Scenario: Your company is deploying a multi-tier web application on Google Cloud. The application consists of a frontend, a backend API, and a database. The frontend and backend run in Google Kubernetes Engine (GKE), while the database is hosted on Cloud SQL. The business requires: Secure communication between the application components Minimal operational overhead for managing SSL certificates Automatic certificate renewal Question: How should you configure secure communication between the frontend, backend, and database while minimizing manual certificate management?