Fix the idiot mistakes i made in postup/down rules.

- you'll note i fucked up interface name
- and missing an argument :(

ansible/roles/wg_vpn/templates/wg0.conf

@@ -12,8 +12,8 @@ PrivateKey = {{ wireguard_server_privkey }}
 Address = {{ wireguard_vpn_network | ipaddr(wireguard_server_offset) }}
 ListenPort = {{ wireguard_server_listen_port }}
 
-PostUp = iptables -A FORWARD -i wgnet0 -j ACCEPT; iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
-PostDown = iptables -D FORWARD -i wgnet0 -j ACCEPT; iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE
+PostUp = iptables -A FORWARD -i %i -j ACCEPT; iptables -A FORWARD -o %i -j ACCEPT; iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
+PostDown = iptables -D FORWARD -i %i -j ACCEPT; iptables -D FORWARD -o %i -j ACCEPT; iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE
 
 {% for client in wireguard_clients %}
 [Peer]