Summary: Troubleshooting Further in Kubernetes
Explore detailed techniques for reviewing Kubernetes cluster logs and events, analyzing pod and node logs, and resolving common networking, configuration, ingress, and storage problems. Understand the key kube-system components and backup strategies to maintain cluster reliability and continuity.
Reviewing cluster logs
We explained that 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. We then explained the components of our kube-system below.
etcd: This component is the distributed key-value store for Kubernetes, storing essential configuration data and the cluster’s current state.kindnet: This component is a Kubernetes network plugin responsible for managing networking within the cluster.coredns: This component is Kubernetes’ DNS server, translating service and pod names to IP addresses for seamless communication.kube-apiserver: This component acts as the central control point for the Kubernetes API. It exposes the API to users, applications, and other components, allowing them to interact with the cluster.kube-controller-manager: This component ...