support image registries with authentication

Based on spec in openstack-helm repo,
support-OCI-image-registry-with-authentication-turned-on.rst

Each Helm chart can configure an OCI image registry and
credentials to use. A Kubernetes secret is then created with these
info. Service Accounts then specify an imagePullSecret specifying
the Secret with creds for the registry. Then any pod using one
of these ServiceAccounts may pull images from an authenticated
container registry.

Change-Id: Iebda4c7a861aa13db921328776b20c14ba346269

powerdns/Chart.yaml

@@ -15,7 +15,7 @@ apiVersion: v1
 appVersion: v4.1.10
 description: OpenStack-Helm PowerDNS
 name: powerdns
-version: 0.1.5
+version: 0.1.6
 home: https://www.powerdns.com/
 maintainers:
   - name: OpenStack-Helm Authors

powerdns/templates/secret-registry.yaml

@@ -0,0 +1,17 @@
+{{/*
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/}}
+
+{{- if and .Values.manifests.secret_registry .Values.endpoints.oci_image_registry.auth.enabled }}
+{{ include "helm-toolkit.manifests.secret_registry" ( dict "envAll" . "registryUser" .Chart.Name ) }}
+{{- end }}

powerdns/values.yaml

@@ -135,6 +135,21 @@ endpoints:
     port:
       registry:
         node: 5000
+  oci_image_registry:
+    name: oci-image-registry
+    namespace: oci-image-registry
+    auth:
+      enabled: false
+      powerdns:
+        username: powerdns
+        password: password
+    hosts:
+      default: localhost
+    host_fqdn_override:
+      default: null
+    port:
+      registry:
+        default: null
   powerdns:
     auth:
       service:
@@ -170,6 +185,8 @@ endpoints:
         default: 3306
 
 secrets:
+  oci_image_registry:
+    powerdns: powerdns-oci-image-registry-key
   oslo_db:
     admin: powerdns-db-admin
     powerdns: powerdns-db-user
@@ -199,6 +216,7 @@ manifests:
   job_db_init: true
   job_db_sync: true
   secret_db: true
+  secret_registry: true
   service_dns: true
   service_api: false
 ...