Cloudflare Workers CI CD

# ❌ OLD (v3)
- uses: cloudflare/wrangler-action@3
  with:
    apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}

# ✅ NEW (v4)
- uses: cloudflare/wrangler-action@v4
  with:
    api-token: ${{ secrets.CLOUDFLARE_API_TOKEN }}

name: Deploy

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

jobs:
  deploy:
    runs-on: ubuntu-latest
    name: Deploy to Cloudflare Workers

    steps:
      - uses: actions/checkout@v4

      - uses: oven-sh/setup-bun@v2
        with:
          bun-version: latest

      - run: bun install

      - run: bun test

      - name: Deploy
        uses: cloudflare/wrangler-action@v4
        with:
          api-token: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          command: deploy

git add .github/workflows/deploy.yml
git commit -m "Add CI/CD pipeline"
git push

# Use GitHub Secrets
api-token: ${{ secrets.CLOUDFLARE_API_TOKEN }}

# ❌ NEVER hardcode tokens
api-token: "abc123def456..."

- run: bun test  # ✅ Tests run first

- name: Deploy
  uses: cloudflare/wrangler-action@v4
  with:
    api-token: ${{ secrets.CLOUDFLARE_API_TOKEN }}

# ❌ Skipping tests
- name: Deploy
  uses: cloudflare/wrangler-action@v4
  # No tests!

# Production (main branch)
- name: Deploy to Production
  if: github.ref == 'refs/heads/main'
  run: bunx wrangler deploy --env production

# Staging (other branches)
- name: Deploy to Staging
  if: github.ref != 'refs/heads/main'
  run: bunx wrangler deploy --env staging

# ❌ Always deploying to production
- run: bunx wrangler deploy

- name: Deploy
  id: deploy
  uses: cloudflare/wrangler-action@v4

- name: Verify Deployment
  run: |
    curl -f https://your-worker.workers.dev/health || exit 1

# ❌ No verification
- name: Deploy
  uses: cloudflare/wrangler-action@v4
  # Assuming it worked...

deploy-production:
  environment:
    name: production
    url: https://your-worker.workers.dev
  # Requires manual approval

# ❌ Auto-deploy to production without review
deploy-production:
  runs-on: ubuntu-latest

{
  "name": "my-worker",
  "main": "src/index.ts",

  "env": {
    "production": {
      "name": "my-worker-production",
      "vars": {
        "ENVIRONMENT": "production"
      }
    },
    "staging": {
      "name": "my-worker-staging",
      "vars": {
        "ENVIRONMENT": "staging"
      }
    }
  }
}

# Local development
wrangler secret put DATABASE_URL

# CI/CD (via GitHub Actions)
bunx wrangler secret put DATABASE_URL --env production <<< "${{ secrets.DATABASE_URL }}"

- name: Deploy Preview
  uses: cloudflare/wrangler-action@v4
  with:
    api-token: ${{ secrets.CLOUDFLARE_API_TOKEN }}
    command: deploy --env preview-${{ github.event.number }}

name: Deploy Production

on:
  push:
    branches: [main]

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: oven-sh/setup-bun@v2
      - run: bun install
      - run: bun test
      - run: bun run build

      - name: Deploy to Production
        uses: cloudflare/wrangler-action@v4
        with:
          api-token: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          command: deploy --env production

name: Preview

on:
  pull_request:
    branches: [main]

jobs:
  preview:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: oven-sh/setup-bun@v2
      - run: bun install
      - run: bun test

      - name: Deploy Preview
        id: deploy
        uses: cloudflare/wrangler-action@v4
        with:
          api-token: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          command: deploy --env preview-${{ github.event.number }}

      - name: Comment PR
        uses: actions/github-script@v7
        with:
          script: |
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: '✅ Preview deployed to: https://my-worker-preview-${{ github.event.number }}.workers.dev'
            })

name: Test

on:
  push:
    branches: ['**']
  pull_request:

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: oven-sh/setup-bun@v2
      - run: bun install
      - run: bun test --coverage

      - name: Upload Coverage
        uses: codecov/codecov-action@v4
        with:
          files: ./coverage/lcov.info

name: Deploy Production (Manual Approval)

on:
  push:
    branches: [main]

jobs:
  deploy:
    runs-on: ubuntu-latest
    environment:
      name: production
      url: https://my-worker.workers.dev
    # Requires manual approval in GitHub Settings

    steps:
      - uses: actions/checkout@v4
      - uses: oven-sh/setup-bun@v2
      - run: bun install
      - run: bun test

      - name: Deploy
        uses: cloudflare/wrangler-action@v4
        with:
          api-token: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          command: deploy --env production

name: Canary Deployment

on:
  workflow_dispatch:
    inputs:
      percentage:
        description: 'Traffic percentage to new version'
        required: true
        default: '10'

jobs:
  canary:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: oven-sh/setup-bun@v2
      - run: bun install

      # Deploy to canary environment
      - name: Deploy Canary
        uses: cloudflare/wrangler-action@v4
        with:
          api-token: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          command: deploy --env canary

      # Configure traffic split via Cloudflare API
      # (See references/deployment-strategies.md for full example)