The Compose Specification supports adding labels to the build image
which is also used in practice. Support this and pass the labels to
`podman build`.
Signed-off-by: Sebastian Wick <sebastian.wick@redhat.com>
docker-compose uses the path to the compose file even if it's symlink to
get the context directory.
Signed-off-by: Povilas Kanapickas <povilas@radix.lt>