Golang util.GenerateSelfSignedCert函數代碼示例

// InitializeTLS checks for a configured TLSCertFile and TLSPrivateKeyFile: if unspecified a new self-signed
// certificate and key file are generated. Returns a configured kubelet.TLSOptions object.
func (s *KubeletServer) InitializeTLS() (*kubelet.TLSOptions, error) {
	if s.TLSCertFile == "" && s.TLSPrivateKeyFile == "" {
		s.TLSCertFile = path.Join(s.CertDirectory, "kubelet.crt")
		s.TLSPrivateKeyFile = path.Join(s.CertDirectory, "kubelet.key")
		if err := util.GenerateSelfSignedCert(nodeutil.GetHostname(s.HostnameOverride), s.TLSCertFile, s.TLSPrivateKeyFile, nil, nil); err != nil {
			return nil, fmt.Errorf("unable to generate self signed cert: %v", err)
		}
		glog.V(4).Infof("Using self-signed cert (%s, %s)", s.TLSCertFile, s.TLSPrivateKeyFile)
	}
	tlsOptions := &kubelet.TLSOptions{
		Config: &tls.Config{
			// Change default from SSLv3 to TLSv1.0 (because of POODLE vulnerability).
			MinVersion: tls.VersionTLS10,
			// Populate PeerCertificates in requests, but don't yet reject connections without certificates.
			ClientAuth: tls.RequestClientCert,
		},
		CertFile: s.TLSCertFile,
		KeyFile:  s.TLSPrivateKeyFile,
	}
	return tlsOptions, nil
}

//.........這裏部分代碼省略.........
		ProxyTLSClientConfig:      proxyTLSClientConfig,
		Tunneler:                  tunneler,
		ServiceNodePortRange:      s.ServiceNodePortRange,
		KubernetesServiceNodePort: s.KubernetesServiceNodePort,
	}
	m := master.New(config)

	// We serve on 2 ports.  See docs/accessing_the_api.md
	secureLocation := ""
	if s.SecurePort != 0 {
		secureLocation = net.JoinHostPort(s.BindAddress.String(), strconv.Itoa(s.SecurePort))
	}
	insecureLocation := net.JoinHostPort(s.InsecureBindAddress.String(), strconv.Itoa(s.InsecurePort))

	// See the flag commentary to understand our assumptions when opening the read-only and read-write ports.

	var sem chan bool
	if s.MaxRequestsInFlight > 0 {
		sem = make(chan bool, s.MaxRequestsInFlight)
	}

	longRunningRE := regexp.MustCompile(s.LongRunningRequestRE)
	longRunningTimeout := func(req *http.Request) (<-chan time.Time, string) {
		// TODO unify this with apiserver.MaxInFlightLimit
		if longRunningRE.MatchString(req.URL.Path) || req.URL.Query().Get("watch") == "true" {
			return nil, ""
		}
		return time.After(time.Minute), ""
	}

	if secureLocation != "" {
		handler := apiserver.TimeoutHandler(m.Handler, longRunningTimeout)
		secureServer := &http.Server{
			Addr:           secureLocation,
			Handler:        apiserver.MaxInFlightLimit(sem, longRunningRE, apiserver.RecoverPanics(handler)),
			MaxHeaderBytes: 1 << 20,
			TLSConfig: &tls.Config{
				// Change default from SSLv3 to TLSv1.0 (because of POODLE vulnerability)
				MinVersion: tls.VersionTLS10,
			},
		}

		if len(s.ClientCAFile) > 0 {
			clientCAs, err := util.CertPoolFromFile(s.ClientCAFile)
			if err != nil {
				glog.Fatalf("Unable to load client CA file: %v", err)
			}
			// Populate PeerCertificates in requests, but don't reject connections without certificates
			// This allows certificates to be validated by authenticators, while still allowing other auth types
			secureServer.TLSConfig.ClientAuth = tls.RequestClientCert
			// Specify allowed CAs for client certificates
			secureServer.TLSConfig.ClientCAs = clientCAs
		}

