dont create iptables rule on nginx server if nginx is localhost or self

tasks/nginx.yml

@@ -42,7 +42,7 @@
         name: allow_matrix_nginx_proxy
         state: present
         rules: '-A OUTPUT -m state --state NEW -p tcp -d {{ matrix_nginx_proxy_ip }} --dport {{ matrix_nginx_proxy_port }} -j ACCEPT'
-      when: matrix_nginx_iptables_enabled
+      when: matrix_nginx_iptables_enabled and (not matrix_nginx_server == inventory_hostname or not matrix_nginx_server == "localhost")
   delegate_to: "{{ matrix_nginx_server }}"
   become: True
   become_user: root