Update the example configuration to use container_label as the preferred
method for discovering the Headscale container. container_name is now
commented out and marked as an optional fallback for static setups.
Update compose.yaml and docs to reflect this change.
Signed-off-by: Georgios Ntoutsos <gntouts@nubificus.co.uk>
This commit adds the ability to filter containers by their labels in the
Docker integration. The new functionality allows users to specify
container labels in the configuration, instead of container names, to
allow for dynamic container name resolution.
This is particularly useful in environments where container names may
change frequently or are not defined in advance.
Fixes#193
Signed-off-by: Georgios Ntoutsos <gntouts@nubificus.co.uk>
