# Documentation ## User documentation - [API](api/README.md) Automate GitLab via a simple and powerful API. - [CI/CD](ci/README.md) GitLab Continuous Integration (CI) and Continuous Delivery (CD) getting started, `.gitlab-ci.yml` options, and examples. - [GitLab as OAuth2 authentication service provider](integration/oauth_provider.md). It allows you to login to other applications from GitLab. - [Container Registry](container_registry/README.md) Learn how to use GitLab Container Registry. - [GitLab Basics](gitlab-basics/README.md) Find step by step how to start working on your commandline and on GitLab. - [Importing to GitLab](workflow/importing/README.md). - [Importing and exporting projects between instances](user/project/settings/import_export.md). - [Markdown](user/project/markdown.md) GitLab's advanced formatting system. - [Migrating from SVN](workflow/importing/migrating_from_svn.md) Convert a SVN repository to Git and GitLab. - [Permissions](user/permissions.md) Learn what each role in a project (external/guest/reporter/developer/master/owner) can do. - [Profile Settings](profile/README.md) - [Project Services](project_services/project_services.md) Integrate a project with external services, such as CI and chat. - [Public access](public_access/public_access.md) Learn how you can allow public and internal access to projects. - [SSH](ssh/README.md) Setup your ssh keys and deploy keys for secure access to your projects. - [Webhooks](web_hooks/web_hooks.md) Let GitLab notify you when new code has been pushed to your project. - [Workflow](workflow/README.md) Using GitLab functionality and importing projects from GitHub and SVN. ## Administrator documentation - [Access restrictions](user/admin_area/settings/visibility_and_access_controls.md#enabled-git-access-protocols) Define which Git access protocols can be used to talk to GitLab - [Authentication/Authorization](administration/auth/README.md) Configure external authentication with LDAP, SAML, CAS and additional Omniauth providers. - [Custom Git hooks](administration/custom_hooks.md) Custom Git hooks (on the filesystem) for when webhooks aren't enough. - [Install](install/README.md) Requirements, directory structures and installation from source. - [Restart GitLab](administration/restart_gitlab.md) Learn how to restart GitLab and its components. - [Integration](integration/README.md) How to integrate with systems such as JIRA, Redmine, Twitter. - [Issue closing](customization/issue_closing.md) Customize how to close an issue from commit messages. - [Libravatar](customization/libravatar.md) Use Libravatar for user avatars. - [Log system](administration/logs.md) Log system. - [Environment Variables](administration/environment_variables.md) to configure GitLab. - [Operations](operations/README.md) Keeping GitLab up and running. - [Raketasks](raketasks/README.md) Backups, maintenance, automatic webhook setup and the importing of projects. - [Repository checks](administration/repository_checks.md) Periodic Git repository checks. - [Repository storages](administration/repository_storages.md) Manage the paths used to store repositories. - [Security](security/README.md) Learn what you can do to further secure your GitLab instance. - [System hooks](system_hooks/system_hooks.md) Notifications when users, projects and keys are changed. - [Update](update/README.md) Update guides to upgrade your installation. - [Welcome message](customization/welcome_message.md) Add a custom welcome message to the sign-in page. - [Reply by email](incoming_email/README.md) Allow users to comment on issues and merge requests by replying to notification emails. - [Migrate GitLab CI to CE/EE](migrate_ci_to_ce/README.md) Follow this guide to migrate your existing GitLab CI data to GitLab CE/EE. - [Git LFS configuration](workflow/lfs/lfs_administration.md) - [Housekeeping](administration/housekeeping.md) Keep your Git repository tidy and fast. - [GitLab Performance Monitoring](monitoring/performance/introduction.md) Configure GitLab and InfluxDB for measuring performance metrics. - [Monitoring uptime](monitoring/health_check.md) Check the server status using the health check endpoint. - [Debugging Tips](administration/troubleshooting/debug.md) Tips to debug problems when things go wrong - [Sidekiq Troubleshooting](administration/troubleshooting/sidekiq.md) Debug when Sidekiq appears hung and is not processing jobs. - [High Availability](administration/high_availability/README.md) Configure multiple servers for scaling or high availability. - [Container Registry](administration/container_registry.md) Configure Docker Registry with GitLab. - [Multiple mountpoints for the repositories storage](administration/repository_storages.md) Define multiple repository storage paths to distribute the storage load. ## Contributor documentation - [Documentation styleguide](development/doc_styleguide.md) Use this styleguide if you are contributing to documentation. - [Development](development/README.md) Explains the architecture and the guidelines for shell commands. - [Legal](legal/README.md) Contributor license agreements.