Update

cmd/env-controller/main.go

@@ -0,0 +1,55 @@
+package main
+
+import (
+	"context"
+	_ "embed"
+	"flag"
+	"log/slog"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/example/glpi-env-controller/internal/app"
+)
+
+//go:embed page.html
+var pageHTML string
+
+func main() {
+	configPath := flag.String("config", "", "path to controller configuration")
+	flag.Parse()
+	logger := slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelInfo}))
+	resolvedConfigPath, err := app.ResolveConfigPath(*configPath, os.Getenv("ENV_CONTROLLER_CONFIG"))
+	if err != nil {
+		logger.Error("resolve configuration", "error", err)
+		os.Exit(1)
+	}
+	logger.Info("using configuration", "path", resolvedConfigPath)
+	cfg, password, err := app.LoadConfig(resolvedConfigPath)
+	if err != nil {
+		logger.Error("load configuration", "error", err)
+		os.Exit(1)
+	}
+	server, err := app.NewServer(cfg, password, pageHTML, logger)
+	if err != nil {
+		logger.Error("initialize server", "error", err)
+		os.Exit(1)
+	}
+	ctx, cancel := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
+	defer cancel()
+	server.AutoImport(ctx)
+	httpServer := &http.Server{Addr: cfg.ListenAddr, Handler: server.Handler(), ReadHeaderTimeout: 10 * time.Second, ReadTimeout: 30 * time.Second, WriteTimeout: 5 * time.Minute, IdleTimeout: 60 * time.Second, MaxHeaderBytes: 1 << 20}
+	go func() {
+		<-ctx.Done()
+		shutdownCtx, c := context.WithTimeout(context.Background(), 10*time.Second)
+		defer c()
+		_ = httpServer.Shutdown(shutdownCtx)
+	}()
+	logger.Info("env controller listening", "addr", cfg.ListenAddr)
+	if err := httpServer.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+		logger.Error("server stopped", "error", err)
+		os.Exit(1)
+	}
+}