2fd38a7dc0
Most of the logic related to type and kind retrieval belongs in the codec, not in the various classes. Make it explicit that the codec should handle these details. Factory now returns a universal Decoder and a JSONEncoder to assist code in kubectl that needs to specifically deal with JSON serialization (apply, merge, patch, edit, jsonpath). Add comments to indicate the serialization is explicit in those places. These methods decode to internal and encode to the preferred API version as previous, although in the future they may be changed. React to removing Codec from version interfaces and RESTMapping by passing it in to all the places that it is needed.
118 lines
3.5 KiB
Go
118 lines
3.5 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package cmd
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import (
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"fmt"
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"io"
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"os"
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"strconv"
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"k8s.io/kubernetes/pkg/api"
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cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
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"k8s.io/kubernetes/pkg/kubectl/resource"
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"github.com/daviddengcn/go-colortext"
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"github.com/spf13/cobra"
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)
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func NewCmdClusterInfo(f *cmdutil.Factory, out io.Writer) *cobra.Command {
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cmd := &cobra.Command{
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Use: "cluster-info",
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// clusterinfo is deprecated.
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Aliases: []string{"clusterinfo"},
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Short: "Display cluster info",
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Long: "Display addresses of the master and services with label kubernetes.io/cluster-service=true",
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Run: func(cmd *cobra.Command, args []string) {
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err := RunClusterInfo(f, out, cmd)
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cmdutil.CheckErr(err)
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},
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}
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return cmd
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}
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func RunClusterInfo(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command) error {
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if len(os.Args) > 1 && os.Args[1] == "clusterinfo" {
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printDeprecationWarning("cluster-info", "clusterinfo")
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}
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client, err := f.ClientConfig()
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if err != nil {
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return err
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}
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printService(out, "Kubernetes master", client.Host)
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mapper, typer := f.Object()
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cmdNamespace := cmdutil.GetFlagString(cmd, "namespace")
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if cmdNamespace == "" {
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cmdNamespace = api.NamespaceSystem
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}
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// TODO use generalized labels once they are implemented (#341)
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b := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
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NamespaceParam(cmdNamespace).DefaultNamespace().
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SelectorParam("kubernetes.io/cluster-service=true").
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ResourceTypeOrNameArgs(false, []string{"services"}...).
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Latest()
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b.Do().Visit(func(r *resource.Info, err error) error {
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if err != nil {
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return err
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}
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services := r.Object.(*api.ServiceList).Items
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for _, service := range services {
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var link string
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if len(service.Status.LoadBalancer.Ingress) > 0 {
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ingress := service.Status.LoadBalancer.Ingress[0]
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ip := ingress.IP
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if ip == "" {
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ip = ingress.Hostname
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}
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for _, port := range service.Spec.Ports {
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link += "http://" + ip + ":" + strconv.Itoa(port.Port) + " "
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}
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} else {
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if len(client.GroupVersion.Group) == 0 {
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link = client.Host + "/api/" + client.GroupVersion.Version + "/proxy/namespaces/" + service.ObjectMeta.Namespace + "/services/" + service.ObjectMeta.Name
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} else {
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link = client.Host + "/api/" + client.GroupVersion.Group + "/" + client.GroupVersion.Version + "/proxy/namespaces/" + service.ObjectMeta.Namespace + "/services/" + service.ObjectMeta.Name
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}
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}
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name := service.ObjectMeta.Labels["kubernetes.io/name"]
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if len(name) == 0 {
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name = service.ObjectMeta.Name
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}
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printService(out, name, link)
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}
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return nil
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})
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return nil
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// TODO consider printing more information about cluster
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}
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func printService(out io.Writer, name, link string) {
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ct.ChangeColor(ct.Green, false, ct.None, false)
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fmt.Fprint(out, name)
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ct.ResetColor()
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fmt.Fprintf(out, " is running at ")
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ct.ChangeColor(ct.Yellow, false, ct.None, false)
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fmt.Fprint(out, link)
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ct.ResetColor()
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fmt.Fprintln(out, "")
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}
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