7. Backup and restore#
This section describes backup and restore for Nubus for Kubernetes. Having a backup comes in handy when you need it in case of an emergency or disaster. Not having a backup in such a situation turns a disaster into a catastrophe.
This section doesn’t describe the backup and restore for your Kubernetes cluster. Instead, the following sections describe backup and restore of Nubus in its Kubernetes namespace, the requirements for its backup, and how to backup and restore Nubus.
This document doesn’t recommend backing up of only a selection of Nubus components, because restoring them can quickly become complicated with data consistency and synchronization challenges.
For components you use in Nubus that aren’t part of the Nubus deployment through the Helm Chart, you need to design dedicated backup and restore concepts. These components are beyond the scope of this document.
To follow along, the sections provide the following information:
Tip
Create a test deployment of Nubus in your Kubernetes cluster and familiarize yourself with the backup and restore process to ensure that the process works for you and produces the expected results.
Important
The following sections describe an example, and the specific setup depends on the target environment where you deployed Nubus for Kubernetes. It demonstrates how to perform a backup to an S3-compatible storage bucket using Velero. To keep the example simple, this documentation assumes that you have installed Velero and the S3 bucket in the same Kubernetes cluster as Nubus itself.
⚠️ In a practical scenario, it’s highly recommended to place the S3 bucket target outside of the Kubernetes cluster, to allow for recovery in case the entire cluster fails. ⚠️
For more details, refer to the documentation of Velero or the backup tool of your choice.