Implement Security Context for Keystone

Implement container security context for the following Keystone resources:
 - Keystone server deployment

Change-Id: Ia68b5ebe4d76e0405d67224d976fee013cc02d0b

keystone/templates/deployment-api.yaml

@@ -46,8 +46,6 @@ spec:
         configmap-bin-hash: {{ tuple "configmap-bin.yaml" . | include "helm-toolkit.utils.hash" }}
         configmap-etc-hash: {{ tuple "configmap-etc.yaml" . | include "helm-toolkit.utils.hash" }}
     spec:
-      securityContext:
-        readOnlyRootFilesystem: true
 {{ dict "envAll" $envAll "application" "keystone" | include "helm-toolkit.snippets.kubernetes_pod_security_context" | indent 6 }}
       serviceAccountName: {{ $serviceAccountName }}
       affinity:
@@ -61,8 +59,7 @@ spec:
         - name: keystone-api
 {{ tuple $envAll "keystone_api" | include "helm-toolkit.snippets.image" | indent 10 }}
 {{ tuple $envAll $envAll.Values.pod.resources.api | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
-          securityContext:
-            allowPrivilegeEscalation: false
+{{ dict "envAll" $envAll "application" "keystone" "container" "keystone_api" | include "helm-toolkit.snippets.kubernetes_container_security_context" | indent 10 }}
           command:
             - /tmp/keystone-api.sh
             - start

keystone/values.yaml

@@ -152,9 +152,14 @@ dependencies:
           service: local_image_registry
 
 pod:
-  user:
+  security_context:
     keystone:
-      uid: 42424
+      pod:
+        runAsUser: 42424
+      container:
+        keystone_api:
+          readOnlyRootFilesystem: true
+          allowPrivilegeEscalation: false
   affinity:
     anti:
       type: