Init

cmd/gateway/main.go

@@ -0,0 +1,68 @@
+package main
+
+import (
+	"context"
+	"log/slog"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/telemt/telemt-api/internal/config"
+	"github.com/telemt/telemt-api/internal/server"
+)
+
+func main() {
+	log := slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelInfo}))
+
+	cfgPath := os.Getenv("CONFIG_PATH")
+	if cfgPath == "" {
+		cfgPath = "/etc/telemt-gateway/config.yaml"
+	}
+	cfg, err := config.Load(cfgPath)
+	if err != nil {
+		log.Error("config load failed", "path", cfgPath, "err", err)
+		os.Exit(1)
+	}
+	parsed, err := cfg.Parse()
+	if err != nil {
+		log.Error("config parse failed", "err", err)
+		os.Exit(1)
+	}
+
+	gw, err := server.NewGateway(parsed, log)
+	if err != nil {
+		log.Error("gateway init failed", "err", err)
+		os.Exit(1)
+	}
+
+	srv := &http.Server{
+		Addr:              parsed.Config.Listen,
+		Handler:           gw.Handler(),
+		ReadHeaderTimeout: 10 * time.Second,
+		ReadTimeout:       0,
+		WriteTimeout:      0,
+		IdleTimeout:       120 * time.Second,
+	}
+
+	go func() {
+		log.Info("listening", "addr", parsed.Config.Listen)
+		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+			log.Error("server error", "err", err)
+			os.Exit(1)
+		}
+	}()
+
+	sig := make(chan os.Signal, 1)
+	signal.Notify(sig, syscall.SIGINT, syscall.SIGTERM)
+	<-sig
+	log.Info("shutdown signal")
+
+	ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
+	defer cancel()
+	_ = gw.Shutdown(ctx)
+	if err := srv.Shutdown(ctx); err != nil {
+		log.Error("shutdown error", "err", err)
+	}
+}