Tagging docker image with tag from git repository

Question

I am using Gitlab for repository and ci/cd. Currently trying to set up pipeline that creates a docker image from a build stage. All examples I have seen have a simple naming of image where e.g. the branch is used(master)

My question is if I want to tag the image based on the current tag in the repository how do I do this? I am presuming I can use a Gitlab runner variable but do not see one to us

Answer 1

There are a lot of predefined variables in Gitlab CI. I think you are looking for CI_COMMIT_TAG.

So you could use it this way:

docker build -t $CI_REGISTRY_IMAGE:$CI_COMMIT_TAG

So the image would look like registry.example.com/group/project:tag