Added in code to allow control over pull policy for local path provis… (#5334)

* Added in code to allow control over pull policy for local path provisioner

* change to imagePullPolicy to use globally used variable k8s_image_pull_policy

* removed unusued variable from defaults

* updated contiv-etcd and cinder-csi-controllerplugin to use k8s_image_pull_policy variable

roles/kubernetes-apps/csi_driver/cinder/templates/cinder-csi-controllerplugin.yml.j2

@@ -49,7 +49,7 @@ spec:
           env:
             - name: ADDRESS
               value: /var/lib/csi/sockets/pluginproxy/csi.sock
-          imagePullPolicy: Always
+          imagePullPolicy: {{ k8s_image_pull_policy }}
           volumeMounts:
             - mountPath: /var/lib/csi/sockets/pluginproxy/
               name: socket-dir

roles/kubernetes-apps/external_provisioner/local_path_provisioner/templates/local-path-storage-deployment.yml.j2

@@ -18,7 +18,7 @@ spec:
       containers:
       - name: local-path-provisioner
         image: {{ local_path_provisioner_image_repo }}:{{ local_path_provisioner_image_tag }}
-        imagePullPolicy: Always
+        imagePullPolicy: {{ k8s_image_pull_policy }}
         command:
         - local-path-provisioner
         - start

roles/network_plugin/contiv/templates/contiv-etcd.yml.j2

@@ -29,7 +29,7 @@ spec:
       initContainers:
         - name: contiv-etcd-init
           image: {{ contiv_etcd_init_image_repo }}:{{ contiv_etcd_init_image_tag }}
-          imagePullPolicy: Always
+          imagePullPolicy: {{ k8s_image_pull_policy }}
           env:
             - name: ETCD_INIT_ARGSFILE
               value: '{{ contiv_etcd_conf_dir }}/contiv-etcd-args'