[feature] dashboard (#2361)

cmd/dashboard/handler/statistics/models.go

@@ -0,0 +1,16 @@
+package statistics
+
+type getSummaryResponse struct {
+	Registry registrySummary `json:"registry"`
+	Services servicesSummary `json:"services"`
+}
+
+type registrySummary struct {
+	Type  string   `json:"type"`
+	Addrs []string `json:"addrs"`
+}
+
+type servicesSummary struct {
+	Count      int `json:"count"`
+	NodesCount int `json:"nodes_count"`
+}