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Manuals

Tags on Docker Hub

Table of contents

Tags let you manage multiple versions of images within a single Docker Hub repository. By adding a specific :<tag> to each image, such as docs/base:testing, you can organize and differentiate image versions for various use cases. If no tag is specified, the image defaults to the latest tag.

Tag a local image

To tag a local image, use one of the following methods:

  • When you build an image, use docker build -t <org-or-user-namespace>/<repo-name>[:<tag>.
  • Re-tag an existing local image with docker tag <existing-image> <org-or-user-namespace>/<repo-name>[:<tag>].
  • When you commit changes, use docker commit <existing-container> <org-or-user-namespace>/<repo-name>[:<tag>].

Then, you can push this image to the repository designated by its name or tag:

$ docker push <org-or-user-namespace>/<repo-name>:<tag>

The image is then uploaded and available for use in Docker Hub.

View repository tags

You can view the available tags and the size of the associated image.

  1. Sign in to Docker Hub.

  2. Select My Hub > Repositories.

    A list of your repositories appears.

  3. Select a repository.

    The General page for the repository appears.

  4. Select the Tags tab.

You can select a tag's digest to see more details.

Delete repository tags

Only the repository owner or other team members with granted permissions can delete tags.

  1. Sign in to Docker Hub.

  2. Select My Hub > Repositories.

    A list of your repositories appears.

  3. Select a repository.

    The General page for the repository appears.

  4. Select the Tags tab.

  5. Select the corresponding checkbox next to the tags to delete.

  6. Select Delete.

    A confirmation dialog appears.

  7. Select Delete.