and (server dry run) suffixes to kubectl scale command when dry-run is passed (#114252, @ardaguclu)

  • Applied configurations can be generated for types with non-builtin map fields (#114920, @astefanutti)

  • Changed the error message of kubectl rollout restart when subsequent kubectl rollout restart commands are executed within a second (#113040, @ardaguclu)

  • Changed the error message to cannot exec into multiple objects at a time when file passed to kubectl exec contains multiple resources (#114249, @ardaguclu)

  • Client-go: fixed potential data races retrying requests using a custom io.Reader body; with this fix, only requests with no body or with string / []byte / runtime.Object bodies can be retried (#113933, @liggitt)

  • Describing the CRs will now hide .metadata.managedFields (#114584, @soltysh)

  • Discovery document will correctly return the resources for aggregated apiservers that do not implement aggregated disovery (#115770, @Jefftree)

  • Excluded preemptor pod metadata in the event message (#114923, @mimowo)

  • Expanded the partial fix for kubernetes#111539 which was already started in kubernetes#109706 Specifically, we will now reduce the amount of syncs for ETP=local services even further in the CCM and avoid re-configuring LBs to an even greater extent. (#111658, @alexanderConstantinescu)

  • File content check for IPV4 is now enabled by default, and the check of IPV4 or IPV6 is done for kubeadm init or kubeadm join only in case the user intends to create a cluster to support that kind of IP address family (#115420, @chendave)

  • Fixed CSI PersistentVolumes to allow Secrets names longer than 63 characters. (#114776, @jsafrane)

  • Fixed Route controller to update routes when NodeIP changes (#108095, @lzhecheng)

  • Fixed DaemonSet to update the status even if it fails to create a pod. (#113787, @gjkim42)

  • Fixed SELinux label for host path volumes created by host path provisioner (#112021, @mrunalp)

  • Fixed StatefulSetAutoDeletePVC feature when OwnerReferencesPermissionEnforcement admission plugin is enabled. (#114116, @jsafrane)

  • Fixed a bug on the EndpointSlice mirroring controller that generated multiple slices in some cases for custom endpoints in non canonical format. (#114155, @aojea)

  • Fixed a bug that caused the apiserver to panic when trying to allocate a Service with a dynamic ClusterIP and was configured with Service CIDRs with a /28 mask for IPv4 and a /124 mask for IPv6 (#115322, @aojea)

  • Fixed a bug where Kubernetes would apply a default StorageClass to a PersistentVolumeClaim, even when the deprecated annotation volume.beta.kubernetes.io/storage-class was set. (#116089, @cvvz) [SIG Apps and Storage]

  • Fixed a bug where events/v1 Events with similar event type and reporting instance were not aggregated by client-go. (#112365, @dgrisonnet)

  • Fixed a bug where when emitting similar Events consecutively, some were rejected by the apiserver. (#114237, @dgrisonnet)

  • Fixed a data race when emitting similar Events consecutively (#114236, @dgrisonnet)

  • Fixed a log line in scheduler that inaccurately implies that volume binding has finalized (#116018, @TommyStarK)

  • Fixed a rare race condition in kube-apiserver that could lead to missing events when a watch API request was created at the same time kube-apiserver was re-initializing its internal watch. (#116172, @wojtek-t)

  • Fixed a regression in the pod binding subresource to honor the metadata.uid precondition. This allows kube-scheduler to ensure it is assigns node names to the same instances of pods it made scheduling decisions for. (#116550, @alculquicondor)

  • Fixed a regression that the scheduler always goes through all Filter plugins. (#114518, @Huang-Wei)

  • Fixed an EndpointSlice Controller hashing bug that could cause EndpointSlices to incorrectly handle Pods with duplicate IP addresses. For example this could happen when a new Pod reused an IP that was also assigned to a Pod in a completed state. (#115907, @qinqon) [SIG Apps and Network]

  • Fixed an issue where a CSI migrated volume may be prematurely detached when the CSI driver is not running on the node. If CSI migration is enabled on the node, even the csi-driver is not up and ready, we will still add this volume to DSW. (#115464, @sunnylovestiramisu)

  • Fixed an issue where failed pods associated with a job with parallelism = 1 are recreated by the job controller honoring exponential backoff delay again. However, for jobs with parallelism > 1, pods might be created without exponential backoff delay. (#114516, @nikhita)

  • Fixed an issue with Winkernel Proxier - ClusterIP Loadbalancers missing if the ExternalTrafficPolicy is set to Local and the available endpoints are all remoteEndpoints. (#115919, @princepereira)

  • Fixed bug in CRD Validation Rules (beta) and ValidatingAdmissionPolicy (alpha) where all admission requests could result in internal error: runtime error: index out of range [3] with length 3 evaluating rule: <rule name> under certain circumstances. (#114857, @jpbetz)

  • Fixed bug in beta aggregated discovery endpoint which caused CRD discovery information to be temporarily missing when an Aggregated APIService with the same GroupVersion is deleted (and vice versa). (#116770, @alexzielenski)

  • Fixed bug in reflector that couldn't recover from Too large resource version errors with API servers before 1.17.0. (#115093, @xuzhenglun)

  • Fixed clearing of rate-limiter for the queue of checks for cleaning stale pod disruption conditions. The bug could result in the PDB synchronization updates firing too often or the pod disruption cleanups taking too long to happen. (#114770, @mimowo)

  • Fixed data race in kube-scheduler when preemption races with a Pod update. (#116395, @alculquicondor) [SIG Scheduling]

  • Fixed file permission issues that happened during update of Secret/ConfigMap/projected volume when fsGroup is used. The problem caused a race condition where application gets intermittent permission denied error when reading files that were just updated, before the correct permissions were applied. (#114464, @tsaarni)

  • Fixed incorrect watch events when a watch is initialized simultanously with a reinitializing watchcache. (#116436, @wojtek-t)

  • Fixed issue in Winkernel Proxier - Unexpected active TCP connection drops while horizontally scaling the endpoints for a LoadBalancer Service with Internal Traffic Policy: Local (#113742, @princepereira)

  • Fixed issue on Windows when calculating cpu limits on nodes with more than 64 logical processors (#114231, @mweibel)

  • Fixed issue with Winkernel Proxier - IPV6 load balancer policies were missing when service was configured with ipFamilyPolicy: RequireDualStack (#115503, @princepereira)

  • Fixed issue with Winkernel Proxier - IPV6 load balancer policies were missing when service was configured with ipFamilyPolicy: RequireDualStack (#115577, @princepereira)

  • Fixed issue with Winkernel Proxier - No ingress load balancer rules with endpoints to support load balancing when all the endpoints are terminating. (#113776, @princepereira)

  • Fixed missing delete events on informer re-lists to ensure all delete events were correctly emitted and using the latest known object state, so that all event handlers and stores always reflect the actual apiserver state as best as possible (#115620, @odinuge)

  • Fixed nil pointer error in NodeVolumeLimits csi logging (#115179, @sunnylovestiramisu)

  • Fixed panic validating custom resource definition schemas that set multipleOf to 0 (#114869, @liggitt)

  • Fixed performance regression in scheduler caused by frequent metric lookup on critical code path. (#116428, @mborsz) [SIG Scheduling]

  • Fixed stuck apiserver if an aggregated apiservice returned 304 Not Modified for aggregated discovery information (#114459, @alexzielenski)

  • Fixed the problem Pod terminating stuck because of trying to umount not actual mounted dir. (#115769, @mochizuki875)

  • Fixed the regression that introduced 34s timeout for DELETECOLLECTION calls (#115341, @tkashem)

  • Fixed two regressions introduced by the PodDisruptionConditions feature (on by default in 1.26):

    • pod eviction API calls returned spurious precondition errors and required a second evict API call to succeed
    • dry-run eviction API calls persisted a DisruptionTarget condition into the pod being evicted (#116554, @atiratree)

  • Fixes #115825. Kube-proxy will now include the healthz state in its response to the LB HC as to avoid indicating to the LB that it should use the node in question when Kube-proxy is not healthy. (#111661, @alexanderConstantinescu) [SIG Network]

  • Flag --concurrent-node-syncs has been added to cloud node controller which defines how many workers in parallel will be initialising and synchronising nodes. (#113104, @pawbana) [SIG API Machinery, Cloud Provider and Scalability]

  • Force deleted pods may fail to terminate until the kubelet is restarted when the container runtime returns an error during termination. We have strengthened testing for runtime failures and now perform a more rigorous reconciliation to ensure static pods (especially those that use fixed UIDs) are restarted. As a side effect of these changes static pods will be restarted with lower latency than before (2s vs 4s, on average) and rapid updates to pod configuration should take effect sooner.

    A new metric kubelet_known_pods has been added at ALPHA stability to report the number of pods a Kubelet is tracking in a number of internal states. Operators may use the metrics to track an excess of pods in the orphaned state that may not be completing. (#113145, @smarterclayton) [SIG API Machinery, Auth, Cloud Provider, Node and Testing]

  • From now on, the HPA controller will return an error for the container resource metrics when the feature gate HPAContainerMetrics is disabled. As a result, HPA with a container resource metric performs no scale-down and performs only. (#116043, @sanposhiho)

  • IPVS: Any ipvs scheduler can now be configured. If a un-usable scheduler is configured kube-proxy will re-start and the logs must be checked (same as before but different log printouts). (#114878, @uablrek)

  • If a user attempts to add an ephemeral container to a static pod, they will now get a visible validation error. (#114086, @xmcqueen)

  • Ingress with ingressClass annotation and IngressClassName both set can be created now. (#115447, @AxeZhan)

  • Kube-apiserver: errors decoding objects in etcd are now recorded in an apiserver_storage_decode_errors_total counter metric (#114376, @baomingwang) [SIG API Machinery and Instrumentation]

  • Kube-apiserver: regular expressions specified with the --cors-allowed-origins option are now validated to match the entire hostname inside the Origin header of the request and must contain '^' or the '//' prefix to anchor to the start, and '$' or the port separator ':' to anchor to the end. (#112809, @tkashem) [SIG API Machinery]

  • Kube-apiserver: removed N^2 behavior loading webhook configurations. (#114794, @lavalamp) [SIG API Machinery, Architecture, CLI, Cloud Provider and Node]

  • Kubeadm: fixed an etcd learner-mode bug by preparing an etcd static pod manifest before promoting (#115038, @tobiasgiese)

  • Kubeadm: fixed the bug where kubeadm always does CRI detection even if it is not required by a phase subcommand (#114455, @SataQiu)

  • Kubeadm: improved retries when updating node information, in case kube-apiserver is temporarily unavailable (#114176, @QuantumEnergyE)

  • Kubeadm: modified --configflag from required to optional forkubeadm kubeconfig user` command (#116074, @SataQiu)

  • Kubectl: enabled usage of label selector for filtering out resources when pruning for kubectl diff (#114863, @danlenar)

  • Kubelet startup now fails CRI connection if service or image endpoint is throwing any error (#115102, @saschagrunert)

  • Kubelet: fix recording issue when pulling image did finish (#114904, @TommyStarK) [SIG Node]

  • Kubelet: fixed a bug in kubeletthat stopped rendering theConfigMapswhenfsquota` monitoring is enabled (#112624, @pacoxu)

  • Messages of DisruptionTarget condition now excludes preemptor pod metadata (#114914, @mimowo)

  • Optimized LoadBalancer creation with the help of attribute Internal Traffic Policy: Local (#114407, @princepereira)

  • PVCs will automatically be recreated if they are missing for a pending Pod. (#113270, @rrangith) [SIG Apps and Testing]

  • PersistentVolume API objects which set NodeAffinities using beta Kubernetes labels for OS, architecture, zone, region, and instance type may now be modified to use the stable Kubernetes labels. (#115391, @haoruan)

  • Potentially breaking change - Updating the polling interval for Windows stats collection from 1 second to 10 seconds (#116546, @marosset) [SIG Node and Windows]

  • Relaxed API validation for usage key encipherment and kubelet uses requested usages accordingly (#111660, @pacoxu)

  • Removed scheduler names from preemption event messages. (#114980, @mimowo)

  • Shared informers now correctly propagate whether they are synced or not. Individual informer handlers may now check if they are synced or not (new HasSynced method). Library support is added to assist controllers in tracking whether their own work is completed for items in the initial list (AsyncTracker). (#113985, @lavalamp)

  • The Kubernetes API server now correctly detects and closes existing TLS connections when its client certificate file for kubelet authentication has been rotated. (#115315, @enj) [SIG API Machinery, Auth, Node and Testing]

  • Total test spec is now available by ProgressReporter, it will be reported before test suite got executed. (#114417, @chendave)

  • Updated the Event series starting count when emitting isomorphic events from 1 to 2. (#112334, @dgrisonnet)

  • When GCing pods, kube-controller-manager will delete Evicted pods first. (#116167, @borgerli)

  • When describing deployments, OldReplicaSets now always shows all replicasets controlled the deployment, not just those that still have replicas available. (#113083, @llorllale) [SIG CLI]

  • Windows CPU usage node stats are now correctly calculated for nodes with multiple Processor Groups. (#110864, @claudiubelu) [SIG Node, Testing and Windows]

  • LabelSelectors specified in topologySpreadConstraints were validated to ensure that pods are scheduled as expected. Existing pods with invalid LabelSelectors could be updated, but new pods were required to specify valid LabelSelectors. (#111802, @maaoBit)

  • PodGC for pods which are in terminal phase now do not add the DisruptionTarget condition. (#115056, @mimowo)

  • Service of type ExternalName do not create an Endpoint anymore. (#114814, @panslava)

  • cacher: If ResourceVersion is unset, the watch is now served from the underlying storage as documented. (#115096, @MadhavJivrajani)

  • client-go: fixed the wait time for trying to acquire the leader lease (#114872, @Iceber)

  • etcd: Updated to v3.5.7 (#115310, @mzaian)

  • golang.org/x/net updated to v0.7.0 to fix CVE-2022-41723 (#115786, @liggitt)

  • kube-controller-manager will not run nodeipam controller when allocator type is CloudAllocator and the cloud provider is not enabled. (#114596, @andrewsykim)

  • kube-controller-manager: fixed a bug that the kubeconfig field of kubecontrollermanager.config.k8s.io configuration is not populated correctly (#116219, @SataQiu)

  • kube-proxy with --proxy-mode=ipvs can be used with statically linked kernels. The reseved IPv4 range TEST-NET-2 in rfc5737 MUST NOT be used for ClusterIP or loadBalancerIP since address 198.51.100.0 is used for probing. (#114669, @uablrek)

  • kubeadm: fixed a bug where the uploaded kubelet configuration in kube-system/kubelet-config ConfigMap does not respect user patch (#115575, @SataQiu)

  • kubeadm: now respects user provided kubeconfig during discovery process (#113998, @SataQiu)

  • kubectl port-forward now exits with exit code 1 when remote connection is lost (#114460, @brianpursley)

  • nodeName being set along with non-empty schedulingGates is now enforced. (#115569, @Huang-Wei)

  • node_stage_path is now set whenever available for expansion during mount (#115346, @gnufied)

  • statefulset status will now be consistent on API errors (#113834, @atiratree)

  • tryUnmount now respects mounter.withSafeNotMountedBehavior (#114736, @andyzhangx)

  • The encryption response from KMS v2 plugins is now validated earlier at DEK generation time instead of waiting until an encryption is performed. (#116877, @enj) [SIG API Machinery and Auth]

  • Recreate DaemonSet pods completed with Succeeded phase (#117073, @mimowo) [SIG Apps and Testing]

Other (Cleanup or Flake)

  • Added basic Denial Of Service prevention for the the node-local kubelet podresource API (#116459, @ffromani) [SIG Node and Testing]

  • Callers of wait.ExponentialBackoffWithContext now must pass a ConditionWithContextFunc to be consistent with the signature and avoid creating a duplicate context. If your condition does not need a context you can use the ConditionFunc.WithContext() helper to ignore the context, or use ExponentialBackoff directly. (#115113, @smarterclayton)

  • Changed docs for --contention-profiling flag to reflect it performed block profiling (#114490, @MadhavJivrajani)

  • E2e framework: added --report-complete-ginkgo and --report-complete-junit parameters. They work like ginkgo --json-report <report dir>/ginkgo/report.json --junit-report <report dir>/ginkgo/report.xml. (#115678, @pohly) [SIG Testing]

  • Fixed incorrect log information in the iptables utility. (#110723, @yangjunmyfm192085)

  • Improved FormatMap: Improves performance by about 4x, or nearly 2x in the worst case (#112661, @aimuz) [SIG Node]

  • Improved misleading message, in case of no metrics received for the HPA controlled pods. (#114740, @kushagra98)

  • Introduced new metrics removing the redundant subsystem in kube-apiserver pod logs metrics and deprecate the original ones:

