<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=450517) </details> <!--IssueSummary end--> <!-- This template is a great use for issues that are feature::additions or technical tasks for larger issues.--> ### Proposal It should be possible to create a signed commit via the Gitlab API. Unlike GitHub's API, which has a "signature" parameter on its commit creation endpoint, the GitLab API doesn't appear to have an equivalent field according to the docs. This feature is important from a security perspective.