Story

As an admin, I want to be able to configure containers to mount PVCs to.

Background

Example: for now dynamic plugins directory is configured as a part of default-config/deployment.yaml declaring the Volume like

- ephemeral:
    volumeClaimTemplate:
      spec:
        accessModes:
          - ReadWriteOnce
        resources:
          requests:
            storage: 2Gi
  name: dynamic-plugins-root 

As we have ability to describe it as part of pvcs.yaml, it can be implemented more flexible with declaring it and then it will be mount to specific directory to Backstage container and Init-Dynamic-Plugins initContainer by operator

Proposal is to add the annotation like rhdh.redhat.com/containers
with rules like:

• if  not specified mounted to backstage container (backstage-backend) only 
• if == "*" - mounted to all the containers in deployment
• if comma separated list like "backstage-backend,install-dynamic-plugins" mounted to specified containters

  Dependencies and Blockers

QE impacted work

Documentation impacted work

Acceptance Criteria

• tests added
• upstream documentation updated
• demo added