    • kube_apiserver_pod_logs_pods_logs_backend_tls_failure_total becomes kube_apiserver_pod_logs_backend_tls_failure_total
    • kube_apiserver_pod_logs_pods_logs_insecure_backend_total becomes kube_apiserver_pod_logs_insecure_backend_total (#114497, @dgrisonnet)

  • Kubeadm: removed the deprecated v1beta2 API. kubeadm 1.26's config migrate command can be used to migrate a v1beta2 configuration file to v1beta3 (#114540, @pacoxu)

  • Kubelet: remove deprecated flag --container-runtime (#114017, @calvin0327) [SIG Cloud Provider and Node]

  • Kubelet: the deprecated --master-service-namespace flag is removed in v1.27 (#116015, @SataQiu)

  • Linux/arm will not ship in Kubernetes 1.27 as we are running into issues with building artifacts using golang 1.20.2 (please see issue #116492) (#115742, @dims) [SIG Architecture, Release and Testing]

  • Migrated pkg/controller/nodeipam/ipam/cloud_cidr_allocator.go, pkg/controller/nodeipam/ipam/multi_cidr_range_allocator.go pkg/controller/nodeipam/ipam/range_allocator.go pkg/controller/nodelifecycle/node_lifecycle_controller.go to structured logging (#112670, @yangjunmyfm192085)

  • Migrated the Kubernetes object garbage collector (within kube-controller-manager) to use contextual logging. (#113471, @ncdc)

  • Migrated the ttlafterfinished controller (within kube-controller-manager) to use contextual logging. (#115332, @obaranov1) [SIG Apps]

  • Migrated the “sample-controller” controller to use contextual logging. (#113879, @pchan) [SIG API Machinery and Instrumentation]

  • Promoted pod resource limit/request metrics to stable. (#115454, @dgrisonnet)

  • Removed AWS kubelet credential provider. Please use the external kubelet credential provider binary named ecr-credential-provider instead. (#116329, @dims) [SIG Node, Storage and Testing]

  • Removed Azure disk in-tree storage plugin (#116301, @andyzhangx)

  • Removed flag master-service-namespace from api-server arguments (#114446, @lengrongfu)

  • Removed the following deprecated metrics:

    • node_collector_evictions_number replaced by node_collector_evictions_total
    • scheduler_e2e_scheduling_duration_seconds replaced by scheduler_scheduling_attempt_duration_seconds (#115209, @dgrisonnet)

  • Removed unused rule for nodes/spec from ClusterRole system:kubelet-api-admin (#113267, @hoskeri)

  • Renamed API server identity Lease labels to use the key apiserver.kubernetes.io/identity (#114586, @andrewsykim) [SIG API Machinery, Apps, Cloud Provider and Testing]

  • Storage.k8s.io/v1beta1 API version of CSIStorageCapacity will no longer be served (#116523, @pacoxu) [SIG API Machinery]

  • The CSIMigrationAzureFile feature gate (for the feature which graduated to GA in v1.26) is now unconditionally enabled and will be removed in v1.28. (#114953, @enj)

  • The ControllerManagerLeaderMigration feature, GA since 1.24, is now unconditionally enabled and the feature gate option has been removed. (#113534, @pacoxu)

  • The WaitFor and WaitForWithContext functions in the wait package have now been marked private. Callers should use the equivalent Poll* method with a zero duration interval. (#115116, @smarterclayton)

  • The wait.Poll* and wait.ExponentialBackoff* functions have been deprecated and will be removed in a future release. Callers should switch to using wait.PollUntilContextCancel, wait.PollUntilContextTimeout, or wait.ExponentialBackoffWithContext as appropriate.

    PollWithContext(Cancel|Deadline) will no longer return ErrWaitTimeout - use the Interrupted(error) bool helper to replace checks for err == ErrWaitTimeout, or compare specifically to context errors as needed. A future release will make the ErrWaitTimeout error private and callers must use Interrupted() instead. If you are returning ErrWaitTimeout from your own methods, switch to creating a location specific cause err and pass it to the new method wait.ErrorInterrupted(cause) error which will ensure Interrupted() returns true for your loop.

    The wait.NewExponentialBackoffManager and wait.NewJitteringBackoffManager functions have been marked as deprecated. Callers should switch to using the Backoff{...}.DelayWithReset(clock, resetInterval) method and must set the Steps field when using Factor. As a short term change, callers may use the Timer() method on the BackoffManager until the backoff managers are deprecated and removed. Please see the godoc of the deprecated functions for examples of how to replace usage of this function. (#107826, @smarterclayton) [SIG API Machinery, Auth, Cloud Provider, Storage and Testing]

  • The feature gates CSIInlineVolume, CSIMigration, DaemonSetUpdateSurge, EphemeralContainers, IdentifyPodOS, LocalStorageCapacityIsolation, NetworkPolicyEndPort and StatefulSetMinReadySeconds that graduated to GA in v1.25 and were unconditionally enabled have been removed in v1.27 (#114410, @SataQiu) [SIG Node]

  • Upgraded coredns to v1.10.1 (#115603, @pacoxu)

  • Upgraded go-jose to v2.6.0 (#115893, @mgoltzsche)

  • [KCCM - service controller]: enabled connection draining for terminating pods upon node downscale by the cluster autoscaler. This is done by not reacting to the taint used by the cluster autoscaler to indicate that the node is going away soon, thus keeping the node referenced by the load balancer until the VM has been completely deleted. (#115204, @alexanderConstantinescu)

  • apiserver_admission_webhook_admission_duration_seconds buckets have been expanded, 25s is now the largest bucket size to match the webhook default timeout. (#115802, @logicalhan) [SIG API Machinery and Instrumentation]

  • wait.ContextForChannel() now implements the context.Context interface and does not return a cancellation function. (#115140, @smarterclayton)

Dependencies

Added

  • github.com/a8m/tree: 10a5fd5
  • github.com/dougm/pretty: 2ee9d74
  • github.com/rasky/go-xdr: 4930550
  • github.com/vmware/vmw-guestinfo: 25eff15
  • sigs.k8s.io/kustomize/kustomize/v5: v5.0.1

Changed

Removed

  • github.com/PuerkitoBio/purell: v1.1.1
  • github.com/PuerkitoBio/urlesc: de5bf2a
  • github.com/elazarl/goproxy: 947c36d
  • github.com/form3tech-oss/jwt-go: v3.2.3+incompatible
  • github.com/mattn/go-runewidth: v0.0.7
  • github.com/mindprince/gonvml: 9ebdce4
  • github.com/niemeyer/pretty: a10e7ca
  • github.com/olekukonko/tablewriter: v0.0.4
  • sigs.k8s.io/kustomize/kustomize/v4: v4.5.7

v1.27.0-rc.1

Downloads for v1.27.0-rc.1

Source Code

filename sha512 hash
kubernetes.tar.gz f6a57401347cb6c6329f4334d0f5b9408125784c13cac8c69288e49fac9fcf057ba9b38340e170c9ee24840bfd9c6e63df5706760837e321efc2ce4da795d6cb
kubernetes-src.tar.gz 62cca03a925930f58083070e3877df2d3de0fc5a2a96ce4079931fab77c77f10cdd739d1ac9f64c16c3dac107f075c6f112d8ed063e3f466d662e55271487e10

Client Binaries

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kubernetes-client-darwin-amd64.tar.gz 3cf168843bd207f0c277465560c900e09487a3ff5eca6877afc5ca947bf164b7fc20f33c5379783ddf55380ca8370a44e400b37216229496a89309242a6f9bbf
kubernetes-client-darwin-arm64.tar.gz 1b6c7eab5bb7cfe437400049c1d5bb7320828f975c63f3ac07d9e0ef943799f5fc7e0cd283aa6486da5ada075367447963b1346c96ebdb49632535e2f90dd664
kubernetes-client-linux-386.tar.gz 7d4e84fd2fa4a06890c9a5a8fc2af2e01c1f3516eb8d164ef4c97a554536f845993f096828469e845392d39576baa7ba5fa125dabeb17c049f8556ff07d941e6
kubernetes-client-linux-amd64.tar.gz f300c80e465f32b3c365e9c036c02aaaa3e713fa9e7318ce9e426406e07be6f3e6166664d9d940e2c3f073c3044f2d677f32a14e87a1e40acd973625634baf59
kubernetes-client-linux-arm.tar.gz 5152fddf3a01b83c89070403d37c43b46daad2ccf566f484f9f9eaa776b3d022672d902dbef1edd7b8f4241c035208f83d7049c2cf6b76ef1da8d7ffb41d86b3
kubernetes-client-linux-arm64.tar.gz 955c4019d6e52475bb6cf1df7d3db70ea6dbe226b54e145260f4470c53a0c12128e747ac0fae9843b2ed9d598eb3fbe964df2999a999f89726abd63feadb7ccf
kubernetes-client-linux-ppc64le.tar.gz feed26863b79c6a67c3ab7842e11663fa4861982666b451ff13d89c7659482ed08c174b2d70517ef542ba17423e5aff172e30806e17e473815c05d5f6d1c431e
kubernetes-client-linux-s390x.tar.gz 6d3704b1edc07ff244b85e9a387f283524cc9975a527a23c567af0554ebe61f564d10068fe6af5635d71ed2d9e01ca1dc79716177c449493cbbd32903b4c11fd
kubernetes-client-windows-386.tar.gz 4abff8190b3e843b603fae1b6236815c7f15510735ed25f24ffe2ed31a0e904495431b9314366a042eadd1312a3c2e7d97ab4748ac0b67bdb0d0c3b0322a4b36
kubernetes-client-windows-amd64.tar.gz f903c4b8397954a11c10463e1fde15c95805fc048988e66c5d59cba5155e244c12cea98e0502365705c3cae138d251a1a87c2bb29da0e1762e84d08ff225ccc4
kubernetes-client-windows-arm64.tar.gz 4ac1bcba49774c9eba9a562ebc007bbe5963575c9e55917128171b955cc95bc2447352668fe768130b3013fbc425dfc86ed17e6767d59441e3566a456d6356c7

Server Binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz 3c726e0583497813ba93953e17ec93805d18129401ad3e851e44c74d4a2ecb45c2340bf82b53e28c4e480222e7cf85fa4270506103233fbad7f38ac751b16c2d
kubernetes-server-linux-arm64.tar.gz 17ef3d22f86328c2faea3df3b476f5b949e0bab2964f878e2b7b61965381ce3dfe43702aea2cfb9ed191e4e3d41ebbe780eccaa57b943d019cabb2adddafe458
kubernetes-server-linux-ppc64le.tar.gz d35ba5854c853d095f7588372677f1da2a5b3ef5fde846b8cce2925e7ff4fca21b9f3c9afc8eb82a973027a35918887f2d838cf5c3ec29fb2c7af576a2493efb
kubernetes-server-linux-s390x.tar.gz 79568358644e993126aaaf14a4126de5abae4ba2cbf59f264de57045189b53c1ead4ce8bdc75592164537ed6b836261feab1f2f5aca07f218ba5c2db1c80318c

Node Binaries

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kubernetes-node-linux-amd64.tar.gz dd1feed73c4d0ea7be79338500ae413dc5f55a69da0e2a27cf8e44d14f49a514b262c69b6069d1cd709564fac6e030cef581204b3d48e5208b9967a9d42b69af
kubernetes-node-linux-arm64.tar.gz 23421b4f6c4b21168302fa22ddf193f9d2db6a582edfded4cbf88dfa646b1f5f65817165f49bf251cb5c32aaf51a92e425cd92051745f890bfd314a82e292573
kubernetes-node-linux-ppc64le.tar.gz 9149c0bd4765484351e703d074e1554ca0735bed13bc7da3ba511ba8b6e547337f2c2c904e6db8256306b8089018ac66857a212bcb555034487111c07170c5b6
kubernetes-node-linux-s390x.tar.gz 1fc2f78314fc7781f5296ebe82cce905eb841bb551919261571f549f3d39f53dd8b9546f060f31209e129ff9a4dafbb50ebfc68741525b01d82639ef8a48e12c
kubernetes-node-windows-amd64.tar.gz 3ab964ee2fa017e96adf606ce8e8540bc3b79323141548247415e5865dd7447dca4146706cf21a1e36512d6f7950ed866351f9e6427e27c20b27118f81bf5d6c

Container Images

All container images are available as manifest lists and support the described architectures. It is also possible to pull a specific architecture directly by adding the "-$ARCH" suffix to the container image name.

name architectures
registry.k8s.io/conformance:v1.27.0-rc.1 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-apiserver:v1.27.0-rc.1 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-controller-manager:v1.27.0-rc.1 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-proxy:v1.27.0-rc.1 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-scheduler:v1.27.0-rc.1 amd64, arm64, ppc64le, s390x

Changelog since v1.27.0-rc.0

Changes by Kind

Feature

  • Kubernetes is now built with Go 1.20.3 (#117125, @xmudrii) [SIG Release and Testing]
  • Updated distroless iptables to use released image registry.k8s.io/build-image/distroless-iptables:v0.2.3 (#117126, @xmudrii) [SIG Testing]

Bug or Regression

  • Recreate DaemonSet pods completed with Succeeded phase (#117073, @mimowo) [SIG Apps and Testing]
  • The encryption response from KMS v2 plugins is now validated earlier at DEK generation time instead of waiting until an encryption is performed. (#116877, @enj) [SIG API Machinery and Auth]

Dependencies

Added

Nothing has changed.

Changed

Removed

Nothing has changed.

v1.27.0-rc.0

Downloads for v1.27.0-rc.0

Source Code

filename sha512 hash
kubernetes.tar.gz 00c1377aacf2540f9dd92538e95e4d676bb77839edf59645dec6be96d4988d64b79f0a2f4a3e604a42a8c06710a88efc86d7c4bdab8d11269aadbbeaa8f02cc0
kubernetes-src.tar.gz e39d9fe4d1426ad35db1593c75d9bcc1e64178fac46a4c759aeb24cf37e061e1e559ab2fe8d3c4f7f66e813a11aa730aefc06649ba5ff3e8a7ac5b4db79db278

Client Binaries

filename sha512 hash
kubernetes-client-darwin-amd64.tar.gz 811e5f52ee5f000bbac5ef5f45a7266da96ec56054056e793fab1b39dfcea2c872b6c464d163f9ff445e928750ac7fe04539b38751646c06ec204c10968d3114
kubernetes-client-darwin-arm64.tar.gz 4a1b6ee903132f23d153369bdf97b40eeb7d111c67f60fa6367909c0bb6dd82ec7ad017ced4cb381bdbe272db514f5e6f12576b8f4b5f384a4cbd544a39268f5
kubernetes-client-linux-386.tar.gz a422191ad2118c8f1debd73834d5a963d1992441c4c0a917ebfd64818f59038d1971589b9a6f8ba7252949b5bfde62dbfab60da8783502733550c5f65cfae592
kubernetes-client-linux-amd64.tar.gz aca2b4ff673b381da5a979266395b4eea61c48ba59b6ae81555da21394fd535bb4b408ba584586a1336c02bf0706a90ed53ee9b6d0712519612d60b1c1f7b59c
kubernetes-client-linux-arm.tar.gz dd5d9d5adc928e114a9a35d1f845fa98b2b236a3937f056adce5c7280f91d7024f013329e3a9a17329f1247c42a1af7c011d37bfb7830937af2cf14babec3dc4
kubernetes-client-linux-arm64.tar.gz 0dff54bcb39c82a7142dea53ccec384c12637b9b3f261d67338d7ab1508a32897baa29657ffeeaf9bf8e65d11feb25b83349749671c7fb2a38e1a44491f50716
kubernetes-client-linux-ppc64le.tar.gz 28538ade0567bfd90f3b3975ba4e1e5c986fc2a0e7e02d4cd5f93b22a9f7ec9a0b82226938a0512a1b95149e5d801c16b46c9181aff33cf4b02ec958fefdcd73
kubernetes-client-linux-s390x.tar.gz 39cbbed42e2e53955e0b76306046f7ad06a88a800902c76584fe9a8a2741349c1cd74ebf4e9d0c7711e5721dd2b028df3f882eeee7242596c747b39f7ddadf87
kubernetes-client-windows-386.tar.gz 6f5947e9d4760bb00393d9bd8a2a5d389306cb51e0cc46012becaaa2ebbc4f6d0b63d239a7b99f24136ec6ce50ea51032659a68daedd79b8a494acc2cc966e09
kubernetes-client-windows-amd64.tar.gz 5436de39bcb3edbc7db16e8628e161a0c1fea9cf501ec6969622f3980c2b009f62137f9a60bff77b33751d3188f24812b13bafe4b397e341cd3e8979459f9972
kubernetes-client-windows-arm64.tar.gz 9390bc41779539e2475e992969a6f41eb68f82082d75abb793a8c9b832b86f4de42be6e313fb963b9e50ec9fd3265d9b8c8b223f7999d823a74062baaf536406

