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debian-mirror-gitlab/doc/administration/plugins.md
Pirate Praveen 514980f938 New upstream version 10.6.0+dfsg
2018-03-27 19:54:05 +05:30

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Plugins

Note: Plugins must be configured on the filesystem of the GitLab server. Only GitLab server administrators will be able to complete these tasks. Please explore system hooks or webhooks as an option if you do not have filesystem access.

Introduced in GitLab 10.6.

A plugin will run on each event so it's up to you to filter events or projects within a plugin code. You can have as many plugins as you want. Each plugin will be triggered by GitLab asynchronously in case of an event. For a list of events please see system hooks documentation.

Setup

Plugins must be placed directly into plugins directory, subdirectories will be ignored. There is an example directory inside plugins where you can find some basic examples.

Follow the steps below to set up a custom hook:

  1. On the GitLab server, navigate to the project's plugin directory. For an installation from source the path is usually /home/git/gitlab/plugins/. For Omnibus installs the path is usually /opt/gitlab/embedded/service/gitlab-rails/plugins.
  2. Inside the plugins directory, create a file with a name of your choice, but without spaces or special characters.
  3. Make the hook file executable and make sure it's owned by the git user.
  4. Write the code to make the plugin function as expected. Plugin can be in any language. Ensure the 'shebang' at the top properly reflects the language type. For example, if the script is in Ruby the shebang will probably be #!/usr/bin/env ruby.
  5. The data to the plugin will be provided as JSON on STDIN. It will be exactly same as one for system hooks

That's it! Assuming the plugin code is properly implemented the hook will fire as appropriate. Plugins file list is updated for each event. There is no need to restart GitLab to apply a new plugin.

If a plugin executes with non-zero exit code or GitLab fails to execute it, a message will be logged to plugin.log.

Validation

Writing own plugin can be tricky and its easier if you can check it without altering the system. We provided a rake task you can use with staging environment to test your plugin before using it in production. The rake task will use a sample data and execute each of plugins. By output you should be able to determine if system sees your plugin and if it was executed without errors.

# Omnibus installations
sudo gitlab-rake plugins:validate

# Installations from source
bundle exec rake plugins:validate RAILS_ENV=production

Example of output can be next:

-> bundle exec rake plugins:validate RAILS_ENV=production
Validating plugins from /plugins directory
* /home/git/gitlab/plugins/save_to_file.clj succeed (zero exit code)
* /home/git/gitlab/plugins/save_to_file.rb failure (non-zero exit code)