Event inspection for diagnostics in Kubernetes - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of inspecting events in Kubernetes?

Inspecting events helps you understand what is happening inside your cluster, such as errors, warnings, or status changes of resources. It is useful for troubleshooting and diagnostics.

beginner

Which command lists recent events in a Kubernetes cluster?

kubectl get events

intermediate

How can you sort Kubernetes events by the most recent first?

Use the command: kubectl get events --sort-by=.metadata.creationTimestamp

beginner

What information does a Kubernetes event typically include?

A Kubernetes event includes the involved object, type (Normal or Warning), reason, message, source, and timestamp.

intermediate

How do you filter events for a specific pod named 'my-pod'?

Use: kubectl get events --field-selector involvedObject.name=my-pod

Which command shows all events in the default namespace?

A kubectl get events

B kubectl describe pod

C kubectl logs

D kubectl get pods

kubectl get events lists all events in the current namespace, which is default if none specified.

What does the 'Warning' type in a Kubernetes event indicate?

A A normal status update

B A successful operation

C A scheduled job

D An error or problem

Warning events indicate errors or issues that need attention.

How do you sort events by time to see the newest first?

A kubectl get events --reverse

B kubectl get events --latest

C kubectl get events --sort-by=.metadata.creationTimestamp

D kubectl get events --time-sort

The --sort-by option with .metadata.creationTimestamp sorts events by creation time.

Which field selector filters events for a specific pod?

A metadata.name

B involvedObject.name

C status.phase

D spec.nodeName

involvedObject.name filters events related to a specific Kubernetes object like a pod.

What is NOT typically included in a Kubernetes event?

A Pod logs

B Event timestamp

C Involved object

D Event reason

Pod logs are separate and not part of event details.

Explain how to use Kubernetes events to diagnose a pod that is not starting.

Think about how events tell you what happened to the pod.

Describe the key fields you see in a Kubernetes event and why they matter for troubleshooting.

These fields help you understand what happened, when, and why.