metrics-server: Update to 0.3.6

* Release Notes:
https://github.com/kubernetes-sigs/metrics-server/releases/tag/v0.3.6

* Following commands were used to update the configs:

```
cd assets/components
rm -rf metrics-server
helm fetch --untar --untardir ./ stable/metrics-server
```

Signed-off-by: Suraj Deshmukh <suraj@kinvolk.io>

assets/components/metrics-server/Chart.yaml

@@ -1,5 +1,5 @@
 apiVersion: v1
-appVersion: 0.3.5
+appVersion: 0.3.6
 description: Metrics Server is a cluster-wide aggregator of resource usage data.
 home: https://github.com/kubernetes-incubator/metrics-server
 keywords:
@@ -12,4 +12,4 @@ maintainers:
 name: metrics-server
 sources:
 - https://github.com/kubernetes-incubator/metrics-server
-version: 2.8.8
+version: 2.11.1

assets/components/metrics-server/README.md

@@ -12,7 +12,7 @@ Parameter | Description | Default
 `serviceAccount.name` | Service account to be used. If not set and `serviceAccount.create` is `true`, a name is generated using the fullname template | ``
 `apiService.create` | Create the v1beta1.metrics.k8s.io API service | `true`
 `hostNetwork.enabled` | Enable hostNetwork mode | `false`
-`image.repository` | Image repository | `gcr.io/google_containers/metrics-server-amd64`
+`image.repository` | Image repository | `k8s.gcr.io/metrics-server-amd64`
 `image.tag` | Image tag | `v0.3.2`
 `image.pullPolicy` | Image pull policy | `IfNotPresent`
 `imagePullSecrets` | Image pull secrets | `[]`
@@ -25,6 +25,7 @@ Parameter | Description | Default
 `extraVolumeMounts` | Ability to provide volume mounts to the pod | `[]`
 `extraVolumes` | Ability to provide volumes to the pod | `[]`
 `livenessProbe` | Container liveness probe | See values.yaml
+`podLabels` | Labels to be added to pods | `{}`
 `podAnnotations` | Annotations to be added to pods | `{}`
 `priorityClassName` | Pod priority class | `""`
 `readinessProbe` | Container readiness probe | See values.yaml
@@ -35,3 +36,4 @@ Parameter | Description | Default
 `podDisruptionBudget.enabled` | Create a PodDisruptionBudget | `false`
 `podDisruptionBudget.minAvailable` | Minimum available instances; ignored if there is no PodDisruptionBudget |
 `podDisruptionBudget.maxUnavailable` | Maximum unavailable instances; ignored if there is no PodDisruptionBudget |
+`extraContainers`   | Add additional containers  | `[]`

assets/components/metrics-server/templates/auth-delegator-crb.yaml

@@ -3,7 +3,6 @@ apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
   name: {{ template "metrics-server.fullname" . }}:system:auth-delegator
-  namespace: kube-system
   labels:
     app: {{ template "metrics-server.name" . }}
     chart: {{ template "metrics-server.chart" . }}

assets/components/metrics-server/templates/cluster-role.yaml

@@ -23,6 +23,7 @@ rules:
   {{- if .Values.rbac.pspEnabled }}
   - apiGroups:
     - extensions
+    - policy
     resources:
     - podsecuritypolicies
     resourceNames:

assets/components/metrics-server/templates/metrics-server-deployment.yaml

@@ -19,6 +19,9 @@ spec:
       labels:
         app: {{ template "metrics-server.name" . }}
         release: {{ .Release.Name }}
+        {{- if .Values.podLabels }}
+{{ toYaml .Values.podLabels | indent 8 }}
+        {{- end }}
       {{- with .Values.podAnnotations }}
       annotations:
       {{- range $key, $value := . }}
@@ -40,6 +43,9 @@ spec:
       hostNetwork: true
 {{- end }}
       containers:
+        {{- if .Values.extraContainers }}
+        {{- ( tpl (toYaml .Values.extraContainers) . ) | nindent 8 }}
+        {{- end }}
         - name: metrics-server
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}

assets/components/metrics-server/templates/role-binding.yaml

@@ -1,5 +1,5 @@
 {{- if .Values.rbac.create -}}
-apiVersion: rbac.authorization.k8s.io/v1beta1
+apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
 metadata:
   name: {{ template "metrics-server.fullname" .  }}-auth-reader

assets/components/metrics-server/templates/tests/test-version.yaml

@@ -2,7 +2,6 @@ apiVersion: v1
 kind: Pod
 metadata:
   name: {{ template "metrics-server.fullname" . }}-test
-  namespace: {{ .Release.Namespace }}
   labels:
     app: {{ template "metrics-server.name" . }}
     chart: {{ template "metrics-server.chart" . }}

assets/components/metrics-server/values.yaml

@@ -27,8 +27,8 @@ hostNetwork:
   enabled: false
 
 image:
-  repository: gcr.io/google_containers/metrics-server-amd64
-  tag: v0.3.5
+  repository: k8s.gcr.io/metrics-server-amd64
+  tag: v0.3.6
   pullPolicy: IfNotPresent
 
 imagePullSecrets: []
@@ -48,11 +48,17 @@ affinity: {}
 
 replicas: 1
 
+extraContainers: []
+
+podLabels: {}
+
 podAnnotations: {}
 #  The following annotations guarantee scheduling for critical add-on pods.
 #    See more at: https://kubernetes.io/docs/tasks/administer-cluster/guaranteed-scheduling-critical-addon-pods/
 #  scheduler.alpha.kubernetes.io/critical-pod: ''
-#  priorityClassName: system-node-critical
+
+## Set a pod priorityClassName
+# priorityClassName: system-node-critical
 
 extraVolumeMounts: []
 #  - name: secrets