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Diffstat (limited to 'doc/administration/repository_storages.md')
| -rw-r--r-- | doc/administration/repository_storages.md | 99 |
1 files changed, 90 insertions, 9 deletions
diff --git a/doc/administration/repository_storages.md b/doc/administration/repository_storages.md index 81bfe173151..55b054fc1a4 100644 --- a/doc/administration/repository_storages.md +++ b/doc/administration/repository_storages.md @@ -1,18 +1,99 @@ # Repository storages -GitLab allows you to define repository storage paths to enable distribution of -storage load between several mount points. - -## For installations from source +> [Introduced][ce-4578] in GitLab 8.10. -Add your repository storage paths in your `gitlab.yml` under repositories -> storages, using key -> value pairs. +GitLab allows you to define multiple repository storage paths to distribute the +storage load between several mount points. >**Notes:** +> - You must have at least one storage path called `default`. -- In order for backups to work correctly the storage path must **not** be a +- The paths are defined in key-value pairs. The key is an arbitrary name you + can pick to name the file path. +- The target directories and any of its subpaths must not be a symlink. + +## Configure GitLab + +>**Warning:** +In order for [backups] to work correctly, the storage path must **not** be a mount point and the GitLab user should have correct permissions for the parent -directory of the path. +directory of the path. In Omnibus GitLab this is taken care of automatically, +but for source installations you should be extra careful. +> +The thing is that for compatibility reasons `gitlab.yml` has a different +structure than Omnibus. In `gitlab.yml` you indicate the path for the +repositories, for example `/home/git/repositories`, while in Omnibus you +indicate `git_data_dirs`, which for the example above would be `/home/git`. +Then, Omnibus will create a `repositories` directory under that path to use with +`gitlab.yml`. +> +This little detail matters because while restoring a backup, the current +contents of `/home/git/repositories` [are moved to][raketask] `/home/git/repositories.old`, +so if `/home/git/repositories` is the mount point, then `mv` would be moving +things between mount points, and bad things could happen. Ideally, +`/home/git` would be the mount point, so then things would be moving within the +same mount point. This is guaranteed with Omnibus installations (because they +don't specify the full repository path but the parent path), but not for source +installations. + +--- + +Now that you've read that big fat warning above, let's edit the configuration +files and add the full paths of the alternative repository storage paths. In +the example below, we add two more mountpoints that are named `nfs` and `cephfs` +respectively. + +**For installations from source** + +1. Edit `gitlab.yml` and add the storage paths: + + ```yaml + repositories: + # Paths where repositories can be stored. Give the canonicalized absolute pathname. + # NOTE: REPOS PATHS MUST NOT CONTAIN ANY SYMLINK!!! + storages: # You must have at least a 'default' storage path. + default: /home/git/repositories + nfs: /mnt/nfs/repositories + cephfs: /mnt/cephfs/repositories + ``` + +1. [Restart GitLab] for the changes to take effect. + +>**Note:** +The [`gitlab_shell: repos_path` entry][repospath] in `gitlab.yml` will be +deprecated and replaced by `repositories: storages` in the future, so if you +are upgrading from a version prior to 8.10, make sure to add the configuration +as described in the step above. After you make the changes and confirm they are +working, you can remove the `repos_path` line. + +--- + +**For Omnibus installations** + +1. Edit `/etc/gitlab/gitlab.rb` by appending the rest of the paths to the + default one: + + ```ruby + git_data_dirs({ + "default" => "/var/opt/gitlab/git-data", + "nfs" => "/mnt/nfs/git-data", + "cephfs" => "/mnt/cephfs/git-data" + }) + ``` + + Note that Omnibus stores the repositories in a `repositories` subdirectory + of the `git-data` directory. + +## Choose where new project repositories will be stored + +Once you set the multiple storage paths, you can choose where new projects will +be stored via the **Application Settings** in the Admin area. -## For omnibus installations + -Follow the instructions at https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/doc/settings/configuration.md#storing-git-data-in-an-alternative-directory +[ce-4578]: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/4578 +[restart gitlab]: restart_gitlab.md#installations-from-source +[reconfigure gitlab]: restart_gitlab.md#omnibus-gitlab-reconfigure +[backups]: ../raketasks/backup_restore.md +[raketask]: https://gitlab.com/gitlab-org/gitlab-ce/blob/033e5423a2594e08a7ebcd2379bd2331f4c39032/lib/backup/repository.rb#L54-56 +[repospath]: https://gitlab.com/gitlab-org/gitlab-ce/blob/8-9-stable/config/gitlab.yml.example#L457 |