Kubegres is a Kubernetes operator allowing to deploy a cluster of PostgreSql pods with data replication enabled out-of-the box. It brings simplicity when using PostgreSql considering how complex managing stateful-set’s life-cycle and data replication could be with Kubernetes.


  • It creates a cluster of PostgreSql servers with data replication enabled: it creates a Primary PostgreSql pod and a number of Replica PostgreSql pods and replicates primary’s database in real-time to Replica pods.

  • It manages fail-over: if a Primary PostgreSql crashes, it automatically promotes a Replica PostgreSql as a Primary.

  • It has a data backup option allowing to dump PostgreSql data regularly in a given volume.

  • It provides a very simple YAML with properties specialised for PostgreSql.

  • It is resilient, has over 55 automatized tests cases and has been running in production.

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More details

Kubegres was developed by Reactive Tech Limited and Alex Arica as the lead developer. Reactive Tech offers support services for Kubegres, Kubernetes and PostgreSql.

It was developed with the framework Kubebuilder version 3, an SDK for building Kubernetes APIs using CRDs. Kubebuilder is maintained by the official Kubernetes API Machinery Special Interest Group (SIG).

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If you would like to contribute to Kubegres’ documentation, the GIT repo is available here. Any changes to the documentation will update the website https://www.kubegres.io/