2016-04-21 06:07:33 -04:00
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# Updating GitLab
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Depending on the installation method and your GitLab version, there are multiple
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update guides.
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There are currently 3 official ways to install GitLab:
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2019-02-12 07:39:48 -05:00
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- [Omnibus packages](#omnibus-packages)
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- [Source installation](#installation-from-source)
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- [Docker installation](#installation-using-docker)
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2016-04-21 06:07:33 -04:00
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Based on your installation, choose a section below that fits your needs.
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2014-10-02 06:39:26 -04:00
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## Omnibus Packages
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2019-02-12 07:39:48 -05:00
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- The [Omnibus update guide][omni-update]
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contains the steps needed to update an Omnibus GitLab package.
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2014-10-02 06:39:26 -04:00
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2015-02-16 12:10:07 -05:00
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## Installation from source
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2019-02-08 08:24:31 -05:00
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- [Upgrading Community Edition and Enterprise Edition from
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source](upgrading_from_source.md) - The guidelines for upgrading Community
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Edition and Enterprise Edition from source.
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2016-04-19 12:12:12 -04:00
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- [Patch versions](patch_versions.md) guide includes the steps needed for a
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2016-04-21 06:07:33 -04:00
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patch version, eg. 6.2.0 to 6.2.1, and apply to both Community and Enterprise
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Editions.
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2019-02-08 08:24:31 -05:00
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In the past we used separate documents for the upgrading instructions, but we
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have since switched to using a single document. The old upgrading guidelines
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can still be found in the Git repository:
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- [Old upgrading guidelines for Community Edition][old-ce-upgrade-docs]
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- [Old upgrading guidelines for Enterprise Edition][old-ee-upgrade-docs]
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2016-04-21 06:07:33 -04:00
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## Installation using Docker
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GitLab provides official Docker images for both Community and Enterprise
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editions. They are based on the Omnibus package and instructions on how to
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update them are in [a separate document][omni-docker].
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2016-04-21 06:07:33 -04:00
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2017-04-12 12:15:19 -04:00
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## Upgrading without downtime
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2017-08-03 12:11:26 -04:00
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Starting with GitLab 9.1.0 it's possible to upgrade to a newer major, minor, or
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patch version of GitLab without having to take your GitLab instance offline.
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However, for this to work there are the following requirements:
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2018-11-12 19:39:21 -05:00
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- You can only upgrade 1 minor release at a time. So from 9.1 to 9.2, not to
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9.3.
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- You have to use [post-deployment
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migrations](../development/post_deployment_migrations.md) (included in
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zero downtime update steps below).
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- You are using PostgreSQL. Starting from GitLab 12.1, MySQL is not supported.
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2017-08-03 12:11:26 -04:00
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Most of the time you can safely upgrade from a patch release to the next minor
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release if the patch release is not the latest. For example, upgrading from
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9.1.1 to 9.2.0 should be safe even if 9.1.2 has been released. We do recommend
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you check the release posts of any releases between your current and target
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version just in case they include any migrations that may require you to upgrade
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1 release at a time.
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Some releases may also include so called "background migrations". These
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migrations are performed in the background by Sidekiq and are often used for
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migrating data. Background migrations are only added in the monthly releases.
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Certain major/minor releases may require a set of background migrations to be
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finished. To guarantee this such a release will process any remaining jobs
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before continuing the upgrading procedure. While this won't require downtime
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(if the above conditions are met) we recommend users to keep at least 1 week
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between upgrading major/minor releases, allowing the background migrations to
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finish. The time necessary to complete these migrations can be reduced by
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increasing the number of Sidekiq workers that can process jobs in the
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`background_migration` queue. To check the size of this queue,
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[start a Rails console session](https://docs.gitlab.com/omnibus/maintenance/#starting-a-rails-console-session)
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and run the command below:
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```ruby
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Sidekiq::Queue.new('background_migration').size
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```
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As a rule of thumb, any database smaller than 10 GB won't take too much time to
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upgrade; perhaps an hour at most per minor release. Larger databases however may
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require more time, but this is highly dependent on the size of the database and
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the migrations that are being performed.
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### Examples
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To help explain this, let's look at some examples.
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**Example 1:** You are running a large GitLab installation using version 9.4.2,
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which is the latest patch release of 9.4. When GitLab 9.5.0 is released this
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installation can be safely upgraded to 9.5.0 without requiring downtime if the
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requirements mentioned above are met. You can also skip 9.5.0 and upgrade to
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9.5.1 once it's released, but you **can not** upgrade straight to 9.6.0; you
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_have_ to first upgrade to a 9.5.x release.
