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Operating Systems

Linux

GitLab is developed for the Linux operating system.

GitLab officially supports (recent versions of) these Linux distributions:

  • Ubuntu Linux
  • Debian/GNU Linux

It should also work on (though they are not officially supported):

  • Arch
  • CentOS
  • Fedora
  • Gentoo
  • RedHat

Other Unix Systems

There is nothing that prevents GitLab from running on other Unix operating systems. This means you may get it to work on systems running FreeBSD or OS X. If you want to try, please proceed with caution!

Windows

GitLab does not run on Windows and we have no plans of supporting it in the near future. Please consider using a virtual machine to run GitLab.

Rubies

GitLab requires Ruby (MRI) 1.9.3 and several Gems with native components. While it is generally possible to use other Rubies (like JRuby or Rubinius) it might require some work on your part.

Hardware requirements

CPU

  • 1 core works for under 100 users but the responsiveness might suffer
  • 2 cores is the recommended number of cores and supports up to 100 users
  • 4 cores supports about 1,000 users
  • 8 cores supports up to 10,000 users

Memory

  • 512MB is too little memory, GitLab will be very slow and you will need 250MB of swap
  • 768MB is the minimal memory size but we advise against this
  • 1GB supports up to 100 users if you do not have individual repo's over 250MB
  • 2GB is the recommended memory size and supports up to 1,000 users
  • 4GB supports up to 10,000 users

Storage

The necessary hard drive space largely depends on the size of the repos you want to store in GitLab. But as a rule of thumb you should have at least twice as much free space as your all repos combined take up. You need twice the storage because GitLab satellites contain an extra copy of each repo.

If you want to be flexible about growing your hard drive space in the future consider mounting it using LVM so you can add more hard drives when you need them.

Apart from a local hard drive you can also mount a volume that supports the network file system (NFS) protocol. This volume might be located on a file server, a network attached storage (NAS) device, a storage area network (SAN) or on an Amazon Web Services (AWS) Elastic Block Store (EBS) volume.

If you have enough RAM memory and a recent CPU the speed of GitLab is mainly limited by hard drive seek times. Having a fast drive (7200 RPM and up) or a solid state drive (SSD) will improve the responsiveness of GitLab.

Installation troubles and reporting success or failure

If you have troubles installing GitLab following the official installation guide or want to share your experience installing GitLab on a not officially supported platform, please follow the the contribution guide.

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