[stable/docker-registry] Add pod annotations and checksum for configmap to deployment (#5080)

* Add pod annotations and checksum for configmap to deployment

The will allow us to annotate the pod as necessicary and will restart the Deployemnt on ConfigMap changes

* Fix path in configmap checksu annotation

* Use Template.basePath to find ConfigMap

Using print $.Chart.Name "/templates/configmap.yaml" does not work when this is used as a subchart

* Add podAnnotations to README

stable/docker-registry/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 description: A Helm chart for Docker Registry
 name: docker-registry
-version: 1.1.3
+version: 1.2.0
 appVersion: 2.6.2
 home: https://hub.docker.com/_/registry/
 icon: https://hub.docker.com/public/images/logos/mini-logo.svg

stable/docker-registry/README.md

@@ -40,6 +40,7 @@ their default values.
 | `service.nodePort`          | if `service.type` is `NodePort` and this is non-empty, sets the node port of the service | `nil`           |
 | `replicaCount`              | k8s replicas                                                                             | `1`             |
 | `updateStrategy`            | update strategy for deployment                                                           | `{}`            |
+| `podAnnotations`            | Annotations for pod                                                                      | `{}`            |
 | `resources.limits.cpu`      | Container requested CPU                                                                  | `nil`           |
 | `resources.limits.memory`   | Container requested memory                                                               | `nil`           |
 | `storage`                   | Storage system to use                                                                    | `filesystem`    |

stable/docker-registry/templates/deployment.yaml

@@ -19,6 +19,11 @@ spec:
       labels:
         app: {{ template "docker-registry.name" . }}
         release: {{ .Release.Name }}
+      annotations:
+        checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
+{{- if $.Values.podAnnotations }}
+{{ toYaml $.Values.podAnnotations | indent 8 }}
+{{- end }}
     spec:
       containers:
         - name: {{ .Chart.Name }}

stable/docker-registry/values.yaml

@@ -9,6 +9,8 @@ updateStrategy:
   #   maxSurge: 1
   #   maxUnavailable: 0
 
+podAnnotations: {}
+
 image:
   repository: registry
   tag: 2.6.2