collect-workflow-metrics.yml

name: Collect Workflow Metrics

on:
  schedule:
    # Run every 10 minutes to catch completed workflow runs
    - cron: '*/10 * * * *'
  
  workflow_dispatch:
    inputs:
      lookback_hours:
        description: 'Hours to look back for workflow runs'
        required: false
        default: '3'
        type: string

jobs:
  collect-workflow-metrics:
    runs-on: ubuntu-latest
    environment: main
    
    steps:
      - name: Check out code
        uses: actions/checkout@v4
      
      # Restore deduplication state from previous run
      - name: Restore state cache
        uses: actions/cache/restore@v4
        with:
          path: ./state
          key: workflow-state-${{ github.run_id }}
          restore-keys: |
            workflow-state-
      
      - name: Build and run Docker container
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          OTEL_EXPORTER_OTLP_ENDPOINT: ${{ secrets.OTEL_EXPORTER_OTLP_ENDPOINT }}
          OTEL_EXPORTER_OTLP_HEADERS: ${{ secrets.OTEL_EXPORTER_OTLP_HEADERS }}
          OTEL_EXPORTER_OTLP_PROTOCOL: http/protobuf
          LOOKBACK_HOURS: ${{ inputs.lookback_hours || '3' }}
        run: |
          echo "OTEL_EXPORTER_OTLP_ENDPOINT is set: ${OTEL_EXPORTER_OTLP_ENDPOINT:+true}"
          echo "WORKFLOW_LOOKBACK_HOURS: $LOOKBACK_HOURS"
          docker build -t github-workflow-metrics -f Dockerfile.workflow .
          docker run \
            -e GITHUB_TOKEN="$GITHUB_TOKEN" \
            -e OTEL_EXPORTER_OTLP_ENDPOINT="$OTEL_EXPORTER_OTLP_ENDPOINT" \
            -e OTEL_EXPORTER_OTLP_HEADERS="$OTEL_EXPORTER_OTLP_HEADERS" \
            -e OTEL_EXPORTER_OTLP_PROTOCOL="$OTEL_EXPORTER_OTLP_PROTOCOL" \
            -e WORKFLOW_LOOKBACK_HOURS="$LOOKBACK_HOURS" \
            -v "$(pwd)/state:/app/state" \
            github-workflow-metrics
      
      # Save state for next run (always run even if previous steps fail)
      - name: Save state cache
        if: always()
        uses: actions/cache/save@v4
        with:
          path: ./state
          key: workflow-state-${{ github.run_id }}
      
      - name: Upload state as artifact (for debugging)
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: workflow-state
          path: ./state/processed_workflow_runs.json
          retention-days: 7
          if-no-files-found: ignore