allow specifying the scheduler container entrypoint in the helm chart

Author: chotiwat

manifests/install/charts/as-a-second-scheduler/README.md

@@ -45,9 +45,10 @@ scheduler-plugins-scheduler    1/1     1            1           7s
 The following table lists the configurable parameters of the as-a-second-scheduler chart and their default values.
 
 | Parameter                 | Description                 | Default                                                                                         |
-|---------------------------|-----------------------------|-------------------------------------------------------------------------------------------------|
+| ------------------------- | --------------------------- | ----------------------------------------------------------------------------------------------- |
 | `scheduler.name`          | Scheduler name              | `scheduler-plugins-scheduler`                                                                   |
 | `scheduler.image`         | Scheduler image             | `registry.k8s.io/scheduler-plugins/kube-scheduler:v0.29.7`                                      |
+| `scheduler.command`       | Scheduler command           | `["/bin/kube-scheduler"]`                                                                       |
 | `scheduler.leaderElect`   | Scheduler leaderElection    | `false`                                                                                         |
 | `scheduler.replicaCount`  | Scheduler replicaCount      | `1`                                                                                             |
 | `scheduler.nodeSelector`  | Scheduler nodeSelector      | `{}`                                                                                            |

manifests/install/charts/as-a-second-scheduler/templates/deployment.yaml

@@ -50,7 +50,8 @@ spec:
     spec:
       serviceAccountName: {{ .Values.scheduler.name }}
       containers:
-      - args:
+      - command: {{- toYaml .Values.scheduler.command | nindent 8 }}
+        args:
         - --config=/etc/kubernetes/scheduler-config.yaml
         image: {{ .Values.scheduler.image }}
         imagePullPolicy: IfNotPresent

manifests/install/charts/as-a-second-scheduler/values.yaml

@@ -5,6 +5,8 @@
 scheduler:
   name: scheduler-plugins-scheduler
   image: registry.k8s.io/scheduler-plugins/kube-scheduler:v0.29.7
+  command:
+  - /bin/kube-scheduler
   replicaCount: 1
   leaderElect: false
   nodeSelector: {}