kubeadm: fix broken `kubeadm init --config` flag.

This code was changed in ea196490 to validate that `--config` wasn't passed along with other flags. Unfortunately, the implementation was checking `PersistentFlags()`, which was not parsed at the point it was being validated. The result was that `--config` was _always_ rejected, not just when it was specified alongside other flags. The fix is to use `Flags()` instead, which contains the expected data.

kubeadm: fix broken `kubeadm init --config` flag.
ae35377e · Matt Moyer · f5757bce · ae35377e
Commit ae35377e authored Jul 13, 2017 by Matt Moyer
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init.go cmd/kubeadm/app/cmd/init.go +1 -1

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--- a/cmd/kubeadm/app/cmd/init.go
+++ b/cmd/kubeadm/app/cmd/init.go
@@ -206,7 +206,7 @@ type Init struct {

 // Validate validates configuration passed to "kubeadm init"
 func (i *Init) Validate(cmd *cobra.Command) error {
-	if err := validation.ValidateMixedArguments(cmd.PersistentFlags()); err != nil {
+	if err := validation.ValidateMixedArguments(cmd.Flags()); err != nil {
 		return err
 	}
 	return validation.ValidateMasterConfiguration(i.cfg).ToAggregate()