8 Troubleshooting Kubernetes
This chapter covers
- Monitoring and viewing logs
- Determining high CPU or RAM usage
- Resolving common cluster problems
- Analyzing network traffic to identify communication concerns
Troubleshooting is the biggest topic (30%) on the CKA exam. So, we will cover troubleshooting in great detail in this chapter. Troubleshooting means fixing problems with applications, control plane components, worker nodes, and the underlying network. When running application pods in Kubernetes, problems will arise, such as concerns with Pods, Services, and Deployments.