This guide explains how to upgrade Cluster API Provider Hetzner (aka CAPH).
Connect kubectl to the management cluster.
I use .envrc files with direnv,
but this is optional.
❯ cd mgm-cluster/
direnv: loading ~/mgm-cluster/.envrc
direnv: export +KUBECONFIG +STARSHIP_CONFIG
Check, that you are connected to the correct cluster:
❯ k config current-context
mgm-cluster-admin@mgm-cluster
OK, looks good.
Is clusterctl still up to date?
❯ clusterctl version
clusterctl version: &version.Info{Major:"1", Minor:"3", GitVersion:"v1.3.2", GitCommit:"18c6e8e6cda0eaf71d509258186fa8db30a8fa62", GitTreeState:"clean", BuildDate:"2023-01-10T13:20:59Z", GoVersion:"go1.19.4", Compiler:"gc", Platform:"linux/amd64"}
You can see the current version here:
https://cluster-api.sigs.k8s.io/user/quick-start.html#install-clusterctl
If your clusterctl is outdated, then upgrade it. See the above URL for details.
Have a look at what could get upgraded:
❯ clusterctl upgrade plan
Checking cert-manager version...
Cert-Manager will be upgraded from "v1.10.1" to "v1.11.0"
Checking new release availability...
Latest release available for the v1beta1 API Version of Cluster API (contract):
NAME NAMESPACE TYPE CURRENT VERSION NEXT VERSION
bootstrap-kubeadm capi-kubeadm-bootstrap-system BootstrapProvider v1.3.2 v1.4.1
control-plane-kubeadm capi-kubeadm-control-plane-system ControlPlaneProvider v1.3.2 v1.4.1
cluster-api capi-system CoreProvider v1.3.2 v1.4.1
infrastructure-hetzner cluster-api-provider-hetzner-system InfrastructureProvider v1.0.0-beta.14 Already up to date
You can now apply the upgrade by executing the following command:
clusterctl upgrade apply --contract v1beta1
Docs: clusterctl upgrade plan
You might be surprised that for infrastructure-hetzner you see "Already up to date".
clusterctl upgrade plan does not display pre-release versions by default.
Use the command, which you saw in the plan:
❯ clusterctl upgrade apply --contract v1beta1
Checking cert-manager version...
Deleting cert-manager Version="v1.10.1"
Installing cert-manager Version="v1.11.0"
Waiting for cert-manager to be available...
Performing upgrade...
Scaling down Provider="cluster-api" Version="v1.3.2" Namespace="capi-system"
Scaling down Provider="bootstrap-kubeadm" Version="v1.3.2" Namespace="capi-kubeadm-bootstrap-system"
Scaling down Provider="control-plane-kubeadm" Version="v1.3.2" Namespace="capi-kubeadm-control-plane-system"
Deleting Provider="cluster-api" Version="v1.3.2" Namespace="capi-system"
Installing Provider="cluster-api" Version="v1.4.1" TargetNamespace="capi-system"
Deleting Provider="bootstrap-kubeadm" Version="v1.3.2" Namespace="capi-kubeadm-bootstrap-system"
Installing Provider="bootstrap-kubeadm" Version="v1.4.1" TargetNamespace="capi-kubeadm-bootstrap-system"
Deleting Provider="control-plane-kubeadm" Version="v1.3.2" Namespace="capi-kubeadm-control-plane-system"
Installing Provider="control-plane-kubeadm" Version="v1.4.1" TargetNamespace="capi-kubeadm-control-plane-system"
Great, cluster-API was upgraded.
You find the latest version of CAPH here:
https://github.com/syself/cluster-api-provider-hetzner/tags
❯ clusterctl upgrade apply --infrastructure cluster-api-provider-hetzner-system/hetzner:v1.0.0-beta.16
Checking cert-manager version...
Cert-manager is already up to date
Performing upgrade...
