EDB Postgres® AI for CloudNativePG™ Global Cluster v2.0.0

The EDB Postgres AI for CloudNativePG Global Cluster operator (also CNPG-GC or PGD4K) is an operator designed to manage EDB Postgres Distributed (PGD) workloads on Kubernetes. The v2.0.0 release and later of PGD4K are designed to manage PGD v6.0.0 and later versions.

The main custom resource that the operator provides is called PGDGroup. Architectures can also be deployed across different Kubernetes clusters.

Before you start

EDB CloudNativePG Global Cluster provides you with a way to deploy EDB Postgres Distributed in a Kubernetes environment. Therefore, we recommend reading the EDB Postgres Distributed documentation.

To start working with EDB Postgres Distributed for Kubernetes, read the following in the PGD documentation:

• Terminology
• PGD overview
• Choosing your architecture

For advanced usage and maximum customization, it's also important to be familiar with the PG4K documentation, as described in Architecture.

Supported Kubernetes distributions

EDB CloudNativePG Global Cluster is available for:

• Kubernetes version 1.33 or later through a Helm chart
• Red Hat OpenShift version 4.16 or later only through the Red Hat OpenShift certified operator

Requirements

EDB CloudNativePG Global Cluster requires that the Kubernetes/OpenShift clusters hosting the distributed PGD cluster were prepared by you to cater for:

• The public key infrastructure (PKI) encompassing all the Kubernetes clusters the PGD global group is spread across. mTLS is required to authenticate and authorize all nodes in the mesh topology and guarantee encrypted communication.
• Networking infrastructure across all Kubernetes clusters involved in the PGD global group to ensure that each node can communicate with each other

EDB CloudNativePG Global Cluster also requires Cert Manager 1.10 or later.

In addition, EDB CloudNativePG Global Cluster requires EDB Postgres AI for CloudNativePG (also PG4K or CNPG) operator v1.28.0 and later to manage each PGD node as a PG4K Cluster.

API reference

For a list of resources provided by EDB CloudNativePG Global Cluster, see the API reference.

Trademarks

Postgres, PostgreSQL, and the Slonik logo are trademarks or registered trademarks of the PostgreSQL Community Association of Canada, and used with their permission.