feat(charts): adding external docker_registry support

Author: duanhongyi

charts/database/templates/database-deployment.yaml

@@ -22,7 +22,7 @@ spec:
       serviceAccount: drycc-database
       containers:
         - name: drycc-database
-          image: quay.io/{{.Values.org}}/postgres:{{.Values.docker_tag}}
+          image: {{.Values.docker_registry}}{{.Values.org}}/postgres:{{.Values.docker_tag}}
           imagePullPolicy: {{.Values.pull_policy}}
           ports:
             - containerPort: 5432

charts/database/values.yaml

@@ -1,6 +1,7 @@
 org: "drycc"
 pull_policy: "Always"
-docker_tag: canary
+docker_tag: "canary"
+docker_registry: ""
 # limits_cpu: "100m"
 # limits_memory: "50Mi"
 # The username and password to be used by the on-cluster database.