Backup

etcd is the heart of a Kubernetes cluster - it stores all cluster state including deployments, secrets, configmaps, and PVC definitions. Losing etcd means losing your entire cluster configuration. Yet many homelab setups neglect etcd backups until it’s too late. This post walks through setting up automated etcd backups using a Kubernetes CronJob that uploads snapshots to MinIO. The Challenge etcd runs as a static pod on the control plane node, which makes backing it up trickier than a regular application: ...

How I set up automated cloud backups for my homelab Kubernetes cluster using MinIO and Scaleway, while avoiding US and German cloud providers. The Problem I run a Kubernetes homelab with PostgreSQL and ImmuDB databases. Daily backups run via CronJobs and store compressed dumps in MinIO (self-hosted S3-compatible storage). But what happens if my server dies? All my backups would be gone. I needed offsite cloud backup, but wanted to avoid: ...