Maintaining Kubernetes Clusters – Day 2 Tasks

In the following sections, we will highlight the standard Kubernetes maintenance tasks such as backup, upgrade, multi-cluster management, and so on.

Kubernetes Cluster Backup and Restore

Kubernetes backup and restore is a significant concern for ensuring data integrity and business continuity in any production environment. Of all the crucial elements that must be part of the backup scope in a Kubernetes cluster, the most essential one is the etcd, or the key-value store where all the critical configurations and states of the cluster are stored. etcd backup for on-premise or self-managed clusters involves taking snapshots and securely storing them.

Taking Backup of etcd

Backing up an etcd cluster is essential to the integrity of all Kubernetes objects because the etcd stores your entire Kubernetes cluster state. Regular backups let you restore your cluster if you lose all control plane nodes. The backup process creates...