bump_metallb.yml

# Note: If this is failing to create pull requests, it can be triaged
# by inspecting the workflow run under the actions tab in github.

name: Periodic MetalLB Bump
on:
  schedule:
    # every day at 7am & 7pm (GMT+2)
    - cron: "0 5,17 * * *"
jobs:
  bump-metallb-and-create-pr:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Latest Metal LB Operator
        uses: actions/checkout@v3
        with:
          path: metallboperator
      - name: Checkout repository
        uses: actions/checkout@v3
        with:
          repository: metallb/metallb
          path: metallb
          fetch-depth: 0
      - name: Get current metallb commit hash
        id: old-metallb
        run: |
          echo "commit_sha=$(cat metallboperator/hack/metallb_ref.txt)" >> $GITHUB_OUTPUT
      - name: Get old commit info
        id: old-commit-info
        run: |
          cd metallb
          echo "commit_title=$(git log -1 --pretty=%s ${{ steps.old-metallb.outputs.commit_sha }})" >> $GITHUB_OUTPUT
          echo "commit_date=$(git log -n1 --pretty='format:%cd' --date=format:'%Y-%m-%d' ${{ steps.old-metallb.outputs.commit_sha }})" >> $GITHUB_OUTPUT
      - name: Get new commit info
        id: new-commit-info
        run: |
          cd metallb
          echo "commit_sha=$(git rev-parse HEAD)" >> $GITHUB_OUTPUT
          echo "commit_title=$(git log -1 --pretty=%s HEAD)" >> $GITHUB_OUTPUT
          echo "commit_date=$(git log -n1 --pretty='format:%cd' --date=format:'%Y-%m-%d' HEAD)" >> $GITHUB_OUTPUT
      - name: Check if there are changes
        id: check-for-changes
        run: |
          if [[ ${{ steps.old-metallb.outputs.commit_sha }} == ${{ steps.new-commit-info.outputs.commit_sha }} ]]; then
            echo "has_changes=false" >> $GITHUB_OUTPUT
          else
            echo "has_changes=true" >> $GITHUB_OUTPUT
          fi
      - uses: actions/checkout@v3
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
      - name: Bump metallb
        if: ${{ steps.check-for-changes.outputs.has_changes == 'true' }}
        run: make bump_metallb
      - name: Create pull request
        if: ${{ steps.check-for-changes.outputs.has_changes == 'true'}}
        uses: peter-evans/create-pull-request@v5
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          commit-message: |
            Bump MetalLB

            This commit bumps MetalLB:
            from: ${{ steps.old-metallb.outputs.commit_sha }}
            ${{ steps.old-commit-info.outputs.commit_title }} (${{ steps.old-commit-info.outputs.commit_date }})
            
            to:  ${{ steps.new-commit-info.outputs.commit_sha }}
            ${{ steps.new-commit-info.outputs.commit_title }} (${{ steps.new-commit-info.outputs.commit_date }})
          author: github-actions[bot] <noreply@github.com>
          committer: github-actions[bot] <noreply@github.com>
          signoff: true
          title: "Bump MetalLB"
          branch: "bumpmetallb"
          delete-branch: true
          base: "main"