251 lines
17 KiB
Markdown
251 lines
17 KiB
Markdown
---
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stage: Enablement
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group: Distribution
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info: "To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments"
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description: 'Learn how to install, configure, update, and maintain your GitLab instance.'
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---
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# Administrator documentation **(CORE ONLY)**
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Learn how to administer your self-managed GitLab instance.
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GitLab has two product distributions available through [different subscriptions](https://about.gitlab.com/pricing/):
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- The open source [GitLab Community Edition (CE)](https://gitlab.com/gitlab-org/gitlab-foss).
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- The open core [GitLab Enterprise Edition (EE)](https://gitlab.com/gitlab-org/gitlab).
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You can [install either GitLab CE or GitLab EE](https://about.gitlab.com/install/ce-or-ee/).
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However, the features you have access to depend on your chosen [subscription](https://about.gitlab.com/pricing/).
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GitLab Community Edition installations have access only to Core features.
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Non-administrator users can't access GitLab administration tools and settings.
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GitLab.com is administered by GitLab, Inc., and only GitLab team members have
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access to its administration tools and settings. Users of GitLab.com should
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instead refer to the [User documentation](../user/index.md) for GitLab
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configuration and usage documentation.
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## Installing and maintaining GitLab
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Learn how to install, configure, update, and maintain your GitLab instance.
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### Installing GitLab
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- [Install](../install/README.md): Requirements, directory structures, and installation methods.
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- [Database load balancing](database_load_balancing.md): Distribute database queries among multiple database servers.
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- [Omnibus support for log forwarding](https://docs.gitlab.com/omnibus/settings/logs.html#udp-log-shipping-gitlab-enterprise-edition-only).
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- [Reference architectures](reference_architectures/index.md): Add additional resources to support more users.
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- [Installing GitLab on Amazon Web Services (AWS)](../install/aws/index.md): Set up GitLab on Amazon AWS.
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- [Geo](geo/index.md): Replicate your GitLab instance to other geographic locations as a read-only fully operational version.
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- [Disaster Recovery](geo/disaster_recovery/index.md): Quickly fail-over to a different site with minimal effort in a disaster situation.
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- [Add License](../user/admin_area/license.md): Upload a license at install time to unlock features that are in paid tiers of GitLab.
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### Configuring GitLab
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- [Adjust your instance's timezone](timezone.md): Customize the default time zone of GitLab.
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- [System hooks](../system_hooks/system_hooks.md): Notifications when users, projects and keys are changed.
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- [Security](../security/README.md): Learn what you can do to further secure your GitLab instance.
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- [Usage statistics, version check, and usage ping](../user/admin_area/settings/usage_statistics.md): Enable or disable information about your instance to be sent to GitLab, Inc.
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- [Global user settings](user_settings.md): Configure instance-wide user permissions.
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- [Polling](polling.md): Configure how often the GitLab UI polls for updates.
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- [GitLab Pages configuration](pages/index.md): Enable and configure GitLab Pages.
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- [GitLab Pages configuration for GitLab source installations](pages/source.md):
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Enable and configure GitLab Pages on [source installations](../install/installation.md#installation-from-source).
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- [Uploads administration](uploads.md): Configure GitLab uploads storage.
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- [Environment variables](environment_variables.md): Supported environment
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variables that can be used to override their default values to configure
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GitLab.
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- [Plugins](file_hooks.md): With custom plugins, GitLab administrators can
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introduce custom integrations without modifying GitLab source code.
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- [Enforcing Terms of Service](../user/admin_area/settings/terms.md)
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- [Third party offers](../user/admin_area/settings/third_party_offers.md)
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- [Compliance](compliance.md): A collection of features from across the
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application that you may configure to help ensure that your GitLab instance
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and DevOps workflow meet compliance standards.
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- [Diff limits](../user/admin_area/diff_limits.md): Configure the diff rendering
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size limits of branch comparison pages.
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- [Merge request diffs storage](merge_request_diffs.md): Configure merge
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requests diffs external storage.
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- [Broadcast Messages](../user/admin_area/broadcast_messages.md): Send messages
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to GitLab users through the UI.
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- [Elasticsearch](../integration/elasticsearch.md): Enable Elasticsearch to
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empower Advanced Search. Useful when you deal with a huge amount of data.
