init

cmd/manager/main.go

@@ -0,0 +1,93 @@
+package main
+
+import (
+	"context"
+	"database/sql"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"sync"
+	"syscall"
+	"time"
+
+	"deployment-manager/internal/api"
+	"deployment-manager/internal/db"
+	"deployment-manager/internal/events"
+	"deployment-manager/internal/reconciler"
+	"deployment-manager/internal/worker"
+
+	_ "github.com/mattn/go-sqlite3"
+)
+
+const (
+	dbPath        = "./manager.db"
+	maxWorkers    = 2
+	reconcileTick = 2 * time.Second
+)
+
+func main() {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	// ---- graceful shutdown ----
+	sig := make(chan os.Signal, 1)
+	signal.Notify(sig, syscall.SIGINT, syscall.SIGTERM)
+	go func() {
+		<-sig
+		log.Println("shutdown signal received")
+		cancel()
+	}()
+
+	// ---- DB ----
+	database, err := sql.Open("sqlite3", dbPath)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer database.Close()
+
+	if err := db.Migrate(database); err != nil {
+		log.Fatal(err)
+	}
+
+	// ---- channels ----
+	jobQueue := make(chan int64, 100)
+	
+	// ---- event bus ----
+	eventBus := events.NewBus()
+	
+	// Subscribe to events for workers
+	eventChan := eventBus.Subscribe(ctx)
+
+	// ---- worker pool ----
+	var wg sync.WaitGroup
+	for i := 0; i < maxWorkers; i++ {
+		wg.Add(1)
+		go func(id int) {
+			defer wg.Done()
+			w := worker.NewWorker(id, database, eventChan, jobQueue)
+			w.Run(ctx)
+		}(i)
+	}
+
+	// ---- reconciler ----
+	reconciler := reconciler.NewReconciler(database, jobQueue, reconcileTick)
+	go reconciler.Run(ctx)
+
+	// ---- HTTP (API + SSE) ----
+	httpServer := api.NewHTTPServer(database, eventBus)
+	go func() {
+		log.Println("HTTP server listening on :8080")
+		if err := httpServer.Start(":8080"); err != nil && err != http.ErrServerClosed {
+			log.Fatal(err)
+		}
+	}()
+
+	<-ctx.Done()
+	log.Println("shutting down...")
+
+	httpServer.Shutdown(context.Background())
+	close(jobQueue)
+	wg.Wait()
+	log.Println("bye")
+}