node: specify the DNS domain

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>

roles/openshift_node/tasks/node_system_container.yml

@@ -9,4 +9,6 @@
   oc_atomic_container:
     name: "{{ openshift.common.service_type }}-node"
     image: "{{ 'docker:' if openshift.common.system_images_registry == 'docker' else openshift.common.system_images_registry + '/' }}{{ openshift.node.node_system_image }}:{{ openshift_image_tag }}"
+    values:
+    - "DNS_DOMAIN={{ openshift.common.dns_domain }}"
     state: latest