runner-images/.github/workflows/create_pull_request.yml

name: Create Pull Request

on:
  repository_dispatch:
    types: [create-pr]


jobs:
  Create_pull_request:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
      with:
        fetch-depth: 0

    - name: Clone release branch to create pull request
      run: |
        git checkout ${{ github.event.client_payload.ReleaseBranchName }}
        git branch ${{ github.event.client_payload.ReleaseBranchName }}-docs
        git push origin ${{ github.event.client_payload.ReleaseBranchName }}-docs

    - name: Create pull request for ${{ github.event.client_payload.ReleaseBranchName }}
      uses: actions/github-script@v2
      with:
        github-token: ${{secrets.GITHUB_TOKEN}}
        script: |
          github.pulls.create({
            owner: context.repo.owner,
            repo: context.repo.repo,
            title: "${{ github.event.client_payload.PullRequestTitle }}",
            head: "${{ github.event.client_payload.ReleaseBranchName }}-docs",
            base: "${{ github.event.client_payload.PullRequestBase }}",
            body: `${{ github.event.client_payload.PullRequestBody }}`
          });