Gitlab MR Combiner

Merge multiple merge requests into a single branch in GitLab using tags.

How is it works?

1. Start the application
2. Configure a webhook to send a request when receiving a comment in a merge request (MR) in GitLab
   URL looks like: http://your-server.tld:8080/webhook
3. The application receives the request
4. The application retrieves all MRs with a unique tag
5. Clone the repository
6. Merge all MRs into one branch
7. Push the changes into branch

Installation

Docker

You can install this in docker:

docker run -d --rm --name gitlab-mr-combiner \
  -p 8080:8080 \
  -e TRIGGER_MESSAGE="/specific-message" \
  -e TARGET_BRANCH="target_branch" \
  -e TRIGGER_TAG="specific_tag" \
  -e GITLAB_TOKEN="<your access_token>" \
  -e SECRET_TOKEN="<your secret_token, optional>" \
  -e GITLAB_URL="<your_gitlab_url>, default is https://gitlab.com" \
  -v ~/.ssh:/root/.ssh:ro \
  globalartltd/gitlab-mr-combiner

Kubernetes

You can install using helm chart

You must store the SSH private key of any user who has access to the repository!
In this example, we mount it from the volume.

Setup

1. Create a webhook for the group or repository, selecting the trigger: Comments.
2. In the project settings, create a specific tag from your Docker environment, for example: stage-mr.
3. Apply this tag to all merge requests (MRs) that you want to merge.
4. Send /specific-message from the Docker environment.

Screenshot