Maintenance Rake tasks

• https://docs.gitlab.com/ee/administration/raketasks/maintenance.html

See also

• gitlab-rake [ gitlab:check | gitlab:env:info | db:migrate:status | gitlab:background_migrations:status ]
• Upgrade GitLab, GitLab Omnibus, GitLab logs, check_gitlab_status.sh, apt-cache madison gitlab-ee, GitLab Changelog, Batched Background Migration (BBM)