Scaling down Provider="infrastructure-hetzner" Version="" Namespace="cluster-api-provider-hetzner-system"
Deleting Provider="infrastructure-hetzner" Version="" Namespace="cluster-api-provider-hetzner-system"
Installing Provider="infrastructure-hetzner" Version="v1.0.0-beta.16" TargetNamespace="cluster-api-provider-hetzner-system"
Check the health of your cluster with your preferred tools. For example kubectl.
❯ k get pods -A --sort-by=metadata.creationTimestamp
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system coredns-565d847f94-ppj8z 1/1 Running 685 (33d ago) 79d
kube-system kube-proxy-6p7lt 1/1 Running 2 (33d ago) 79d
kube-system coredns-565d847f94-nrgsk 1/1 Running 686 (33d ago) 79d
kube-system kube-apiserver-host-cluster-control-plane-64j47 1/1 Running 970 (33d ago) 79d
kube-system kube-scheduler-host-cluster-control-plane-64j47 1/1 Running 484 (33d ago) 79d
kube-system kube-controller-manager-host-cluster-control-plane-64j47 1/1 Running 493 (33d ago) 79d
kube-system etcd-host-cluster-control-plane-64j47 1/1 Running 813 (33d ago) 79d
kube-system cilium-operator-6f64975cf7-5489z 1/1 Running 524 (33d ago) 79d
kube-system cilium-qk7v7 1/1 Running 644 (33d ago) 79d
kube-system cilium-operator-6f64975cf7-z9m72 1/1 Running 538 (33d ago) 79d
kube-system ccm-ccm-hcloud-655cf4fdcc-xjszz 1/1 Running 3 (33d ago) 79d
kube-system kube-proxy-hbtnt 1/1 Running 1 (35d ago) 79d
kube-system cilium-gtvfw 1/1 Running 643 (35d ago) 79d
kube-system kube-scheduler-host-cluster-control-plane-t97fn 1/1 Running 492 (33d ago) 79d
kube-system etcd-host-cluster-control-plane-t97fn 1/1 Running 491 (33d ago) 79d
kube-system kube-apiserver-host-cluster-control-plane-t97fn 1/1 Running 560 (33d ago) 79d
kube-system kube-controller-manager-host-cluster-control-plane-t97fn 1/1 Running 492 (33d ago) 79d
kube-system hubble-relay-6676b755f6-l7vcd 1/1 Running 0 33d
kube-system hubble-ui-55f87db549-q4bxb 2/2 Running 0 33d
default netshoot 1/1 Running 2 (21d ago) 21d
kube-system cilium-l8p7s 1/1 Running 0 20d
kube-system kube-proxy-n7pwh 1/1 Running 0 20d
kube-system kube-scheduler-host-cluster-control-plane-2r25q 1/1 Running 0 20d
kube-system etcd-host-cluster-control-plane-2r25q 1/1 Running 0 20d
kube-system kube-apiserver-host-cluster-control-plane-2r25q 1/1 Running 0 20d
kube-system kube-controller-manager-host-cluster-control-plane-2r25q 1/1 Running 0 20d
cert-manager cert-manager-cainjector-ffb4747bb-bt2l7 1/1 Running 0 10m
cert-manager cert-manager-99bb69456-ntvz6 1/1 Running 0 10m
cert-manager cert-manager-webhook-545bd5d7d8-6cxxk 1/1 Running 0 10m
capi-system capi-controller-manager-746b4f5db4-zzbv9 1/1 Running 0 9m17s
capi-kubeadm-bootstrap-system capi-kubeadm-bootstrap-controller-manager-8654485994-tpvkf 1/1 Running 0 9m14s
capi-kubeadm-control-plane-system capi-kubeadm-control-plane-controller-manager-5d9d9494d5-2mqlc 1/1 Running 0 9m11s
cluster-api-provider-hetzner-system caph-controller-manager-566f996fbd-jrqc4 1/1 Running 0 2m30s