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- [External Classification Policy Authorization](../user/admin_area/settings/external_authorization.md).
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- [Upload a license](../user/admin_area/license.md): Upload a license to unlock
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features that are in paid tiers of GitLab.
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- [Admin Area](../user/admin_area/index.md): for self-managed instance-wide
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configuration and maintenance.
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- [S/MIME Signing](smime_signing_email.md): how to sign all outgoing notification
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emails with S/MIME.
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- [Enabling and disabling features flags](feature_flags.md): how to enable and
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disable GitLab features deployed behind feature flags.
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#### Customizing GitLab appearance
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- [Header logo](../user/admin_area/appearance.md#navigation-bar): Change the logo on all pages and email headers.
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- [Favicon](../user/admin_area/appearance.md#favicon): Change the default favicon to your own logo.
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- [Branded login page](../user/admin_area/appearance.md#sign-in--sign-up-pages): Customize the login page with your own logo, title, and description.
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- ["New Project" page](../user/admin_area/appearance.md#new-project-pages): Customize the text to be displayed on the page that opens whenever your users create a new project.
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- [Additional custom email text](../user/admin_area/settings/email.md#custom-additional-text): Add additional custom text to emails sent from GitLab.
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### Maintaining GitLab
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- [Rake tasks](../raketasks/README.md): Perform various tasks for maintenance, backups, automatic webhooks setup, and more.
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- [Backup and restore](../raketasks/backup_restore.md): Backup and restore your GitLab instance.
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- [Operations](operations/index.md): Keeping GitLab up and running (clean up Redis sessions, moving repositories, Sidekiq MemoryKiller, Puma).
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- [Restart GitLab](restart_gitlab.md): Learn how to restart GitLab and its components.
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- [Invalidate Markdown cache](invalidate_markdown_cache.md): Invalidate any cached Markdown.
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- [Instance review](instance_review.md): Request a free review of your GitLab instance.
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#### Updating GitLab
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- [GitLab versions and maintenance policy](../policy/maintenance.md): Understand GitLab versions and releases (Major, Minor, Patch, Security), as well as update recommendations.
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- [Update GitLab](../update/README.md): Update guides to upgrade your installation to a new version.
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- [Upgrading without downtime](../update/README.md#upgrading-without-downtime): Upgrade to a newer major, minor, or patch version of GitLab without taking your GitLab instance offline.
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- [Migrate your GitLab CI/CD data to another version of GitLab](../migrate_ci_to_ce/README.md): If you have an old GitLab installation (older than 8.0), follow this guide to migrate your existing GitLab CI/CD data to another version of GitLab.
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### Upgrading or downgrading GitLab
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- [Upgrade from GitLab CE to GitLab EE](../update/README.md#upgrading-between-editions): learn how to upgrade GitLab Community Edition to GitLab Enterprise Editions.
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- [Downgrade from GitLab EE to GitLab CE](../downgrade_ee_to_ce/README.md): Learn how to downgrade GitLab Enterprise Editions to Community Edition.
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### GitLab platform integrations
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- [Mattermost](https://docs.gitlab.com/omnibus/gitlab-mattermost/): Integrate with [Mattermost](https://mattermost.com), an open source, private cloud workplace for web messaging.
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- [PlantUML](integration/plantuml.md): Create simple diagrams in AsciiDoc and Markdown documents
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created in snippets, wikis, and repositories.
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- [Web terminals](integration/terminal.md): Provide terminal access to your applications deployed to Kubernetes from within GitLab CI/CD [environments](../ci/environments/index.md#web-terminals).
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## User settings and permissions
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- [Creating users](../user/profile/account/create_accounts.md): Create users manually or through authentication integrations.
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- [Libravatar](libravatar.md): Use Libravatar instead of Gravatar for user avatars.
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- [Sign-up restrictions](../user/admin_area/settings/sign_up_restrictions.md): block email addresses of specific domains, or whitelist only specific domains.
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- [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 (SSH, HTTP, HTTPS).
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- [Authentication and Authorization](auth/README.md): Configure external authentication with LDAP, SAML, CAS, and additional providers.
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- [Sync LDAP](auth/ldap/index.md).
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- [Kerberos authentication](../integration/kerberos.md).
