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add suggestion to use describe to obtain container names

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juanvallejo 2016-09-07 11:23:21 -04:00
parent e4424b8a04
commit f8cc2ab3b8
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2 changed files with 15 additions and 8 deletions
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2
pkg/kubectl/cmd/cmd.go
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@ -287,7 +287,7 @@ Find more information at https://github.com/kubernetes/kubernetes.`,
NewCmdDescribe(f, out, err),
NewCmdLogs(f, out),
NewCmdAttach(f, in, out, err),
NewCmdExec(f, in, out, err),
NewCmdExec("kubectl", f, in, out, err),
NewCmdPortForward(f, out, err),
NewCmdProxy(f, out),
},

13
pkg/kubectl/cmd/exec.go
View File

@ -22,7 +22,6 @@ import (
"net/url"
dockerterm "github.com/docker/docker/pkg/term"
"github.com/golang/glog"
"github.com/renstrom/dedent"
"github.com/spf13/cobra"
"k8s.io/kubernetes/pkg/api"
@ -52,7 +51,7 @@ const (
execUsageStr = "expected 'exec POD_NAME COMMAND [ARG1] [ARG2] ... [ARGN]'.\nPOD_NAME and COMMAND are required arguments for the exec command"
)
func NewCmdExec(f *cmdutil.Factory, cmdIn io.Reader, cmdOut, cmdErr io.Writer) *cobra.Command {
func NewCmdExec(cmdFullName string, f *cmdutil.Factory, cmdIn io.Reader, cmdOut, cmdErr io.Writer) *cobra.Command {
options := &ExecOptions{
StreamOptions: StreamOptions{
In: cmdIn,
@ -60,6 +59,7 @@ func NewCmdExec(f *cmdutil.Factory, cmdIn io.Reader, cmdOut, cmdErr io.Writer) *
Err: cmdErr,
},
FullCmdName: cmdFullName,
Executor: &DefaultRemoteExecutor{},
}
cmd := &cobra.Command{
@ -130,6 +130,7 @@ type ExecOptions struct {
Command []string
FullCmdName string
Executor RemoteExecutor
Client *client.Client
Config *restclient.Config
@ -137,6 +138,10 @@ type ExecOptions struct {
// Complete verifies command line arguments and loads data from the command environment
func (p *ExecOptions) Complete(f *cmdutil.Factory, cmd *cobra.Command, argsIn []string, argsLenAtDash int) error {
if len(p.FullCmdName) == 0 {
p.FullCmdName = "kubectl"
}
// Let kubectl exec follow rules for `--`, see #13004 issue
if len(p.PodName) == 0 && (len(argsIn) == 0 || argsLenAtDash == 0) {
return cmdutil.UsageError(cmd, execUsageStr)
@ -258,7 +263,9 @@ func (p *ExecOptions) Run() error {
containerName := p.ContainerName
if len(containerName) == 0 {
glog.V(4).Infof("defaulting container name to %s", pod.Spec.Containers[0].Name)
if len(pod.Spec.Containers) > 1 {
fmt.Fprintf(p.Err, "defaulting container name to %s, use '%s describe pod/%s' to see all container names\n", pod.Spec.Containers[0].Name, p.FullCmdName, p.PodName)
}
containerName = pod.Spec.Containers[0].Name
}