Editing Docker images (command)

[[Docker images management]]

<code>docker images<code> or <code>docker images REPO_NAME</code> List images
https://docs.docker.com/engine/reference/commandline/images/

<pre>
$ 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
</pre>

Notes:
* IMAGE ID column is the first 12 characters of the identifier for an image. You can create many tags of a given image (<code>[[docker tag]]</code><ref>https://docs.docker.com/engine/reference/commandline/tag/</ref>), 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 <code>[[docker push]]</code> or <code>[[docker pull]]</code>


Images are stored in <code>[[docker info]] | grep "Docker Root Dir"</code><ref>https://stackoverflow.com/questions/19234831/where-are-docker-images-stored-on-the-host-machine</ref>
:<code>DOCKER_ROOT_DIR/image/overlay2/imagedb/content</code>


UNTAGGED IMAGES (DANGLING)
 docker images --filter "[[dangling]]=true" 


== Related commands ==
* <code>[[docker system df]]</code>
* <code>[[docker-compose pull]]</code>
* <code>[[docker image prune]]</code>

== See also ==
* [[Container Registry]]
* {{docker images}}
* {{docker}}


[[Category:Cloud computing]]
[[Category:Software development]]

{{CC license}}
Original Source: https://en.wikiversity.org/wiki/DevOps/Docker/docker_images