		glog.Infof("Serving securely on %s", secureLocation)
		if s.TLSCertFile == "" && s.TLSPrivateKeyFile == "" {
			s.TLSCertFile = path.Join(s.CertDirectory, "apiserver.crt")
			s.TLSPrivateKeyFile = path.Join(s.CertDirectory, "apiserver.key")
			// TODO (cjcullen): Is PublicAddress the right address to sign a cert with?
			alternateIPs := []net.IP{config.ServiceReadWriteIP}
			alternateDNS := []string{"kubernetes.default.svc", "kubernetes.default", "kubernetes"}
			// It would be nice to set a fqdn subject alt name, but only the kubelets know, the apiserver is clueless
			// alternateDNS = append(alternateDNS, "kubernetes.default.svc.CLUSTER.DNS.NAME")
			if err := util.GenerateSelfSignedCert(config.PublicAddress.String(), s.TLSCertFile, s.TLSPrivateKeyFile, alternateIPs, alternateDNS); err != nil {
				glog.Errorf("Unable to generate self signed cert: %v", err)
			} else {
				glog.Infof("Using self-signed cert (%s, %s)", s.TLSCertFile, s.TLSPrivateKeyFile)
			}
		}

		go func() {
			defer util.HandleCrash()
			for {
				// err == systemd.SdNotifyNoSocket when not running on a systemd system
				if err := systemd.SdNotify("READY=1\n"); err != nil && err != systemd.SdNotifyNoSocket {
					glog.Errorf("Unable to send systemd daemon successful start message: %v\n", err)
				}
				if err := secureServer.ListenAndServeTLS(s.TLSCertFile, s.TLSPrivateKeyFile); err != nil {
					glog.Errorf("Unable to listen for secure (%v); will try again.", err)
				}
				time.Sleep(15 * time.Second)
			}
		}()
	}
	handler := apiserver.TimeoutHandler(m.InsecureHandler, longRunningTimeout)
	http := &http.Server{
		Addr:           insecureLocation,
		Handler:        apiserver.RecoverPanics(handler),
		MaxHeaderBytes: 1 << 20,
	}
	if secureLocation == "" {
		// err == systemd.SdNotifyNoSocket when not running on a systemd system
		if err := systemd.SdNotify("READY=1\n"); err != nil && err != systemd.SdNotifyNoSocket {
			glog.Errorf("Unable to send systemd daemon successful start message: %v\n", err)
		}
	}
	glog.Infof("Serving insecurely on %s", insecureLocation)
	glog.Fatal(http.ListenAndServe())
	return nil
}

func main() {
	defer glog.Flush()

	flag.StringVar(&kubeclient.KubeConfigFile, "kubeconfig", "kubeconfig.json", "Specify the target API server")
	flag.Set("logtostderr", "true")
	flag.Parse()

	kubeclient.Init()
	portMapping = regexp.MustCompile(`PortMapping\((.*)\)`)

	r := gin.Default()
	r.Static("/js", "js")
	r.Static("/css", "css")
	r.Static("/fonts", "fonts")
	r.Static("/img", "img")
	r.LoadHTMLGlob("pages/*.html")

	a := r.Group("/", gin.BasicAuth(gin.Accounts{
		"admin":    "secretsigma",
		"bamboo":   "oobmab",
		"default":  "test123",
		"rds":      "rrddss",
		"rds-test": "rrddsstt",
	}))

	a.GET("/", overview)
	a.GET("/namespaces/:ns", listOthersInNamespace)
	a.GET("/namespaces/:ns/pods", listPodsInNamespace)
	a.GET("/namespaces/:ns/pods/:po", describePod)
	a.GET("/namespaces/:ns/pods/:po/log", readPodLog)
	a.GET("/namespaces/:ns/pods/:po/containers/:ct/log", readContainerLog)
	a.GET("/namespaces/:ns/pods/:po/edit", editPod)
	a.GET("/namespaces/:ns/replicationcontrollers/:rc/edit", editReplicationController)
	a.GET("/namespaces/:ns/services/:svc/edit", editService)
	a.GET("/namespaces/:ns/endpoints/:ep/edit", editEndpoints)
	a.GET("/nodes/:no/edit", editNode)
	a.GET("/namespaces/:ns/events", listEventsInNamespace)
	a.GET("/nodes", listNodes)
	a.GET("/nodes/:no", describeNode)
	a.GET("/help", help)
	a.GET("/config", config)

