Fix network on lxd

net.sh

for cnt in $(lxc list --format csv --columns n)
do
        GATEWAY_NUM=$(lxc exec $cnt -- bash -c 'route -n -A inet6 | grep -F "::/0" | grep -Fv "!n" | wc -l')
        if [ $GATEWAY_NUM -eq 0 ]
        then
                echo restart network on $cnt
                lxc exec $cnt -- netplan apply
        fi
done