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Docker-DCO-1.1-Signed-off-by: James Turnbull <james@lovedthanlost.net> (github: jamtur01) Upstream-commit: 2f3cb370dfaca1f1c41bbd7af5f064f70ad8267b Component: engine
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page_title: Repository page_description: Definition of an Repository page_keywords: containers, lxc, concepts, explanation, image, repository, container
Repository
Introduction
A repository is a set of images either on your local Docker server, or shared, by pushing it to a Registry server.
Images can be associated with a repository (or multiple) by giving them an image name using one of three different commands:
- At build time (e.g.
sudo docker build -t IMAGENAME), - When committing a container (e.g.
sudo docker commit CONTAINERID IMAGENAME) or - When tagging an image id with an image name (e.g.
sudo docker tag IMAGEID IMAGENAME).
A Fully Qualified Image Name (FQIN) can be made up of 3 parts:
[registry_hostname[:port]/][user_name/](repository_name:version_tag)
username and registry_hostname
default to an empty string. When registry_hostname
is an empty string, then docker push
will push to index.docker.io:80.
If you create a new repository which you want to share, you will need to
set at least the user_name, as the ‘default’ blank
user_name prefix is reserved for official Docker
images.
For more information see Working with Repositories