changelog

Author: fealebenpae

changelog/20251030_feature_update_mongodb_search_to_use_grpc_and_mtls_for.md

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+---
+kind: feature
+date: 2025-10-30
+---
+
+* *MongoDBSearch*: Switch to gRPC and mTLS for internal communication
+  Since MCK 1.4 the `mongod` and `mongot` processess communicated using the MongoDB Wire Protocol and used keyfile authentication. This release switches that to gRPC with mTLS authentication. gRPC will allow for load-balancing search queries against multiple `mongot` processes in the future, and mTLS decouples the internal cluster authentication mode and credentials among `mongod` processes from the connection to the `mongot` process. The Operator will automatically enable gRPC for existing and new workloads, and will enable mTLS authentication if both Database Server and `MongoDBSearch` resource are configured for TLS.