Real-world Docker Series: Tagging Images

Once a container has been loaded (or pulled) you can tag it to make it more useful to your project. A tag is very similar to a repository tag when working with a version control system. You'll want a useful tag name to be able to manage your containers easily later.

Run 'docker images'

Notice the container id listed. We'll need that to tag the container.

Run 'docker tag <image id> <your tag name>'

Verify your tag by running 'docker images' again.  It will now appear with the tag you provided.

A single docker container image can be used by many running containers. This is done by making use of the –name <desired running name> flag during a 'docker run'.  We'll go over this in detail later.

Next: Bind Mounting Persistent Storage & Ports