clusterdatabase-as-a-servicedata-infrastructuregolangkubernetesmanaged-servicesoperatorpostgrespostgres-operatorpostgresql
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README.md
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, PVC)
- Database connection pooling with PGBouncer
- Support fast in place major version upgrade. Supports global upgrade of all clusters.
- Restore and cloning Postgres clusters on AWS, GCS and Azure
- Additionally logical backups to S3 or GCS bucket can be configured
- Standby cluster from S3 or GCS WAL archive
- Configurable for non-cloud environments
- Basic credential and user management on K8s, eases application deployments
- Support for custom TLS certificates
- UI to create and edit Postgres cluster manifests
- Support for AWS EBS gp2 to gp3 migration, supporting iops and throughput configuration
- Compatible with OpenShift
PostgreSQL features
- Supports PostgreSQL 15, starting from 10+
- Streaming replication cluster via Patroni
- Point-In-Time-Recovery with pg_basebackup / WAL-E via Spilo
- Preload libraries: bg_mon, pg_stat_statements, pgextwlist, pg_auth_mon
- Incl. popular Postgres extensions such as decoderbufs, hypopg, pg_cron, pg_partman, pg_stat_kcache, pgq, plpgsql_check, postgis, set_user and timescaledb
The Postgres Operator has been developed at Zalando and is being used in production for over three years.
Supported Postgres & K8s versions
| Release | Postgres versions | K8s versions | Golang |
|---|---|---|---|
| v1.9.* | 10 → 15 | 1.25+ | 1.18.9 |
| v1.8.* | 9.5 → 14 | 1.20 → 1.24 | 1.17.4 |
| v1.7.1 | 9.5 → 14 | 1.20 → 1.24 | 1.16.9 |
Getting started
For a quick first impression follow the instructions of this tutorial.
Supported setups of Postgres and Applications
Documentation
There is a browser-friendly version of this documentation at postgres-operator.readthedocs.io
- How it works
- Installation
- The Postgres experience on K8s
- The Postgres Operator UI
- DBA options - from RBAC to backup
- Build, debug and extend the operator
- Configuration options
- Postgres manifest reference
- Command-line options and environment variables
Community
There are two places to get in touch with the community:
- The GitHub issue tracker
- The #postgres-operator slack channel