How to rename Docker images without rebuilding them

107.1K Asked by JacobRutherford in Devops , Asked on Jul 27, 2021

I created a Docker image, but I forgot to name something, by default it has taken an unnamed name. Can anyone tell me how I can change the name of the Docker image?

Answered by Liam SMITH

You can rename your docker image by docker tag command. Use the below given command to do that.

    $ docker tag OldName:tag NewName:tag

Or another way to rename docker container

To rename docker container, use the rename sub-command as shown, in the following example, we renaming the container discourse_app to a new name disc_app.

    $ sudo docker rename discourse_app disc_app

After renaming a containers, confirm that it is now using the new name.

    $ sudo docker ps

Your Answer

Answer (1)

Ranjana

To rename Docker images without rebuilding them, you can follow these steps:

Tag the existing image with the new name: Use the docker tag command to assign a new name to the existing image. For example:

  docker tag old_image_name:tag new_image_name:tag

Verify the new tag: Ensure that the image has been properly tagged with the new name by listing the images:

  docker images

Remove the old tag (optional): If you want to remove the old tag while retaining the image, you can use the docker rmi command:

  docker rmi old_image_name:tag

By following these steps, you can effectively rename Docker images without the need to rebuild them.

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