Server Binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz 652e12dd953d3dbd0fc11c02d145cfe608c41639077a056cc8ecef8d427a73c937d5fc341b8d7e4adb9a68bb6babc3165315106fe554a7ea961f1e1a45cf9566
kubernetes-server-linux-arm64.tar.gz c2d93520b9a7e6554207477527f408698d1b086c9ee6c6c5716f42e007367b15d1d137c723768d0d8b55cc4f1b32e5f2c57bb05b589c3a2ffe71af9c5626e303
kubernetes-server-linux-ppc64le.tar.gz f388a0b93b722814e51c0de14dd332fbe4517549a717237fa3d2d75503d5f0db7d73db154e07bc958e40ca4bea11f88312b5c8b334b77d9494637b0da4046b2e
kubernetes-server-linux-s390x.tar.gz 2ff2af56a4306b807e6792524489c4e2e04b2e9b661b767fe9efa34ede151ff6281b30d2a86332ea9ad69ef3031d96aa072bd099a893ad8db0be81c5c1215d98

Node Binaries

filename sha512 hash
kubernetes-node-linux-amd64.tar.gz 2fbe286b501a1d84bad54c035fd5daecff6268b21adec003ad90b5c6c813964d00853e8014ea8d4fc9e748586801f3231ad5fa405f213c1fc15b5b0e1819eda8
kubernetes-node-linux-arm64.tar.gz 1531ac12836e354269f2c0df254593d37f5860352a408c931594735212aa3504fd0ba21bee6ac8df0081d9502d307f093d6932536bd6a48124884e8925a2a76d
kubernetes-node-linux-ppc64le.tar.gz 87e3599e471a33e922235d6c54eb76c477100c04b185d897896b2942396b609492e851f5537de46b08973732e7518ccdbf5fe88c015b1479bf899e6e8c2549b4
kubernetes-node-linux-s390x.tar.gz 4c67645f9658809cf4357f94c0a8363a9ef4535ee07e7212565443f5e35a3037d87293a57e4b5fdc7cdca4ef946f8f0e1db09f4db87d747230da21df5f59bd8b
kubernetes-node-windows-amd64.tar.gz e5bd3034027e38bfe9ffd81f85a3d4c5f5a3e07542d5d718aa4e89d4d4662530316ac7c3b17bbaeb514ecdcc553117688c58899d067b89ffc0e8f3a282e119c2

Container Images

All container images are available as manifest lists and support the described architectures. It is also possible to pull a specific architecture directly by adding the "-$ARCH" suffix to the container image name.

name architectures
registry.k8s.io/conformance:v1.27.0-rc.0 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-apiserver:v1.27.0-rc.0 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-controller-manager:v1.27.0-rc.0 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-proxy:v1.27.0-rc.0 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-scheduler:v1.27.0-rc.0 amd64, arm64, ppc64le, s390x

Changelog since v1.27.0-beta.0

Changes by Kind

API Change

  • Added a new alpha API: ClusterTrustBundle (certificates.k8s.io/v1alpha1). A ClusterTrustBundle may be used to distribute X.509 trust anchors to workloads within the cluster. (#113218, @ahmedtd) [SIG API Machinery, Auth and Testing]
  • Remove kubernetes.io/grpc standard appProtocol (#116866, @LiorLieberman) [SIG API Machinery and Apps]

Feature

  • Give terminal phase correctly to all pods that will not be restarted.

    In particular, assign Failed phase to pods which are deleted while pending. Also, assign a terminal phase (Succeeded or Failed, depending on the exit statuses of the pod containers) to pods which are deleted while running.

    This fixes the issue for jobs using pod failure policy (with JobPodFailurePolicy and PodDisruptionConditions feature gates enabled) that their pods could get stuck in the pending phase when deleted. (#115331, @mimowo) [SIG Cloud Provider, Node and Testing]

Bug or Regression

  • Fixed two regressions introduced by the PodDisruptionConditions feature (on by default in 1.26):
    • pod eviction API calls returned spurious precondition errors and required a second evict API call to succeed
    • dry-run eviction API calls persisted a DisruptionTarget condition into the pod being evicted (#116554, @atiratree) [SIG API Machinery and Testing]
  • Fixes a regression in the pod binding subresource to honor the metadata.uid precondition. This allows kube-scheduler to ensure it is assigns node names to the same instances of pods it made scheduling decisions for. (#116550, @alculquicondor) [SIG API Machinery and Testing]
  • Fixes bug in beta aggregated discovery endpoint which caused CRD discovery information to be temporarily missing when an Aggregated APIService with the same GroupVersion is deleted (and vice versa). (#116770, @alexzielenski) [SIG API Machinery and Testing]

Dependencies

Added

Nothing has changed.

Changed

Nothing has changed.

Removed

Nothing has changed.

v1.27.0-beta.0

Downloads for v1.27.0-beta.0

Source Code

filename sha512 hash
kubernetes.tar.gz a648cbc81d762e1b37f673871906ebe7f3b871f0a3c527d0dcfb5d20a9f4eff519354155d6a2cec8deabc2f0e9db8bb4b6ac2215597a11caad396e9d31461944
kubernetes-src.tar.gz 2cb02e63a58590dc65962f42a6be484b804595adbecb1bcbfaf94186004bb3f9e0000aa8be9e1fb270de89733ea3baa0853211673e8c2f76d6be436782bba5dd

Client Binaries

filename sha512 hash
kubernetes-client-darwin-amd64.tar.gz 957d1abe4282ae6bba75732b83f858b5c3a61de4148c947862bbc90f0ecf290a3cd94eb267da2127bb2ff28237a50c0b913c261c014e06580a766f69e4b45d5b
kubernetes-client-darwin-arm64.tar.gz 5827723ec6bc6f0d96cd20046bd736a3045f168cbf78a9064645f0e94653f3e751bcca6d18836aa038cb726ab991a48b1451fcc00bd0e751eb0af30d7bf002aa
kubernetes-client-linux-386.tar.gz bdacf9b42269238e97b6301a975c4accd7363a05a63a35305d0d74916c138c70985491ac9d13a152d0b10609f265aede4a910ebed61bdf1b8a37264773dffd3b
kubernetes-client-linux-amd64.tar.gz e139daa8df28d13ad8625c819ba94e6e4dd7805c89dd2a0bba6ce478a2bc7d9b52a3fccc18de08c13dca1b98c693d50d37599e8a3b34b7a1f39401098dea2df5
kubernetes-client-linux-arm.tar.gz 3f669851c6317d67bbcae591056ee9cfda6e9bca3eeac02cc41eae35db3448e745e123ab75da8b9dbb546172b07d625bf821da3b0a1b6420d41140eb7b96b474
kubernetes-client-linux-arm64.tar.gz c8f394650db292a117e1db5a76775541087ab0da9b3d43041d50f3126ef47a0dcb65ebbe61d8be9bdb67adce1c43d5f7a695ff0b9909c8c9461d6937ebe9160f
kubernetes-client-linux-ppc64le.tar.gz 83b51c787f57b698584c3c585a772470819260008808a2102a9e765ef1458d9bb536aeb3e2587d391c6efb06d56326f1c8b47f12ab98069d1605ef210ecd6e8c
kubernetes-client-linux-s390x.tar.gz d79766f56263a78549d7e2bc8f93977d8730435beeb7fe9413686d09ac6a6edc8a868621023623656782272e518fa7955275ab0d4aecb8a71cb4ba544dd5f77d
kubernetes-client-windows-386.tar.gz 399741ba92a59c0c3640f4d4d0c961b63bd24ba8a5ce036f4a82dcd040a0d2873e7e3237af10da1b2982af5ca6ae8edb2a4d023db3af87dfae6c90528a487de3
kubernetes-client-windows-amd64.tar.gz 3eba7adbb6c7c386d04bdddcd6d66ca7f5799789680c7fbb9216a0520884264dc5fdb35a0417d03d77955097c6341a30e3e07d077266c2ed2f96d1765f344e39
kubernetes-client-windows-arm64.tar.gz 158475196f75764dd115e187a5fb27894367a8a2ddad755e3d542e5f225fe9bad476f592c0b7fad2a3dded4638ccec2a1f717eec4d04c8e510334a3a410e0541

Server Binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz fb9caa627e77d1bd39b11106dd95c9dd008c5d418234636a0beddd48e59c980d4924ed3006133e20d2ac0715a4353d14a90f7ebc5345804f24160a13efb7a2b5
kubernetes-server-linux-arm64.tar.gz 34f61cfeba8adf7fd3dd83599e34ed36d5942a41904f0430a7b8a5078d306283a4dd7eec40716c8aa6f4ff87dea1faa588fff66a2c388aac8c7b461a64366c33
kubernetes-server-linux-ppc64le.tar.gz c37a226fa7b6d35b32420c13e67482820f4b23cd9dc9c23820d8f3024bf969d2acc96dd31267a964a73e3a4a61a046c778ab3443598b111eccbf20a682b93f40
kubernetes-server-linux-s390x.tar.gz b2f29641f5756bb77b048cd336997e89ae50236fb32a7b425c348fab1f077534facce6c90ad9650dd2db5b708bff1ddabb478e29fc69f32b59e5ded247665840

Node Binaries

filename sha512 hash
kubernetes-node-linux-amd64.tar.gz 305ee41682bb222e040134e75aefeda6cad1f81f4af761c514bb5d66fe83d42dd993c0a118c178a9e8abd6d2ae3fdb7b70c0509f1134f032c2ef2ef2bc103d81
kubernetes-node-linux-arm64.tar.gz 6bc84fb35f278742734ac0c6265d6f2d654a7d57d65e98d597ba4c438b7ea20033e0431515f120fbcbf2fb6e99d3f50d4b4ecfc88e3705d08fc949b7f42c3776
kubernetes-node-linux-ppc64le.tar.gz 638ad423ddbc52179320fe497f775d50c210745044aca9cea00c674dc1e710e979b7fca564811ccae99b801582e075194b09a00548f789740e0e6c4791309bdc
kubernetes-node-linux-s390x.tar.gz 4874d3e34145c19973aa130c3f2c4eb5b01991142eb9bbf7391378bb6f83179a163659c80b3e45526cf334f7c63868502381afce18205ab92c521f4c911e3179
kubernetes-node-windows-amd64.tar.gz 5d3e9e88577e5be11d56e65d76cec6ab931811f106fd1683551d9b2514ec8edf21f39c6512adc3ce901862f015b28237fc1774b0ccfaf771f106237a2ed599c6

Container Images

All container images are available as manifest lists and support the described architectures. It is also possible to pull a specific architecture directly by adding the "-$ARCH" suffix to the container image name.

name architectures
registry.k8s.io/conformance:v1.27.0-beta.0 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-apiserver:v1.27.0-beta.0 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-controller-manager:v1.27.0-beta.0 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-proxy:v1.27.0-beta.0 amd64, arm64, ppc64le, s390x
registry.k8s.io/kube-scheduler:v1.27.0-beta.0 amd64, arm64, ppc64le, s390x

Changelog since v1.27.0-alpha.3

Urgent Upgrade Notes

(No, really, you MUST read this before you upgrade)

  • The IPv6DualStack feature gate for external cloud providers was removed. (The feature became GA in 1.23 and the gate was removed for all other components several releases ago.) If you were still manually enabling it you must stop now. (#116255, @danwinship) [SIG API Machinery, Cloud Provider and Network]

Changes by Kind

Deprecation

  • The alpha SecurityContextDeny admission plugin is deprecated and now requires enabling the alpha SecurityContextDeny feature gate to use. It will be removed in a future version. (#115879, @mtardy) [SIG Auth]

API Change

  • API: resource.k8s.io/v1alpha1.PodScheduling was renamed to resource.k8s.io/v1alpha2.PodSchedulingContext. (#116556, @pohly) [SIG API Machinery, Apps, Auth, CLI, Node, Scheduling and Testing]

  • APIServerTracing feature gate is now enabled by default. Tracing in the API Server is still disabled by default, and requires a config file to enable. (#116144, @dashpole) [SIG API Machinery and Testing]

  • Added CEL runtime cost calculation into ValidatingAdmissionPolicy, matching the evaluation cost restrictions that already apply to CustomResourceDefinition. If rule evaluation uses more compute than the limit, the API server aborts the evaluation and the admission check that was being performed is aborted; the failurePolicy for the ValidatingAdmissionPolicy determines the outcome. (#115747, @cici37) [SIG API Machinery]

  • Added messageExpression to ValidatingAdmissionPolicy, to set custom failure message via CEL expression. (#116397, @jiahuif) [SIG API Machinery]

  • Added a new IPAddress object kind

    • Added a new ClusterIP allocator. The new allocator removes previous Service CIDR block size limitations for IPv4, and limits IPv6 size to a /64 (#115075, @aojea) [SIG API Machinery, Apps, Auth, CLI, Cluster Lifecycle, Network and Testing]

  • Added a new alpha API: ClusterTrustBundle (certificates.k8s.io/v1alpha1). A ClusterTrustBundle may be used to distribute X.509 trust anchors to workloads within the cluster. (#113218, @ahmedtd) [SIG API Machinery, Auth and Testing]

  • Added authorization check support to the CEL expressions of ValidatingAdmissionPolicy via a authorizer variable with expressions. The new variable provides a builder that allows expressions such authorizer.group('').resource('pods').check('create').allowed(). (#116054, @jpbetz) [SIG API Machinery and Testing]

  • Added matchConditions field to ValidatingAdmissionPolicy, enabled support for CEL based custom match criteria. (#116350, @maxsmythe) [SIG API Machinery and Testing]

  • Added messageExpression field to ValidationRule. (#115969, @DangerOnTheRanger) (#115969, @DangerOnTheRanger) [SIG API Machinery, Architecture, Auth, CLI, Cloud Provider, Instrumentation, Node and Testing]

  • Added the MatchConditions field to ValidatingWebhookConfiguration and MutatingWebhookConfiguration for the v1beta and v1 apis.

    The AdmissionWebhookMatchConditions featuregate is now in Alpha (#116261, @ivelichkovich) [SIG API Machinery and Testing]

  • Added validation to ensure that if service.kubernetes.io/topology-aware-hints and service.kubernetes.io/topology-mode annotations are both set, they are set to the same value.

    • Added deprecation warning if service.kubernetes.io/topology-aware-hints annotation is used. (#116612, @robscott) [SIG Apps, Network and Testing]

  • Adds auditAnnotations to ValidatingAdmissionPolicy, enabling CEL to be used to add audit annotations to request audit events. Adds validationActions to ValidatingAdmissionPolicyBinding, enabling validation failures to be handled by any combination of the warn, audit and deny enforcement actions. (#115973, @jpbetz) [SIG API Machinery and Testing]

  • Adds feature gate NodeLogQuery which provides cluster administrators with a streaming view of logs using kubectl without them having to implement a client side reader or logging into the node. (#96120, @LorbusChris) [SIG API Machinery, Apps, CLI, Node, Testing and Windows]

  • Api: validation of a PodSpec now rejects invalid ResourceClaim and ResourceClaimTemplate names. For a pod, the name generated for the ResourceClaim when using a template also must be valid. (#116576, @pohly) [SIG Apps]

  • Bump default API QPS limits for Kubelet. (#116121, @wojtek-t) [SIG API Machinery and Node]

  • Enable the "StatefulSetStartOrdinal" feature gate in beta (#115260, @pwschuurman) [SIG API Machinery and Apps]

  • Extended the kubelet's PodResources API to include resources allocated in ResourceClaims via DynamicResourceAllocation. Additionally, added a new Get() method to query a specific pod for its resources. (#115847, @moshe010) [SIG Node]

  • Forbid to set matchLabelKeys when labelSelector isn’t set in topologySpreadConstraints (#116535, @denkensk) [SIG API Machinery, Apps and Scheduling]

  • GCE does not support LoadBalancer Services with ports with different protocols (TCP and UDP) (#115966, @aojea) [SIG Apps and Cloud Provider]

  • GRPC probes are now a GA feature. GRPCContainerProbe feature gate was locked to default value and will be removed in v1.29. If you were setting this feature gate explicitly, please remove it now. (#116233, @SergeyKanzhelev) [SIG API Machinery, Apps and Node]

  • Graduate Kubelet Topology Manager to GA. (#116093, @swatisehgal) [SIG API Machinery, Node and Testing]

  • Graduate KubeletTracing to beta, which means that the feature gate is now enabled by default. (#115750, @saschagrunert) [SIG Instrumentation and Node]

  • Graduate the container resource metrics feature on HPA to beta. (#116046, @sanposhiho) [SIG Autoscaling]

  • Introduced a breaking change to the resource.k8s.io API in its AllocationResult struct. This change allows a kubelet plugin for the DynamicResourceAllocation feature to service allocations from multiple resource driver controllers. (#116332, @klueska) [SIG API Machinery, Apps, CLI, Node, Scheduling and Testing]

  • Introduces new alpha functionality to the reflector, allowing user to enable API streaming.

