feat: Enable ModelMetadata endpoint (#27)

MLServer and Triton both support the ModelMetadata endpoint, so we should surface it for end users.

Here, the `ModelMetadata` endpoint is enabled in the adapter logic for MLServer and Triton.

Ref: kserve/modelmesh-serving#136



Signed-off-by: Paul Van Eck <[email protected]>

Author: pvaneck

model-mesh-mlserver-adapter/server/server.go

@@ -526,6 +526,7 @@ func (s *MLServerAdapterServer) RuntimeStatus(ctx context.Context, req *mmesh.Ru
 	mis := make(map[string]*mmesh.RuntimeStatusResponse_MethodInfo)
 
 	mis[mlserverServiceName+"/ModelInfer"] = &mmesh.RuntimeStatusResponse_MethodInfo{IdInjectionPath: path1}
+	mis[mlserverServiceName+"/ModelMetadata"] = &mmesh.RuntimeStatusResponse_MethodInfo{IdInjectionPath: path1}
 	runtimeStatus.MethodInfos = mis
 
 	log.Info("runtimeStatus", "Status", runtimeStatus)

model-mesh-triton-adapter/server/server.go

@@ -264,6 +264,7 @@ func (s *TritonAdapterServer) RuntimeStatus(ctx context.Context, req *mmesh.Runt
 
 	// only support Transform for now
 	mis[tritonServiceName+"/ModelInfer"] = &mmesh.RuntimeStatusResponse_MethodInfo{IdInjectionPath: path1}
+	mis[tritonServiceName+"/ModelMetadata"] = &mmesh.RuntimeStatusResponse_MethodInfo{IdInjectionPath: path1}
 	runtimeStatus.MethodInfos = mis
 
 	log.Info("runtimeStatus", "Status", runtimeStatus)