rerun-workflows.yml

name: Re-run Flaky Workflows

on:
  workflow_run:
    workflows: [Backend, Driver Tests, E2E Tests, Frontend]
    types: [completed]
    branches: [master, 'release-x.**', 'backport-**']

jobs:
  rerun-on-failure:
    name: 'Re-run ''${{ github.event.workflow_run.name }}'' workflow'
    runs-on: ubuntu-22.04
    # Do not re-run scheduled workflow runs. That's only Replay.io E2E tests for now.
    if: github.event.workflow_run.conclusion == 'failure' && github.event.workflow_run.event != 'schedule'
    env:
      BRANCH_NAME: ${{ github.event.workflow_run.head_branch }}
      AUTHOR_NAME: ${{ github.event.workflow_run.head_commit.author.name }}
    steps:
      - name: Generate job summary
        run: |
          echo "# ${{ github.event.workflow_run.name }} workflow failed! :x:" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "View the failed run attempt (#${{ github.event.workflow_run.run_attempt }}) using the following link:" >> $GITHUB_STEP_SUMMARY
          echo "${{ github.event.workflow_run.html_url }}" >> $GITHUB_STEP_SUMMARY

      - uses: actions/setup-node@v3
        with:
          node-version: lts/Hydrogen # 18.x.x
      - run: npm install @slack/web-api
      - name: Trigger a re-run
        uses: actions/github-script@v6
        with:
          script: | # js
            const MAX_ATTEMPTS = 2;
            const ATTEMPT = "${{ github.event.workflow_run.run_attempt }}";
            const FAILED_RUN_URL = "${{ github.event.workflow_run.html_url }}";
            const FAILED_RUN_NAME = "${{ github.event.workflow_run.name }}";
            const BREAKING_COMMIT = "${{ github.event.workflow_run.head_sha }}";
            const AUTHOR = process.env.AUTHOR_NAME;
            const BRANCH = process.env.BRANCH_NAME;

            if (ATTEMPT <= MAX_ATTEMPTS) {
              github.rest.actions.reRunWorkflowFailedJobs({
                owner: context.repo.owner,
                repo: context.repo.repo,
                run_id: ${{ github.event.workflow_run.id }},
              });
            } else {
              // notify slack of repeated failure
              const { WebClient } = require('@slack/web-api');
              const slack = new WebClient('${{ secrets.SLACK_BOT_TOKEN }}');

              await slack.chat.postMessage({
                channel: 'engineering-ci',
                text: 'Failing tests',
                blocks: [
                  {
                    "type": "header",
                    "text": {
                      "type": "plain_text",
                      "text": `:warning: CI is failing on ${BRANCH}`,
                      "emoji": true,
                    }
                  },
                ],
                attachments: [{
                  color: BRANCH === 'master' ? '#f85149' : "#ffce33",
                  blocks: [
                    {
                      "type": "section",
                      "text": {
                        "type": "mrkdwn",
                        "text": `Commit <https://github.com/metabase/metabase/commit/${BREAKING_COMMIT}|${BREAKING_COMMIT.slice(0,7)}> by ${AUTHOR} has failing <${FAILED_RUN_URL}|${FAILED_RUN_NAME}> tests on the <https://github.com/metabase/metabase/commits/${BRANCH}|\`${BRANCH}\`> branch. :sad-panda:`
                      }
                    },
                  ]
                }]
              });
            }