Cloud Operations Playbook #15

Code Example

version: "3.9"
services:
  api:
    image: app:latest
    ports:
      - "3000:3000"
    environment:
      NODE_ENV: production
      APP_SCENARIO: "support ticket platform"
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:3000/health"]
      interval: 10s
      timeout: 2s
      retries: 5

# run: ip a

Commands & References

• docker run -p 3000:3000 app:dev
• ls -la
• ip a

Lab Steps

1. Prepare tooling and environment with: docker run -p 3000:3000 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.