OpenSearch Kubernetes Operator 3.0 Alpha delivers production-ready stability with quorum-safe rolling restarts, multi-namespace support, TLS hot reloading, and gRPC support.

BigData Boutique blog

OpenSearch Kubernetes Operator 3.0 Alpha introduces major stability improvements including quorum-safe rolling restarts, multi-namespace support, TLS certificate hot reloading, and gRPC API support. The release addresses critical production issues like upgrade deadlocks, split-brain scenarios, and cluster instability through over 100 changes. Key features include SmartScaler enabled by default, init-container and sidecar support, NFS volumes, and OpenSearch 3.0 compatibility. The API is migrating from opensearch.opster.io to opensearch.org with automatic migration handling. Breaking changes include new security defaults and enabled validation webhooks. The alpha is recommended for testing in lower environments first, with GA release planned after beta testing.

OpenSearch Kubernetes Operator 3.0 - Stability and Resilience Finally Delivered

API Migration: opensearch.opster.io to opensearch.org

Enterprise Support for OpenSearch on Kubernetes