Feat metrics (#2429)

* feat: register and alert

* feat: grafana

pkg/common/prommetrics/grpc_user.go

@@ -0,0 +1,10 @@
+package prommetrics
+
+import "github.com/prometheus/client_golang/prometheus"
+
+var (
+	UserRegisterCounter = prometheus.NewCounter(prometheus.CounterOpts{
+		Name: "user_register_total",
+		Help: "The number of user login",
+	})
+)

pkg/common/prommetrics/rpc.go

@@ -52,6 +52,8 @@ func GetGrpcCusMetrics(registerName string, share *config.Share) []prometheus.Co
 		return []prometheus.Collector{MsgOfflinePushFailedCounter}
 	case share.RpcRegisterName.Auth:
 		return []prometheus.Collector{UserLoginCounter}
+	case share.RpcRegisterName.User:
+		return []prometheus.Collector{UserRegisterCounter}
 	default:
 		return nil
 	}