add host gw-gh-gw; task chaching-nameservice must run befor task systemd-resolved.

roles/common/tasks/main.yml

@@ -56,6 +56,16 @@
   tags: yum
 
 
+# tags supportetd inside caching-nameserver.yml
+#
+# apt-caching-nameserver
+# yum-caching-nameserver
+#
+- import_tasks: caching-nameserver.yml
+  when: groups['caching_nameserver']|string is search(inventory_hostname)
+  tags: caching-nameserver
+
+
 # tags supported inside systemd-resolved.yml
 #
 #    systemd-resolved
@@ -270,16 +280,6 @@
   tags:
     - redis-server
 
-
-# tags supportetd inside caching-nameserver.yml
-#
-# apt-caching-nameserver
-# yum-caching-nameserver
-#
-- import_tasks: caching-nameserver.yml
-  when: groups['caching_nameserver']|string is search(inventory_hostname)
-  tags: caching-nameserver
-
 - import_tasks: mysql.yml
   when: groups['mysql_server']|string is search(inventory_hostname)
   tags: