GitLab environment variables

• https://docs.gitlab.com/ee/ci/variables/#list-all-environment-variables

• GitLab: Install GitLab, Upgrade GitLab Gitlab runner (changelog), gitlab.rb, .gitlab/, gitlab-ci.yml, gitlab-ctl, gitlab-rake, gitlab-backup, gitlab-rails, GitLab editions, GitLab Security Dashboards, GitLab environments, GitLab environment variables, Auto DevOps, permissions, GitLab Pages, gitlab-rails, GitLab scheduled pipelines, GitLab logs, GitLab changelog , GitLab Release CLI, GitLab Omnibus, GitLab Advanced Search, GitLab container registry, GitLab infrastructure registry