| 37 | } |
| 38 | |
| 39 | func (s *apiServer) Start(ctx context.Context) error { |
| 40 | mux := http.NewServeMux() |
| 41 | mux.Handle("/api/ready", &readyHandler{client: s.client}) |
| 42 | |
| 43 | addr := os.Getenv("API_LISTEN") |
| 44 | if addr == "" { |
| 45 | addr = ":5000" |
| 46 | } |
| 47 | |
| 48 | log.Info("serving API server", "addr", addr) |
| 49 | |
| 50 | srv := &http.Server{ |
| 51 | Addr: addr, |
| 52 | Handler: mux, |
| 53 | } |
| 54 | |
| 55 | done := make(chan struct{}) |
| 56 | go func() { |
| 57 | <-ctx.Done() |
| 58 | log.Info("shutting down API server") |
| 59 | |
| 60 | // TODO: use a context with reasonable timeout |
| 61 | if err := srv.Shutdown(context.Background()); err != nil { |
| 62 | // Error from closing listeners, or context timeout |
| 63 | log.Error(err, "error shutting down the HTTP server") |
| 64 | } |
| 65 | close(done) |
| 66 | }() |
| 67 | |
| 68 | if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed { |
| 69 | return err |
| 70 | } |
| 71 | |
| 72 | <-done |
| 73 | return nil |
| 74 | } |
| 75 | |
| 76 | func (_ *apiServer) NeedLeaderElection() bool { |
| 77 | return false |