clusterdatabase-as-a-servicedata-infrastructuregolangkubernetesmanaged-servicesoperatorpostgrespostgres-operatorpostgresql
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* fix(logical-backup): wait for PG connectivity before running backup The backup script connects to the target PostgreSQL pod immediately after resolving its IP via the Kubernetes API. When NetworkPolicy is enforced via iptables, a newly-created pod's IP may not yet be present in the destination node's ingress allow lists, causing cross-node connections to be rejected until the next policy sync. This adds a pg_isready retry loop before the dump starts, with configurable retries and delay via LOGICAL_BACKUP_CONNECT_RETRIES (default: 10) and LOGICAL_BACKUP_CONNECT_RETRY_DELAY (default: 2s). Signed-off-by: Zadkiel AHARONIAN <zaharonian@ccl-consulting.fr> * docs: document LOGICAL_BACKUP_CONNECT_RETRIES and RETRY_DELAY env vars Document the new environment variables that control the pg_isready retry loop added in the previous commit. These are passed via the existing logical_backup_cronjob_environment_secret mechanism. Signed-off-by: Zadkiel AHARONIAN <zaharonian@ccl-consulting.fr> --------- Signed-off-by: Zadkiel AHARONIAN <zaharonian@ccl-consulting.fr> Co-authored-by: Ida Novindasari <idanovinda@gmail.com> |
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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.
- Pod protection during bootstrap phase and configurable maintenance windows
- 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
- Compatible with OpenShift
PostgreSQL features
- Supports PostgreSQL 18, starting from 14+
- Streaming replication cluster via Patroni
- Point-In-Time-Recovery with pg_basebackup / WAL-G or 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_repack, pg_partman, pg_stat_kcache, pg_audit, pgfaceting, pgq, pgvector, plpgsql_check, plproxy, postgis, roaringbitmap, set_user and timescaledb
The Postgres Operator has been developed at Zalando and is being used in production for over five years.
Supported Postgres & K8s versions
| Release | Postgres versions | K8s versions | Golang |
|---|---|---|---|
| v1.15.1 | 13 → 17 | 1.27+ | 1.25.3 |
| v1.14.0 | 13 → 17 | 1.27+ | 1.23.4 |
| v1.13.0 | 12 → 16 | 1.27+ | 1.22.5 |
| v1.12.0 | 11 → 16 | 1.27+ | 1.22.3 |
| v1.11.0 | 11 → 16 | 1.27+ | 1.21.7 |
| v1.10.1 | 10 → 15 | 1.21+ | 1.19.8 |
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