Google Cloud Associate Cloud Engineer — Question 70

You are using Google Kubernetes Engine with autoscaling enabled to host a new application. You want to expose this new application to the public, using HTTPS on a public IP address. What should you do?

Answer options

• A. Create a Kubernetes Service of type NodePort for your application, and a Kubernetes Ingress to expose this Service via a Cloud Load Balancer.
• B. Create a Kubernetes Service of type ClusterIP for your application. Configure the public DNS name of your application using the IP of this Service.
• C. Create a Kubernetes Service of type NodePort to expose the application on port 443 of each node of the Kubernetes cluster. Configure the public DNS name of your application with the IP of every node of the cluster to achieve load-balancing.
• D. Create a HAProxy pod in the cluster to load-balance the traffic to all the pods of the application. Forward the public traffic to HAProxy with an iptable rule. Configure the DNS name of your application using the public IP of the node HAProxy is running on.

Correct answer: A

Explanation

The correct answer is A because creating a Kubernetes Service of type NodePort along with a Kubernetes Ingress allows for proper exposure of the application via a Cloud Load Balancer, enabling HTTPS access. Option B is incorrect as ClusterIP services are not accessible from outside the cluster. Option C does not provide a scalable solution and requires configuring each node's IP, which is not efficient. Option D introduces unnecessary complexity with HAProxy when Kubernetes Ingress can handle load balancing effectively.