Further reading

Curated, primary-source links. Prefer these over blog posts when versions matter — they track the software you actually deploy.

CloudNativePG

• Documentation (1.29)
• Architecture
• Replication & synchronous replication
• Backup · Recovery · WAL archiving
• Bootstrap (initdb / recovery)
• Image catalogs
• Connection pooling
• Failover · Rolling updates
• Monitoring
• Security
• cnpg kubectl plugin
• Releases & CVE advisories

Barman Cloud Plugin

• Plugin docs
• Object store providers
• Migration from in-tree backup
• Releases

PostgreSQL

• High availability, load balancing & replication
• Write-Ahead Logging
• Continuous archiving & PITR
• pg_hba.conf
• PostgreSQL 18 release notes

Platform: kube-hetzner, k3s, Longhorn, cert-manager

• terraform-hcloud-kube-hetzner · kube.tf.example
• k3s docs · network policy controller
• Longhorn docs · backup & restore · StorageClass parameters
• cert-manager
• Kured

Object storage

• Cloudflare R2 · S3 API compatibility

GitOps & secrets (for Layer 3)

• Argo CD · Flux
• Sealed Secrets · External Secrets Operator

Background reading worth your time

• Gabriele Bartolini — CloudNativePG recipes (the maintainer's deep-dive series, e.g. synchronous replication and dataDurability).