feat: mail service

mail/cmd/mail/main.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"galaxy/mail/internal/app"
+	"galaxy/mail/internal/config"
+	"galaxy/mail/internal/logging"
+)
+
+func main() {
+	if err := run(); err != nil {
+		_, _ = fmt.Fprintf(os.Stderr, "mail: %v\n", err)
+		os.Exit(1)
+	}
+}
+
+func run() error {
+	cfg, err := config.LoadFromEnv()
+	if err != nil {
+		return err
+	}
+
+	logger, err := logging.New(cfg.Logging.Level)
+	if err != nil {
+		return err
+	}
+
+	rootCtx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
+	defer stop()
+
+	runtime, err := app.NewRuntime(rootCtx, cfg, logger)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		_ = runtime.Close()
+	}()
+
+	return runtime.Run(rootCtx)
+}