244 lines
9.8 KiB
Markdown
244 lines
9.8 KiB
Markdown
# administering and running gitolite
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In this document:
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* <a href="#_please_read_this_first">please read this first</a>
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* <a href="#_adding_users_and_repos">adding users and repos</a>
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* <a href="#_using_hooks">using hooks</a>
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* <a href="#_custom_hooks">custom hooks</a>
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* <a href="#_gl_post_init_hook">"gl-post-init" hook</a>
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* <a href="#_hook_chaining">hook chaining</a>
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* <a href="#_environment_variables_available_to_hooks">environment variables available to hooks</a>
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* <a href="#_other_features">other features</a>
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* <a href="#_moving_pre_existing_repos_into_gitolite">moving pre-existing repos into gitolite</a>
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* <a href="#_specifying_gitweb_and_daemon_access">specifying gitweb and daemon access</a>
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* <a href="#_custom_git_config">custom git config</a>
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----
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<a name="_please_read_this_first"></a>
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### please read this first
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Unless you know what you're doing, do not do **anything** manually on the
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server, like adding new repositories or users or changing the access control
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rules. Things will break. For example, if you manually create a repo on the
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server, it will not have the required "update" hook, without which there is no
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access control for pushes.
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Most normal (day-to-day) gitolite admin work is done by cloning the
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gitolite-admin repo from the server to your workstation, making changes to the
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clone, and pushing those changes back.
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The installation steps in the previous section include the steps to do this
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clone, so you should already have one on your workstation, in
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`~/gitolite-admin`. You can of course clone it anywhere else you want and use
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that clone.
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Either way, make sure you `cd` into this clone first.
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*Note*: some of the paths in this document use variable names. Just refer to
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`~/.gitolite.rc` for the correct values for *your* installation.
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Once you've cloned it, you're ready to add users and repos.
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<a name="_adding_users_and_repos"></a>
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### adding users and repos
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* ask each user who will get access to send you a public key. See other
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sources (for example [here][genpub]) for how to do this
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* rename each public key according to the user's name, with a `.pub`
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extension, like `sitaram.pub` or `john-smith.pub`. You can also use
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periods and underscores
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* copy all these `*.pub` files to `keydir` in your gitolite-admin repo
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clone. You can also organise them into various subdirectories of `keydir`
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if you wish, since the entire tree is searched.
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* edit the config file (`conf/gitolite.conf` in your admin repo clone). See
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`conf/example.conf` in the gitolite source for details on what goes in
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that file, syntax, etc. Just add new repos as needed, and add new users
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and give them permissions as required. The users names should be exactly
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the same as their keyfile names, but without the `.pub` extension
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* when done, commit your changes and push. Any new repos you specified will
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automatically be created (empty, but clonable) and users' access will be
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updated as needed.
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<a name="_using_hooks"></a>
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### using hooks
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<a name="_custom_hooks"></a>
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#### custom hooks
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You can supply your own, custom, hook scripts if you wish. Install gitolite
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as usual, then:
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* if you installed using "from-client" method (gl-easy-install):
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* go to the gitolite *source* clone from which you did the original
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install
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* add your new hook into "hooks/common"
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* run src/gl-easy-install with the same arguments as you ran the first
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time
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* if you installed using one of the other methods
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* go to ~/.gitolite/hooks/common on the server and put your new hook
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there
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* now run "gl-setup" again
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You can use this procedure to install new hooks as well as to update hooks
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that you had previously installed.
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**VERY IMPORTANT SECURITY NOTE: the `update` hook in `hooks/common` is what
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implements all the branch-level permissions in gitolite. If you fiddle with
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the hooks directory, please make sure you do not mess with this file
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accidentally, or all your fancy per-branch permissions will stop working.**
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<a name="_gl_post_init_hook"></a>
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#### "gl-post-init" hook
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Sometimes it is necessary to do something whenever a new repo is created. If
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you need this functionality, just supply a hook called "gl-post-init" with
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whatever code you want in it.
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<a name="_hook_chaining"></a>
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#### hook chaining
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Gitolite basically takes over the update hook for all repos, but some setups
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really need the update hook functionality for their own purposes too. In
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order to allow this, Gitolite now exec's a hook called `update.secondary` when
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it's own "update" hook is done and everything is ready to go.
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You can create this `update.secondary` hook manually on selected repos on the
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server, or use the mechanism in the previous section to make gitolite put it
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on *all* your repos.
