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Yorick Peterse 223d8a3d26
Prepare for zero downtime migrations 
Starting with GitLab 9.1.0 we will no longer allow downtime migrations
unless absolutely necessary. This commit updates the various developer
guides and adds code that is necessary to make zero downtime migrations
less painful.
2017-04-12 18:15:19 +02:00
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8.2-to-8.3.md Updating documentation to include a missing step in the update procedure 2017-03-31 14:07:12 +03:00
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8.17-to-9.0.md Fix the 8.17 to 9.0 upgrade guide 2017-03-23 12:56:10 +01:00
9.0-to-9.1.md Update documents according to: 2017-04-11 21:10:25 +08:00
mysql_to_postgresql.md
patch_versions.md Set NODE_ENV=production for yarn:install 2017-04-07 02:08:33 +00:00
README.md Prepare for zero downtime migrations 2017-04-12 18:15:19 +02:00
restore_after_failure.md
upgrader.md
upgrading_postgresql_using_slony.md

README.md

Updating GitLab

Depending on the installation method and your GitLab version, there are multiple update guides.

There are currently 3 official ways to install GitLab:

  • Omnibus packages
  • Source installation
  • Docker installation

Based on your installation, choose a section below that fits your needs.

Table of Contents generated with DocToc

Omnibus Packages

Installation from source

Installation using Docker

GitLab provides official Docker images for both Community and Enterprise editions. They are based on the Omnibus package and instructions on how to update them are in a separate document.

Upgrading without downtime

Starting with GitLab 9.1.0 it's possible to upgrade to a newer version of GitLab without having to take your GitLab instance offline. However, for this to work there are the following requirements:

  1. You can only upgrade 1 release at a time. For example, if 9.1.15 is the last release of 9.1 then you can safely upgrade from that version to 9.2.0. However, if you are running 9.1.14 you first need to upgrade to 9.1.15.
  2. You have to use post-deployment migrations.
  3. You are using PostgreSQL. If you are using MySQL you will still need downtime when upgrading.

This applies to major, minor, and patch releases unless stated otherwise in a release post.

Upgrading between editions

GitLab comes in two flavors: Community Edition which is MIT licensed, and Enterprise Edition which builds on top of the Community Edition and includes extra features mainly aimed at organizations with more than 100 users.

Below you can find some guides to help you change editions easily.

Community to Enterprise Edition

Note: The following guides are for subscribers of the Enterprise Edition only.

If you wish to upgrade your GitLab installation from Community to Enterprise Edition, follow the guides below based on the installation method:

  • Source CE to EE update guides - Find your version, and follow the -ce-to-ee.md guide. The steps are very similar to a version upgrade: stop the server, get the code, update config files for the new functionality, install libraries and do migrations, update the init script, start the application and check its status.
  • Omnibus CE to EE - Follow this guide to update your Omnibus GitLab Community Edition to the Enterprise Edition.

Enterprise to Community Edition

If you need to downgrade your Enterprise Edition installation back to Community Edition, you can follow this guide to make the process as smooth as possible.

Miscellaneous