Missing pod annotation and security constraint in helm chart (#356)

Add option to add pod annotation and pod security constraint
in helm charts

Change-Id: I1fc7d7d2ca60411439669921fb6a353bb001225a

Co-authored-by: Olivier Germain <[email protected]>

Author: germaino

chart/docker-auth/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 appVersion: "1.8.0"
 description: Docker Registry V2 authentication server
 name: docker-auth
-version: 1.3.0
+version: 1.4.0
 keywords:
 - docker
 - registry

chart/docker-auth/templates/deployment.yaml

@@ -20,10 +20,27 @@ spec:
         app.kubernetes.io/instance: {{ .Release.Name }}
       annotations:
         checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}        
+    {{- if .Values.podAnnotations }}
+      {{- range $key, $value := .Values.podAnnotations }}
+        {{ $key }}: {{ $value | quote }}
+      {{- end }}
+    {{- end }}
     spec:
+  {{- if .Values.podSecurityContext }}
+    {{- with .Values.podSecurityContext }}
+      securityContext:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+  {{- end }}
       containers:
         - name: {{ .Chart.Name }}
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+      {{- if .Values.containerSecurityContext }}
+        {{- with .Values.containerSecurityContext }}
+          securityContext:
+            {{- toYaml . | nindent 12 }}
+        {{- end }}
+      {{- end }}
           args: ["--v={{ .Values.logging.level }}", "-logtostderr", "/config/auth_config.yml"]
           volumeMounts:
           - name: {{ include "docker-auth.name" . }}-config

chart/docker-auth/values.yaml

@@ -78,3 +78,13 @@ nodeSelector: {}
 tolerations: []
 
 affinity: {}
+
+# podAnnotations to use for the deployment. Optional
+podAnnotations: {}
+
+# SecurityContext at container level to use for the deployment. Optional
+containerSecurityContext: {}
+
+# SecurityContext at pod level to use for the deployment. Optional
+podSecurityContext: {}
+