
Worked on the EnterpriseDB/cloudnative-pg repository to deliver a multi-cluster IAM enhancement enabling a Shared ServiceAccount across clusters and poolers. This feature introduced an optional serviceAccountName in ClusterSpec and PoolerSpec, allowing teams to reference and reuse existing ServiceAccounts for all pods, jobs, deployments, and RoleBindings. The implementation, using Go and Kubernetes, included validation to ensure the ServiceAccount exists, enforced immutability, and maintained DNS naming standards. The update supported AWS IRSA, GCP Workload Identity, and Azure Workload Identity, providing a secure, scalable IAM model that reduced configuration drift and operational overhead while maintaining backward compatibility and cross-cloud support.
In March 2026, EnterpriseDB/cloudnative-pg delivered a major multi-cluster IAM enhancement that enables a Shared ServiceAccount across clusters and poolers, reducing per-resource IAM setup and drift. The update introduces an optional serviceAccountName in both ClusterSpec and PoolerSpec, allowing referencing a pre-existing ServiceAccount and reusing it across all pods, jobs, deployments, and RoleBindings. The operator validates the referenced SA exists, avoids creating an operator-managed SA, and enforces immutability and DNS naming rules. This change provides a secure, scalable IAM model with no breaking changes (defaults to the resource name when not specified) and supports cross-cloud identity providers (AWS IRSA, GCP Workload Identity, Azure Workload Identity). Closes issue #10276 and enhances cross-cluster security posture and operational efficiency.
In March 2026, EnterpriseDB/cloudnative-pg delivered a major multi-cluster IAM enhancement that enables a Shared ServiceAccount across clusters and poolers, reducing per-resource IAM setup and drift. The update introduces an optional serviceAccountName in both ClusterSpec and PoolerSpec, allowing referencing a pre-existing ServiceAccount and reusing it across all pods, jobs, deployments, and RoleBindings. The operator validates the referenced SA exists, avoids creating an operator-managed SA, and enforces immutability and DNS naming rules. This change provides a secure, scalable IAM model with no breaking changes (defaults to the resource name when not specified) and supports cross-cloud identity providers (AWS IRSA, GCP Workload Identity, Azure Workload Identity). Closes issue #10276 and enhances cross-cluster security posture and operational efficiency.

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