Fix namespace creation

Author: dudo

manifest.rb

@@ -145,7 +145,7 @@ def create_overlay?(svc)
 
   def include_namespace?
     manifests = supporting_services.map { |svc| overlay_manifest_names(svc) }.flatten
-    manifests.include?(Templates::Namespace::NAME)
+    !manifests.include?(Templates::Namespace::NAME)
   end
 
   def base_manifests(svc)

templates/kustomization.rb

@@ -52,7 +52,7 @@ def ingress_patch
       {
         'target' => {
           'kind' => 'Ingress',
-          'group' => 'extensions',
+          'group' => 'networking.k8s.io',
           'version' => 'v1beta1',
           'name' => service
         },