chore: initial commit of Go API gateway

Baseline for the Kong replacement on api.riotpiao.com. Brings the working tree under version control for the first time: gateway source, the task board that drives the agent runs, test fixtures, and K8s manifests. Anchor the gateway ignore rule to the repo root. Unanchored, "gateway" also matched the cmd/gateway/ source directory, so the program entrypoint was excluded from every commit. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-08-19 20:54:34 -07:00
commit 058f11cf2b
109 changed files with 8992 additions and 0 deletions
@@ -0,0 +1,76 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/Riotpiaole/homelab-frontend/internal/config"
+	"github.com/Riotpiaole/homelab-frontend/internal/server"
+)
+
+func main() {
+	// Load configuration
+	cfg, err := config.Load()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "failed to load config: %v\n", err)
+		os.Exit(1)
+	}
+
+	// Determine if auth is enabled by checking if any route requires it
+	authEnabled := false
+	for _, route := range cfg.Routes {
+		if route.Upstream.AuthRequired {
+			authEnabled = true
+			break
+		}
+	}
+
+	// Create a basic handler (will be replaced with real routing later)
+	upstreamHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusNotFound)
+		fmt.Fprintf(w, "not found")
+	})
+
+	// Create server with health checker
+	srv := server.New(cfg.ListenAddr, cfg.ShutdownTimeout, nil)
+	
+	// Initialize health checker with config validity and auth status
+	healthChecker := server.NewHealthChecker(true, authEnabled)
+	srv.SetHealthChecker(healthChecker)
+	
+	// Create router that handles health endpoints and passes others to upstream
+	router := server.NewRouter(healthChecker, upstreamHandler)
+	srv.SetHandler(router)
+
+	// Set up signal handling
+	sigChan := make(chan os.Signal, 1)
+	signal.Notify(sigChan, syscall.SIGTERM, syscall.SIGINT)
+
+	// Start server in a goroutine
+	var serverErr error
+	go func() {
+		log.Printf("gateway listening on %s", srv.Addr())
+		serverErr = srv.ListenAndServe()
+		if serverErr != nil && serverErr != http.ErrServerClosed {
+			log.Printf("server error: %v", serverErr)
+		}
+	}()
+
+	// Wait for shutdown signal
+	sig := <-sigChan
+	log.Printf("received signal: %v", sig)
+
+	// Gracefully shutdown the server
+	if err := srv.Shutdown(context.Background()); err != nil {
+		fmt.Fprintf(os.Stderr, "shutdown error: %v\n", err)
+		os.Exit(1)
+	}
+
+	log.Printf("gateway shutdown complete")
+	os.Exit(0)
+}