vendor files

vendor/k8s.io/kubernetes/pkg/kubectl/cmd/clusterinfo.go

@@ -0,0 +1,143 @@
+/*
+Copyright 2015 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 cmd
+
+import (
+	"fmt"
+	"io"
+	"strconv"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	utilnet "k8s.io/apimachinery/pkg/util/net"
+	api "k8s.io/kubernetes/pkg/apis/core"
+	"k8s.io/kubernetes/pkg/kubectl/cmd/templates"
+	cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
+	"k8s.io/kubernetes/pkg/kubectl/resource"
+	"k8s.io/kubernetes/pkg/kubectl/util/i18n"
+
+	ct "github.com/daviddengcn/go-colortext"
+	"github.com/spf13/cobra"
+)
+
+var (
+	longDescr = templates.LongDesc(i18n.T(`
+  Display addresses of the master and services with label kubernetes.io/cluster-service=true
+  To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.`))
+
+	clusterinfoExample = templates.Examples(i18n.T(`
+		# Print the address of the master and cluster services
+		kubectl cluster-info`))
+)
+
+func NewCmdClusterInfo(f cmdutil.Factory, out io.Writer) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:     "cluster-info",
+		Short:   i18n.T("Display cluster info"),
+		Long:    longDescr,
+		Example: clusterinfoExample,
+		Run: func(cmd *cobra.Command, args []string) {
+			err := RunClusterInfo(f, out, cmd)
+			cmdutil.CheckErr(err)
+		},
+	}
+	cmdutil.AddInclude3rdPartyFlags(cmd)
+	cmd.AddCommand(NewCmdClusterInfoDump(f, out))
+	return cmd
+}
+
+func RunClusterInfo(f cmdutil.Factory, out io.Writer, cmd *cobra.Command) error {
+	client, err := f.ClientConfig()
+	if err != nil {
+		return err
+	}
+	printService(out, "Kubernetes master", client.Host)
+
+	cmdNamespace := cmdutil.GetFlagString(cmd, "namespace")
+	if cmdNamespace == "" {
+		cmdNamespace = metav1.NamespaceSystem
+	}
+
+	// TODO use generalized labels once they are implemented (#341)
+	b := f.NewBuilder().
+		Internal().
+		NamespaceParam(cmdNamespace).DefaultNamespace().
+		LabelSelectorParam("kubernetes.io/cluster-service=true").
+		ResourceTypeOrNameArgs(false, []string{"services"}...).
+		Latest()
+	err = b.Do().Visit(func(r *resource.Info, err error) error {
+		if err != nil {
+			return err
+		}
+		services := r.Object.(*api.ServiceList).Items
+		for _, service := range services {
+			var link string
+			if len(service.Status.LoadBalancer.Ingress) > 0 {
+				ingress := service.Status.LoadBalancer.Ingress[0]
+				ip := ingress.IP
+				if ip == "" {
+					ip = ingress.Hostname
+				}
+				for _, port := range service.Spec.Ports {
+					link += "http://" + ip + ":" + strconv.Itoa(int(port.Port)) + " "
+				}
+			} else {
+				name := service.ObjectMeta.Name
+
+				if len(service.Spec.Ports) > 0 {
+					port := service.Spec.Ports[0]
+
+					// guess if the scheme is https
+					scheme := ""
+					if port.Name == "https" || port.Port == 443 {
+						scheme = "https"
+					}
+
+					// format is <scheme>:<service-name>:<service-port-name>
+					name = utilnet.JoinSchemeNamePort(scheme, service.ObjectMeta.Name, port.Name)
+				}
+
+				if len(client.GroupVersion.Group) == 0 {
+					link = client.Host + "/api/" + client.GroupVersion.Version + "/namespaces/" + service.ObjectMeta.Namespace + "/services/" + name + "/proxy"
+				} else {
+					link = client.Host + "/api/" + client.GroupVersion.Group + "/" + client.GroupVersion.Version + "/namespaces/" + service.ObjectMeta.Namespace + "/services/" + name + "/proxy"
+
+				}
+			}
+			name := service.ObjectMeta.Labels["kubernetes.io/name"]
+			if len(name) == 0 {
+				name = service.ObjectMeta.Name
+			}
+			printService(out, name, link)
+		}
+		return nil
+	})
+	out.Write([]byte("\nTo further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.\n"))
+	return err
+
+	// TODO consider printing more information about cluster
+}
+
+func printService(out io.Writer, name, link string) {
+	ct.ChangeColor(ct.Green, false, ct.None, false)
+	fmt.Fprint(out, name)
+	ct.ResetColor()
+	fmt.Fprintf(out, " is running at ")
+	ct.ChangeColor(ct.Yellow, false, ct.None, false)
+	fmt.Fprint(out, link)
+	ct.ResetColor()
+	fmt.Fprintln(out, "")
+}