feat(helm): support imagePullSecrets (#907)

Add additional `imagePullSecrets` to the deployment or daemonset via the
value `image.pullSecrets`.

Requested in #874

Author: lukasmetzner

chart/templates/daemonset.yaml

@@ -21,6 +21,10 @@ spec:
         {{- toYaml .Values.podAnnotations | nindent 8 }}
       {{- end }}
     spec:
+    {{- with .Values.image.pullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
       serviceAccountName: {{ include "hcloud-cloud-controller-manager.name" . }}
       dnsPolicy: Default
       tolerations:

chart/templates/deployment.yaml

@@ -22,6 +22,10 @@ spec:
         {{- toYaml .Values.podAnnotations | nindent 8 }}
       {{- end }}
     spec:
+    {{- with .Values.image.pullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
       serviceAccountName: {{ include "hcloud-cloud-controller-manager.name" . }}
       dnsPolicy: Default
       tolerations:

chart/values.yaml

@@ -61,6 +61,14 @@ env:
 image:
   repository: docker.io/hetznercloud/hcloud-cloud-controller-manager
   tag: "v{{ $.Chart.Version }}"
+  # Optionally specify an array of imagePullSecrets.
+  # Secrets must be manually created in the namespace.
+  # ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
+  # e.g:
+  # pullSecrets:
+  #   - myRegistryKeySecretName
+  #
+  pullSecrets: []
 
 monitoring:
   # When enabled, the hccm Pod will serve metrics on port :8233