elementary/docker:stable: This defaults to the latest stable elementary release.
elementary/docker:unstable: This defaults to the latest unstable elementary release.
elementary/docker:<release>-stable and elementary/docker:<release>-unstable: These tags can
be used to specify an exact version of elementary. For example, for a loki image: elementary/docker:loki-stable
# run the latest stable release in an interactive shell!
docker run -it elementary/docker bash -l