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Dev.to
6/16/2026
PostgreSQL on Kubernetes — Complete Setup Guide with CloudNativePG

PostgreSQL on Kubernetes — Complete Setup Guide with CloudNativePG

Short summary

CloudNativePG, a CNCF-listed PostgreSQL operator, enables production-grade database operations on Kubernetes with HA, automated failover, and Point-in-Time Recovery—significantly narrowing the gap with managed databases. This comprehensive guide covers operator installation, deploying a 3-instance HA cluster, backup/WAL archiving to S3, connection pooling, RBAC/Network Policies, and failover testing. Key takeaway: CloudNativePG is right for teams with Kubernetes expertise seeking operational control and custom PostgreSQL configuration without managed-database costs.

  • CloudNativePG is a CNCF PostgreSQL operator that brings HA, automated failover, and PITR to Kubernetes
  • Complete guide covers installation, 3-instance HA cluster setup, backup/WAL archiving, connection pooling, and security
  • Best for teams wanting operational control and custom PostgreSQL config; managed databases still win on simplicity

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