Goal
As an admin, I want to mirror images referenced by charts in a chart repository to a registry accessible by my cluster, so that I can continue using Helm Charts on clusters that have restricted networks due to my organisations requirements.

In order for Helm Charts to work in disconnected environments, the following should be fulfilled:

• Console config updated to use a chart repository accessible by the disconnected cluster (addressed by APPSVC-385)
• Images that are referenced by those charts are mirrored to an image repository that is accessible by the disconnected cluster
• Charts allow specifying the image registry used for pulling images via values.yaml

Problem
Although admins can change the chart repository used by Console, each chart references others images to deploy the chart application and those images might not be accessible to the cluster.

Why is this important?
Many IBM and OpenShift customers run their clusters in air-gapped environments due to security requirements. These customers need to be able to continue to use Helm Charts for deploying applications to these clusters.