apptainer-registry — Manage authentication to OCI/Docker registries. See also: `apptainer pull`, `apptainer push`.
# source: tldr · verified

Examples:
  # List all configured registry credentials [GNU]
    $ apptainer registry list
  # Log in to a registry with a username (password will be prompted) [GNU]
    $ apptainer registry login [-u|--username] username docker://registry
  # Log in to a custom OCI registry [GNU]
    $ apptainer registry login [-u|--username] username oras://registry

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