ansible.nftables/templates/lib/systemd/system/nftables.service.j2

# {{ ansible_managed }}
[Unit]
Description={{ nft_service_name }}
Documentation=man:nft(8) http://wiki.nftables.org
;Before=fail2ban.service

[Service]
Type=oneshot
RemainAfterExit=yes
StandardInput=null
{% if nft__service_protect %}
ProtectSystem=full
ProtectHome=true
{% endif %}
{% if nft__fail2ban_service %}
ExecStart=/usr/sbin/nft -f {{ nft_main_conf_path }} ; /bin/systemctl restart fail2ban.service
ExecReload=/usr/sbin/nft -f {{ nft_main_conf_path }} ; /bin/systemctl restart fail2ban.service
ExecStop=/bin/systemctl stop fail2ban.service ; /usr/sbin/nft flush ruleset
{% else %}
ExecStart=/usr/sbin/nft -f {{ nft_main_conf_path }}
ExecReload=/usr/sbin/nft -f {{ nft_main_conf_path }}
ExecStop=/usr/sbin/nft flush ruleset
{% endif %}

[Install]
WantedBy=multi-user.target