docker-push(1) Push an image or a repository to a registry


docker push [--help] NAME[:TAG] | [REGISTRY_HOST[:REGISTRY_PORT]/]NAME[:TAG]


This command pushes an image or a repository to a registry. If you do not specify a REGISTRY_HOST, the command uses Docker's public registry located at by default.


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Pushing a new image to a registry

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

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

Check that this worked by running:

# docker images

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

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


April 2014, Originally compiled by William Henry (whenry at redhat dot com) based on source material and internal work. June 2014, updated by Sven Dowideit <[email protected]> April 2015, updated by Mary Anthony for v2 <[email protected]> June 2015, updated by Sally O'Malley <[email protected]>