Improved the template and added the parameter in the README

Author: pierluigilenoci

helm/oauth2-proxy/README.md

@@ -147,6 +147,7 @@ The following table lists the configurable parameters of the oauth2-proxy chart
 | `htpasswdFile.existingSecret`                         | existing Kubernetes secret to use for OAuth2 htpasswd file                                                                                                                                                                                                       | `""`                                                                             |
 | `httpScheme`                                          | `http` or `https`. `name` used for the port on the deployment. `httpGet` port `name` and `scheme` used for `liveness`- and `readinessProbes`. `name` and `targetPort` used for the service.                                                                      | `http`                                                                           |
 | `image.pullPolicy`                                    | Image pull policy                                                                                                                                                                                                                                                | `IfNotPresent`                                                                   |
+| `image.command`                                       | Define command to be executed by grafana container at startup                                                                                                                                                                                                    | `[]`                                                                             |
 | `image.repository`                                    | Image repository                                                                                                                                                                                                                                                 | `quay.io/oauth2-proxy/oauth2-proxy`                                              |
 | `image.tag`                                           | Image tag                                                                                                                                                                                                                                                        | `""` (defaults to appVersion)                                                    |
 | `imagePullSecrets`                                    | Specify image pull secrets                                                                                                                                                                                                                                       | `nil` (does not add image pull secrets to deployed pods)                         |

helm/oauth2-proxy/templates/deployment.yaml

@@ -105,7 +105,10 @@ spec:
         image: "{{ .Values.image.repository }}:{{ include "oauth2-proxy.version" . }}"
         imagePullPolicy: {{ .Values.image.pullPolicy }}
         {{- if .Values.image.command }}
-        command: {{ .Values.image.command | toYaml }}
+        command:
+          {{- range .Values.image.command }}
+          - {{ . | quote }}
+          {{- end }}
         {{- end }}
         args:
         {{- if .Values.alphaConfig.enabled }}