Deploying applications with custom resources in private registries

[kelkawi-a]

Requirements

With the recent changes introduced in #493 for deploying applications with custom resources, we would like to request for the Juju Terraform provider to support the ability to deploy applications with custom resources from private registries. This is feasible in Juju by pointing it to a registryconfig.yaml file as below:

registrypath: ...
username: ...
password: ...

juju deploy <charm_name> --resource <resource_name>=./registryconfig.yaml

This will allow us implement our CI/CD pipeline for deploying charms with custom resources from private registries.

Note: Uploading these resources to Charmhub is not an option, because this specific charm is designed in a way where users define their own images and deploy the charm with these images.

Urgency

It would save from a weird workaround

Notes & References

No response