- name: Update proxy IP
  hosts: proxy
  vars:
    proxy_conf_path: "/etc/nginx/nginx.conf"
    old_ip6: "sbhbad"
    new_ip6: "sbhgood"
  tasks:
   - name: Change ip in 
     ansible.builtin.shell: sed -i s/{{ old_ip6 }}/{{ new_ip6 }}/ {{ proxy_conf_path }} 

   - name: Restart nginx service
     ansible.builtin.service:
      name: nginx
      state: restarted