ansible-roles/roles/zabbix_proxy/tasks/iptables.yml

---
- name: Handle Zabbix Proxy port
  iptables_raw:
    name: zabbix_proxy_port
    state: "{{ (zabbix_proxy_src_ip | length > 0) | ternary('present','absent') }}"
    rules: "-A INPUT -m state --state NEW -p tcp --dport {{ zabbix_proxy_port }} -s {{ zabbix_proxy_src_ip | join(',') }} -j ACCEPT"
  tags: zabbix