main.yml

name: Trigger GitLab CI on Push or PR
on:
  push:
    branches:
      - '*'  # Trigger on push to any branch
  pull_request:
    types: [opened, synchronize, reopened]  # Trigger on PR open, synchronize (commit push), and reopen events
jobs:
  trigger-gitlab-ci:
    name: Trigger GitLab CI Job
    runs-on: ubuntu-latest
    steps:
      # Checkout the code (required for GitLab to access it)
      - name: Checkout code
        uses: actions/checkout@v2
      # Trigger GitLab CI Job using the GitHub Action from the marketplace
      - name: Trigger GitLab CI Job
        uses: appleboy/gitlab-ci-action@v1.3.0
        with:
          host: "https://gitlab.com"  # GitLab's cloud service, or use your own GitLab instance URL
          token: ${{ secrets.GITLAB_TOKEN }}  # Your GitLab Personal Access Token (with api scope)
          project_id: ${{ secrets.GITLAB_PROJECT_ID }}  # Your GitLab project ID (numeric ID from GitLab)
          debug: true