	a.GET("/namespaces/:ns/replicationcontrollers.form", showReplicationControllerForm)
	a.POST("/namespaces/:ns/replicationcontrollers", createReplicationController)

	a.GET("/namespaces/:ns/services.form", showServiceForm)
	a.POST("/namespaces/:ns/services", createService)

	a.POST("/namespaces/:ns/pods.form", showPodsForm)
	a.POST("/namespaces/:ns/pods", performPodsAction)

	a.POST("/config/update", updateConfig)
	a.POST("/namespaces/:ns/pods/:po/update", updatePod)
	a.POST("/namespaces/:ns/pods/:po/export", updateReplicationControllerWithPod)
	a.POST("/namespaces/:ns/pods/:po/import", updatePodWithReplicationController)
	a.POST("/namespaces/:ns/services/:svc/update", updateService)
	a.POST("/namespaces/:ns/services/:svc/delete", deleteService)
	a.POST("/namespaces/:ns/endpoints/:ep/update", updateEndpoints)
	a.POST("/namespaces/:ns/endpoints/:ep/delete", deleteEndpoints)
	a.POST("/namespaces/:ns/replicationcontrollers/:rc/update", updateReplicationController)
	a.POST("/namespaces/:ns/replicationcontrollers/:rc/delete", deleteReplicationController)
	a.POST("/nodes/:no/update", updateNode)
	a.POST("/nodes/:no/delete", deleteNode)

	certFile := "kubecon.crt"
	keyFile := "kubecon.key"
	alternateIPs := []net.IP{net.ParseIP("61.160.36.122")}
	alternateDNS := []string{"kubecon"}
	if err := util.GenerateSelfSignedCert("61.160.36.122", certFile, keyFile, alternateIPs, alternateDNS); err != nil {
		glog.Errorf("Unable to generate self signed cert: %v", err)
	} else {
		glog.Infof("Using self-signed cert (%s, %s)", certFile, keyFile)
	}
	r.RunTLS(":8080", certFile, keyFile)
}

//.........這裏部分代碼省略.........
		MinRequestTimeout:      s.MinRequestTimeout,
		SSHUser:                s.SSHUser,
		SSHKeyfile:             s.SSHKeyfile,
		InstallSSHKey:          installSSH,
		ServiceNodePortRange:   s.ServiceNodePortRange,
	}
	m := master.New(config)

	// We serve on 2 ports.  See docs/accessing_the_api.md
	secureLocation := ""
	if s.SecurePort != 0 {
		secureLocation = net.JoinHostPort(s.BindAddress.String(), strconv.Itoa(s.SecurePort))
	}
	insecureLocation := net.JoinHostPort(s.InsecureBindAddress.String(), strconv.Itoa(s.InsecurePort))

	// See the flag commentary to understand our assumptions when opening the read-only and read-write ports.

	var sem chan bool
	if s.MaxRequestsInFlight > 0 {
		sem = make(chan bool, s.MaxRequestsInFlight)
	}

	longRunningRE := regexp.MustCompile(s.LongRunningRequestRE)
	longRunningTimeout := func(req *http.Request) (<-chan time.Time, string) {
		// TODO unify this with apiserver.MaxInFlightLimit
		if longRunningRE.MatchString(req.URL.Path) || req.URL.Query().Get("watch") == "true" {
			return nil, ""
		}
		return time.After(time.Minute), ""
	}

	if secureLocation != "" {
		handler := apiserver.TimeoutHandler(m.Handler, longRunningTimeout)
		secureServer := &http.Server{
			Addr:           secureLocation,
			Handler:        apiserver.MaxInFlightLimit(sem, longRunningRE, apiserver.RecoverPanics(handler)),
			MaxHeaderBytes: 1 << 20,
			TLSConfig: &tls.Config{
				// Change default from SSLv3 to TLSv1.0 (because of POODLE vulnerability)
				MinVersion: tls.VersionTLS10,
			},
		}

