List

List images.

$ docker image ls

Or

$ docker images

Filter by name.

$ docker image ls my-app

Build

Create a container from an image.

Give the image a name with -t flag. If you don’t do this, then a random name will be used and then it is harder to use docker run as you then have to lookup a name.

$ docker build -t my-app .

Ignore cache.

$ docker build -t my-app . --no-cache

Pull

Download an Docker image from a container registry. See docs.

$ docker image pull REFERENCE

Get the latest image:

$ docker image pull foo/bar

Get a named image such as with a release tag or branch name.

$ docker image pull foo.com/bar@v1.2.3
$ docker image pull ubuntu@lunar
$ docker image pull ubuntu@23.04

Use --all-tags or -a to download all tags in the image repository.

To use an image directly with an unnamed container:

$ docker image pull ubuntu
$ docker run ubuntu

Or use the name in Dockerfile like FROM ubuntu.

See ubuntu on Docker Hub.