# CloudNative Postgres

CloudNative Postgres uses an Operator to watch for new database cluster- and backup- definitions as provided by CRDs.


# Operator

The operator is deployed via helm release


# Barman Cloud Plugin

CloudNativePG's in-tree Barman Cloud integration is deprecated; backups/WAL archiving are handled by the Barman Cloud plugin.

This repo installs the plugin as a separate Flux app under `cloudnative-pg/barman`.


# Cluster & Backups

Local storage is used by default; S3-compatible storage can be used as a live WAL backup.


# Restore

[k8s-at-home discussion](https://discord.com/channels/673534664354430999/1036720267474509885)

> On versioning: If you end up with an older cloudnative pg backup (i.e. i have a pg14 one) but you're using a newer operator that defaults to newer (i.e. \> 15.1), you wont be able to restore as it will whine about versions. Add an image tag to the cluster spec to deploy a second cluster with a specifically downgraded ver to restore without having to juggle around changing the operator helm etc


# CLI

Install the [kubectl plugin](https://cloudnative-pg.io/documentation/1.18/cnpg-plugin/)

> **Note**
>
> Source: [`kubernetes/apps/database/cloudnative-pg/operator/README.md`](https://github.com/ahgraber/homelab-gitops-k3s/blob/main/kubernetes/apps/database/cloudnative-pg/operator/README.md)