    To activate this feature, users can set the ENABLE_CLIENT_GO_WATCH_LIST_ALPHA environmental variable. It is important to note that the server must support streaming for this feature to function properly. If streaming is not supported by the server, the reflector will revert to the previous method of obtaining data through LIST/WATCH semantics. (#110772, @p0lyn0mial) [SIG API Machinery]

  • Kubelet: change MemoryThrottlingFactor default value to 0.9 and formulas to calculate memory.high (#115371, @pacoxu) [SIG API Machinery, Apps and Node]

  • Migrated the DaemonSet controller (within `kube-controller-manager) to use contextual logging (#113622, @249043822) [SIG API Machinery, Apps, Instrumentation and Testing]

  • New service.kubernetes.io/topology-mode annotation has been introduced as a replacement for the service.kubernetes.io/topology-aware-hints annotation.

    • service.kubernetes.io/topology-aware-hints annotation has been deprecated.
    • kube-proxy now accepts any value that is not "disabled" for these annotations, enabling custom implementation-specific and/or future built-in heuristics to be used. (#116522, @robscott) [SIG Apps, Network and Testing]

  • NodeResourceFit and NodeResourcesBalancedAllocation implement the PreScore extension point for a more performant calculation. (#115655, @tangwz) [SIG Scheduling]

  • Pods owned by a Job will now use the labels batch.kubernetes.io/job-name and batch.kubernetes.io/controller-uid. The legacy labels job-name and controller-uid are still added for compatibility. (#114930, @kannon92) [SIG Apps]

  • Promote CronJobTimeZone feature to GA (#115904, @soltysh) [SIG API Machinery and Apps]

  • Promoted SelfSubjectReview to Beta (#116274, @nabokihms) [SIG API Machinery, Auth, CLI and Testing]

  • Relax API validation to allow pod node selector to be mutable for gated pods (additions only, no deletions or mutations). (#116161, @danielvegamyhre) [SIG Apps, Scheduling and Testing]

  • Remove deprecated --enable-taint-manager and --pod-eviction-timeout CLI flags (#115840, @atosatto) [SIG API Machinery, Apps, Node and Testing]

  • Resource.k8s.io/v1alpha1 was replaced with resource.k8s.io/v1alpha2. Before upgrading a cluster, all objects in resource.k8s.io/v1alpha1 (ResourceClaim, ResourceClaimTemplate, ResourceClass, PodScheduling) must be deleted. The changes will be internal, so YAML files which create pods and resource claims don't need changes except for the newer apiVersion. (#116299, @pohly) [SIG API Machinery, Apps, CLI, Node, Scheduling and Testing]

  • SELinuxMountReadWriteOncePod graduated to Beta. (#116425, @jsafrane) [SIG Storage and Testing]

  • StatefulSetAutoDeletePVC feature gate promoted to beta. (#116501, @mattcary) [SIG Apps, Auth and Testing]

  • The API server now re-uses data encryption keys while the kms v2 plugin's key ID is stable. Data encryption keys are still randomly generated on server start but an atomic counter is used to prevent nonce collisions. (#116155, @enj) [SIG API Machinery, Auth and Testing]

  • The API server's encryption at rest configuration now allows the use of wildcards in the list of resources. For example, '.' can be used to encrypt all resources, including all current and future custom resources. (#115149, @nilekhc) [SIG API Machinery, Auth and Testing]

  • Update KMSv2 to beta (#115123, @aramase) [SIG API Machinery, Auth and Testing]

  • Updated: Redefine AppProtocol field description and add new standard values (#115433, @LiorLieberman) [SIG API Machinery, Apps and Network]

  • ValidatingAdmissionPolicy now provides a status field that contains results of type checking the validation expression. The type checking is fully informational, and the behavior of the policy is unchanged. (#115668, @jiahuif) [SIG API Machinery, Auth, Cloud Provider and Testing]

  • We have removed support for the v1alpha1 kubeletplugin API of DynamicResourceManagement. All plugins must update to v1alpha2 in order to function properly going forward. (#116558, @klueska) [SIG API Machinery, Apps, CLI, Node, Scheduling and Testing]

Feature

  • Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

    ([#113428](kubernetes#113428), [@mengjiao-liu](https://github.com/mengjiao-liu)) [SIG API Machinery, Apps, Instrumentation and Testing]

  • Add e2e test to node expand volume with secret (#115451, @zhucan) [SIG Storage and Testing]

  • Added NewVolumeManagerReconstruction feature gate and enable it by default to enable updated discovery of mounted volumes during kubelet startup. Please watch for kubelet getting stuck at startup and / or not unmounting volumes from deleted Pods and report any issues in this area. (#115268, @jsafrane) [SIG Node and Storage]

  • Added metrics for volume reconstruction during kubelet startup. (#115965, @jsafrane) [SIG Node and Storage]

  • Added the ability to host webhooks in the cloud controller manager. (#108838, @nckturner) [SIG API Machinery, Cloud Provider and Testing]

  • Adding e2e tests for kubectl --subresource for beta graduation (#116590, @MadhavJivrajani) [SIG CLI and Testing]

  • Adds --output plaintext-openapiv2 argument to kubectl explain to use old openapiv2 explain implementation. (#115480, @alexzielenski) [SIG Architecture, Auth, CLI, Cloud Provider and Node]

  • By enabling the UserNamespacesStatelessPodsSupport feature gate in kubelet, you can now run a stateless pod in a separate user namespace (#116377, @giuseppe) [SIG Apps, Node and Storage]

  • By enabling the alpha CloudNodeIPs feature gate in kubelet and the cloud provider, you can now specify a dual-stack --node-ip value (when using an external cloud provider that supports that functionality). (#116305, @danwinship) [SIG API Machinery, Cloud Provider, Network and Node]

  • Change kubectl --subresource flag to beta (#116595, @MadhavJivrajani) [SIG CLI]

  • Changed metrics for aggregated discovery to publish new time series (alpha). (#115630, @Jefftree) [SIG API Machinery and Testing]

  • Graduate CRI Events driven Pod LifeCycle Event Generator (Evented PLEG) to Beta (#115967, @harche) [SIG Node]

  • Graduated matchLabelKeys in podTopologySpread to Beta (#116291, @denkensk) [SIG Scheduling]

  • Graduates the CSINodeExpandSecret feature to Beta. This feature facilitates passing secrets to CSI driver as part of Node Expansion CSI operation. (#115621, @humblec) [SIG Storage]

  • HPA controller exposes the following metrics from the kube-controller-manager.

    • metric_computation_duration_seconds: Number of metric computations.
    • metric_computation_total: The time(seconds) that the HPA controller takes to calculate one metric. (#116326, @sanposhiho) [SIG Apps, Autoscaling and Instrumentation]

  • HPA controller starts to expose metrics from the kube-controller-manager.

    • reconciliations_total: Number of reconciliation of HPA controller.
    • reconciliation_duration_seconds: The time(seconds) that the HPA controller takes to reconcile once. (#116010, @sanposhiho) [SIG Apps, Autoscaling and Instrumentation]

  • Kube-scheduler: Optimized implementation of null labelSelector in topology spreading. (#116607, @alculquicondor) [SIG Scheduling]

  • Kubelet allows pods to use the net.ipv4.ip_local_reserved_ports sysctl by default and the minimal kernel version is 3.16; Pod Security admission allows this sysctl in v1.27+ versions of the baseline and restricted policies. (#115374, @pacoxu) [SIG Auth, Network and Node]

  • Kubernetes is now built with go 1.20.2 (#116404, @cpanato) [SIG Release and Testing]

  • Locks CSIMigrationvSphere feature gate. (#116610, @xing-yang) [SIG Storage]

  • Make apiextensions-apiserver binary linking static (also affects the deb and rpm packages). (#114226, @saschagrunert) [SIG API Machinery and Release]

  • Make kube-aggregator binary linking static (also affects the deb and rpm packages). (#114227, @saschagrunert) [SIG API Machinery and Release]

  • Migrated controller helper functions to use contextual logging. (#115049, @fatsheep9146) [SIG Apps]

  • Migrated the ClusterRole aggregation controller (within kube-controller-manager) to use contextual logging. (#113910, @mengjiao-liu) [SIG API Machinery, Apps and Instrumentation]

  • Migrated the Deployment controller (within `kube-controller-manager) to use contextual logging (#113525, @249043822) [SIG API Machinery, Apps, Instrumentation and Testing]

  • Migrated the StatefulSet controller (within `kube-controller-manager) to use contextual logging (#113840, @249043822) [SIG API Machinery, Apps, Instrumentation and Testing]

  • Migrated the bootstrap signer controller and the token cleaner controller (within kube-controller-manager) to use contextual logging. (#113464, @mengjiao-liu) [SIG API Machinery, Apps and Instrumentation]

  • Migrated the defaultbinder scheduler plugin to use contextual logging. (#116571, @mengjiao-liu) [SIG Instrumentation and Scheduling]

  • Migrated the main kube-controller-manager binary to use contextual logging. (#116529, @pohly) [SIG API Machinery, Apps, Auth and Node]

  • Migrated the replicaset controller (within kube-controller-manager) to use contextual logging. (#114871, @Namanl2001) [SIG API Machinery, Apps, Instrumentation and Testing]

  • Migrated the service-account controller (within kube-controller-manager) to use contextual logging. (#114918, @Namanl2001) [SIG API Machinery, Apps, Auth, Instrumentation and Testing]

  • Migrated the volume attach/detach controller (within kube-controller-manager) to use contextual logging. Migrated the PersistentVolumeClaim protection controller (within kube-controller-manager) to use contextual logging. Migrated the PersistentVolume protection controller (within kube-controller-manager) to use contextual logging. (#113584, @yangjunmyfm192085) [SIG API Machinery, Apps, Instrumentation, Node, Scheduling, Storage and Testing]

  • Migrated the “TTL after finished” controller (within kube-controller-manager) to use contextual logging. (#113916, @songxiao-wang87) [SIG API Machinery, Apps, Instrumentation and Testing]

  • New "plugin_evaluation_total" is added to the scheduler. This metric counts how many times the specific plugin affects the scheduling result. The metric doesn't get incremented when the plugin has nothing to do with an incoming Pod. (#115082, @sanposhiho) [SIG Instrumentation and Scheduling]

  • Promote whoami kubectl command. (#116510, @nabokihms) [SIG Auth and CLI]

  • Promote aggregated discovery endpoint to beta and it will be enabled by default (#116108, @Jefftree) [SIG API Machinery]

  • Promoted OpenAPIV3 to GA (#116235, @Jefftree) [SIG API Machinery]

  • StorageVersionGC (within kube-controller-manager) to use contextual logging. (#113986, @songxiao-wang87) [SIG API Machinery, Apps and Testing]

  • Switched kubectl explain to use OpenAPIV3 information published by the server. OpenAPIV2 backend can still be used with the --output plaintext-openapiv2 argument (#116390, @alexzielenski) [SIG API Machinery, CLI and Testing]

  • The job controller back-off logic is now decoupled from workqueue. In case of parallelism > 1, if there are multiple new failures in a reconciliation cycle, all the failures are taken into account to compute the back-off. Previously, the back-off kicked in for all types of failures; with this change, only pod failures are taken into account. If the back-off limits exceeds, the job is marked as failed immediately; before this change, the job is marked as failed in the next back-off. (#114768, @sathyanarays) [SIG Apps and Testing]

  • The scheduler's metric "plugin_execution_duration_seconds" now records PreEnqueue plugins execution seconds. (#116201, @sanposhiho) [SIG Scheduling]

  • Unlocked the CSIMigrationvSphere feature gate. The change allow users to continue using the in-tree vSphere driver,pending a vSphere CSI driver release that has with GA support for Windows, XFS, and raw block access. (#116342, @msau42) [SIG Storage]

  • Update kube-apiserver SLO/SLI latency metrics to exclude priority & fairness queue wait times (#116420, @andrewsykim) [SIG API Machinery]

  • Updated distroless iptables to use released image registry.k8s.io/build-image/distroless-iptables:v0.2.2

    • Updated setcap to use released image registry.k8s.io/build-image/setcap:bullseye-v1.4.2 (#116509, @cpanato) [SIG Testing]

  • Upgrades functionality of kubectl kustomize as described at https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize%2Fv5.0.0 and https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize%2Fv5.0.1.

    This is a new major release of kustomize, so there are a few backwards-incompatible changes, most of which are rare use cases, bug fixes with side effects, or things that have been deprecated for multiple releases already:

    • kubernetes-sigs/kustomize#4911: Drop support for a very old, legacy style of patches. patches used to be allowed to be used as an alias for patchesStrategicMerge in kustomize v3. You now have to use patchesStrategicMerge explicitly, or update to the new syntax supported by patches. See examples in the PR description of kubernetes-sigs/kustomize#4911.
    • kubernetes-sigs/kustomize#4731: Remove a potential build-time side-effect in ConfigMapGenerator and SecretGenerator, which loaded values from the local environment under some circumstances, breaking kustomize build's side-effect-free promise. While this behavior was never intended, we deprecated it and are announcing it as a breaking change since it existed for a long time. See also the Eschewed Features documentation.
    • kubernetes-sigs/kustomize#4985: If you previously included .git in an AWS or Azure URL, we will no longer automatically remove that suffix. You may need to add an extra / to replace the .git for the URL to properly resolve.
    • kubernetes-sigs/kustomize#4954: Drop support for using gh: as a host (e.g. gh:kubernetes-sigs/kustomize). We were unable to find any usage of or basis for this and believe it may have been targeting a custom gitconfig shorthand syntax. (#116598, @natasha41575) [SIG CLI]

  • When an unsupported PodDisruptionBudget configuration is found, an event and log will be emitted to inform users of the misconfiguration. (#115861, @JayKayy) [SIG Apps]

  • [alpha: kubectl apply --prune --applyset] Enables certain custom resources (CRs) to be used as ApplySet parent objects. To enable this for a given CR, apply the label applyset.k8s.io/is-parent-type: true to the CustomResourceDefinition (CRD) that defines it . (#116353, @KnVerey) [SIG CLI]

Documentation

  • The change affects the following CLI command:

    kubectl create rolebinding -h (#107124, @ptux) [SIG CLI]

Failing Test

  • Setting the Kubelet config option --resolv-conf=Host on Windows will now result in Kubelet applying the Pod DNS Policies as intended. (#110566, @claudiubelu) [SIG Network, Node, Testing and Windows]

Bug or Regression

  • Expands the partial fix for kubernetes#111539 which was already started in kubernetes#109706 Specifically, we will now reduce the amount of syncs for ETP=local services even further in the CCM and avoid re-configuring LBs to an even greater extent. (#111658, @alexanderConstantinescu) [SIG Cloud Provider and Network]

  • Fix the problem Pod terminating stuck because of trying to umount not actual mounted dir. (#115769, @mochizuki875) [SIG Node and Storage]

  • Fixed a rare race condition in kube-apiserver that could lead to missing events when a watch API request was created at the same time kube-apiserver was re-initializing its internal watch. (#116172, @wojtek-t) [SIG API Machinery]

  • Fixed data race in kube-scheduler when preemption races with a Pod update. (#116395, @alculquicondor) [SIG Scheduling]

  • Fixed incorrect watch events when a watch is initialized simultanously with a reinitializing watchcache. (#116436, @wojtek-t) [SIG API Machinery]

  • Fixed performance regression in scheduler caused by frequent metric lookup on critical code path. (#116428, @mborsz) [SIG Scheduling]

  • Fixes #115825. Kube-proxy will now include the healthz state in its response to the LB HC as to avoid indicating to the LB that it should use the node in question when Kube-proxy is not healthy. (#111661, @alexanderConstantinescu) [SIG Network]

  • Force deleted pods may fail to terminate until the kubelet is restarted when the container runtime returns an error during termination. We have strengthened testing for runtime failures and now perform a more rigorous reconciliation to ensure static pods (especially those that use fixed UIDs) are restarted. As a side effect of these changes static pods will be restarted with lower latency than before (2s vs 4s, on average) and rapid updates to pod configuration should take effect sooner.

