Couchbase Backup / Restore in K8s Environment

The text outlines a comprehensive guide for setting up a periodic backup system for Couchbase clusters using the cbbackupmgr utility within a Kubernetes environment. Emphasizing the importance of regular data backups for disaster recovery and data consistency, it discusses best practices such as provisioning a separate backup node to avoid resource competition with active database nodes and allocating sufficient storage to accommodate multiple snapshots. The guide details a Periodic Merge strategy to minimize database overhead and storage requirements by executing incremental backups, compaction, and merging of old backups. It provides step-by-step instructions to configure storage classes, persistent volumes, and backup repositories, and includes a script to automate these processes using Kubernetes cron jobs. Moreover, it covers the restoration process, allowing for data recovery to a new Couchbase cluster through Kubernetes Jobs, while also recommending regular testing of backup restoration to ensure reliability.