Increase Node ISO creation timeout from 15 to 30 minutes

Author: mhanss

pkg/cli/admin/nodeimage/create.go

@@ -450,7 +450,7 @@ func (o *CreateOptions) nodeJoinerPodExec(ctx context.Context, command ...string
 	err := wait.PollUntilContextTimeout(
 		ctx,
 		time.Second*5,
-		time.Minute*15,
+		time.Minute*30,
 		true,
 		func(ctx context.Context) (done bool, err error) {
 			execOptions := &exec.ExecOptions{