    A new metric kubelet_known_pods has been added at ALPHA stability to report the number of pods a Kubelet is tracking in a number of internal states. Operators may use the metrics to track an excess of pods in the orphaned state that may not be completing. (#113145, @smarterclayton) [SIG API Machinery, Auth, Cloud Provider, Node and Testing]

  • From now on, the HPA controller will return an error for the container resource metrics when the feature gate "HPAContainerMetrics" is disabled. As a result, HPA with a container resource metric performs no scale-down and performs only scale-up based on other metrics. (#116043, @sanposhiho) [SIG API Machinery, Apps and Autoscaling]

  • Ingress with ingressClass annotation and IngressClassName both set can be created now. (#115447, @kidddddddddddddddddddddd) [SIG Network]

  • Kube-controller-manager: fix a bug that the "kubeconfig" field of "kubecontrollermanager.config.k8s.io" configuration is not populated correctly (#116219, @SataQiu) [SIG API Machinery and Cloud Provider]

  • Kubelet: fix recording issue when pulling image did finish (#114904, @TommyStarK) [SIG Node]

  • PVCs will automatically be recreated if they are missing for a pending Pod. (#113270, @rrangith) [SIG Apps and Testing]

  • PersistentVolume API objects which set NodeAffinities using beta Kubernetes labels for OS, architecture, zone, region, and instance type may now be modified to use the stable Kubernetes labels. (#115391, @haoruan) [SIG Apps and Storage]

  • Potentially breaking change - Updating the polling interval for Windows stats collection from 1 second to 10 seconds (#116546, @marosset) [SIG Node and Windows]

  • Update the Event series starting count when emitting isomorphic events from 1 to 2. (#112334, @dgrisonnet) [SIG API Machinery and Testing]

  • When GCing pods, kube-controller-manager will delete Evicted pods first. (#116167, @borgerli) [SIG Apps]

  • Windows CPU usage node stats are now correctly calculated for nodes with multiple Processor Groups. (#110864, @claudiubelu) [SIG Node, Testing and Windows]

  • In-Place Update of Pod Resources (alpha feature) - resizing of pod may race with other pod updates. (#116826 [SIG Node])

Other (Cleanup or Flake)

  • Added basic Denial Of Service prevention for the the node-local kubelet podresource API (#116459, @ffromani) [SIG Node and Testing]

  • Introduce new metrics removing the redundant subsystem in kube-apiserver pod logs metrics and deprecate the original ones:

    • kube_apiserver_pod_logs_pods_logs_backend_tls_failure_total becomes kube_apiserver_pod_logs_backend_tls_failure_total
    • kube_apiserver_pod_logs_pods_logs_insecure_backend_total becomes kube_apiserver_pod_logs_insecure_backend_total (#114497, @dgrisonnet) [SIG API Machinery]

  • Kubelet: remove deprecated flag --container-runtime (#114017, @calvin0327) [SIG Cloud Provider and Node]

  • Kubelet: the deprecated --master-service-namespace flag is removed in v1.27 (#116015, @SataQiu) [SIG Node]

  • Linux/arm will not ship in Kubernetes 1.27 as we are running into issues with building artifacts using golang 1.20.2 (please see issue #116492) (#115742, @dims) [SIG Architecture, Release and Testing]

  • Migrate pkg/controller/nodeipam/ipam/cloud_cidr_allocator.go, pkg/controller/nodeipam/ipam/multi_cidr_range_allocator.go pkg/controller/nodeipam/ipam/range_allocator.go pkg/controller/nodelifecycle/node_lifecycle_controller.go to structured logging (#112670, @yangjunmyfm192085) [SIG API Machinery, Apps, Architecture, Cloud Provider, Instrumentation, Network and Testing]

  • Migrated the Kubernetes object garbage collector (within kube-controller-manager) to use contextual logging. (#113471, @ncdc) [SIG API Machinery, Apps and Testing]

  • Migrated the ttlafterfinished controller (within kube-controller-manager) to use contextual logging. (#115332, @obaranov1) [SIG Apps]

  • Migrated the “sample-controller” controller to use contextual logging. (#113879, @pchan) [SIG API Machinery and Instrumentation]

  • Remove Azure disk in-tree storage plugin (#116301, @andyzhangx) [SIG API Machinery, Cloud Provider, Node, Scheduling, Storage and Testing]

  • Remove the following deprecated metrics:

    • node_collector_evictions_number replaced by node_collector_evictions_total
    • scheduler_e2e_scheduling_duration_seconds replaced by scheduler_scheduling_attempt_duration_seconds (#115209, @dgrisonnet) [SIG Apps and Scheduling]

  • Removed AWS kubelet credential provider. Please use the external kubelet credential provider binary named ecr-credential-provider instead. (#116329, @dims) [SIG Node, Storage and Testing]

  • Storage.k8s.io/v1beta1 API version of CSIStorageCapacity will no longer be served (#116523, @pacoxu) [SIG API Machinery]

  • The wait.Poll* and wait.ExponentialBackoff* functions have been deprecated and will be removed in a future release. Callers should switch to using wait.PollUntilContextCancel, wait.PollUntilContextTimeout, or wait.ExponentialBackoffWithContext as appropriate.

    PollWithContext(Cancel|Deadline) will no longer return ErrWaitTimeout - use the Interrupted(error) bool helper to replace checks for err == ErrWaitTimeout, or compare specifically to context errors as needed. A future release will make the ErrWaitTimeout error private and callers must use Interrupted() instead. If you are returning ErrWaitTimeout from your own methods, switch to creating a location specific cause err and pass it to the new method wait.ErrorInterrupted(cause) error which will ensure Interrupted() returns true for your loop.

    The wait.NewExponentialBackoffManager and wait.NewJitteringBackoffManager functions have been marked as deprecated. Callers should switch to using the Backoff{...}.DelayWithReset(clock, resetInterval) method and must set the Steps field when using Factor. As a short term change, callers may use the Timer() method on the BackoffManager until the backoff managers are deprecated and removed. Please see the godoc of the deprecated functions for examples of how to replace usage of this function. (#107826, @smarterclayton) [SIG API Machinery, Auth, Cloud Provider, Storage and Testing]

  • Upgrade coredns to v1.10.1 (#115603, @pacoxu) [SIG Cloud Provider and Cluster Lifecycle]

  • [KCCM - service controller]: enable connection draining for terminating pods upon node downscale by the cluster autoscaler. This is done by not reacting to the taint used by the cluster autoscaler to indicate that the node is going away soon, thus keeping the node referenced by the load balancer until the VM has been completely deleted. (#115204, @alexanderConstantinescu) [SIG API Machinery, Cloud Provider, Instrumentation and Network]

Dependencies

Added

  • sigs.k8s.io/kustomize/kustomize/v5: v5.0.1

Changed

  • github.com/aws/aws-sdk-go: v1.44.147 → v1.35.24
  • github.com/coreos/go-systemd/v22: v22.3.2 → v22.4.0
  • github.com/go-errors/errors: v1.0.1 → v1.4.2
  • github.com/golang/protobuf: v1.5.2 → v1.5.3
  • github.com/onsi/ginkgo/v2: v2.7.0 → v2.9.1
  • github.com/onsi/gomega: v1.26.0 → v1.27.4
  • golang.org/x/mod: v0.7.0 → v0.9.0
  • golang.org/x/net: v0.7.0 → v0.8.0
  • golang.org/x/sys: v0.5.0 → v0.6.0
  • golang.org/x/term: v0.5.0 → v0.6.0
  • golang.org/x/text: v0.7.0 → v0.8.0
  • golang.org/x/tools: v0.4.0 → v0.7.0
  • k8s.io/kube-openapi: 1cb3ae2 → 15aac26
  • sigs.k8s.io/json: f223a00 → bc3834c
  • sigs.k8s.io/kustomize/api: v0.12.1 → v0.13.2
  • sigs.k8s.io/kustomize/cmd/config: v0.10.9 → v0.11.1
  • sigs.k8s.io/kustomize/kyaml: v0.13.9 → v0.14.1

Removed

  • github.com/PuerkitoBio/purell: v1.1.1
  • github.com/PuerkitoBio/urlesc: de5bf2a
  • github.com/mattn/go-runewidth: v0.0.7
  • github.com/niemeyer/pretty: a10e7ca
  • github.com/olekukonko/tablewriter: v0.0.4
  • sigs.k8s.io/kustomize/kustomize/v4: v4.5.7

v1.27.0-alpha.3

Downloads for v1.27.0-alpha.3

Source Code

filename sha512 hash
kubernetes.tar.gz 86bdc8dfcb5ce47ef6f57917a9deed3dbd800669411e494f565bcb0fc6caf2982026d995205cac614e608be2cf240804668fc9f90579bef0872ee5e5ef33f4d8
kubernetes-src.tar.gz c8395e5693aa148b0b326477b78d1067ff4368f34c755c003938fd88a777ae2303b102d2da240e762cf40cf171cc7a70746a4ddee4c6a35a16bd0eb9265877af

Client Binaries

filename sha512 hash
kubernetes-client-darwin-amd64.tar.gz 677ee66b49d137335a16ec3acc7fef33bcf1cee094edc0370487ac8060d728ed009c92b3438dbeb675c113320991ea9bf703579dbaf929883a82874222534760
kubernetes-client-darwin-arm64.tar.gz d1dbdc0d3f9ad5772aa33276a097f0848f445072c4a3cad1902c3fa015952aa0b78656d144a792beccbfe1bf7b78c0257b4507edcda00fb960fd2249b2cab5fd
kubernetes-client-linux-386.tar.gz 8f85dfe2f157921b6b3250c744549c2ed4ccd491279b16eb0eb45402ad8f72e73a368eeaa46a4cc309fc5079c333b6f810d5904f87bb282b07b1d0abb0e22586
kubernetes-client-linux-amd64.tar.gz a058c582c63da65fd9a4b95ea80e67367d0a98e5181c8733f6fe1023c356a85c87594c1ade300eb00f3ef3ef6a32f13c44eb8394f862f512217b4d437b6dbb63
kubernetes-client-linux-arm.tar.gz 403e8083abc8ee509e636d0b58a013b35c7b36f10fb5e75cccbefbd6bc9a2760dfbd1ad40845b7dc0f5d78d6c93d4a6527e119a4e5f74f5dfa71281bda6a64bb
kubernetes-client-linux-arm64.tar.gz a4defcf0bb8684cfe49352016abf1c720c36cc2cec8a599f987b164669ce67f581b23134a4194f4a2fb58ac489fd5b7c99ad5539efffa5a7ac5aaa2a31c79f65
kubernetes-client-linux-ppc64le.tar.gz fdf33f56239537311b1839f22de6db9a60f515bdcfadd5e470f5c459ab1a1d1fcdd67e27abdd4d6fcc5b356a8188794e7605d9633dd9364a4cccc01bce027357
kubernetes-client-linux-s390x.tar.gz 8475beee121129cb7bf68763ba2cba816f9ad0daec055b564074d9364674b254dc5b368f5acf648ae32b00f0f925b7d8c0403c9ca15754fabf635c272e26a64a
kubernetes-client-windows-386.tar.gz 7a03a2918722fb94e4a2cee827f6abf13184479274e9c246573cc5515bd9eb4cae46c62988bf9072ae0572086d4689986b78ee5349fcefa60a62e20f17c28d45
kubernetes-client-windows-amd64.tar.gz 52e8d2da2ec5e3f51f79a2f946c49f57ab0c22321d721914a91656100a721f7278baf419d6aa629c9e8247be60177cc8cb077499b692159a6496506b56e8e17a
kubernetes-client-windows-arm64.tar.gz efa2d76d57b6e3d9eb897a6e8d9812d67d4d57b9368754e22efeaa4a031d34e1ba4e8db0272b5f2ae9ee6d5615ab078201bc35fa4762f1e32c6b67c8fb7b6c8d

Server Binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz a1602f5be2abcbc67c763533c7352ac067fe9f2e778b3b2eeb72ee39c885e299edb53f01889420199111cd53465b463290097b8a4f8879c91b912ffbf1aa7dde
kubernetes-server-linux-arm.tar.gz e129be174e855f48a5de6cf07731c9897edb360c9df1f842915323a8abf2bf704be1c275df04c93a878edbb51ea3316eeb37779ba3ebf3dc19887c97c4b5bc23
kubernetes-server-linux-arm64.tar.gz f890256c2e5b4096ee944c095df2ff5fd38056ed09deabcbe7501f6b9b5665267e775d1db081f94735dba4e9423f0bebca4b275a2b38389119513bbe2d2b53c2
kubernetes-server-linux-ppc64le.tar.gz 878ebfa012b184c93505f62e30ada071420bd199ef22d4690c28dff6cbc48de6048978d41d7a6f518d26564261c9da4b7fefce8f0da1e5d274ac871696bb7b93
kubernetes-server-linux-s390x.tar.gz 217bcec3012f3aefa612178e9842779825cf8d50dc7e1d6a84239206f70976d939c1089d177851f3657a1f7f763ebe6a31b3ff3d99c1120105036cf37650900c

Node Binaries

filename sha512 hash
kubernetes-node-linux-amd64.tar.gz c15b9a152ceed976aff0b64c2d601985db4e58785b1a756fac6e4c83be27c70e96a277692448d75fccc69b82a5d2a872fa2ab3b5fe4b4145eacbab3d0fa03086
kubernetes-node-linux-arm.tar.gz 6c0f7d3b97532aacd7aaba931bf4fb858cf49559bf51ea0e154efc4ee26de8d01f7f39f017462e136afe5faaa8d86ee49e954c3a9051751ce8dfa8312cd95f06
kubernetes-node-linux-arm64.tar.gz fb2934282018539abb5ba0fde67225d5131d08c5798ed54dc93081739a803210c9aaf73412c56af7aa9999b497aac073be42ec3a7677255e5d4e39783330bd86
kubernetes-node-linux-ppc64le.tar.gz 84078c93f7661c5aedf276964cc5866e1eba9b8cbc9e1c40b9e5bfe76ad115a632f4f591b177dc5fa926cb65a66c6847fb243b82ad1f880796d1d7cfe061b498
kubernetes-node-linux-s390x.tar.gz dff5a35a352e5a17abad8eaa51b9447ca0a8a52df4b22e325ac7acf70efe3d0fe9bef958e8bb5a1e90d43c4586551d456e2dcf42cd01074605c07d69a52fc5b7
kubernetes-node-windows-amd64.tar.gz a2da87f8a7bd25d6efc8c3b7af79e268809e743ce36c187cdc0af3ff423d54f95a5bd03b50494aea8b0c394ca716e5c4225e7e2d49f40f08db6cd302d894eb3b

Container Images

All container images are available as manifest lists and support the described architectures. It is also possible to pull a specific architecture directly by adding the "-$ARCH" suffix to the container image name.

name architectures
registry.k8s.io/conformance:v1.27.0-alpha.3 amd64, arm, arm64, ppc64le, s390x
registry.k8s.io/kube-apiserver:v1.27.0-alpha.3 amd64, arm, arm64, ppc64le, s390x
registry.k8s.io/kube-controller-manager:v1.27.0-alpha.3 amd64, arm, arm64, ppc64le, s390x
registry.k8s.io/kube-proxy:v1.27.0-alpha.3 amd64, arm, arm64, ppc64le, s390x
registry.k8s.io/kube-scheduler:v1.27.0-alpha.3 amd64, arm, arm64, ppc64le, s390x

Changelog since v1.27.0-alpha.2

Changes by Kind

Deprecation

  • Added a warning response when handling requests that set the deprecated spec.externalID field for a Node. (#115944, @SataQiu) [SIG Node]

API Change

  • Graduated seccomp profile defaulting to GA.

    Set the kubelet --seccomp-default flag or seccompDefault kubelet configuration field to true to make pods on that node default to using the RuntimeDefault seccomp profile.

    Enabling seccomp for your workload can have a negative performance impact depending on the kernel and container runtime version in use.

    Guidance for identifying and mitigating those issues is outlined in the Kubernetes seccomp tutorial. (#115719, @saschagrunert) [SIG API Machinery, Node, Storage and Testing]

  • Implements API for streaming for the watch-cache

    When sendInitialEvents ListOption is set together with watch=true, it begins the watch stream with synthetic init events followed by a synthetic "Bookmark" after which the server continues streaming events. (#110960, @p0lyn0mial) [SIG API Machinery]

  • Introduce API for streaming.

    Add SendInitialEvents field to the ListOptions. When the new option is set together with watch=true, it begins the watch stream with synthetic init events followed by a synthetic "Bookmark" after which the server continues streaming events. (#115402, @p0lyn0mial) [SIG API Machinery]

  • Kubelet: a "maxParallelImagePulls" field can now be specified in the kubelet configuration file to control how many image pulls the kubelet can perform in parallel. (#115220, @ruiwen-zhao) [SIG API Machinery, Node and Scalability]

  • PodSchedulingReadiness is graduated to beta. (#115815, @Huang-Wei) [SIG API Machinery, Apps, Scheduling and Testing]

  • In-place resize feature for Kubernetes Pods

    • Changed the Pod API so that the resources defined for containers are mutable for cpu and memory resource types.
    • Added resizePolicy for containers in a pod to allow users control over how their containers are resized.
    • Added allocatedResources field to container status in pod status that describes the node resources allocated to a pod.
    • Added resources field to container status that reports actual resources applied to running containers.
    • Added resize field to pod status that describes the state of a requested pod resize.

