How to run a gitlab-ci.yml job only on a tagged branch?

Question

How do I run a .gitlab-ci.yml job only on a tagged Master branch?

job:
  script:
  - echo "Do something"
  only:
  - master
  - tags

The above code will run if either condition exists: a Master branch or a tagged commit.

My goal is to have this run for a production deploy, but it would require that it be on the Master branch and that it be tagged (with a version). Otherwise, I'll have another job that will push to staging if its missing a tag.

Answer 1

This behavior will be introduced in version 12.

Open issue was recently update:

Jason Lenny @jlenny changed title from {-Update .gitlab-ci.yml to support conjunction logic for build conditions-} to Conjunction logic for build conditions MVC · 2 days ago

Jason Lenny @jlenny changed milestone to 12.0 · 2 days ago

(fingers crossed)

A solution is to use the except keyword to exclude all the branches, in conjunction with only to run on tags, in this way you run your pipeline only on tag in master branch:

  only:
    - tags
  except:
    - branches

I'm using version 11.3.4