kill plugin processes when grafana shuts down

pkg/tsdb/models/tsdb_plugin.proto

@@ -3,30 +3,66 @@ option go_package = "proto";
 
 package plugins;
 
+import "google/protobuf/timestamp.proto";
+
 // Message represents a simple message sent to the Echo service.
-message TsdbRequest {
-  int64 from = 1;
-  int64 to = 2;
-  repeated TsdbQuery queries = 3;
-}
-
 message TsdbQuery {
-  string queryJson = 1;
+  Timerange timerange = 1;
+  DatasourceInfo datasource = 2;
+  repeated Query queries = 3;
 }
 
-message TsdbResponse {
-    string error = 1;
-    string errorString = 2;
-    string refId = 3;
-    string metaJson = 4;
-    repeated TsdbSeries series = 5;
-    //repeat TsdbTables tables = x;    
+message Query {
+  string refId = 1;
+  string modelJson = 2;
+  int64 MaxDataPoints = 3;
+  int64 intervalMs = 4;
+  DatasourceInfo datasource = 5;
+}
+
+message Timerange {
+  string from = 1;
+  string to = 2;
+  google.protobuf.Timestamp now = 3;
+}
+
+message Response {
+  string message = 1;
+  repeated QueryResult results = 2;
+}
+
+message QueryResult {
+  string error = 1;
+  string errorString = 2;
+  string refId = 3;
+  string metaJson = 4;
+  repeated TsdbSeries series = 5;
+  //repeat TsdbTables tables = x;    
+}
+
+message DatasourceInfo {
+  string name = 1;
+  string type = 2;
+  string access = 3;
+  string url = 4;
+  bool basicAuth = 5;
+  string basicAuthUser = 6;
+  string basicAuthPassword = 7;
+  string jsonData = 8;
+  string secureJsonData = 9;
 }
 
 message TsdbSeries {
   string name = 1;
+  map<string, string> tags = 2;
+  repeated Point points = 3; 
+}
+
+message Point {
+  google.protobuf.Timestamp timestamp = 1;
+  double value = 2;
 }
 
 service TsdbPlugin {
-    rpc Get(TsdbRequest) returns (TsdbResponse);
+    rpc Query(TsdbQuery) returns (Response);
 }