Default to upstream image (#15)

Resolves #12

Author: tumido

README.md

@@ -20,7 +20,7 @@ This chart bootstraps a [Backstage](https://backstage.io/docs/deployment/docker)
 - Kubernetes 1.19+
 - Helm 3.2.0+
 - PV provisioner support in the underlying infrastructure
-- [Backstage container image](https://backstage.io/docs/deployment/docker)
+- [Backstage container image](https://backstage.io/docs/deployment/docker) (by default this chart deploys vanilla upstream image without any modifications, users are encouraged to supply their own image)
 
 ## Installing the Chart
 
@@ -72,9 +72,9 @@ The command removes all the Kubernetes components associated with the chart and
 
 | Name                            | Description                                                          | Value                                                                       |
 | ------------------------------- | -------------------------------------------------------------------- | --------------------------------------------------------------------------- |
-| `backstage.image.registry`      | Backstage image registry                                             | `""`                                                                        |
-| `backstage.image.repository`    | Backstage image repository (required)                                | `""`                                                                        |
-| `backstage.image.tag`           | Backstage image tag (required immutable tags are recommended)        | `""`                                                                        |
+| `backstage.image.registry`      | Backstage image registry                                             | `ghcr.io`                                                                   |
+| `backstage.image.repository`    | Backstage image repository (required)                                | `backstage/backstage`                                                       |
+| `backstage.image.tag`           | Backstage image tag (required immutable tags are recommended)        | `latest`                                                                    |
 | `backstage.image.pullPolicy`    | Backstage image pull policy                                          | `IfNotPresent`                                                              |
 | `backstage.image.pullSecrets`   | Specify docker-registry secret names as an array                     | `[]`                                                                        |
 | `backstage.command`             | Override Backstage container command                                 | `["node", "packages/backend"]`                                              |

charts/backstage/Chart.yaml

@@ -15,7 +15,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.5.2
+version: 0.5.3
 
 dependencies:
   - name: common

charts/backstage/ci/ci-values.yaml

@@ -1,5 +0,0 @@
-backstage:
-  image:
-    registry: ghcr.io
-    repository: janus-idp/redhat-backstage-build
-    tag: latest

charts/backstage/values.yaml

@@ -86,9 +86,9 @@ ingress:
 
 backstage:
   image:
-    registry: ""
-    repository: ""
-    tag: ""
+    registry: ghcr.io
+    repository: backstage/backstage
+    tag: latest
     ## Specify a imagePullPolicy
     ## Defaults to 'Always' if image tag is 'latest', else set to 'IfNotPresent'
     ## ref: https://kubernetes.io/docs/user-guide/images/#pre-pulling-images