Top 10 Kubernetes Issues and How to Troubleshoot Them Like a Pro

Dealing the complexities of Kubernetes can be challenging, especially when dealing with common issues that can disrupt your workloads.
Here’s a technical guide on the most frequent Kubernetes problems and effective troubleshooting steps to resolve them.

1. CrashLoopBackOff

Description: A pod repeatedly crashes and restarts, often indicating an issue with the application or configuration.

Troubleshooting:

• Inspect pod logs: kubectl logs <pod-name>.
• Describe the pod for detailed status and events: kubectl describe pod <pod-name>.
• Review the application’s start-up and initialization code for errors or misconfigurations.

2. ImagePullBackOff

Description: Kubernetes fails to pull the container image from the registry.

Troubleshooting:

• Verify the image name and tag are correct.

kubectl get pods -n <namespace> | grep Image

• Check image registry credentials and permissions if using private registry, the credentials should be stored in the secrets/configmaps and should be mapped to the deployments.
• Confirm the image…