[stable/metrics-server] Metrics server command arguments (#6620)

* stable/metrics-server: Make metrics-server arguments customizable

* stable/metrics-server: Bump version. As this chart is in stable, we might as well start with 1.0.0 now

* stable/metrics-server: Changing version from 1.0.0 to 0.1.0 as per review comment

stable/metrics-server/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: 0.2.1
 description: Metrics Server is a cluster-wide aggregator of resource usage data.
 name: metrics-server
-version: 1.0.2
+version: 1.1.0
 keywords:
 - metrics-server
 home: https://github.com/kubernetes-incubator/metrics-server

stable/metrics-server/README.md

@@ -13,6 +13,7 @@ Parameter | Description | Default
 `image.repository` | Image repository | `gcr.io/google_containers/metrics-server-amd64`
 `image.tag` | Image tag | `v0.2.1`
 `image.pullPolicy` | Image pull policy | `IfNotPresent`
+`args` | Command line arguments | --source=kubernetes.summary_api:''
 `resources` | CPU/Memory resource requests/limits. | `{}`
 `tolerations` | List of node taints to tolerate (requires Kubernetes >=1.6) | `[]`
 `nodeSelector` | Node labels for pod assignment | `{}`

stable/metrics-server/templates/metrics-server-deployment.yaml

@@ -25,7 +25,9 @@ spec:
           imagePullPolicy: {{ .Values.image.pullPolicy }}
           command:
             - /metrics-server
-            - --source=kubernetes.summary_api:''
+            {{- range .Values.args }}
+            - {{ . | quote }}
+            {{- end }}
         {{- with .Values.resources }}
           resources:
 {{ toYaml . | indent 12 }}

stable/metrics-server/values.yaml

@@ -22,6 +22,9 @@ image:
   tag: v0.2.1
   pullPolicy: IfNotPresent
 
+args:
+  - --source=kubernetes.summary_api:''
+
 resources: {}
 
 nodeSelector: {}