Allow for custom webhook container command and port

charts/external-dns/CHANGELOG.md

@@ -18,6 +18,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [UNRELEASED]
 
+### Added
+
+- Added support for webhook container custom `command` and container `port`. ([#4755](https://github.com/kubernetes-sigs/external-dns/pull/4755))
+
 ## [v1.15.0] - 2023-09-10
 
 ### Changed

charts/external-dns/README.md

@@ -124,12 +124,14 @@ If `namespaced` is set to `true`, please ensure that `sources` my only contains
 | priorityClassName | string | `nil` | Priority class name for the `Pod`. |
 | provider.name | string | `"aws"` | _ExternalDNS_ provider name; for the available providers and how to configure them see [README](https://github.com/kubernetes-sigs/external-dns/blob/master/charts/external-dns/README.md#providers). |
 | provider.webhook.args | list | `[]` | Extra arguments to provide for the `webhook` container. |
+| provider.webhook.command | list | `[]` | Override command for the `webhook` container. |
 | provider.webhook.env | list | `[]` | [Environment variables](https://kubernetes.io/docs/tasks/inject-data-application/define-environment-variable-container/) for the `webhook` container. |
 | provider.webhook.extraVolumeMounts | list | `[]` | Extra [volume mounts](https://kubernetes.io/docs/concepts/storage/volumes/) for the `webhook` container. |
 | provider.webhook.image.pullPolicy | string | `"IfNotPresent"` | Image pull policy for the `webhook` container. |
 | provider.webhook.image.repository | string | `nil` | Image repository for the `webhook` container. |
 | provider.webhook.image.tag | string | `nil` | Image tag for the `webhook` container. |
 | provider.webhook.livenessProbe | object | See _values.yaml_ | [Liveness probe](https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/) configuration for the `external-dns` container. |
+| provider.webhook.port | int | `8080` | Internal port for the `webhook` container. |
 | provider.webhook.readinessProbe | object | See _values.yaml_ | [Readiness probe](https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/) configuration for the `webhook` container. |
 | provider.webhook.resources | object | `{}` | [Resources](https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/) for the `webhook` container. |
 | provider.webhook.securityContext | object | See _values.yaml_ | [Pod security context](https://kubernetes.io/docs/tasks/configure-pod-container/security-context/#set-the-security-context-for-a-container) for the `webhook` container. |

charts/external-dns/templates/deployment.yaml

@@ -152,14 +152,18 @@ spec:
           env:
             {{- toYaml . | nindent 12 }}
           {{- end }}
+          {{- with .command }}
+          command:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
           {{- with .args }}
           args:
             {{- toYaml . | nindent 12 }}
           {{- end }}
           ports:
             - name: http-webhook
               protocol: TCP
-              containerPort: 8080
+              containerPort: {{ .port }}
           livenessProbe:
             {{- toYaml .livenessProbe | nindent 12 }}
           readinessProbe:

charts/external-dns/values.yaml

@@ -238,6 +238,8 @@ provider:
       pullPolicy: IfNotPresent
     # -- [Environment variables](https://kubernetes.io/docs/tasks/inject-data-application/define-environment-variable-container/) for the `webhook` container.
     env: []
+    # -- Override command for the `webhook` container.
+    command: []
     # -- Extra arguments to provide for the `webhook` container.
     args: []
     # -- Extra [volume mounts](https://kubernetes.io/docs/concepts/storage/volumes/) for the `webhook` container.
@@ -269,6 +271,8 @@ provider:
       timeoutSeconds: 5
       failureThreshold: 6
       successThreshold: 1
+    # -- Internal port for the `webhook` container.
+    port: 8080
     service:
       # -- Webhook exposed HTTP port for the service.
       port: 8080