apiVersion apps/v1 support for cluster autoscaler (#13960)

Default to the current version (extensions/v1beta1) but allow
overriding it on a release.

Signed-off-by: Ergin Babani <ergin@autonomic.ai>

stable/cluster-autoscaler/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 description: Scales worker nodes within autoscaling groups.
 icon: https://github.com/kubernetes/kubernetes/blob/master/logo/logo.png
 name: cluster-autoscaler
-version: 0.13.1
+version: 0.13.2
 appVersion: 1.13.1
 home: https://github.com/kubernetes/autoscaler
 sources:

stable/cluster-autoscaler/README.md

@@ -139,6 +139,7 @@ Parameter | Description | Default
 `extraEnv` | additional container environment variables | `{}`
 `nodeSelector` | node labels for pod assignment | `{}`
 `podAnnotations` | annotations to add to each pod | `{}`
+`deployment.apiVersion` | apiVersion for the deployment | `extensions/v1beta1`
 `rbac.create` | If true, create & use RBAC resources | `false`
 `rbac.serviceAccountName` | existing ServiceAccount to use (ignored if rbac.create=true) | `default`
 `rbac.pspEnabled` | Must be used with `rbac.create` true. If true, creates & uses RBAC resources required in the cluster with [Pod Security Policies](https://kubernetes.io/docs/concepts/policy/pod-security-policy/) enabled. | `false`

stable/cluster-autoscaler/templates/deployment.yaml

@@ -1,6 +1,6 @@
 {{- if or .Values.autoDiscovery.clusterName .Values.autoscalingGroups }}
 {{/* one of the above is required */}}
-apiVersion: extensions/v1beta1
+apiVersion: {{ .Values.deployment.apiVersion }}
 kind: Deployment
 metadata:
   labels:
@@ -11,6 +11,13 @@ metadata:
   name: {{ template "cluster-autoscaler.fullname" . }}
 spec:
   replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      app: {{ template "cluster-autoscaler.name" . }}
+      release: {{ .Release.Name }}
+    {{- if .Values.podLabels }}
+{{ toYaml .Values.podLabels | indent 8 }}
+    {{- end }}
   template:
     metadata:
     {{- if .Values.podAnnotations }}

stable/cluster-autoscaler/values.yaml

@@ -93,6 +93,9 @@ podAnnotations: {}
 podLabels: {}
 replicaCount: 1
 
+deployment:
+  apiVersion: "extensions/v1beta1"
+
 rbac:
   ## If true, create & use RBAC resources
   ##