enable cmd and args override in the statefulset (#366)

* enable cmd and args override in the statefulset

* update README

Author: ArshamTeymouri

charts/common/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: common
 description: A generic helm chart for Kubernetes
 type: application
-version: 0.9.0
+version: 0.10.0
 maintainers:
   - name: Parity
     url: https://github.com/paritytech/helm-charts

charts/common/README.md

@@ -57,7 +57,7 @@ This is intended behaviour. Make sure to run `git add -A` once again to stage ch
 | nameOverride | string | `""` | Provide a name in place of node for `app:` labels |
 | namespaceOverride | string | `""` | Provide a name to substitute for the full names of resources |
 | nodeSelector | object | `{}` | Define which Nodes the Pods are scheduled on. |
-| persistence | object | `{"accessModes":["ReadWriteOnce"],"annotations":{},"enabled":false,"size":"50Gi"}` | If enabled, creates a PVC and deploy the pod as statefulset |
+| persistence | object | `{"accessModes":["ReadWriteOnce"],"annotations":{},"enabled":false,"size":"50Gi"}` | If enabled, creates a PVC and mounts it on /data and deploys the pod as statefulset |
 | persistence.accessModes | list | `["ReadWriteOnce"]` | PVC access mode |
 | persistence.annotations | object | `{}` | Annotations to add to the PVC |
 | persistence.enabled | bool | `false` | Enable PVC creation |

charts/common/templates/statefulset.yaml

@@ -49,6 +49,12 @@ spec:
             {{- toYaml .Values.containerSecurityContext | nindent 12 }}
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}
+          {{- with .Values.command }}
+          command: {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- with .Values.args }}
+          args: {{- toYaml . | nindent 12 }}
+          {{- end }}
           ports:
           {{- range $keys := .Values.service.ports }}
             - name: {{ .name }}

charts/common/values.yaml

@@ -214,7 +214,7 @@ startupProbe: {}
 stateful:
   annotations: {}
 
-# -- If enabled, creates a PVC and deploy the pod as statefulset
+# -- If enabled, creates a PVC and mounts it on /data and deploys the pod as statefulset
 persistence:
   # -- Enable PVC creation
   enabled: false