Certified Kubernetes Application Developer (CKAD) Practice Test

When a Pod's deletion process is initiated, it enters a terminating state. This state allows Kubernetes to gracefully shut down the Pod and cleanly terminate any running processes within it.

During this terminating state, the Pod is not immediately removed from the node; instead, Kubernetes sends a termination signal to the containers within the Pod, giving them an opportunity to finalize their work, complete ongoing requests, or perform any necessary cleanup actions. This is crucial for maintaining application integrity and ensuring that no data is lost during the shutdown process.

Once the termination grace period elapses or the containers exit successfully, the Pod is then removed from the system. This multi-step behavior highlights the design of Kubernetes to manage the lifecycle of applications while minimizing disruption and data loss, which would not be accommodated by simply marking the Pod for deletion or restarting any applications inside it.