Example #1
0
// NewForConfig creates a new Clientset for the given config.
func NewForConfig(c *rest.Config) (*Clientset, error) {
	configShallowCopy := *c
	if configShallowCopy.RateLimiter == nil && configShallowCopy.QPS > 0 {
		configShallowCopy.RateLimiter = flowcontrol.NewTokenBucketRateLimiter(configShallowCopy.QPS, configShallowCopy.Burst)
	}
	var clientset Clientset
	var err error
	clientset.CoreClient, err = v1core.NewForConfig(&configShallowCopy)
	if err != nil {
		return nil, err
	}
	clientset.AuthorizationClient, err = v1beta1authorization.NewForConfig(&configShallowCopy)
	if err != nil {
		return nil, err
	}
	clientset.AutoscalingClient, err = v1autoscaling.NewForConfig(&configShallowCopy)
	if err != nil {
		return nil, err
	}
	clientset.BatchClient, err = v1batch.NewForConfig(&configShallowCopy)
	if err != nil {
		return nil, err
	}
	clientset.ExtensionsClient, err = v1beta1extensions.NewForConfig(&configShallowCopy)
	if err != nil {
		return nil, err
	}

	clientset.DiscoveryClient, err = discovery.NewDiscoveryClientForConfig(&configShallowCopy)
	if err != nil {
		glog.Errorf("failed to create the DiscoveryClient: %v", err)
		return nil, err
	}
	return &clientset, nil
}
Example #2
0
// NewRESTClient creates a new RESTClient. This client performs generic REST functions
// such as Get, Put, Post, and Delete on specified paths.  Codec controls encoding and
// decoding of responses from the server.
func NewRESTClient(baseURL *url.URL, versionedAPIPath string, config ContentConfig, maxQPS float32, maxBurst int, rateLimiter flowcontrol.RateLimiter, client *http.Client) (*RESTClient, error) {
	base := *baseURL
	if !strings.HasSuffix(base.Path, "/") {
		base.Path += "/"
	}
	base.RawQuery = ""
	base.Fragment = ""

	if config.GroupVersion == nil {
		config.GroupVersion = &unversioned.GroupVersion{}
	}
	if len(config.ContentType) == 0 {
		config.ContentType = "application/json"
	}
	serializers, err := createSerializers(config)
	if err != nil {
		return nil, err
	}

	var throttle flowcontrol.RateLimiter
	if maxQPS > 0 && rateLimiter == nil {
		throttle = flowcontrol.NewTokenBucketRateLimiter(maxQPS, maxBurst)
	} else if rateLimiter != nil {
		throttle = rateLimiter
	}
	return &RESTClient{
		base:             &base,
		versionedAPIPath: versionedAPIPath,
		contentConfig:    config,
		serializers:      *serializers,
		createBackoffMgr: readExpBackoffConfig,
		Throttle:         throttle,
		Client:           client,
	}, nil
}
Example #3
0
func main() {
	nginx.Start()
	cfg, err := rest.InClusterConfig()
	if err != nil {
		log.Fatalf("Failed to create config: %v", err)
	}
	kubeClient, err := kubernetes.NewForConfig(cfg)
	if err != nil {
		log.Fatalf("Failed to create client: %v.", err)
	}
	rateLimiter := flowcontrol.NewTokenBucketRateLimiter(0.1, 1)
	known := &model.RouterConfig{}
	// Main loop
	for {
		rateLimiter.Accept()
		routerConfig, err := model.Build(kubeClient)
		if err != nil {
			log.Printf("Error building model; not modifying certs or configuration: %v.", err)
			continue
		}
		if reflect.DeepEqual(routerConfig, known) {
			continue
		}
		log.Println("INFO: Router configuration has changed in k8s.")
		err = nginx.WriteCerts(routerConfig, "/opt/router/ssl")
		if err != nil {
			log.Printf("Failed to write certs; continuing with existing certs, dhparam, and configuration: %v", err)
			continue
		}
		err = nginx.WriteDHParam(routerConfig, "/opt/router/ssl")
		if err != nil {
			log.Printf("Failed to write dhparam; continuing with existing dhparam and configuration: %v", err)
			continue
		}
		err = nginx.WriteConfig(routerConfig, "/opt/router/conf/nginx.conf")
		if err != nil {
			log.Printf("Failed to write new nginx configuration; continuing with existing configuration: %v", err)
			continue
		}
		err = nginx.Reload()
		if err != nil {
			log.Printf("Failed to reload nginx; continuing with existing configuration: %v", err)
			continue
		}
		known = routerConfig
	}
}