    For details, see KEPs below. (#102884, @vinaykul) [SIG API Machinery, Apps, Instrumentation, Node, Scheduling and Testing]

  • The PodDisruptionBudget spec.unhealthyPodEvictionPolicy field has graduated to beta and is enabled by default. On servers with the feature enabled, this field may be set to AlwaysAllow to always allow unhealthy pods covered by the PodDisruptionBudget to be evicted. (#115363, @ravisantoshgudimetla) [SIG Apps, Auth and Node]

  • The DownwardAPIHugePages kubelet feature graduated to stable / GA. (#115721, @saschagrunert) [SIG Apps and Node]

  • Volumes: resource.claims gets cleared for PVC specs during create or update of a pod spec with inline PVC template or of a PVC because it has no effect. (#115928, @pohly) [SIG API Machinery, Apps and Storage]

Feature

  • API validation relaxed allowing Indexed Jobs to be scaled up/down by changing parallelism and completions in tandem, such that parallelism == completions. (#115236, @danielvegamyhre) [SIG Apps and Testing]
  • Add kubelet Topology Manager metric to measure topology manager admission latency. (#115590, @swatisehgal) [SIG Node and Testing]
  • Added "netadmin" debugging profiles for kubectl debug. (#115712, @wedaly) [SIG CLI]
  • Added apiserver_envelope_encryption_invalid_key_id_from_status_total to measure number of times an invalid keyID is returned by the Status RPC call. (#115846, @ritazh) [SIG API Machinery and Auth]
  • Apiserver_storage_transformation_operations_total metric has been updated to include labels transformer_prefix and status. (#115394, @ritazh) [SIG API Machinery, Auth, Instrumentation and Testing]
  • Client-go: metadatainformer and dynamicinformer SharedInformerFactorys now supports waiting for goroutines during shutdown (#114434, @howardjohn) [SIG API Machinery]
  • Graduate the ReadWriteOncePod feature gate to beta (#114494, @chrishenzie) [SIG Scheduling, Storage and Testing]
  • Kubeadm: show a warning message when detecting that the sandbox image of the container runtime is inconsistent with that used by kubeadm (#115610, @SataQiu) [SIG Cluster Lifecycle]
  • Kubernetes is now built with go 1.20.1 (#115828, @cpanato) [SIG Release and Testing]
  • Performance improvements in klog (#115277, @pohly) [SIG API Machinery, Architecture, Auth, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation, Node, Storage and Testing]
  • Pod template schedulingGates are now mutable for Jobs that are suspended and have never been started (#115940, @ahg-g) [SIG Apps]
  • Pods which have an invalid negative spec.terminationGracePeriodSeconds value will be treated as having terminationGracePeriodSeconds of 1 (#115606, @wzshiming) [SIG Apps, Node and Testing]
  • The Pod API field .spec.schedulingGates[*].name now requires qualified names (like example.com/mygate), matching validation for names of .spec.readinessGates[*].name. Any uses of the alpha scheduling gate feature prior to 1.27 that do not match that validation must be renamed or deleted before upgrading to 1.27. (#115821, @lianghao208) [SIG Apps and Scheduling]
  • The JobMutableNodeSchedulingDirectives feature gate has graduated to GA. (#116116, @ahg-g) [SIG Apps, Scheduling and Testing]
  • Two changes to the /debug/api_priority_and_fairness/dump_priority_levels endpoint of API Priority and Fairness: add total number of dispatched, timed-out, rejected and cancelled requests; output now sorted by PriorityLevelName. (#112393, @borgerli) [SIG API Machinery]
  • Updated distroless iptables to use released image registry.k8s.io/distroless-iptables:v0.2.1 (#115905, @cpanato) [SIG Testing]
  • [E2E] Pods spawned by E2E tests can now pull images from the private registry using the new --e2e-docker-config-file flag (#114625, @Divya063) [SIG Node and Testing]

Documentation

  • Document the reason field in CRI API to ensure it equals OOMKilled for the containers terminated by OOM killer (#112977, @mimowo) [SIG Node]

Failing Test

  • Fixed panic in vSphere e2e tests. (#115863, @jsafrane) [SIG Storage and Testing]

Bug or Regression

  • Cacher: If RV is unset, the watch is now served from the underlying storage as documented. (#115096, @MadhavJivrajani) [SIG API Machinery]
  • Client-go: fix the wait time for trying to acquire the leader lease (#114872, @Iceber) [SIG API Machinery]
  • File content check for IPV4 is not enabled by default, and the check of IPV4 or IPV6 is done for kubeadm init or kubeadm join only in case the user intends to create a cluster to support that kind of IP address family (#115420, @chendave) [SIG Cluster Lifecycle and Network]
  • Fix log line in scheduler that inaccurately implies that volume binding has finalized (#116018, @TommyStarK) [SIG Scheduling and Storage]
  • Fix missing delete events on informer re-lists to ensure all delete events are correctly emitted and using the latest known object state, so that all event handlers and stores always reflect the actual apiserver state as best as possible (#115620, @odinuge) [SIG API Machinery]
  • Fixed a bug where Kubernetes would apply a default StorageClass to a PersistentVolumeClaim, even when the deprecated annotation volume.beta.kubernetes.io/storage-class was set. (#116089, @cvvz) [SIG Apps and Storage]
  • Fixed an EndpointSlice Controller hashing bug that could cause EndpointSlices to incorrectly handle Pods with duplicate IP addresses. For example this could happen when a new Pod reused an IP that was also assigned to a Pod in a completed state. (#115907, @qinqon) [SIG Apps and Network]
  • Fixing issue with Winkernel Proxier - ClusterIP Loadbalancers are missing if the ExternalTrafficPolicy is set to Local and the available endpoints are all remoteEndpoints. (#115919, @princepereira) [SIG Network and Windows]
  • Golang.org/x/net updates to v0.7.0 to fix CVE-2022-41723 (#115786, @liggitt) [SIG API Machinery, Architecture, Auth, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation, Node and Storage]
  • Kubeadm: fix a bug where the uploaded kubelet configuration in kube-system/kubelet-config ConfigMap does not respect user patch (#115575, @SataQiu) [SIG Cluster Lifecycle]
  • Kubeadm: modify '--config' flag from required to optional for 'kubeadm kubeconfig user' command (#116074, @SataQiu) [SIG Cluster Lifecycle]
  • Yes, discovery document will correctly return the resources for aggregated apiservers that do not implement aggregated disovery (#115770, @Jefftree) [SIG API Machinery]

Other (Cleanup or Flake)

  • Improved FormatMap: Improves performance by about 4x, or nearly 2x in the worst case (#112661, @aimuz) [SIG Node]
  • Upgrade go-jose to v2.6.0 (#115893, @mgoltzsche) [SIG API Machinery, Auth, Cluster Lifecycle and Testing]
  • apiserver_admission_webhook_admission_duration_seconds buckets have been expanded, 25s is now the largest bucket size to match the webhook default timeout. (#115802, @logicalhan) [SIG API Machinery and Instrumentation]

Dependencies

Added

Nothing has changed.

Changed

  • github.com/coredns/corefile-migration: v1.0.18 → v1.0.20
  • github.com/golang-jwt/jwt/v4: v4.2.0 → v4.4.2
  • go.etcd.io/etcd/api/v3: v3.5.5 → v3.5.7
  • go.etcd.io/etcd/client/pkg/v3: v3.5.5 → v3.5.7
  • go.etcd.io/etcd/client/v2: v2.305.5 → v2.305.7
  • go.etcd.io/etcd/client/v3: v3.5.5 → v3.5.7
  • go.etcd.io/etcd/pkg/v3: v3.5.5 → v3.5.7
  • go.etcd.io/etcd/raft/v3: v3.5.5 → v3.5.7
  • go.etcd.io/etcd/server/v3: v3.5.5 → v3.5.7
  • go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp: v0.35.0 → v0.35.1
  • golang.org/x/net: v0.5.0 → v0.7.0
  • golang.org/x/sys: v0.4.0 → v0.5.0
  • golang.org/x/term: v0.4.0 → v0.5.0
  • golang.org/x/text: v0.6.0 → v0.7.0
  • gopkg.in/square/go-jose.v2: v2.2.2 → v2.6.0
  • k8s.io/klog/v2: v2.80.1 → v2.90.1

Removed

v1.27.0-alpha.2

Downloads for v1.27.0-alpha.2

Source Code

filename sha512 hash
kubernetes.tar.gz 5420d881db6412c1c1e55044aea61f310ef42d7809d4d90113b2a80ae0d1446f3e7988a8205100c476a313182a0c8b2d1605ad3000eee3b45fec4034d17f2ac2
kubernetes-src.tar.gz 3b9693bd03ed7f5aee3257a167e431b9de4c576f8843f1441f81cbcdfc6be607c84ca703bd2e7ca4bb5f3b9dee9fbb8645cdf49c1921d796e1a3f027c8f23162

Client Binaries

filename sha512 hash
kubernetes-client-darwin-amd64.tar.gz ce9875156a7c80452dc3303177b0a137cfc6ae398b66a32b1436768ab77771b000287dba0702510da239c056a697e624416f6126a6205c3c65e78ff6d7d4635b
kubernetes-client-darwin-arm64.tar.gz bc0791295f926f285f18163bef7faf893162918d75e8de0aa46704d2ac665bbff641a7332d5a3d112d93dd5e14087f8e7333e39b4cc44ab71330e059b0abe4bb
kubernetes-client-linux-386.tar.gz 76abdb1dbb8886c554628ba634449c42f0c61eb47e168d1cb7bb1eabb0354b37474738879955805165e52a4cbbe39c57cabe63a2b8dbbaed00e14a0da5a7419f
kubernetes-client-linux-amd64.tar.gz 5ced29d3f8411f34ba9dbd115aab7e45d542b34f7feebba6bfe8dcd394abd9fe127daa6c36460c2d8b35ca6386729a3e644b23b5631fe4d81ae3ae0cf1297e67
kubernetes-client-linux-arm.tar.gz fff2ce7f24f9fa6c5240d69d81a0c363742b17963265ce744e3366d05d149bce005cfe96fb1dd20b7c5faceed481225da0715dee8b2743ee3ff21391c742a1a0
kubernetes-client-linux-arm64.tar.gz 54da883e07f1a6e6bb9ca29ca4b5bedb2d24485cd07c8ba03da90b063a07e01271d0ad3b58d20fc3370a40486134b7b6144ad2d18049d7e3a38600ad14d84f8f
kubernetes-client-linux-ppc64le.tar.gz 50be6728b20612ea3d422e3346150c4cece1cd42356446cf8fd2f9164a40ac997188d840536dc45deab5acf12143233d36b76d9ef12165bb0884024f1725f28c
kubernetes-client-linux-s390x.tar.gz fa76f8655266fb9b64c450185c175f6854ac1d569140f6d62c383d829111091b79a2f266929ca10f642a989e9ada066988845666621fe13c75cbcfa971f5aa0d
kubernetes-client-windows-386.tar.gz 67c36d790cd5de91e0241cee3800fcdb49db3f3a9e91e087937686367149d7b06c489e62919ef6fdcb8ec29974ead4a64bab0eb3278f404188cf8fffe89baba9
kubernetes-client-windows-amd64.tar.gz 49e73490b58576237627cc8015f84eda36aa3af02b8e80b251b07d294fe161e90815ee4149f3b8605fad7c43b278f7b0f631ae3d51fa344ad326abcd480d781d
kubernetes-client-windows-arm64.tar.gz 27ac0573663d5e45585b205c84cb0e5a7f16282654e30445ad4115a148c20b548d0c3520e45327a4443768c83b68c96e8754cdfb34f17fa0ebf875e4eec2eb48

Server Binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz 0a2fa2de60af23f722a27479ee0721551561a6bf947ec66c9548b0d14410745de2db3f69c6536768768ffeec4f6afe3af3bd336aeccef67391c4cdaca4a427a6
kubernetes-server-linux-arm.tar.gz c5ab1da7a7e19acebdba7107c27954e522d33c245ea04556347b601e2cc0f40595b9ca5159661b134a090d5505a76d967da3161b3a409b2a4d9c0f36e1b4d7b1
kubernetes-server-linux-arm64.tar.gz 3a5cad9ae0f4a1086a238e2fb44f59733361d9dea206390c73825daf25dc8b333fce166f5c5e6c0e1ca3be80b303afb1b6b6c8e9dc13666446c2a70b5b7bc1cb
kubernetes-server-linux-ppc64le.tar.gz 411be709cde53aa27bca30e7d5ab7523f4dea192c85a1aa810985b23a41cdd00c6969e9b9614a193618be94d346900c2f8e9211c95927a12398142268db4ce5e
kubernetes-server-linux-s390x.tar.gz 0ac65f78a5cad3506649ca40912f328b2af747ae6367f0ca16ba741af20aeecd73c27ea216921ab7a28da8a61b58f0760e9211c65953e70304fec4b940a39440

Node Binaries

filename sha512 hash
kubernetes-node-linux-amd64.tar.gz 3a0559b2305136a15cd43104ce728f7651b4fcde13db69f565d66e117ad7f8f30a017d3ea6be92811e4ab880273033c089688675559912bfb6d2aa2c92d60225
kubernetes-node-linux-arm.tar.gz ac7597cfab9eb93dd9c0f1cd088dd08d120991bc94a718fa89ddd9b8fa12a9f6b9987eaaee66b8aafbb055c836c289ca7ca415b57f61bd8f9159045025026100
kubernetes-node-linux-arm64.tar.gz 395d65f26b4f482cd1d8be49b846ce80f536ca825ae8ce25d10fe746d95e4297c31512247d22caefe632d2236a33616e2650ed385811ced24c3e6338a5eda36d
kubernetes-node-linux-ppc64le.tar.gz 7f92e5fdfba981ac80b71fdc00e84b4eb661604861f5602e5fa489f13a10ac699e6e5795cc3654ff95e1b5f7fd51df7773bd5ae511ace9b861a87b6fb1465cc7
kubernetes-node-linux-s390x.tar.gz 75ec78e900a4df4819c899893fe98fe32b6fa8ae000318dcfed8972d356cc1c5e0a3875885681375c080b0770c377164c03c100a6c45b7d025363e174a00af00
kubernetes-node-windows-amd64.tar.gz d7630730d547414bdb2b245e1b444a5949cecead751d6c243db72e8f20782ba85e1c06dfab499c13e1b529a74a5d4acef4a9b1a6ca571faf41d3253b1bf74773

Container Images

All container images are available as manifest lists and support the described architectures. It is also possible to pull a specific architecture directly by adding the "-$ARCH" suffix to the container image name.

name architectures
registry.k8s.io/conformance:v1.27.0-alpha.2 amd64, arm, arm64, ppc64le, s390x
registry.k8s.io/kube-apiserver:v1.27.0-alpha.2 amd64, arm, arm64, ppc64le, s390x
registry.k8s.io/kube-controller-manager:v1.27.0-alpha.2 amd64, arm, arm64, ppc64le, s390x
registry.k8s.io/kube-proxy:v1.27.0-alpha.2 amd64, arm, arm64, ppc64le, s390x
registry.k8s.io/kube-scheduler:v1.27.0-alpha.2 amd64, arm, arm64, ppc64le, s390x

Changelog since v1.27.0-alpha.1

Changes by Kind

API Change

  • A fix in the resource.k8s.io/v1alpha1/ResourceClaim API avoids harmless (?) ".status.reservedFor: element 0: associative list without keys has an element that's a map type" errors in the apiserver. Validation now rejects the incorrect reuse of the same UID in different entries. (#115354, @pohly) [SIG API Machinery]
  • CacheSize field in EncryptionConfiguration is not supported for KMSv2 provider (#113121, @aramase) [SIG API Machinery, Auth and Testing]
  • K8s.io/client-go/tools/record.EventBroadcaster: after Shutdown() is called, the broadcaster now gives up immediately after a failure to write an event to a sink. Previously it tried multiple times for 12 seconds in a goroutine. (#115514, @pohly) [SIG API Machinery]
  • K8s.io/component-base/logs now also supports adding command line flags to a flag.FlagSet. (#114731, @pohly) [SIG Architecture]
  • Update API reference for Requests, specifying they must not exceed limits (#115434, @ehashman) [SIG Architecture, Docs and Node]
  • /metrics/slis is made available for control plane components allowing you to scrape health check metrics. (#114997, @Richabanker) [SIG API Machinery, Apps, Architecture, Auth, Autoscaling, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation, Network, Node, Release, Scheduling, Storage and Testing]