		if len(s.ClientCAFile) > 0 {
			clientCAs, err := util.CertPoolFromFile(s.ClientCAFile)
			if err != nil {
				glog.Fatalf("unable to load client CA file: %v", err)
			}
			// Populate PeerCertificates in requests, but don't reject connections without certificates
			// This allows certificates to be validated by authenticators, while still allowing other auth types
			secureServer.TLSConfig.ClientAuth = tls.RequestClientCert
			// Specify allowed CAs for client certificates
			secureServer.TLSConfig.ClientCAs = clientCAs
		}

		glog.Infof("Serving securely on %s", secureLocation)
		go func() {
			defer util.HandleCrash()
			for {
				if s.TLSCertFile == "" && s.TLSPrivateKeyFile == "" {
					s.TLSCertFile = path.Join(s.CertDirectory, "apiserver.crt")
					s.TLSPrivateKeyFile = path.Join(s.CertDirectory, "apiserver.key")
					// TODO (cjcullen): Is PublicAddress the right address to sign a cert with?
					alternateIPs := []net.IP{config.ServiceReadWriteIP}
					alternateDNS := []string{"kubernetes.default.svc", "kubernetes.default", "kubernetes"}
					// It would be nice to set a fqdn subject alt name, but only the kubelets know, the apiserver is clueless
					// alternateDNS = append(alternateDNS, "kubernetes.default.svc.CLUSTER.DNS.NAME")
					if err := util.GenerateSelfSignedCert(config.PublicAddress.String(), s.TLSCertFile, s.TLSPrivateKeyFile, alternateIPs, alternateDNS); err != nil {
						glog.Errorf("Unable to generate self signed cert: %v", err)
					} else {
						glog.Infof("Using self-signed cert (%s, %s)", s.TLSCertFile, s.TLSPrivateKeyFile)
					}
				}
				// err == systemd.SdNotifyNoSocket when not running on a systemd system
				if err := systemd.SdNotify("READY=1\n"); err != nil && err != systemd.SdNotifyNoSocket {
					glog.Errorf("Unable to send systemd daemon successful start message: %v\n", err)
				}
				if err := secureServer.ListenAndServeTLS(s.TLSCertFile, s.TLSPrivateKeyFile); err != nil {
					glog.Errorf("Unable to listen for secure (%v); will try again.", err)
				}
				time.Sleep(15 * time.Second)
			}
		}()
	}
	handler := apiserver.TimeoutHandler(m.InsecureHandler, longRunningTimeout)
	http := &http.Server{
		Addr:           insecureLocation,
		Handler:        apiserver.RecoverPanics(handler),
		MaxHeaderBytes: 1 << 20,
	}
	if secureLocation == "" {
		// err == systemd.SdNotifyNoSocket when not running on a systemd system
		if err := systemd.SdNotify("READY=1\n"); err != nil && err != systemd.SdNotifyNoSocket {
			glog.Errorf("Unable to send systemd daemon successful start message: %v\n", err)
		}
	}
	glog.Infof("Serving insecurely on %s", insecureLocation)
	glog.Fatal(http.ListenAndServe())
	return nil
}

func (s *GenericAPIServer) Run(options *ServerRunOptions) {
	// We serve on 2 ports.  See docs/accessing_the_api.md
	secureLocation := ""
	if options.SecurePort != 0 {
		secureLocation = net.JoinHostPort(options.BindAddress.String(), strconv.Itoa(options.SecurePort))
	}
	insecureLocation := net.JoinHostPort(options.InsecureBindAddress.String(), strconv.Itoa(options.InsecurePort))

	var sem chan bool
	if options.MaxRequestsInFlight > 0 {
		sem = make(chan bool, options.MaxRequestsInFlight)
	}

