| 45 | } |
| 46 | |
| 47 | func Serve(ctx context.Context) error { |
| 48 | log.Info("Start Hub-Agent service.") |
| 49 | |
| 50 | engine := rest.NewEngine() |
| 51 | server := &http.Server{Addr: ":80", Handler: engine} |
| 52 | |
| 53 | // need to get cluster config to init k8s resource |
| 54 | initResource() |
| 55 | |
| 56 | var wg sync.WaitGroup |
| 57 | |
| 58 | wg.Add(1) |
| 59 | go func() { |
| 60 | defer wg.Done() |
| 61 | |
| 62 | <-ctx.Done() |
| 63 | |
| 64 | ctx, cancel := context.WithTimeout(context.TODO(), 5*time.Second) |
| 65 | defer cancel() |
| 66 | |
| 67 | if err := server.Shutdown(ctx); err != nil { |
| 68 | log.Errorf("Failed to stop server, error: %s", err) |
| 69 | } |
| 70 | }() |
| 71 | |
| 72 | wg.Add(1) |
| 73 | go func() { |
| 74 | defer wg.Done() |
| 75 | |
| 76 | err := server.ListenAndServe() |
| 77 | if err != nil && err != http.ErrServerClosed { |
| 78 | log.Errorf("Failed to start http server, error: %s", err) |
| 79 | return |
| 80 | } |
| 81 | }() |
| 82 | |
| 83 | wg.Add(1) |
| 84 | go func() { |
| 85 | defer wg.Done() |
| 86 | |
| 87 | if err := service.Init(ctx); err != nil { |
| 88 | log.Errorf("Failed to init service, error: %s", err) |
| 89 | return |
| 90 | } |
| 91 | }() |
| 92 | |
| 93 | wg.Wait() |
| 94 | |
| 95 | return nil |
| 96 | } |
| 97 | |
| 98 | func initResource() { |
| 99 | token, err := login.GetInternalToken("hub-agent") |