vendor files

vendor/k8s.io/kubernetes/pkg/kubeapiserver/options/cloudprovider.go

@@ -0,0 +1,92 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package options
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/golang/glog"
+	"github.com/spf13/pflag"
+
+	"k8s.io/api/core/v1"
+	genericoptions "k8s.io/apiserver/pkg/server/options"
+	"k8s.io/kubernetes/pkg/cloudprovider"
+)
+
+type CloudProviderOptions struct {
+	CloudConfigFile string
+	CloudProvider   string
+}
+
+func NewCloudProviderOptions() *CloudProviderOptions {
+	return &CloudProviderOptions{}
+}
+
+func (s *CloudProviderOptions) Validate() []error {
+	allErrors := []error{}
+	return allErrors
+}
+
+func (s *CloudProviderOptions) AddFlags(fs *pflag.FlagSet) {
+	fs.StringVar(&s.CloudProvider, "cloud-provider", s.CloudProvider,
+		"The provider for cloud services. Empty string for no provider.")
+
+	fs.StringVar(&s.CloudConfigFile, "cloud-config", s.CloudConfigFile,
+		"The path to the cloud provider configuration file. Empty string for no configuration file.")
+}
+
+func (s *CloudProviderOptions) DefaultExternalHost(genericoptions *genericoptions.ServerRunOptions) error {
+	if len(genericoptions.ExternalHost) != 0 {
+		return nil
+	}
+
+	if cloudprovider.IsCloudProvider(s.CloudProvider) {
+		glog.Info("--external-hostname was not specified. Trying to get it from the cloud provider.")
+
+		cloud, err := cloudprovider.InitCloudProvider(s.CloudProvider, s.CloudConfigFile)
+		if err != nil {
+			return fmt.Errorf("%q cloud provider could not be initialized: %v", s.CloudProvider, err)
+		}
+		instances, supported := cloud.Instances()
+		if !supported {
+			return fmt.Errorf("%q cloud provider has no instances", s.CloudProvider)
+		}
+		hostname, err := os.Hostname()
+		if err != nil {
+			return fmt.Errorf("failed to get hostname: %v", err)
+		}
+		nodeName, err := instances.CurrentNodeName(hostname)
+		if err != nil {
+			return fmt.Errorf("failed to get NodeName from %q cloud provider: %v", s.CloudProvider, err)
+		}
+		addrs, err := instances.NodeAddresses(nodeName)
+		if err != nil {
+			return fmt.Errorf("failed to get external host address from %q cloud provider: %v", s.CloudProvider, err)
+		} else {
+			for _, addr := range addrs {
+				if addr.Type == v1.NodeExternalIP {
+					genericoptions.ExternalHost = addr.Address
+					glog.Warning("[Deprecated] Getting host address using cloud provider is " +
+						"now deprecated. Please use --external-hostname explicitly")
+				}
+			}
+		}
+	}
+
+	return nil
+}