docker-image-push (1) - Linux Manuals

docker-image-push: Push an image or a repository to a registry

NAME

docker-image-push - Push an image or a repository to a registry

SYNOPSIS

docker image push [OPTIONS] NAME[:TAG]

DESCRIPTION

Use docker image push to share your images to the Docker Hub <https://hub.docker.com> registry or to a self-hosted one.

Refer to docker-image-tag(1) for more information about valid image and tag names.

Killing the docker image push process, for example by pressing CTRL-c while it is running in a terminal, terminates the push operation.

Registry credentials are managed by docker-login(1).

EXAMPLES

Pushing a new image to a registry

First save the new image by finding the container ID (using docker container ls) and then committing it to a new image name. Note that only a-z0-9-_. are allowed when naming images:

# docker container commit c16378f943fe rhel-httpd

Now, push the image to the registry using the image ID. In this example the registry is on host named registry-host and listening on port 5000. To do this, tag the image with the host name or IP address, and the port of the registry:

# docker image tag rhel-httpd registry-host:5000/myadmin/rhel-httpd:latest
# docker image push registry-host:5000/myadmin/rhel-httpd:latest

Check that this worked by running:

# docker image ls

You should see both rhel-httpd and registry-host:5000/myadmin/rhel-httpd listed.

Push all tags of an image

Use the -a (or --all-tags) option to push To push all tags of a local image.

The following example creates multiple tags for an image, and pushes all those tags to Docker Hub.

$ docker image tag myimage registry-host:5000/myname/myimage:latest
$ docker image tag myimage registry-host:5000/myname/myimage:v1.0.1
$ docker image tag myimage registry-host:5000/myname/myimage:v1.0
$ docker image tag myimage registry-host:5000/myname/myimage:v1

The image is now tagged under multiple names:

$ docker image ls

REPOSITORY                          TAG        IMAGE ID       CREATED      SIZE
myimage                             latest     6d5fcfe5ff17   2 hours ago  1.22MB
registry-host:5000/myname/myimage   latest     6d5fcfe5ff17   2 hours ago  1.22MB
registry-host:5000/myname/myimage   v1         6d5fcfe5ff17   2 hours ago  1.22MB
registry-host:5000/myname/myimage   v1.0       6d5fcfe5ff17   2 hours ago  1.22MB
registry-host:5000/myname/myimage   v1.0.1     6d5fcfe5ff17   2 hours ago  1.22MB

When pushing with the --all-tags option, all tags of the registry-host:5000/myname/myimage image are pushed:

$ docker image push --all-tags registry-host:5000/myname/myimage

The push refers to repository [registry-host:5000/myname/myimage]
195be5f8be1d: Pushed
latest: digest: sha256:edafc0a0fb057813850d1ba44014914ca02d671ae247107ca70c94db686e7de6 size: 4527
195be5f8be1d: Layer already exists
v1: digest: sha256:edafc0a0fb057813850d1ba44014914ca02d671ae247107ca70c94db686e7de6 size: 4527
195be5f8be1d: Layer already exists
v1.0: digest: sha256:edafc0a0fb057813850d1ba44014914ca02d671ae247107ca70c94db686e7de6 size: 4527
195be5f8be1d: Layer already exists
v1.0.1: digest: sha256:edafc0a0fb057813850d1ba44014914ca02d671ae247107ca70c94db686e7de6 size: 4527

OPTIONS

-a, --all-tags[=false]         Push all tagged images in the repository

--disable-content-trust[=true]         Skip image signing

-h, --help[=false]         help for push

-q, --quiet[=false]         Suppress verbose output