Add option to specify imagePullPolicy

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

Author: funkypenguin

charts/docker-mailserver/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: "6.3.0"
 description: A fullstack but simple mailserver (smtp, imap, antispam, antivirus, ssl...) using Docker.
 name: docker-mailserver
-version: 0.2.2-dev2
+version: 0.2.2-dev3
 sources:
 - https://github.com/funkypenguin/docker-mailserver
 maintainers:

charts/docker-mailserver/templates/deployment.yaml

@@ -52,6 +52,7 @@ spec:
       initContainers:
         - name: prep-config
           image: {{ .Values.initContainer.image.name }}:{{ .Values.initContainer.image.tag }}
+          ImagePullPolicy: {{ .Values.initContainer.image.pullPolicy }}
           command: [ 'sh','-c', 'cp /tmp/configmaps/* /tmp/docker-mailserver -rfpvL' ]
           volumeMounts:
             - name: configmap
@@ -66,6 +67,7 @@ spec:
           env:
           {{- include "dockermailserver.upstream-env-variables" . | nindent 10 }}
           image: {{ .Values.image.name }}:{{ .Values.image.tag }}
+          ImagePullPolicy: {{ .Values.image.pullPolicy }}
           resources:
 {{ toYaml .Values.resources | indent 12 }}
           securityContext: