Infrastructure Drill for media processing backend #6

Code Example

name: ci-pipeline
on:
  push:
    branches: [ "main" ]
jobs:
  build-test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Install
        run: npm ci
      - name: Test
        run: npm test
      - name: Build image
        run: docker build -t app:${{ github.sha }} .
      - name: Objective
        run: echo "reduce cloud spend waste"

Commands & References

• docker build -t app:dev .
• docker logs <container>
• systemctl status nginx

Lab Steps

1. Prepare tooling and environment with: docker build -t app:dev .
2. Apply infrastructure or deployment change in a safe test environment.
3. Validate rollout/health/metrics and document observations.
4. Propose one reliability or security improvement for production.

Exercises

• Add one guardrail to prevent faulty deployments.
• Implement one observability signal for faster incident debugging.
• Write a rollback checklist for this scenario.