Adds support to 3 environment variables:
- WAREWULF_OCI_USERNAME: registry user username
- WAREWULF_OCI_PASSWORD: registry user password
- WAREWULF_OCI_NOHTTPS: disable tls requirements (for local registries)
Note:
This will default to ~/.docker/config.json for credentials and other docker
configurations on the system when no options are specified.
db28555165