docker-push.1.md 1.4 KB
% DOCKER(1) Docker User Manuals % William Henry % APRIL 2014
NAME
docker-push - Push an image or a repository to the registry
SYNOPSIS
docker push NAME[:TAG]
DESCRIPTION
Push an image or a repository to a registry. The default registry is the Docker Index located at index.docker.io. However the image can be pushed to another, perhaps private, registry as demonstrated in the example below.
EXAMPLE
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:
# 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.
Default Docker commands will push to the default index.docker.io
registry. Instead, push to the local registry, which is on a host called
registry-host*. 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.
HISTORY
April 2014, Originally compiled by William Henry (whenry at redhat dot com) based on docker.io source material and internal work.