What command would you use to find the pod that is using the most CPU?

To identify the pod consuming the most CPU, the command kubectl top pod --sort-by cpu is the correct choice. This command utilizes the metrics server to query the current resource usage of all active pods in the cluster and presents the data, sorted specifically by CPU usage.

The kubectl top pod command displays real-time metrics of pods, which is essential for monitoring resource consumption. By using the --sort-by cpu option, it ensures that the output lists the pods in descending order based on their CPU usage, allowing you to quickly identify which pod is utilizing the most CPU resources.

Using other commands would not yield the same result. For instance, kubectl get pod --sort-by cpu would not work because the get command does not natively provide metrics usage; instead, it retrieves the list of pods and can sort by specific fields, but not by their real-time resource usage. Similarly, kubectl describe pod --cpu-usage is not a valid command, as the describe function is intended for detailed inspection of a single pod's specifications and status, rather than resource usage. Lastly, kubectl metrics pod --sort cpu is incorrect since there is no metrics command