Galley
Galley is mostly a behind-the-scenes component for gathering and validating user configuration for the other parts of the system. It is a component of Istio's control plane and provides configuration validation, ingestion, processing, and distribution using the Mesh Configuration Protocol (MCP – https://archive.istio.io/v1.3/docs/reference/config/istio.mesh.v1alpha1/). An external service registry, such as Eureka Server in Spring Cloud or Zookeeper for Apache Dubbo, can integrate with the Istio control plane through Galley.
Galley works in the background by providing configuration management services to different Istio components. Galley helps to shield the rest of the Istio components from the specific details of obtaining user configuration ...
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