performance-benchmark.yml

name: Performance Benchmarks

on:
  push:
    branches: [main]
  schedule:
    - cron: '0 2 * * *'
  workflow_dispatch:

jobs:
  benchmark:
    name: API Performance Benchmarks
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'

      - name: Install k6
        run: |
          sudo gpg -k
          sudo gpg --no-default-keyring --keyring /usr/share/keyrings/k6-archive-keyring.gpg \
            --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys C5AD17C747E3415A3642D57D77C6C491D6AC1D69
          echo "deb [signed-by=/usr/share/keyrings/k6-archive-keyring.gpg] https://dl.k6.io/deb stable main" \
            | sudo tee /etc/apt/sources.list.d/k6.list
          sudo apt-get update && sudo apt-get install k6 -y

      - name: Run benchmarks
        env:
          STAGING_URL: ${{ vars.STAGING_URL }}
        run: bash infrastructure/ci/scripts/run-benchmarks.sh

      - name: Upload benchmark results
        uses: actions/upload-artifact@v4
        with:
          name: benchmark-results-${{ github.run_id }}
          path: benchmark-results/

      - name: Check for performance degradation
        run: |
          node -e "
            const results = require('./benchmark-results/summary.json');
            const baselines = require('./infrastructure/ci/benchmark-baselines.json');
            let failed = false;
            for (const [endpoint, metrics] of Object.entries(results)) {
              const baseline = baselines[endpoint];
              if (!baseline) continue;
              const degradation = (metrics.p95 - baseline.p95) / baseline.p95 * 100;
              if (degradation > 10) {
                console.error(\`FAIL: \${endpoint} p95 degraded by \${degradation.toFixed(1)}% (baseline: \${baseline.p95}ms, current: \${metrics.p95}ms)\`);
                failed = true;
              } else {
                console.log(\`OK: \${endpoint} p95=\${metrics.p95}ms (baseline: \${baseline.p95}ms)\`);
              }
            }
            if (failed) process.exit(1);
          "