vikingowl
00c8b0f18c
Add health endpoints (/healthz, /readyz), graceful shutdown with SIGTERM/SIGINT handling, multi-stage Dockerfile with distroless runtime, and a full Helm chart with security-hardened defaults.
67 lines
1.4 KiB
Go
67 lines
1.4 KiB
Go
package main
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import (
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"context"
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"flag"
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"fmt"
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"log"
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"net/http"
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"os"
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"os/signal"
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"syscall"
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"time"
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"github.com/cnachtigall/heatwave-autopilot/internal/config"
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"github.com/cnachtigall/heatwave-autopilot/internal/server"
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"github.com/cnachtigall/heatwave-autopilot/web"
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)
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func main() {
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port := flag.Int("port", 8080, "HTTP port")
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dev := flag.Bool("dev", false, "development mode (serve from filesystem)")
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flag.Parse()
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cfg := config.Load()
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// Set the embedded filesystem for the server package
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server.WebFS = web.FS
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srv, err := server.New(server.Options{
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Port: *port,
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DevMode: *dev,
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Config: cfg,
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})
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if err != nil {
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fmt.Fprintf(os.Stderr, "Error: %v\n", err)
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os.Exit(1)
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}
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addr := fmt.Sprintf(":%d", *port)
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httpServer := &http.Server{
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Addr: addr,
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Handler: srv.Handler(),
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}
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// Graceful shutdown on SIGTERM/SIGINT
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ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGTERM, syscall.SIGINT)
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defer stop()
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go func() {
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log.Printf("HeatGuard listening on http://localhost%s", addr)
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if err := httpServer.ListenAndServe(); err != nil && err != http.ErrServerClosed {
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log.Fatalf("listen: %v", err)
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}
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}()
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<-ctx.Done()
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log.Println("Shutting down...")
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shutdownCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer cancel()
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if err := httpServer.Shutdown(shutdownCtx); err != nil {
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log.Fatalf("shutdown: %v", err)
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}
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log.Println("Shutdown complete")
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}
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