Feature

  • A new client side metric rest_client_request_retries_total has been added that tracks the number of retries sent to the server, partitioned by status code, verb, and host (#108396, @tkashem) [SIG API Machinery, Architecture and Instrumentation]

  • A new feature has been enabled to improve the performance of the iptables mode of kube-proxy in large clusters. You do not need to take any action, however:

    1. If you experience problems with Services not syncing to iptables correctly, you can disable the feature by passing --feature-gates=MinimizeIPTablesRestore=false to kube-proxy (and file a bug if this fixes it). (This might also be detected by seeing the value of kube-proxy's sync_proxy_rules_iptables_partial_restore_failures_total metric rising.)
    2. If you were previously overriding the kube-proxy configuration for performance reasons, this may no longer be necessary. See https://kubernetes.io/docs/reference/networking/virtual-ips/#optimizing-iptables-mode-performance. (#115138, @danwinship) [SIG Network]

  • Add kubelet Topology Manager metrics to track admission requests processed by it and occured admission errors. (#115137, @swatisehgal) [SIG Node and Testing]

  • Add logging-format option to CCMs based on k8s.io/cloud-provider (#108984, @LittleFox94) [SIG Cloud Provider and Instrumentation]

  • Add new -f flag into debug command to be used passing pod or node files instead explicit names. (#111453, @ardaguclu) [SIG CLI and Testing]

  • Added "general", "baseline", and "restricted" debugging profiles for kubectl debug. (#114280, @sding3) [SIG CLI]

  • Added apiserver_envelope_encryption_kms_operations_latency_seconds metric to measure the KMSv2 grpc calls latency. (#115649, @aramase) [SIG API Machinery, Auth and Testing]

  • Adds scheduler preemption support for pods using ReadWriteOncePod PVCs (#114051, @chrishenzie) [SIG Scheduling, Storage and Testing]

  • Adds the applyconfiguration generator to the code-generator script that generates server-side apply configuration and client APIs (#114987, @astefanutti) [SIG API Machinery]

  • Dynamic Resource Allocation framework can be used for network devices (#114364, @bart0sh) [SIG Node]

  • Fixed bug which caused the status of Indexed Jobs to only be updated when there are newly completed indexes. The completed indexes are now updated if the .status.completedIndexes has values outside of the [0, .spec.completions> range (#115349, @danielvegamyhre) [SIG Apps]

  • GRPC probes now set a linger option of 1s to improve the TIME-WAIT state. (#115321, @rphillips) [SIG Network and Node]

  • Kubelet config file will be backed up to /etc/kubernetes/tmp/ folder with kubeadm-kubelet-config append with a random suffix as the filename (#114695, @chendave) [SIG Cluster Lifecycle]

  • Kubelet no longer creates certain legacy iptables rules by default. It is possible that this will cause problems with some third-party components that improperly depended on those rules. If this affects you, you can run kubelet with --feature-gates=IPTablesOwnershipCleanup=false, but you should also file a bug against the third-party component. (#114472, @danwinship) [SIG Network]

  • Kubernetes is now built with go 1.20 (#114502, @cpanato) [SIG Release and Testing]

  • Migrated the ResourceQuota controller (within kube-controller-manager) to use contextual logging. (#113315, @ncdc) [SIG API Machinery, Apps and Testing]

  • New feature gate, ServiceNodePortStaticSubrange, to enable the new strategy in the NodePort Service port allocators, so the node port range is subdivided and dynamic allocated NodePort port for Services are allocated preferentially from the upper range. (#114418, @xuzhenglun) [SIG Network]

  • Scheduler doesn't run plugin's Score method when its PreScore method returned a Skip status. In other words, your PreScore/Score plugin can return a Skip status in PreScore if the plugin does nothing in Score for that Pod. (#115652, @kidddddddddddddddddddddd) [SIG Scheduling]

  • The go version defined in .go-version is now fetched when invoking test, build, and code generation targets if the current go version does not match it. Set $FORCE_HOST_GO=y while testing or building to skip this behavior, or set $GO_VERSION to override the selected go version. (#115377, @liggitt) [SIG Testing]

  • The mount-utils mounter now provides an option to limit the number of concurrent format operations. (#115379, @artemvmin) [SIG API Machinery, Architecture, Auth, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation, Network, Node and Storage]

Bug or Regression

  • Apply configurations can be generated for types with non-builtin map fields (#114920, @astefanutti) [SIG API Machinery]
  • Enforce nodeName cannot be set along with non-empty schedulingGates (#115569, @Huang-Wei) [SIG Apps and Scheduling]
  • Etcd: Update to v3.5.7 (#115310, @mzaian) [SIG API Machinery, Cloud Provider, Cluster Lifecycle and Testing]
  • Fix a bug that caused to panic the apiserver when trying to allocate a Service with a dynamic ClusterIP and it has been configured with Service CIDRs with a /28 mask for IPv4 and a /124 mask for IPv6 (#115322, @aojea) [SIG Testing]
  • Fix an issue where a CSI migrated volume may be prematurely detached when the CSI driver is not running on the node. If CSI migration is enabled on the node, even the csi-driver is not up and ready, we will still add this volume to DSW. (#115464, @sunnylovestiramisu) [SIG Apps and Storage]
  • Fix nil pointer error in nodevolumelimits csi logging (#115179, @sunnylovestiramisu) [SIG Scheduling]
  • Fix the regression that introduced 34s timeout for DELETECOLLECTION calls (#115341, @tkashem) [SIG API Machinery]
  • Fixing issue with Winkernel Proxier - IPV6 load balancer policies are missing when service is configured with ipFamilyPolicy: RequireDualStack (#115503, @princepereira) [SIG Network and Windows]
  • Fixing issue with Winkernel Proxier - IPV6 load balancer policies are missing when service is configured with ipFamilyPolicy: RequireDualStack (#115577, @princepereira) [SIG Network and Windows]
  • Flag workerCount has been added to cloud node controller which defines how many workers will be synchronizing nodes. (#113104, @pawbana) [SIG API Machinery, Cloud Provider and Scalability]
  • Kube-apiserver: errors decoding objects in etcd are now recorded in an apiserver_storage_decode_errors_total counter metric (#114376, @baomingwang) [SIG API Machinery and Instrumentation]
  • Kube-apiserver: regular expressions specified with the --cors-allowed-origins option are now validated to match the entire hostname inside the Origin header of the request and must contain '^' or the '//' prefix to anchor to the start, and '$' or the port separator ':' to anchor to the end. (#112809, @tkashem) [SIG API Machinery]
  • Kubeadm: fix an etcd learner-mode bug by preparing an etcd static pod manifest before promoting (#115038, @tobiasgiese) [SIG Cluster Lifecycle]
  • Kubelet: fix a bug of stoping rendering configmap when enabling fsquota monitoring (#112624, @pacoxu) [SIG Node and Storage]
  • Set device stage path whenever available for expansion during mount (#115346, @gnufied) [SIG Storage and Testing]
  • The Kubernetes API server now correctly detects and closes existing TLS connections when its client certificate file for kubelet authentication has been rotated. (#115315, @enj) [SIG API Machinery, Auth, Node and Testing]

Other (Cleanup or Flake)

  • Changes docs for --contention-profiling flag to reflect it performs block profiling (#114490, @MadhavJivrajani) [SIG API Machinery, Cloud Provider, Docs, Node and Scheduling]
  • E2e framework: added --report-complete-ginkgo and --report-complete-junit parameters. They work like ginkgo --json-report <report dir>/ginkgo/report.json --junit-report <report dir>/ginkgo/report.xml. (#115678, @pohly) [SIG Testing]
  • Promote pod resource limit/request metrics to stable. (#115454, @dgrisonnet) [SIG Instrumentation and Scheduling]
  • The ControllerManagerLeaderMigration feature, GA since 1.24, is unconditionally enabled and the feature gate option has been removed. (#113534, @pacoxu) [SIG API Machinery and Cloud Provider]

Dependencies

Added

Nothing has changed.

Changed

  • github.com/onsi/gomega: v1.24.2 → v1.26.0
  • go.uber.org/goleak: v1.2.0 → v1.2.1
  • golang.org/x/net: v0.4.0 → v0.5.0
  • golang.org/x/sys: v0.3.0 → v0.4.0
  • golang.org/x/term: v0.3.0 → v0.4.0
  • golang.org/x/text: v0.5.0 → v0.6.0
  • k8s.io/kube-openapi: 3758b55 → 1cb3ae2
  • k8s.io/utils: 1a15be2 → a36077c

Removed

Nothing has changed.

v1.27.0-alpha.1

Downloads for v1.27.0-alpha.1

Source Code

filename sha512 hash
kubernetes.tar.gz 36ddbb7f1cdf386cd6857d891029b7244dd13aa346a78ba2fa2146b866751802989fc5c5c8a8675f80b72b12816ae94b2b00fdeb01421ef15aad8ae87c06c512
kubernetes-src.tar.gz d5be5bdf5734c89338b2fd52942b70f8d57d831659235a0ea91c6fb10d74637c2a2aeed602bdafb4da01071764f754ddec9d37abf8aeb8eaa11636e405e93b04

Client Binaries

filename sha512 hash
kubernetes-client-darwin-amd64.tar.gz d9b5f7ec09b64a6e0d270c077fdcd4835b6e16f39373fbf1a2e2526f80aa4df25f41a7e1dab1c33c4ec3f3c430b1cd42b08944d4c39d8ac78c4b23db83d6411b
kubernetes-client-darwin-arm64.tar.gz e1a0f33d0610dbac940db0cad930bf4530f90a9c1702e534bb8c5524077af82d6da2f63befd3ba331ddfe84710ece101b9dd93f308ef727605646cc0d0847292
kubernetes-client-linux-386.tar.gz 1e49e5f94a3bd14c6c5681ea8ad003948f7824566dc4d8ff299aed0a3e650a2b0674ade00fc951131fe34c210b8b7832c1a1fd5c290ee8c9e42bac89efdc8f26
kubernetes-client-linux-amd64.tar.gz ddb000a6a1604a5cb95bbe296366eebd9e0b9b4be250b0d22302c697294840c216641f287dc7212b49f9f121549172590a1f1e285b3d87cee32bcbd95a7d19b1
kubernetes-client-linux-arm.tar.gz 40c242c7bae26da4948fe97daf256dc48d99edc91a535ff9f4516e214ff50cfbbbc985be8e4361a97bfd54dc8b406e6f4a68b1054396b01a157d54a6bd82c7e3
kubernetes-client-linux-arm64.tar.gz 54954248f4aa1d2977fe92a552cf7e0298c94adac8bf0720c697cfce654a1fbdf01cd56219e0dd064bab7b07a4cd125c257b61cd4d69af03ec550aec31cb26ac
kubernetes-client-linux-ppc64le.tar.gz d58709ea83b2a82ea44ae402a574ddc97177494bac90b9c6de30caf3fbcc79697addd0bb8245a62bbaf2fd35483415293659703cbed573bbe11a86a57814f8a3
kubernetes-client-linux-s390x.tar.gz 08ab82af97bb2ccf0b90d5de23960ce2634a42eaafcc50725ce345e3df61e082acc2e733c3aae159463645cbad28a8536371850899403eaeb7a040ed221ba861
kubernetes-client-windows-386.tar.gz 047fdddf4c1095240eb1296a1d79e9dbb90325d13e9ed94b3532ecfa843dbd089b4b5aa3d6a51e4265c1ecdb2f08b73cd05f309b8bf4c585b213fa605a0bc74d
kubernetes-client-windows-amd64.tar.gz 1bd72cfd091f452b4d32496a1f1b0c78231ae6cf9696ca029a340761aaeba08e27003d9fcb5942a63b2feddb2562b287b0d8c49fb0d92f2e50b65a947591b105
kubernetes-client-windows-arm64.tar.gz 07daf9e21a7741908e358f0a9ae30164229344c1653c435fb1c6029932431e5bb985842ebcc97330a6ca5aff57584488a17fe01b234de6286f6753faaa4d31f3

Server Binaries

filename sha512 hash
kubernetes-server-linux-amd64.tar.gz d426504774023346a994ca709ae48daf47baf0e2f680a2237cc1b8b5b2ba7d4a41be9d0f80af4f1c097348b01a3e1a968b3bbea5cb5937d17e0ef23db6a36b27
kubernetes-server-linux-arm.tar.gz d4b4eaa2012b9ce5f3fa111cd1a61ef98aec238905f134636470bab2661d4c14464dfc8223bd74456a8848e3c7fe879d14e1eba6c4f2376f9042893077fcb068
kubernetes-server-linux-arm64.tar.gz bc9b1388a93c65f6b603271e8a1a1d622698fd54ce26d3743e888efd5f61cd538229161006a2ab5afcbda8782f87646c9da02a5e7cc93ff52e48616a7d56cb33
kubernetes-server-linux-ppc64le.tar.gz 69972b9c95b50b7566660b44547d974133e6f2f18737a93c2f4a6ca5833400473c0917c0c44b1a27336990214c1f188c75e39701d91c567b8ff7d8ccd3496243
kubernetes-server-linux-s390x.tar.gz 1867d483df955260b9cf13bfe43451c2f906c1854399a396e0d9e2fac33fc4343d3c79039891c1b943cf4707312cedcffb4d0cedf7a69271020f88c50d230d5d

Node Binaries

filename sha512 hash
kubernetes-node-linux-amd64.tar.gz 132c74737e8fd525c8a4bcedbf7ad783917a42a485e740586933dceef76177c6043682654f76f88670933fea0a3066adfcfdd08a9b6e07b3a6ad23e903c1b4a5
kubernetes-node-linux-arm.tar.gz 7d7716457ff136344e8338ad52e819346de13495d79a5c615a8bfc9d45a00fa659d60630aa2025d8bc4570080d77d1e298e47a8934d47c0c3fb5b70b043ef2dd
kubernetes-node-linux-arm64.tar.gz df5b9d5ae99d8001b25448bf6148b9cf3a47ce8b4d1f7b1f52ab3dd8ad0ee6958045a382a561d3a617991a2255712f2e6ed0c8d6fb843edbdd0284054a238d74
kubernetes-node-linux-ppc64le.tar.gz 9c0fc5952d8dcf07cb0225c252112fead50a4920d978f174a17a881d92c8b34ed162ec3a806bb451a990b81e8294f39755c93acbfd6147748c5dea9bb8ad38f2
kubernetes-node-linux-s390x.tar.gz 0b203edad11a1350d3f3b6f16391450f2ca7bb19424a9eb398f69f8ef2195c821d3c72105248889cfb6efd317a3012d94c9564cb6b5794ba050fcc0902364eaa
kubernetes-node-windows-amd64.tar.gz 68b2d73b7bf98445498e46188d39fde06acfee946ac9075f064f39bc7ea658cfcb82498ffe06bc2a2272ad5c105cac21d4929de47038e0ce95e07e3cd9d519ad

Container Images

All container images are available as manifest lists and support the described architectures. It is also possible to pull a specific architecture directly by adding the "-$ARCH" suffix to the container image name.

name architectures
registry.k8s.io/conformance:v1.27.0-alpha.1 amd64, arm, arm64, ppc64le, s390x
registry.k8s.io/kube-apiserver:v1.27.0-alpha.1 amd64, arm, arm64, ppc64le, s390x
registry.k8s.io/kube-controller-manager:v1.27.0-alpha.1 amd64, arm, arm64, ppc64le, s390x
registry.k8s.io/kube-proxy:v1.27.0-alpha.1 amd64, arm, arm64, ppc64le, s390x
registry.k8s.io/kube-scheduler:v1.27.0-alpha.1 amd64, arm, arm64, ppc64le, s390x

Changelog since v1.26.0

Changes by Kind

Deprecation

  • Add warnings to the Services API. Kubernetes now warns for Services in the case of:
    • IPv4 addresses with leading zeros
    • IPv6 address in non-canonical format (RFC 5952) (#114505, @aojea) [SIG Network]
  • Support for the alpha seccomp annotations seccomp.security.alpha.kubernetes.io/pod and container.seccomp.security.alpha.kubernetes.io, deprecated since v1.19, has been completely removed. The seccomp fields are no longer auto-populated when pods with seccomp annotations are created. Pods should use the corresponding pod or container securityContext.seccompProfile field instead. (#114947, @saschagrunert)

