docs/docker-hub/repos/index.md

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Using repositories on Docker Hub	Docker, docker, trusted, registry, accounts, plans, Dockerfile, Docker Hub, webhooks, docs, documentation, manage, repos	Manage repositories	/engine/tutorials/dockerrepos/

Docker Hub repositories allow you share container images with your team, customers, or the Docker community at large.

Docker images are pushed to Docker Hub through the docker push command. A single Docker Hub repository can hold many Docker images (stored as tags).

Creating a repository

To create a repository, sign into Docker Hub, select Repositories then Create Repository:

When creating a new repository:

• You can choose to put it in your Docker ID namespace, or in any organization where you are an owner.

• The repository name needs to be unique in that namespace, can be two to 255 characters, and can only contain lowercase letters, numbers, hyphens (-), and underscores (_).

  Note:

  You can't rename a Docker Hub repository once it's created.

• The description can be up to 100 characters and used in the search result.

• The maximum logo size is 1000x1000.

• You can link a GitHub or Bitbucket account now, or choose to do it later in the repository settings.

• You can set your default visibility to public or private for your account.

  Note:

  For organizations creating a new repository, it's recommended you select Private.

After you select Create, you can start using docker push to push images to this repository.

Creating a private repository

To create a private repository, navigate to Docker Hub and select Repositories and Private.

Note

To update your public repository to private, navigate to your repository, select Settings and Make private.

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Deleting a repository

1. Navigate to Docker Hub{: target="blank" rel="noopener" class=""} and select Repositories.

2. Select a repository from the list, select Settings, and then Delete Repository.

   Note:

   Deleting a repository deletes all the images it contains and its build settings. This action can't be undone.

3. Enter the name of the repository to confirm the deletion and select Delete.

Consolidating a repository

Personal to personal

When consolidating personal repositories, you can pull private images from the initial repository and push them into another repository owned by you. To avoid losing your private images, perform the following steps:

1. Navigate to Docker Hub{: target="blank" rel="noopener" class=""} create a Docker ID and select the personal subscription.
2. Using docker login from the CLI, sign in using your original Docker ID and pull your private images.
3. Tag your private images with your newly created Docker ID using: docker tag namespace1/docker101tutorial new_namespace/docker101tutorial
4. Using docker login from the CLI, sign in with your newly created Docker ID, and push your newly tagged private images to your new Docker ID namespace. docker push new_namespace/docker101tutorial
5. The private images that existed in your previous namespace are now available in your new Docker ID namespace.

Personal to an organization

To avoid losing your private images, you can pull your private images from your personal namespace and push them to an organization that's owned by you.

1. Navigate to Docker Hub{: target="blank" rel="noopener" class=""} and select Organizations.
2. Select the applicable organization and verify that your user account is a member of the organization.
3. Sign in to Docker Hub{: target="blank" rel="noopener" class=""} using your original Docker ID, and pull your images from the initial namespace. docker pull namespace1/docker101tutorial
4. Tag your images with your new organization namespace. docker tag namespace1/docker101tutorial <new_org>/docker101tutorial
5. Push your newly tagged images to your new org namespace. docker push new_org/docker101tutorial

The private images that existed in the initial namespace are now available for your organization.

Pushing a Docker container image to Docker Hub

To push an image to Docker Hub, you must first name your local image using your Docker Hub username and the repository name that you created through Docker Hub on the web.

You can add multiple images to a repository by adding a specific :<tag> to them (for example docs/base:testing). If it's not specified, the tag defaults to latest.

Name your local images using one of these methods:

• When you build them, using docker build -t <hub-user>/<repo-name>[:<tag>]
• By re-tagging an existing local image docker tag <existing-image> <hub-user>/<repo-name>[:<tag>]
• By using docker commit <existing-container> <hub-user>/<repo-name>[:<tag>] to commit changes

Now you can push this repository to the registry designated by its name or tag.

$ docker push <hub-user>/<repo-name>:<tag>

The image is then uploaded and available for use by your teammates and/or the community.