envtest: set default webhook options for polling

Similar to how it's done for the CRD installation, set
default webhook options for timeout/poll interval values.

This avoids getting MaxTime=0 which changes its behaviour
when moving from k8s deprecated wait.PollImmediate()
to wait.PollUntilContextTimeout().

Signed-off-by: Mikko Ylinen <mikko.ylinen@intel.com>

pkg/envtest/webhook.go

@@ -147,6 +147,8 @@ func (o *WebhookInstallOptions) PrepWithoutInstalling() error {
 
 // Install installs specified webhooks to the API server.
 func (o *WebhookInstallOptions) Install(config *rest.Config) error {
+	defaultWebhookOptions(o)
+
 	if len(o.LocalServingCAData) == 0 {
 		if err := o.PrepWithoutInstalling(); err != nil {
 			return err
@@ -168,6 +170,16 @@ func (o *WebhookInstallOptions) Cleanup() error {
 	return nil
 }
 
+// defaultWebhookOptions sets the default values for Webhooks.
+func defaultWebhookOptions(o *WebhookInstallOptions) {
+	if o.MaxTime == 0 {
+		o.MaxTime = defaultMaxWait
+	}
+	if o.PollInterval == 0 {
+		o.PollInterval = defaultPollInterval
+	}
+}
+
 // WaitForWebhooks waits for the Webhooks to be available through API server.
 func WaitForWebhooks(config *rest.Config,
 	mutatingWebhooks []*admissionv1.MutatingWebhookConfiguration,