API Change

  • A terminating pod on a node that is not caused by preemption won't prevent kube-scheduler from preempting pods on that node
    • Rename 'PreemptionByKubeScheduler' to 'PreemptionByScheduler' (#114623, @Huang-Wei) [SIG Scheduling]
  • Added new option to the InterPodAffinity scheduler plugin to ignore existing pods` preferred inter-pod affinities if the incoming pod has no preferred inter-pod affinities. This option can be used as an optimization for higher scheduling throughput (at the cost of an occasional pod being scheduled non-optimally/violating existing pods' preferred inter-pod affinities). To enable this scheduler option, set the InterPodAffinity scheduler plugin arg "ignorePreferredTermsOfExistingPods: true". (#114393, @danielvegamyhre) [SIG API Machinery and Scheduling]
  • Added warnings about workload resources (Pods, ReplicaSets, Deployments, Jobs, CronJobs, or ReplicationControllers) whose names are not valid DNS labels. (#114412, @thockin) [SIG API Machinery and Apps]
  • K8s.io/component-base/logs: usage of the pflag values in a normal Go flag set led to panics when printing the help message (#114680, @pohly) [SIG Instrumentation]
  • Kube-proxy, kube-scheduler and kubelet have HTTP APIs for changing the logging verbosity at runtime. This now also works for JSON output. (#114609, @pohly) [SIG API Machinery, Architecture, Cloud Provider, Instrumentation and Testing]
  • Kubeadm: explicitly set priority for static pods with priorityClassName: system-node-critical (#114338, @champtar) [SIG Cluster Lifecycle]
  • Kubelet: migrate "--container-runtime-endpoint" and "--image-service-endpoint" to kubelet config (#112136, @pacoxu) [SIG API Machinery, Node and Scalability]
  • Kubernetes components that perform leader election now only support using Leases for this. (#114055, @aimuz) [SIG API Machinery, Cloud Provider and Scheduling]
  • StatefulSet names must be DNS labels, rather than subdomains. Any StatefulSet which took advantage of subdomain validation (by having dots in the name) can't possibly have worked, because we eventually set pod.spec.hostname from the StatefulSetName, and that is validated as a DNS label. (#114172, @thockin) [SIG Apps]
  • The following feature gates for volume expansion GA features have been removed and must no longer be referenced in --feature-gates flags: ExpandCSIVolumes, ExpandInUsePersistentVolumes, ExpandPersistentVolumes (#113942, @mengjiao-liu) [SIG API Machinery, Apps and Testing]
  • The list-type of the alpha resourceClaims field introduced to Pods in 1.26.0 was modified from "set" to "map", resolving an incompatibility with use of this schema in CustomResourceDefinitions and with server-side apply. (#114585, @JoelSpeed) [SIG API Machinery]

Feature

  • Graduated the LegacyServiceAccountTokenTracking feature gate to Beta. The usage of auto-generated secret-based service account token now produces warnings by default, and relevant Secrets are labeled with a last-used timestamp (label key kubernetes.io/legacy-token-last-used). (#114523, @zshihang) [SIG API Machinery and Auth]
  • Kube-proxy accepts the ContextualLogging, LoggingAlphaOptions, LoggingBetaOptions feature gates. (#115233, @pohly) [SIG Instrumentation and Network]
  • Kube-up now includes CoreDNS version v1.9.3 (#114279, @pacoxu) [SIG Cloud Provider and Cluster Lifecycle]
  • Kubeadm: add the experimental (alpha) feature gate EtcdLearnerMode that allows etcd members to be joined as learner and only then promoted as voting members (#113318, @pacoxu) [SIG Cluster Lifecycle]
  • Kubectl will display SeccompProfile for pods, containers and ephemeral containers, if values were set. (#113284, @williamyeh) [SIG CLI and Security]
  • Kubectl: add e2e test for default container annotation (#115046, @pacoxu) [SIG Architecture, CLI and Testing]
  • Kubelet TCP and HTTP probes are more effective using networking resources: conntrack entries, sockets, ... This is achieved by reducing the TIME-WAIT state of the connection to 1 second, instead of the defaults 60 seconds. This allows kubelet to free the socket, and free conntrack entry and ephemeral port associated. (#115143, @aojea) [SIG Network and Node]
  • Kubernetes is now built with Go 1.19.5 (#115010, @cpanato) [SIG Release and Testing]
  • Make kubectl-convert binary linking static (also affects the deb and rpm packages). (#114228, @saschagrunert) [SIG Release]
  • New metrics cidrset_cidrs_max_total and multicidrset_cidrs_max_total expose the max number of CIDRs that can be allocated. (#112260, @aryan9600) [SIG Apps, Instrumentation and Network]
  • Profiling can now be served on a unix-domain socket by using the --profiling-path option (when profiling is enabled) for security purposes. (#114191, @apelisse) [SIG API Machinery]
  • Scheduler doesn't run plugin's Filter method when its PreFilter method returned a Skip status. In other words, your PreFilter/Filter plugin can return a Skip status in PreFilter if the plugin does nothing in Filter for that Pod. Scheduler skips NodeAffinity Filter plugin when NodeAffinity Filter plugin has nothing to do with a Pod. It may affect some metrics values related to the NodeAffinity Filter plugin. (#114125, @sanposhiho) [SIG Scheduling, Storage and Testing]
  • Scheduler skips InterPodAffinity Filter plugin when InterPodAffinity Filter plugin has nothing to do with a Pod. It may affect some metrics values related to the InterPodAffinity Filter plugin. (#114889, @sanposhiho) [SIG Scheduling and Testing]
  • Scheduler volumebinding: leverage PreFilterResult to reduce down to only eligible node(s) for pod with bound claim(s) to local PersistentVolume(s) (#109877, @yibozhuang) [SIG Scheduling, Storage and Testing]
  • The MinDomainsInPodTopologySpread feature gate is enabled by default as a Beta feature in 1.27. (#114445, @mengjiao-liu) [SIG Scheduling]
  • The AdvancedAuditing feature gate was locked to true in v1.27, and will be removed completely in v1.28 (#115163, @SataQiu) [SIG API Machinery]
  • Updated cAdvisor to v0.47.0 (#114883, @bobbypage) [SIG Architecture, Auth, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation, Node and Storage]
  • Use HorizontalPodAutoscaler v2 for kubectl (#114886, @a7i) [SIG CLI]
  • Verify that the key matches the cert (#113581, @aimuz) [SIG Apps]
  • When any scheduler plugin returns an unschedulableAndUnresolvable status in PostFilter, the scheduling cycle terminates immediately for that Pod. (#114699, @kerthcet) [SIG Scheduling and Testing]

Documentation

  • Error message for Pods with requests exceeding limits will have a limit value printed. (#112925, @SergeyKanzhelev) [SIG Apps and Node]

Failing Test

  • Deflake a preemption test that may patch Nodes incorrectly. (#114350, @Huang-Wei) [SIG Scheduling and Testing]

Bug or Regression

  • Adding (dry run) and (server dry run) suffixes to kubectl scale command when dry-run is passed (#114252, @ardaguclu) [SIG CLI and Testing]
  • Change the error message to "cannot exec into multiple objects at a time" when file passed to kubectl exec contains multiple resources (#114249, @ardaguclu) [SIG CLI and Testing]
  • Changing the error message of kubectl rollout restart when subsequent kubectl rollout restart commands are executed within a second (#113040, @ardaguclu) [SIG CLI]
  • Client-go: fixes potential data races retrying requests using a custom io.Reader body; with this fix, only requests with no body or with string / []byte / runtime.Object bodies can be retried (#113933, @liggitt) [SIG API Machinery]
  • Do not add DisruptionTarget condition by PodGC for pods which are in terminal phase (#115056, @mimowo) [SIG Apps and Testing]
  • Do not include preemptor pod metadata in the event message (#114923, @mimowo) [SIG Scheduling]
  • Do not include preemptor pod metadata in the message of DisruptionTarget condition (#114914, @mimowo) [SIG Scheduling]
  • Do not include scheduler name in the preemption event message (#114980, @mimowo) [SIG Scheduling]
  • Don't create endpoints for Service of type ExternalName. (#114814, @panslava) [SIG Apps, Network and Testing]
  • Fail CRI connection if service or image endpoint is throwing any error on kubelet startup. (#115102, @saschagrunert) [SIG Node]
  • Failed pods associated with a job with parallelism = 1 are recreated by the job controller honoring exponential backoff delay again. However, for jobs with parallelism > 1, pods might be created without exponential backoff delay. (#114516, @nikhita) [SIG Apps and Testing]
  • Fix SELinux label for host path volumes created by host path provisioner (#112021, @mrunalp) [SIG Node and Storage]
  • Fix a bug on the endpointslice mirroring controller that generated multiple slices in some cases for custom endpoints in non canonical format (#114155, @aojea) [SIG Apps, Network and Testing]
  • Fix a bug where events/v1 Events with similar event type and reporting instance were not aggregated by client-go. (#112365, @dgrisonnet) [SIG API Machinery and Instrumentation]
  • Fix a bug where when emitting similar Events consecutively, some were rejected by the apiserver. (#114237, @dgrisonnet) [SIG API Machinery]
  • Fix a data race when emitting similar Events consecutively (#114236, @dgrisonnet) [SIG API Machinery]
  • Fix a regression that the scheduler always goes through all Filter plugins. (#114518, @Huang-Wei) [SIG Scheduling]
  • Fix bug in CRD Validation Rules (beta) and ValidatingAdmissionPolicy (alpha) where all admission requests could result in internal error: runtime error: index out of range [3] with length 3 evaluating rule: <rule name> under certain circumstances. (#114857, @jpbetz) [SIG API Machinery, Auth and Cloud Provider]
  • Fix clearing of rate-limiter for the queue of checks for cleaning stale pod disruption conditions. The bug could result in the PDB synchronization updates firing too often or the pod disruption cleanups taking too long to happen. (#114770, @mimowo) [SIG Apps]
  • Fix: Route controller should update routes with NodeIP changed (#108095, @lzhecheng) [SIG Cloud Provider and Network]
  • Fixed CSI PersistentVolumes to allow Secrets names longer than 63 characters. (#114776, @jsafrane) [SIG Apps]
  • Fixed DaemonSet to update the status even if it fails to create a pod. (#113787, @gjkim42) [SIG Apps and Testing]
  • Fixed StatefulSetAutoDeletePVC feature when OwnerReferencesPermissionEnforcement admission plugin is enabled. (#114116, @jsafrane) [SIG Apps, Auth and Storage]
  • Fixed bug in reflector that couldn't recover from "Too large resource version" errors with API servers before 1.17.0 (#115093, @xuzhenglun) [SIG API Machinery]
  • Fixed file permission issues that happened during update of Secret/ConfigMap/projected volume when fsGroup is used. The problem caused a race condition where application gets intermittent permission denied error when reading files that were just updated, before the correct permissions were applied. (#114464, @tsaarni) [SIG Storage]
  • Fixes panic validating custom resource definition schemas that set multipleOf to 0 (#114869, @liggitt) [SIG API Machinery, Architecture, Auth, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation, Node and Storage]
  • Fixes stuck apiserver if an aggregated apiservice returned 304 Not Modified for aggregated discovery information (#114459, @alexzielenski) [SIG API Machinery]
  • Fixing issue in Winkernel Proxier - Unexpected active TCP connection drops while horizontally scaling the endpoints for a LoadBalancer Service with Internal Traffic Policy: Local (#113742, @princepereira) [SIG Network and Windows]
  • Fixing issue on Windows when calculating cpu limits on nodes with more than 64 logical processors (#114231, @mweibel) [SIG Node and Windows]
  • Fixing issue with Winkernel Proxier - No ingress load balancer rules with endpoints to support load balancing when all the endpoints are terminating. (#113776, @princepereira) [SIG Network, Testing and Windows]
  • Hide .metadata.managedFields when describing CRs (#114584, @soltysh) [SIG CLI]
  • IPVS: Any ipvs scheduler can now be configured. If a un-usable scheduler is configured kube-proxy will re-start and the logs must be checked (same as before but different log printouts). (#114878, @uablrek) [SIG Network]
  • If a user attempts to add an ephemeral container to a static pod, they will get a visible validation error. (#114086, @xmcqueen) [SIG Apps and Node]
  • Kube-apiserver: removed N^2 behavior loading webhook configurations. (#114794, @lavalamp) [SIG API Machinery, Architecture, CLI, Cloud Provider and Node]
  • Kube-controller-manager will not run nodeipam controller when allocator type is CloudAllocator and the cloud provider is not enabled. (#114596, @andrewsykim) [SIG Cloud Provider]
  • Kube-proxy with proxy-mode=ipvs can be used with statically linked kernels. The reseved IPv4 range TEST-NET-2 in rfc5737 MUST NOT be used for ClusterIP or loadBalancerIP since address 198.51.100.0 is used for probing. (#114669, @uablrek) [SIG Network]
  • Kubeadm: fix the bug that kubeadm always do CRI detection even if it is not required by a phase subcommand (#114455, @SataQiu) [SIG Cluster Lifecycle]
  • Kubeadm: improve retries when updating node information, in case kube-apiserver is temporarily unavailable (#114176, @QuantumEnergyE) [SIG Cluster Lifecycle]
  • Kubeadm: respect user provided kubeconfig during discovery process (#113998, @SataQiu) [SIG Cluster Lifecycle]
  • Kubectl port-forward now exits with exit code 1 when remote connection is lost (#114460, @brianpursley) [SIG API Machinery]
  • Kubectl: use label selector for filtering out resources when pruning for kubectl diff (#114863, @danlenar) [SIG CLI and Testing]
  • LabelSelectors specified in topologySpreadConstraints are now validated to ensure that pod is scheduled as expected. Existing pods with invalid LabelSelectors can be updated, but new pods are required to specify valid LabelSelectors. (#111802, @maaoBit) [SIG Apps]
  • Optimizing loadbalancer creation with the help of attribute Internal Traffic Policy: Local (#114407, @princepereira) [SIG Network]
  • Relax API validation for usage key encipherment and kubelet uses requested usages accordingly (#111660, @pacoxu) [SIG API Machinery, Apps, Auth and Node]
  • Shared informers now correctly propagate whether they are synced or not. Individual informer handlers may now check if they are synced or not (new HasSynced method). Library support is added to assist controllers in tracking whether their own work is completed for items in the initial list (AsyncTracker). (#113985, @lavalamp) [SIG API Machinery, Apps, Auth, Network, Node and Testing]
  • Statefulset status will be consistent on API errors (#113834, @atiratree) [SIG Apps]
  • Total test spec is now available by ProgressReporter, it will be reported before test suite got executed. (#114417, @chendave) [SIG Architecture, Auth, CLI, Cloud Provider, Instrumentation, Node and Testing]
  • TryUnmount should respect mounter.withSafeNotMountedBehavior (#114736, @andyzhangx) [SIG Storage]
  • When describing deployments, OldReplicaSets now always shows all replicasets controlled the deployment, not just those that still have replicas available. (#113083, @llorllale) [SIG CLI]

Other (Cleanup or Flake)

  • Callers of wait.ExponentialBackoffWithContext must pass a ConditionWithContextFunc to be consistent with the signature and avoid creating a duplicate context. If your condition does not need a context you can use the ConditionFunc.WithContext() helper to ignore the context, or use ExponentialBackoff directly. (#115113, @smarterclayton) [SIG API Machinery, Storage and Testing]
  • Fix incorrect log information (#110723, @yangjunmyfm192085) [SIG Network]
  • Improved misleading message, in case of no metrics received for the HPA controlled pods. (#114740, @kushagra98) [SIG Apps and Autoscaling]
  • Kubeadm: remove the deprecated v1beta2 API. kubeadm 1.26's "config migrate" command can be used to migrate a v1beta2 configuration file to v1beta3. (#114540, @pacoxu) [SIG Cluster Lifecycle]
  • Remove unused rule for nodes/spec from ClusterRole system:kubelet-api-admin (#113267, @hoskeri) [SIG Auth and Cloud Provider]
  • Renamed API server identity Lease labels to use the key apiserver.kubernetes.io/identity (#114586, @andrewsykim) [SIG API Machinery, Apps, Cloud Provider and Testing]
  • The CSIMigrationAzureFile feature gate (for the feature which graduated to GA in v1.26) is now unconditionally enabled and will be removed in v1.28. (#114953, @enj) [SIG Storage]
  • The WaitFor and WaitForWithContext functions in the wait package have been marked private. Callers should use the equivalent Poll* method with a zero duration interval. (#115116, @smarterclayton) [SIG API Machinery]
  • The feature gates CSIInlineVolume, CSIMigration, DaemonSetUpdateSurge, EphemeralContainers, IdentifyPodOS, LocalStorageCapacityIsolation, NetworkPolicyEndPort and StatefulSetMinReadySeconds that graduated to GA in v1.25 and were unconditionally enabled have been removed in v1.27 (#114410, @SataQiu) [SIG Node]
  • This flag master-service-namespace will be removed in v1.27. (#114446, @lengrongfu) [SIG API Machinery]
  • Wait.ContextForChannel() now implements the context.Context interface and does not return a cancellation function. (#115140, @smarterclayton) [SIG API Machinery and Cloud Provider]

Dependencies

Added

Changed

Removed

  • github.com/elazarl/goproxy: 947c36d
  • github.com/mindprince/gonvml: 9ebdce4