Modify incorrect format of Cinder policy file

Cinder default format of policy file is changed from
"json" to "yaml" in stein. This patch set modifies
Cinder chart templates to load policies in yaml format.

Change-Id: I28f3d5be6609cd28bbc1ce8e5fc1d1cf4730b760

cinder/templates/configmap-etc.yaml

@@ -115,7 +115,7 @@ data:
   logging.conf: {{ include "helm-toolkit.utils.to_oslo_conf" .Values.conf.logging | b64enc }}
   backends.conf: {{ include "helm-toolkit.utils.to_ini" .Values.conf.backends | b64enc }}
   api-paste.ini: {{ include "helm-toolkit.utils.to_ini" .Values.conf.paste | b64enc }}
-  policy.json: {{ toJson .Values.conf.policy | b64enc }}
+  policy.yaml: {{ toYaml .Values.conf.policy | b64enc }}
   api_audit_map.conf: {{ include "helm-toolkit.utils.to_oslo_conf" .Values.conf.api_audit_map | b64enc }}
   cinder_sudoers: {{ $envAll.Values.conf.cinder_sudoers | b64enc }}
   rootwrap.conf: {{ $envAll.Values.conf.rootwrap | b64enc }}

cinder/templates/deployment-api.yaml

@@ -120,8 +120,8 @@ spec:
               subPath: api-paste.ini
               readOnly: true
             - name: cinder-etc
-              mountPath: /etc/cinder/policy.json
-              subPath: policy.json
+              mountPath: /etc/cinder/policy.yaml
+              subPath: policy.yaml
               readOnly: true
             - name: cinder-etc
               mountPath: /etc/cinder/api_audit_map.conf

cinder/templates/deployment-scheduler.yaml

@@ -98,8 +98,8 @@ spec:
               subPath: api-paste.ini
               readOnly: true
             - name: cinder-etc
-              mountPath: /etc/cinder/policy.json
-              subPath: policy.json
+              mountPath: /etc/cinder/policy.yaml
+              subPath: policy.yaml
               readOnly: true
             {{- if eq ( split "://" .Values.conf.cinder.coordination.backend_url )._0 "file" }}
             - name: cinder-coordination

cinder/values.yaml

@@ -856,6 +856,8 @@ conf:
     keystone_authtoken:
       auth_version: v3
       auth_type: password
+    oslo_policy:
+      policy_file: /etc/cinder/policy.yaml
     oslo_concurrency:
       lock_path: "/var/lib/cinder/tmp"
     oslo_messaging_notifications: