Scale up webhook deployment to 3 replicas (#1222)

* Scale up webhook deployment to 3 replicas

* fix test

Author: alexeykazakov

testsupport/wait/member.go

@@ -2201,11 +2201,11 @@ func (a *MemberAwaitility) waitForService(t *testing.T) {
 
 func (a *MemberAwaitility) waitForWebhookDeployment(t *testing.T, image string) {
 	t.Logf("checking Deployment '%s' in namespace '%s'", "member-operator-webhook", a.Namespace)
-	actualDeployment := a.WaitForDeploymentToGetReady(t, "member-operator-webhook", 1,
+	actualDeployment := a.WaitForDeploymentToGetReady(t, "member-operator-webhook", 3,
 		DeploymentHasContainerWithImage("mutator", image))
 
 	assert.Equal(t, bothWebhookLabels, actualDeployment.Labels)
-	assert.Equal(t, int32(1), *actualDeployment.Spec.Replicas)
+	assert.Equal(t, int32(3), *actualDeployment.Spec.Replicas)
 	assert.Equal(t, appMemberOperatorWebhookLabel, actualDeployment.Spec.Selector.MatchLabels)
 
 	template := actualDeployment.Spec.Template
@@ -2228,7 +2228,7 @@ func (a *MemberAwaitility) waitForWebhookDeployment(t *testing.T, image string)
 	assert.Equal(t, "/etc/webhook/certs", container.VolumeMounts[0].MountPath)
 	assert.True(t, container.VolumeMounts[0].ReadOnly)
 
-	a.WaitForDeploymentToGetReady(t, "member-operator-webhook", 1)
+	a.WaitForDeploymentToGetReady(t, "member-operator-webhook", 3)
 }
 
 func (a *MemberAwaitility) verifySecret(t *testing.T) []byte {