	longRunningRE := regexp.MustCompile(options.LongRunningRequestRE)
	longRunningRequestCheck := apiserver.BasicLongRunningRequestCheck(longRunningRE, map[string]string{"watch": "true"})
	longRunningTimeout := func(req *http.Request) (<-chan time.Time, string) {
		// TODO unify this with apiserver.MaxInFlightLimit
		if longRunningRequestCheck(req) {
			return nil, ""
		}
		return time.After(time.Minute), ""
	}

	if secureLocation != "" {
		handler := apiserver.TimeoutHandler(s.Handler, longRunningTimeout)
		secureServer := &http.Server{
			Addr:           secureLocation,
			Handler:        apiserver.MaxInFlightLimit(sem, longRunningRequestCheck, apiserver.RecoverPanics(handler)),
			MaxHeaderBytes: 1 << 20,
			TLSConfig: &tls.Config{
				// Change default from SSLv3 to TLSv1.0 (because of POODLE vulnerability)
				MinVersion: tls.VersionTLS10,
			},
		}

		if len(options.ClientCAFile) > 0 {
			clientCAs, err := util.CertPoolFromFile(options.ClientCAFile)
			if err != nil {
				glog.Fatalf("Unable to load client CA file: %v", err)
			}
			// Populate PeerCertificates in requests, but don't reject connections without certificates
			// This allows certificates to be validated by authenticators, while still allowing other auth types
			secureServer.TLSConfig.ClientAuth = tls.RequestClientCert
			// Specify allowed CAs for client certificates
			secureServer.TLSConfig.ClientCAs = clientCAs
		}

		glog.Infof("Serving securely on %s", secureLocation)
		if options.TLSCertFile == "" && options.TLSPrivateKeyFile == "" {
			options.TLSCertFile = path.Join(options.CertDirectory, "apiserver.crt")
			options.TLSPrivateKeyFile = path.Join(options.CertDirectory, "apiserver.key")
			// TODO (cjcullen): Is ClusterIP the right address to sign a cert with?
			alternateIPs := []net.IP{s.ServiceReadWriteIP}
			alternateDNS := []string{"kubernetes.default.svc", "kubernetes.default", "kubernetes"}
			// It would be nice to set a fqdn subject alt name, but only the kubelets know, the apiserver is clueless
			// alternateDNS = append(alternateDNS, "kubernetes.default.svc.CLUSTER.DNS.NAME")
			if err := util.GenerateSelfSignedCert(s.ClusterIP.String(), options.TLSCertFile, options.TLSPrivateKeyFile, alternateIPs, alternateDNS); err != nil {
				glog.Errorf("Unable to generate self signed cert: %v", err)
			} else {
				glog.Infof("Using self-signed cert (%v, %v)", options.TLSCertFile, options.TLSPrivateKeyFile)
			}
		}

		go func() {
			defer utilruntime.HandleCrash()
			for {
				// err == systemd.SdNotifyNoSocket when not running on a systemd system
				if err := systemd.SdNotify("READY=1\n"); err != nil && err != systemd.SdNotifyNoSocket {
					glog.Errorf("Unable to send systemd daemon successful start message: %v\n", err)
				}
				if err := secureServer.ListenAndServeTLS(options.TLSCertFile, options.TLSPrivateKeyFile); err != nil {
					glog.Errorf("Unable to listen for secure (%v); will try again.", err)
				}
				time.Sleep(15 * time.Second)
			}
		}()
	} else {
		// err == systemd.SdNotifyNoSocket when not running on a systemd system
		if err := systemd.SdNotify("READY=1\n"); err != nil && err != systemd.SdNotifyNoSocket {
			glog.Errorf("Unable to send systemd daemon successful start message: %v\n", err)
		}
	}

	handler := apiserver.TimeoutHandler(s.InsecureHandler, longRunningTimeout)
	http := &http.Server{
		Addr:           insecureLocation,
		Handler:        apiserver.RecoverPanics(handler),
		MaxHeaderBytes: 1 << 20,
	}
	glog.Infof("Serving insecurely on %s", insecureLocation)
	glog.Fatal(http.ListenAndServe())
}