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**Example 2:** You are running a large GitLab installation using version 9.4.2,
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which is the latest patch release of 9.4. GitLab 9.5 includes some background
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migrations, and 10.0 will require these to be completed (processing any
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remaining jobs for you). Skipping 9.5 is not possible without downtime, and due
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to the background migrations would require potentially hours of downtime
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depending on how long it takes for the background migrations to complete. To
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work around this you will have to upgrade to 9.5.x first, then wait at least a
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week before upgrading to 10.0.
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**Example 3:** You use MySQL as the database for GitLab. Any upgrade to a new
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major/minor release will require downtime. If a release includes any background
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migrations this could potentially lead to hours of downtime, depending on the
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size of your database. To work around this you will have to use PostgreSQL and
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meet the other online upgrade requirements mentioned above.
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2017-04-12 12:15:19 -04:00
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2019-02-12 07:39:48 -05:00
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### Steps
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Steps to [upgrade without downtime][omni-zero-downtime].
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2016-04-21 06:07:33 -04:00
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## Upgrading between editions
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GitLab comes in two flavors: [Community Edition][ce] which is MIT licensed,
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and [Enterprise Edition][ee] which builds on top of the Community Edition and
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includes extra features mainly aimed at organizations with more than 100 users.
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Below you can find some guides to help you change editions easily.
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### Community to Enterprise Edition
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>**Note:**
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The following guides are for subscribers of the Enterprise Edition only.
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If you wish to upgrade your GitLab installation from Community to Enterprise
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Edition, follow the guides below based on the installation method:
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2019-02-11 11:08:25 -05:00
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- [Source CE to EE update guides][source-ce-to-ee] - The steps are very similar
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to a version upgrade: stop the server, get the code, update config files for
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the new functionality, install libraries and do migrations, update the init
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script, start the application and check its status.
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- [Omnibus CE to EE][omni-ce-ee] - Follow this guide to update your Omnibus
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GitLab Community Edition to the Enterprise Edition.
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### Enterprise to Community Edition
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If you need to downgrade your Enterprise Edition installation back to Community
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Edition, you can follow [this guide][ee-ce] to make the process as smooth as
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possible.
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2014-10-02 06:39:26 -04:00
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2019-08-05 02:51:15 -04:00
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## Version specific upgrading instructions
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### 12.2.0
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In 12.2.0, we enabled Rails' authenticated cookie encryption. Old sessions are
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automatically upgraded.
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However, session cookie downgrades are not supported. So after upgrading to 12.2.0,
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any downgrades would result to all sessions being invalidated and users are logged out.
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### 12.0.0
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In 12.0.0 we made various database related changes. These changes require that
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users first upgrade to the latest 11.11 patch release. Once upgraded to 11.11.x,
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users can upgrade to 12.x. Failure to do so may result in database migrations
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not being applied, which could lead to application errors.
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Example 1: you are currently using GitLab 11.11.3, which is the latest patch
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release for 11.11.x. You can upgrade as usual to 12.0.0, 12.1.0, etc.
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Example 2: you are currently using a version of GitLab 10.x. To upgrade, first
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upgrade to 11.11.3. Once upgraded to 11.11.3 you can safely upgrade to 12.0.0
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or future versions.
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2014-10-02 06:39:26 -04:00
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## Miscellaneous
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2016-04-19 12:12:12 -04:00
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- [MySQL to PostgreSQL](mysql_to_postgresql.md) guides you through migrating
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your database from MySQL to PostgreSQL.
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- [Restoring from backup after a failed upgrade](restore_after_failure.md)
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- [Upgrading PostgreSQL Using Slony](upgrading_postgresql_using_slony.md), for
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upgrading a PostgreSQL database with minimal downtime.
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2019-06-18 08:23:07 -04:00
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[omnidocker]: https://docs.gitlab.com/omnibus/docker/README.html
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[old-ee-upgrade-docs]: https://gitlab.com/gitlab-org/gitlab/tree/11-8-stable-ee/doc/update
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[old-ce-upgrade-docs]: https://gitlab.com/gitlab-org/gitlab-foss/tree/11-8-stable/doc/update
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[source-ce-to-ee]: upgrading_from_ce_to_ee.md
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[ee-ce]: ../downgrade_ee_to_ce/README.md
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[ce]: https://about.gitlab.com/features/#community
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[ee]: https://about.gitlab.com/features/#enterprise
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[omni-ce-ee]: https://docs.gitlab.com/omnibus/update/README.html#updating-community-edition-to-enterprise-edition
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[omni-docker]: https://docs.gitlab.com/omnibus/docker/README.html
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[omni-update]: https://docs.gitlab.com/omnibus/update/README.html
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[omni-zero-downtime]: https://docs.gitlab.com/omnibus/update/README.html#zero-downtime-updates
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