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- See also other [authentication](../topics/authentication/index.md#gitlab-administrators) topics (for example, enforcing 2FA).
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- [Email users](../tools/email.md): Email GitLab users from within GitLab.
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- [User Cohorts](../user/admin_area/analytics/user_cohorts.md): Display the monthly cohorts of new users and their activities over time.
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- [Audit events](audit_events.md): View the changes made within the GitLab server for:
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- Groups and projects.
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- Instances.
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- [Auditor users](auditor_users.md): Users with read-only access to all projects, groups, and other resources on the GitLab instance.
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- [Incoming email](incoming_email.md): Configure incoming emails to allow
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users to [reply by email](reply_by_email.md), create [issues by email](../user/project/issues/managing_issues.md#new-issue-via-email) and
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[merge requests by email](../user/project/merge_requests/creating_merge_requests.md#new-merge-request-by-email), and to enable [Service Desk](../user/project/service_desk.md).
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- [Postfix for incoming email](reply_by_email_postfix_setup.md): Set up a
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basic Postfix mail server with IMAP authentication on Ubuntu for incoming
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emails.
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- [Abuse reports](../user/admin_area/abuse_reports.md): View and resolve abuse reports from your users.
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- [Credentials Inventory](../user/admin_area/credentials_inventory.md): With Credentials inventory, GitLab administrators can keep track of the credentials used by their users in their GitLab self-managed instance.
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## Project settings
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- [Issue closing pattern](issue_closing_pattern.md): Customize how to close an issue from commit messages.
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- [Gitaly](gitaly/index.md): Configuring Gitaly, the Git repository storage service for GitLab.
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- [Default labels](../user/admin_area/labels.md): Create labels that are automatically added to every new project.
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- [Restrict the use of public or internal projects](../public_access/public_access.md#restricting-the-use-of-public-or-internal-projects): Restrict the use of visibility levels for users when they create a project or a snippet.
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- [Custom project templates](../user/admin_area/custom_project_templates.md): Configure a set of projects to be used as custom templates when creating a new project.
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## Package Registry administration
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- [Container Registry](packages/container_registry.md): Configure Container Registry with GitLab.
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- [Package Registry](packages/index.md): Enable GitLab to act as an NPM Registry and a Maven Repository.
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- [Dependency Proxy](packages/dependency_proxy.md): Configure the Dependency Proxy, a local proxy for frequently used upstream images/packages.
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### Repository settings
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- [Repository checks](repository_checks.md): Periodic Git repository checks.
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- [Repository storage paths](repository_storage_paths.md): Manage the paths used to store repositories.
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- [Repository storage types](repository_storage_types.md): Information about the different repository storage types.
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- [Repository storage Rake tasks](raketasks/storage.md): A collection of Rake tasks to list and migrate existing projects and attachments associated with it from Legacy storage to Hashed storage.
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- [Limit repository size](../user/admin_area/settings/account_and_limit_settings.md): Set a hard limit for your repositories' size.
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- [Static objects external storage](static_objects_external_storage.md): Set external storage for static objects in a repository.
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## Continuous Integration settings
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- [Enable/disable GitLab CI/CD](../ci/enable_or_disable_ci.md#site-wide-admin-setting): Enable or disable GitLab CI/CD for your instance.
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- [GitLab CI/CD admin settings](../user/admin_area/settings/continuous_integration.md): Enable or disable Auto DevOps site-wide and define the artifacts' max size and expiration time.
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- [External Pipeline Validation](external_pipeline_validation.md): Enable, disable and configure external pipeline validation.
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- [Job artifacts](job_artifacts.md): Enable, disable, and configure job artifacts (a set of files and directories which are outputted by a job when it completes successfully).
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- [Job logs](job_logs.md): Information about the job logs.
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- [Register runners](../ci/runners/README.md#types-of-runners): Learn how to register and configure runners.
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- [Shared runners pipelines quota](../user/admin_area/settings/continuous_integration.md#shared-runners-pipeline-minutes-quota): Limit the usage of pipeline minutes for shared runners.
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- [Enable/disable Auto DevOps](../topics/autodevops/index.md#enablingdisabling-auto-devops): Enable or disable Auto DevOps for your instance.
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## Snippet settings
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- [Setting snippet content size limit](snippets/index.md): Set a maximum content size limit for snippets.
