Done!
> - if ! ip link show dev "${iface}" >/dev/null 2>&1; then
> - ip link add dev "${iface}" type wireguard
> - else
> - ip address flush dev "${iface}"
> - ip route flush dev "${iface}"
> - fi
> + ip link del dev "${iface}" 2>/dev/null
> + ip link add dev "${iface}" type wireguard