Memcached securityContext

securityContext with readOnlyRootFilesystem is implemented at container
level and leveraged the helm-toolkit snippet

Change-Id: I8b16e9c17154a2bac162f31939b510fcd773126b

memcached/templates/deployment.yaml

@@ -59,6 +59,7 @@ spec:
         - name: memcached
 {{ tuple $envAll "memcached" | include "helm-toolkit.snippets.image" | indent 10 }}
 {{ tuple $envAll $envAll.Values.pod.resources.server | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
+{{ dict "envAll" $envAll "application" "server" "container" "memcached" | include "helm-toolkit.snippets.kubernetes_container_security_context" | indent 10 }}
           env:
             - name: MEMCACHED_PORT
               value: {{ tuple "oslo_cache" "internal" "memcache" . | include "helm-toolkit.endpoints.endpoint_port_lookup" | quote }}

memcached/templates/monitoring/prometheus/exporter-deployment.yaml

@@ -53,8 +53,7 @@ spec:
           image: {{ .Values.images.tags.prometheus_memcached_exporter }}
           imagePullPolicy: {{ .Values.images.pull_policy }}
 {{ tuple $envAll $envAll.Values.pod.resources.prometheus_memcached_exporter | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
-          securityContext:
-            allowPrivilegeEscalation: false
+{{ dict "envAll" $envAll "application" "memcached_exporter" "container" "memcached_exporter" | include "helm-toolkit.snippets.kubernetes_container_security_context" | indent 10 }}
           command:
             - /tmp/memcached-exporter.sh
             - start

memcached/values.yaml

@@ -144,13 +144,19 @@ manifests:
       service_exporter: true
 
 pod:
-  user:
+  security_context:
     memcached_exporter:
-      uid: 65534
-    server:
-      uid: 65534
-  securityContext:
+      pod:
+        runAsUser: 65534
+      container:
+        memcached_exporter:
+          readOnlyRootFilesystem: true
+          allowPrivilegeEscalation: false
     server:
+      pod:
+        runAsUser: 65534
+      container:
+        memcached:
           readOnlyRootFilesystem: true
   affinity:
     anti: