https://docs.docker.com/engine/reference/commandline/images/
$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE <none> <none> 77af4d6b9913 19 hours ago 1.089 GB committ latest b6fa739cedf5 19 hours ago 1.089 GB <none> <none> 78a85c484f71 19 hours ago 1.089 GB docker latest 30557a29d5ab 20 hours ago 1.089 GB <none> <none> 5ed6274db6ce 24 hours ago 1.089 GB postgres 9 746b819f315e 4 days ago 213.4 MB postgres 9.3 746b819f315e 4 days ago 213.4 MB postgres 9.3.5 746b819f315e 4 days ago 213.4 MB postgres latest 746b819f315e 4 days ago 213.4 MB
Notes:
- IMAGE ID column is the first 12 characters of the identifier for an image. You can create many tags of a given image (
docker tag[1]), but their IDs will all be the same, as example above.
- REPOSITORY column comes from the -t flag of the docker build command, or from docker tag-ing an existing image. You can tag images using your prefered nomenclature, but docker will use the tag as the registry location when using
docker pushordocker pull