Add dummy server
diff --git a/core/kg/go.mod b/core/kg/go.mod
index 2b0ae07..5efcf10 100644
--- a/core/kg/go.mod
+++ b/core/kg/go.mod
@@ -5,9 +5,12 @@
 require (
 	github.com/Masterminds/squirrel v1.5.0
 	github.com/jmoiron/sqlx v1.3.1
-	github.com/kr/pretty v0.1.0 // indirect
 	github.com/pkg/errors v0.9.1
-	github.com/stretchr/testify v1.4.0 // indirect
-	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
-	gopkg.in/yaml.v2 v2.4.0 // indirect
+	github.com/spf13/cobra v1.1.3
+	go.uber.org/zap v1.16.0
+	golang.org/x/sys v0.0.0-20200122134326-e047566fdf82 // indirect
+	golang.org/x/tools v0.0.0-20200313205530-4303120df7d8 // indirect
+	google.golang.org/grpc v1.35.0
+	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
+	gopkg.in/natefinch/lumberjack.v2 v2.0.0
 )