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bash_completions: annotate kubectl get with resources which can be 'gotten'

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A user types:
  kubectl get $resource

This will cause the bash completions to suggest the possible objects the
user can ask for.  The complete list right now is:

endpoints
event
limitrange
namespace
node
persistentvolume
persistentvolumeclaim
pod
replicationcontroller
resourcequota
secret
service
status

But this list should stay up2date as api objects are added or deleted
This commit is contained in:
Eric Paris 2015-03-17 13:01:57 -04:00
parent 5b8a426d01
commit c75ecbd8e3
3 changed files with 33 additions and 0 deletions
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13
contrib/completions/bash/kubectl
View File

@ -175,6 +175,19 @@ _kubectl_get()
must_have_one_flag=()
must_have_one_noun=()
must_have_one_noun+=("endpoints")
must_have_one_noun+=("event")
must_have_one_noun+=("limitrange")
must_have_one_noun+=("namespace")
must_have_one_noun+=("node")
must_have_one_noun+=("persistentvolume")
must_have_one_noun+=("persistentvolumeclaim")
must_have_one_noun+=("pod")
must_have_one_noun+=("replicationcontroller")
must_have_one_noun+=("resourcequota")
must_have_one_noun+=("secret")
must_have_one_noun+=("service")
must_have_one_noun+=("status")
}
_kubectl_describe()

4
pkg/kubectl/cmd/get.go
View File

@ -60,6 +60,9 @@ $ kubectl get rc/web service/frontend pods/web-pod-13je7`
// NewCmdGet creates a command object for the generic "get" action, which
// retrieves one or more resources from a server.
func NewCmdGet(f *cmdutil.Factory, out io.Writer) *cobra.Command {
p := kubectl.NewHumanReadablePrinter(false)
validArgs := p.HandledResources()
cmd := &cobra.Command{
Use: "get [(-o|--output=)json|yaml|template|...] (RESOURCE [NAME] | RESOURCE/NAME ...)",
Short: "Display one or many resources",
@ -69,6 +72,7 @@ func NewCmdGet(f *cmdutil.Factory, out io.Writer) *cobra.Command {
err := RunGet(f, out, cmd, args)
cmdutil.CheckErr(err)
},
ValidArgs: validArgs,
}
cmdutil.AddPrinterFlags(cmd)
cmd.Flags().StringP("selector", "l", "", "Selector (label query) to filter on")

16
pkg/kubectl/resource_printer.go
View File

@ -227,6 +227,22 @@ func (h *HumanReadablePrinter) validatePrintHandlerFunc(printFunc reflect.Value)
return nil
}
func (h *HumanReadablePrinter) HandledResources() []string {
keys := make([]string, 0)
for k := range h.handlerMap {
// k.String looks like "*api.PodList" and we want just "pod"
api := strings.Split(k.String(), ".")
resource := api[len(api)-1]
if strings.HasSuffix(resource, "List") {
continue
}
resource = strings.ToLower(resource)
keys = append(keys, resource)
}
return keys
}
var podColumns = []string{"POD", "IP", "CONTAINER(S)", "IMAGE(S)", "HOST", "LABELS", "STATUS", "CREATED"}
var replicationControllerColumns = []string{"CONTROLLER", "CONTAINER(S)", "IMAGE(S)", "SELECTOR", "REPLICAS"}
var serviceColumns = []string{"NAME", "LABELS", "SELECTOR", "IP", "PORT(S)"}