Postgres Operator

The Postgres Operator delivers an easy to run highly-available PostgreSQL clusters on Kubernetes (K8s) powered by Patroni. It is configured only through Postgres manifests (CRDs) to ease integration into automated CI/CD pipelines with no access to Kubernetes API directly, promoting infrastructure as code vs manual operations.

Operator features

  • Rolling updates on Postgres cluster changes, incl. quick minor version updates
  • Live volume resize without pod restarts (AWS EBS, others pending)
  • Database connection pooler with PGBouncer
  • Restore and cloning Postgres clusters (incl. major version upgrade)
  • Additionally logical backups to S3 bucket can be configured
  • Standby cluster from S3 WAL archive
  • Configurable for non-cloud environments
  • Basic credential and user management on K8s, eases application deployments
  • UI to create and edit Postgres cluster manifests
  • Works well on Amazon AWS, Google Cloud, OpenShift and locally on Kind

PostgreSQL features

The Postgres Operator has been developed at Zalando and is being used in
production for over two years.