dev

internal/app/app.go

@@ -1,7 +1,49 @@
 package app
 
-import "fmt"
+import (
+	"flag"
+	"fmt"
+	"log"
+	"net/http"
+
+	"github.com/caarlos0/env"
+	rclient "github.com/khorevaa/ras-client"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+)
+
+var (
+	conf     Config
+	hostFlag string
+	portFlag string
+)
+
+func init() {
+	if err := env.Parse(&conf); err != nil {
+		log.Fatalf("app: config...")
+	}
+
+	flag.StringVar(&hostFlag, "host", "", "cluster host.")
+	flag.StringVar(&portFlag, "port", "", "cluster port.")
+	flag.Parse()
+
+	if hostFlag != "" {
+		conf.Host = hostFlag
+	}
+
+	if portFlag != "" {
+		conf.Port = portFlag
+	}
+}
 
 func Run() error {
+
+	_ = rclient.NewClient(fmt.Sprintf("%s:%s", conf.Host, conf.Port))
+
+	promRegistry := prometheus.NewRegistry()
+	promRegistry.MustRegister()
+	http.Handle("/metrics", promhttp.HandlerFor(promRegistry, promhttp.HandlerOpts{}))
+
 	return fmt.Errorf("app: not implemented")
+
 }