ppp netns dns

#!/bin/sh

ns=${PPP_IFACE#*-}

. /etc/ovhpass

domain=$ns.teknoraver.net

# create bind mount in /var/run/netns
if ! [ -d /var/run/netns ]; then
        ip netns add $$
        ip netns del $$
fi

pid=$(machinectl show -p Leader --value $ns)
nsmount=/var/run/netns/$ns
>$nsmount
mount --bind /proc/$pid/ns/net $nsmount

ip link set dev $PPP_IFACE netns $ns
ip -n $ns addr add dev $PPP_IFACE $IPLOCAL/32
ip -n $ns link set dev $PPP_IFACE up
ip -n $ns route del default
ip -n $ns route add default dev $PPP_IFACE

ip netns exec $ns curl -s "http://$user:$pass@www.ovh.com/nic/update?system=dyndns&hostname=$domain"