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.

  • How do I run a salt state on a running docker container
  • How to correctly install RVM in Docker?
  • Measure resource usage of Docker container on exit
  • How do I link a container in docker only if it exists when starting the container?
  • docker-compose does not update resolv.conf
  • What is the reporitory name when add docker task in Bamboo?
  • Thanks for your help.

  • Setting multiple DOCKER_OPTS arguments
  • How to use docker with tensorflow
  • Docker: unable to find user root: no matching entries in passwd file
  • Docker-Compose error in powershell only: “Couldn't connect to docker daemon…”
  • Is Docker native on Mesos OS X?
  • how do i run a container so that it is running behind a proxy + on running?
  • 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.