What is a Docker tag (looking for a definition)?

I’m looking for a definition of “Docker tag”.

I read the docs and related SO posts and couldn’t find anything.

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  • One Solution collect form web for “What is a Docker tag (looking for a definition)?”

    It’s basically meta-data you can use to distinguish versions of your Docker images so you can preserve older copies or variants of a primary build.

    If you’ve been using Docker, you can see a list of images and their tags via the docker images command. If you don’t specify a tag, the default will be latest.

    As you saw in the docs, to create a new tag the format is:

    docker tag IMAGE[:TAG] IMAGE[:TAG]

    Docker will be the best open platform for developers and sysadmins to build, ship, and run distributed applications.