prometheus metrics server

internal/app/app.go

@@ -15,6 +15,7 @@ import (
 	"task-processor/internal/processor"
 	"task-processor/internal/remote"
 	"task-processor/internal/shared"
+	"task-processor/pkg/router"
 	"time"
 )
 
@@ -59,6 +60,13 @@ func (app *App) Run() {
 		"Number of CPUs":  app.numCPUs,
 	}).Debug("App settings")
 
+	//metrics
+	mSrv := router.NewHandler(router.Deps{
+		Addr:    net.JoinHostPort(app.config.Metrics.Host, app.config.Metrics.Port),
+		GinMode: app.config.Metrics.GinMode,
+	})
+
+	//main
 	server := newServer(app)
 	apiClient := newApiClient(app.config.GrpcCfg.ApiClientHost + ":" + app.config.GrpcCfg.ApiClientPort)
 
@@ -133,6 +141,13 @@ func (app *App) Run() {
 		}
 	}()
 
+	//start metrics server
+	go func() {
+		if err := mSrv.Run(); err != nil {
+			log.WithError(err).Error("Metrics server run failed")
+		}
+	}()
+
 	//gRPC Server for status response
 	go func() {
 		listener, err := net.Listen("tcp", app.config.GrpcCfg.ServerHost+":"+app.config.GrpcCfg.ServerPort)
@@ -155,6 +170,10 @@ func (app *App) Run() {
 		period.Stop()
 		server.GracefulStop()
 		cancel()
+		if err := mSrv.Shutdown(ctx); err != nil {
+			log.WithError(err).Error("Failed to shutdown server")
+		}
 	}()
+
 	<-ctx.Done()
 }