Use images from private registries

We have introduced the option to execute quantum routines using images from private registries. To be able to use images from private registries, you need to authenticate with the registry. This can be done by creating a personal access token (PAT) and using it to authenticate with the registry.

The PAT can be passed to the q8sctl execute command using the --registry-pat flag:

q8sctl execute \
    --registry-pat PAT \
    --kubeconfig path-to-kubeconfig \
    --image image-name \
    program.py

or to Jupyter Lab as an environment variable REGISTRY_PAT:

REGISTRY_PAT=PAT jupyter lab