title: Global environment variables for gitlab CI runner
body: <p>I am working to set up a gitlab runner for multiple projects, and we want to be able to set up environment variables for all of the projects.  I tried to set global variables in the <code>.bashrc</code> for both the <code>gitlab-runner</code> and <code>root</code> users but it did not recognize them during the CI script.  What is the correct location to declare global environment variables?</p>