Add security context for etcd-ondemand pod/container

This changes implements runAsUser flag at pod level and readOnly-fs
at container level

Change-Id: I4e54ae4b13c4275f8313efbb733f938ec3580138

charts/etcdctl-utility/templates/bin/utility/_etcd_ondemand_job.sh.tpl

@@ -45,6 +45,7 @@ spec:
       labels:
 {{ tuple $envAll "etcd-ondemand" "ondemand" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
     spec:
+{{ dict "envAll" $envAll "application" "etcd_ondemand" | include "helm-toolkit.snippets.kubernetes_pod_security_context" | indent 6 }}
       restartPolicy: OnFailure
       serviceAccountName: kubernetes-etcd-etcd-backup
       nodeName: ${NODE}
@@ -52,6 +53,7 @@ spec:
         - name: etcd-ondemand
           image: ${ETCD_IMAGE_NAME}
 {{ tuple $envAll $envAll.Values.pod.resources.jobs.etcd_ondemand | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
+{{ dict "envAll" $envAll "application" "etcd_ondemand" "container" "etcd_ondemand" | include "helm-toolkit.snippets.kubernetes_container_security_context" | indent 10 }}
           command:
             - /bin/sleep
             - "1000000"

charts/etcdctl-utility/values.yaml

@@ -46,6 +46,13 @@ pod:
         etcdctl_utility:
           allowPrivilegeEscalation: true
           readOnlyRootFilesystem: false
+    etcd_ondemand:
+      pod:
+        runAsUser: 65534
+      container:
+        etcd_ondemand:
+          allowPrivilegeEscalation: false
+          readOnlyRootFilesystem: true
   mandatory_access_control:
     type: apparmor
     etcdctl-utility: