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% 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](https://index.docker.io/v1/). 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.
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