Add Remote cluster related API to operator service (#189)

Author: yux0

temporal/api/operatorservice/v1/request_response.proto

@@ -91,3 +91,18 @@ message DeleteWorkflowExecutionRequest {
 // This message is EXPERIMENTAL and may be changed or removed in a later release.
 message DeleteWorkflowExecutionResponse {
 }
+
+message AddOrUpdateRemoteClusterRequest {
+    string frontend_address = 1;
+    bool enable_remote_cluster_connection = 2;
+}
+
+message AddOrUpdateRemoteClusterResponse {
+}
+
+message RemoveRemoteClusterRequest {
+    string cluster_name = 1;
+}
+
+message RemoveRemoteClusterResponse {
+}

temporal/api/operatorservice/v1/service.proto

@@ -74,4 +74,12 @@ service OperatorService {
     //     aip.dev/not-precedent: DeleteNamespace RPC doesn't follow Google API format. --)
     rpc DeleteWorkflowExecution (DeleteWorkflowExecutionRequest) returns (DeleteWorkflowExecutionResponse) {
     }
+
+    // AddOrUpdateRemoteCluster adds or updates remote cluster.
+    rpc AddOrUpdateRemoteCluster(AddOrUpdateRemoteClusterRequest) returns (AddOrUpdateRemoteClusterResponse) {
+    }
+
+    // RemoveRemoteCluster removes remote cluster.
+    rpc RemoveRemoteCluster(RemoveRemoteClusterRequest) returns (RemoveRemoteClusterResponse) {
+    }
 }