Reviewing Cluster Logs
Learn how to review logs and understand events in a cluster.
We'll cover the following...
Handling and reviewing cluster logs in Kubernetes entails accessing control plane and system-level logs using native tools like kubectl. It also involves analyzing log levels, structured JSON format for insights, and utilizing logs to troubleshoot issues, monitor performance, and ensure the security and smooth operation of the entire cluster.
The kube-system namespace
The kube-system namespace is a Kubernetes namespace reserved for system-level components. It hosts essential system services like networking, monitoring, and storage management. Components in this namespace ensure the proper functioning and management of the Kubernetes cluster. Our discussion on cluster logs will revolve around the components in this namespace. We get the components in this namespace with the following command:
kubectl get pods -n kube-system
The above command lists pods that are within our kube-system namespace, and we’ll be explaining them below.
The etcd cluster
The etcd cluster serves as the distributed key-value store for Kubernetes, storing essential ...