serverctl/infrastructure/create-resources/ansible/roles/wireguard/mesh/templates/systemd.netdev

[NetDev]
Name=wg0
Kind=wireguard
Description=WireGuard tunnel wg0

[WireGuard]
ListenPort={{ wireguard_port }}
PrivateKey={{ wireguard_private_key.stdout }}

{% for peer in groups['serverctl_cluster'] %}
{% if peer != inventory_hostname %}

[WireGuardPeer]
PublicKey={{ hostvars[peer].wireguard_public_key.stdout }}
PresharedKey={{ wireguard_preshared_keys[peer] if inventory_hostname < peer else hostvars[peer].wireguard_preshared_keys[inventory_hostname] }}
AllowedIPs={{ hostvars[peer].wireguard_ip }}/32
Endpoint={{ hostvars[peer].ansible_host }}:{{ wireguard_port }}
PersistentKeepalive=25
{% endif %}
{% endfor %}