Gitlab CI.gitlab-ci.yml only checks for specific branches

Question

How can I get Gitlab CI to track only two specific branches?

I have a very simple script:

master: script: "npm install; grunt" 

this is something like:

 master: script: "npm install; grunt" only: - master 

Answer 1

Right, you can see an example here

Answer 2

Just in case, if someone else has a period in the name of the branch. Our branch is called "1.0", so we needed

  only: - /1.0/