label: Invalidate empty or invalid value labels
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@ -7,6 +7,7 @@ Update the labels on a resource
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Update the labels on a resource.
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A label must begin with a letter or number, and may contain letters, numbers, hyphens, dots, and underscores, up to 63 characters.
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If --overwrite is true, then existing labels can be overwritten, otherwise attempting to overwrite a label will result in an error.
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If --resource-version is specified, then updates will use this resource version, otherwise the existing resource-version will be used.
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@ -80,6 +81,6 @@ $ kubectl label pods foo bar-
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### SEE ALSO
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* [kubectl](kubectl.md) - kubectl controls the Kubernetes cluster manager
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###### Auto generated by spf13/cobra at 2015-05-21 10:33:11.210679161 +0000 UTC
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###### Auto generated by spf13/cobra at 2015-05-28 08:44:48.996047458 +0000 UTC
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[]()
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@ -16,6 +16,7 @@ kubectl label \- Update the labels on a resource
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Update the labels on a resource.
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.PP
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A label must begin with a letter or number, and may contain letters, numbers, hyphens, dots, and underscores, up to 63 characters.
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If \-\-overwrite is true, then existing labels can be overwritten, otherwise attempting to overwrite a label will result in an error.
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If \-\-resource\-version is specified, then updates will use this resource version, otherwise the existing resource\-version will be used.
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@ -25,12 +25,14 @@ import (
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cmdutil "github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl/cmd/util"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl/resource"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
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"github.com/spf13/cobra"
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)
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const (
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label_long = `Update the labels on a resource.
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A label must begin with a letter or number, and may contain letters, numbers, hyphens, dots, and underscores, up to %[1]d characters.
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If --overwrite is true, then existing labels can be overwritten, otherwise attempting to overwrite a label will result in an error.
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If --resource-version is specified, then updates will use this resource version, otherwise the existing resource-version will be used.`
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label_example = `// Update pod 'foo' with the label 'unhealthy' and the value 'true'.
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@ -54,7 +56,7 @@ func NewCmdLabel(f *cmdutil.Factory, out io.Writer) *cobra.Command {
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cmd := &cobra.Command{
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Use: "label [--overwrite] RESOURCE NAME KEY_1=VAL_1 ... KEY_N=VAL_N [--resource-version=version]",
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Short: "Update the labels on a resource",
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Long: label_long,
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Long: fmt.Sprintf(label_long, util.LabelValueMaxLength),
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Example: label_example,
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Run: func(cmd *cobra.Command, args []string) {
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err := RunLabel(f, out, cmd, args)
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@ -103,7 +105,7 @@ func parseLabels(spec []string) (map[string]string, []string, error) {
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for _, labelSpec := range spec {
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if strings.Index(labelSpec, "=") != -1 {
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parts := strings.Split(labelSpec, "=")
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if len(parts) != 2 {
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if len(parts) != 2 || len(parts[1]) == 0 || !util.IsValidLabelValue(parts[1]) {
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return nil, nil, fmt.Errorf("invalid label spec: %v", labelSpec)
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}
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labels[parts[0]] = parts[1]
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@ -185,7 +187,7 @@ func RunLabel(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []stri
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labels, remove, err := parseLabels(labelArgs)
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if err != nil {
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return err
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return cmdutil.UsageError(cmd, err.Error())
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}
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mapper, typer := f.Object()
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@ -125,6 +125,14 @@ func TestParseLabels(t *testing.T) {
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labels: []string{"a=b", "c=d", "a-"},
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expectErr: true,
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},
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{
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labels: []string{"a="},
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expectErr: true,
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},
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{
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labels: []string{"a=%^$"},
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expectErr: true,
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},
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}
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for _, test := range tests {
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labels, remove, err := parseLabels(test.labels)
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