How to delete tag images by docker

To delete the Docker image tag, follow these steps: Log in to the Docker registry. List the mirror tags. Use the docker image tag command to delete the tag, syntax: docker image tag --rm . Verify that the tag has been deleted.

How to delete tags in Docker images

Docker images are composed of layers, each layer can be attached with tags. Tags are used to make mirrors easier to identify and manage. However, in some cases, you may need to delete the tags in the image.

Steps to delete Docker image tags:

1. Log in to the Docker registry:

 <code>docker login</code>

2. List the mirror tags:

Use docker image inspect command to list the image's tags:

 <code>docker image inspect <image-name></image-name></code>

3. Delete the tag:

Use the docker image tag command to delete the tag:

 <code>docker image tag <image-name> <new-image-name> --rm <tag></tag></new-image-name></image-name></code>

in:

• <image-name></image-name> is the image name to be modified.
• <new-image-name></new-image-name> is the updated image name (can be selected as the original name).
• <tag></tag> is the tag to be deleted.

For example, to delete the prod tag in the mirror my-image :

 <code>docker image tag my-image my-image --rm prod</code>

4. Verification tags have been deleted:

Use docker image inspect command to verify that the tag has been deleted:

 <code>docker image inspect <image-name></image-name></code>

The tag will now be removed from the image.

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