These rules used to be docker_build, docker_push, etc. and the aliases for these (mostly) legacy names still exist largely for backwards-compatibility. We also have early-stage oci_image, oci_push, etc. aliases for folks that enjoy the consistency of a consistent rule prefix. The only place the format-specific names currently do any more than alias things is in foo_push, where they also specify the appropriate format as which to publish the image.Also, unlike traditional container builds (e.g. Dockerfile), the Docker images produced by container_image are deterministic / reproducible.