Web Dev//deploy//CI/CD//GitHub Actions

GitHub's built-in CI/CD system. Workflow files live in `.github/workflows/` as YAML — they run on GitHub's servers when triggered.

GitHub's built-in CI/CD system. Workflow files live in .github/workflows/ as YAML — they run on GitHub's servers when triggered.

Trigger on push, PR, schedule, or manual dispatch. Most common: on: push: branches: [main]

Each workflow has jobs, each job has steps. Steps run shell commands or use pre-built "actions" from the marketplace.

Typical web deploy flow: git push → GitHub Actions triggers → npm ci → npm run build (generates dist/) → deploys dist/ + functions/ to Cloudflare Pages

The deploy pushes code only (frontend + API). It does NOT touch the database. D1 migrations are a separate manual step via Wrangler.

Free tier: 2000 minutes/month for private repos, unlimited for public

Secrets (API keys, tokens) stored in repo settings → available as ${{ secrets.NAME }} in workflows