GitLab has a great issue tracker but you can also use an external one such as Jira, Redmine, or Bugzilla. Issue trackers are configurable per GitLab project and allow you to do the following:
- the Issues link on the GitLab project pages takes you to the appropriate issue index of the external tracker
- clicking New issue on the project dashboard creates a new issue on the external tracker
The configuration is done via a project's Services.
To enable an external issue tracker you must configure the appropriate Service. Visit the links below for details:
To save you the hassle from configuring each project's service individually, GitLab provides the ability to set Service Templates which can then be overridden in each project's settings.
Read more on Services Templates.