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## Wiki settings
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- [Setting wiki page content size limit](wikis/index.md): Set a maximum content size limit for wiki pages.
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## Git configuration options
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- [Server hooks](server_hooks.md): Server hooks (on the filesystem) for when webhooks aren't enough.
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- [Git LFS configuration](lfs/index.md): Learn how to configure LFS for GitLab.
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- [Housekeeping](housekeeping.md): Keep your Git repositories tidy and fast.
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- [Configuring Git Protocol v2](git_protocol.md): Git protocol version 2 support.
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- [Manage large files with `git-annex` (Deprecated)](git_annex.md)
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## Monitoring GitLab
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- [Monitoring GitLab](monitoring/index.md):
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- [Monitoring uptime](../user/admin_area/monitoring/health_check.md): Check the server status using the health check endpoint.
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- [IP whitelist](monitoring/ip_whitelist.md): Monitor endpoints that provide health check information when probed.
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- [Monitoring GitHub imports](monitoring/github_imports.md): The GitLab GitHub Importer displays Prometheus metrics to monitor the health and progress of the importer.
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### Performance Monitoring
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- [GitLab Performance Monitoring](monitoring/performance/index.md):
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- [Enable Performance Monitoring](monitoring/performance/gitlab_configuration.md): Enable GitLab Performance Monitoring.
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- [GitLab performance monitoring with Prometheus](monitoring/prometheus/index.md): Configure GitLab and Prometheus for measuring performance metrics.
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- [GitLab performance monitoring with Grafana](monitoring/performance/grafana_configuration.md): Configure GitLab to visualize time series metrics through graphs and dashboards.
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- [Request Profiling](monitoring/performance/request_profiling.md): Get a detailed profile on slow requests.
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- [Performance Bar](monitoring/performance/performance_bar.md): Get performance information for the current page.
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## Analytics
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- [Pseudonymizer](pseudonymizer.md): Export data from a GitLab database to CSV files in a secure way.
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## Troubleshooting
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- [Debugging tips](troubleshooting/debug.md): Tips to debug problems when things go wrong
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- [Log system](logs.md): Where to look for logs.
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- [Sidekiq Troubleshooting](troubleshooting/sidekiq.md): Debug when Sidekiq appears hung and is not processing jobs.
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- [Troubleshooting Elasticsearch](troubleshooting/elasticsearch.md)
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- [Navigating GitLab via Rails console](troubleshooting/navigating_gitlab_via_rails_console.md)
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- [GitLab application limits](instance_limits.md)
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### Support Team Docs
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The GitLab Support Team has collected a lot of information about troubleshooting GitLab
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instances. These documents are normally used by the Support Team itself, or by customers
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with direct guidance from a Support Team member. GitLab administrators may find the
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information useful for troubleshooting, but if you are experiencing trouble with your
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GitLab instance, you should check your [support options](https://about.gitlab.com/support/)
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before referring to these documents.
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WARNING:
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Using the commands listed in the documentation below could result in data loss or
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other damage to a GitLab instance, and should only be used by experienced administrators
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who are aware of the risks.
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- [Useful diagnostics tools](troubleshooting/diagnostics_tools.md)
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- [Useful Linux commands](troubleshooting/linux_cheat_sheet.md)
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- [Troubleshooting Kubernetes](troubleshooting/kubernetes_cheat_sheet.md)
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- [Troubleshooting PostgreSQL](troubleshooting/postgresql.md)
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- [Guide to test environments](troubleshooting/test_environments.md) (for Support Engineers)
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- [GitLab Rails console commands](troubleshooting/gitlab_rails_cheat_sheet.md) (for Support Engineers)
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- [Troubleshooting SSL](troubleshooting/ssl.md)
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- Useful links:
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- [GitLab Developer Docs](../development/README.md)
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- [Repairing and recovering broken Git repositories](https://git.seveas.net/repairing-and-recovering-broken-git-repositories.html)
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- [Testing with OpenSSL](https://www.feistyduck.com/library/openssl-cookbook/online/ch-testing-with-openssl.html)
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- [`strace` zine](https://wizardzines.com/zines/strace/)
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- GitLab.com-specific resources:
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- [Group SAML/SCIM setup](troubleshooting/group_saml_scim.md)
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