Monkey patches Kubeclient::Client#proxy_url in order to make it compliant with…

config/initializers/kubeclient.rb

+class Kubeclient::Client
+  # We need to monkey patch this method until
+  # https://github.com/abonas/kubeclient/pull/323 is merged
+  def proxy_url(kind, name, port, namespace = '')
+    discover unless @discovered
+    entity_name_plural =
+      if %w[services pods nodes].include?(kind.to_s)
+        kind.to_s
+      else
+        @entities[kind.to_s].resource_name
+      end
+    ns_prefix = build_namespace_prefix(namespace)
+    rest_client["#{ns_prefix}#{entity_name_plural}/#{name}:#{port}/proxy"].url
+  end
+end