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Similarly, gitolite also takes over the post-update hook for the special
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"gitolite-admin" repo. This hook will also chain to a `post-update.secondary`
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if such a hook exists. People wishing to do exotic things on the server side
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when the admin repo is pushed should see doc/shell-games.notes for how to
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exploit this :-)
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Finally, these names (`update.secondary` and `post-update.secondary`) are
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merely the defaults. You can change them to anything you want; look in
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conf/example.gitolite.rc for details.
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<a name="_environment_variables_available_to_hooks"></a>
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#### environment variables available to hooks
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The following environment variables are set, and may be useful for any custom
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processing you wish to do in your hook code:
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* `GL_USER` -- the user doing the push
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* `GL_REPO` -- the reponame
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* `GL_REPO_BASE_ABS` -- the absolute base path where all the repos are kept
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The following variables are also set, but are generally less useful:
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* `GL_BINDIR` -- where all the binaries live
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* `GL_ADMINDIR` -- common directory for many gitolite things
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<a name="_other_features"></a>
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### other features
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<a name="_moving_pre_existing_repos_into_gitolite"></a>
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#### moving pre-existing repos into gitolite
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One simple way to add a pre-existing repo to gitolite is to let gitolite
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create it as a brand new repo as in the previous section, then do the
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following:
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cd your-copy-of-the-repo
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# make sure all the branches are correct and no extra stuff, "temp"
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# branches, etc., are present
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git push --all git@server:reponame
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git push --tags git@server:reponame
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(You could also use "git push --mirror" instead of separately doing branches
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and tags, but that will carry across *your* remote refs also, and typically
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you may not want that. Anyway please do a `git ls-remote git@server:repo` to
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make sure all the stuff you want went through, and is named correctly).
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All this is actually very simple and easily done. However, if you have many
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existing repos to add, this can be time-consuming and error-prone. Here's how
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to take a bunch of existing repos and add them to gitolite:
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* make sure they're *bare* repos ;-)
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* log on to the server and copy the repos to `$REPO_BASE` (which defaults to
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`~/repositories`), making sure that the directory names end in ".git".
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* back on your workstation, add each repo (without the `.git` suffix) to
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`conf/gitolite.conf` in your gitolite-admin repo clone. Then add, commit,
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push.
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<a name="_specifying_gitweb_and_daemon_access"></a>
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#### specifying gitweb and daemon access
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This is a feature that I personally do not use (corporate environments don't
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like unauthenticated access of any kind to any repo!), but someone wanted it,
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so here goes.
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To make a repo or repo group accessible via "git daemon", just give read
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permission to the special user "daemon".
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There's a special user called "gitweb" also, which works the same way.
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However, setting a description for the project also enables gitweb permissions
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so you may as well use that method and kill two birds with one stone, like so:
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gitolite = "fast, secure, access control for git in a corporate environment"
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You can also specify an owner for gitweb to show, if you like:
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gitolite "Sitaram Chamarty" = "fast, secure, access control for git in a corporate environment"
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Note that gitolite does **not** install or configure gitweb/daemon -- that is
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a one-time setup you must do separately. All this does is:
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* for daemon, create the file `git-daemon-export-ok` in the repository
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* for gitweb, add the repo (plus owner name, if given) to the list of
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projects to be served by gitweb (see the config file variable
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`$PROJECTS_LIST`, which should have the same value you specified for
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`$projects_list` when setting up gitweb)
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* put the description, if given, in `$repo/description`
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The "compile" script will keep these files consistent with the config settings
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-- this includes removing such settings/files if you remove "read" permissions
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for the special usernames or remove the description line.
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<a name="_custom_git_config"></a>
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#### custom git config
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The custom hooks feature is a blunt instrument -- all repos get the hook you
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specified and will run it. In order to make it a little more fine-grained,
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you could set your hooks to only work if a certain "gitconfig" variable was
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set. Which means we now need a way to specify "git config" settings on a per
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repository basis.
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Thanks to Teemu (teemu dot matilainen at iki dot fi), gitolite now does this
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very easily. For security reasons, this can only be done from the master
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config file (i.e., if you're using delegation, the delegated admins cannot
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specify git config settings).
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Please see `conf/example.conf` for syntax. Note that this only supports the
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basic forms of the "git config" command:
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git config section.key value # value may be an empty string
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git config --unset-all section.key
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It does not (currently) support other options like `--add`, the `value_regex`,
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etc.
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[genpub]: http://sitaramc.github.com/0-installing/2-access-gitolite.html#generating_a_public_key
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