9e7f29c3fb
Some kubectl commands were deprecated but would fail to print the correct warning message when a flag was given before the command name. # Correctly prints the warning that "resize" is deprecated and # "scale" is now preferred. kubectl scale [...] # Should print the same warning but no warning is printed. kubectl --v=1 scale [...] This was due to a fragile check on os.Args[1]. This commit implements a new function deprecatedCmd() that is used to construct new "passthrough" commands which are marked as deprecated and hidden. Note that there is an existing "filters" system that may be preferable to the system created in this commit. I'm not sure why the "filters" array was not used for all deprecated commands in the first place.
128 lines
4.0 KiB
Go
128 lines
4.0 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors.
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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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"strconv"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/kubectl/cmd/templates"
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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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"k8s.io/kubernetes/pkg/util/i18n"
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ct "github.com/daviddengcn/go-colortext"
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"github.com/spf13/cobra"
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)
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var (
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longDescr = templates.LongDesc(i18n.T(`
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Display addresses of the master and services with label kubernetes.io/cluster-service=true
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To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.`))
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clusterinfoExample = templates.Examples(i18n.T(`
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# Print the address of the master and cluster services
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kubectl cluster-info`))
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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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Short: i18n.T("Display cluster info"),
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Long: longDescr,
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Example: clusterinfoExample,
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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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cmdutil.AddInclude3rdPartyFlags(cmd)
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cmd.AddCommand(NewCmdClusterInfoDump(f, out))
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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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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 = metav1.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, f.CategoryExpander(), 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(int(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 + "/namespaces/" + service.ObjectMeta.Namespace + "/services/" + service.ObjectMeta.Name + "/proxy"
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} else {
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link = client.Host + "/api/" + client.GroupVersion.Group + "/" + client.GroupVersion.Version + "/namespaces/" + service.ObjectMeta.Namespace + "/services/" + service.ObjectMeta.Name + "/proxy"
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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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out.Write([]byte("\nTo further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.\n"))
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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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