fix: Ignore mknod errors (#486)

# Create the necessary file structure for /dev/net/tun

if [ ! -c /dev/net/tun ]; then

  [ ! -d /dev/net ] && mkdir -m 755 /dev/net

  mknod /dev/net/tun c 10 200

  if mknod /dev/net/tun c 10 200; then

    chmod 666 /dev/net/tun

  fi

fi

[ ! -c /dev/net/tun ] && error "TUN network interface not available..." && exit 25

if [ ! -c /dev/net/tun ]; then

  error "Please add the following docker settings to your container: --device=/dev/net/tun" && exit 25

fi

# Create the necessary file structure for /dev/vhost-net

if [ ! -c /dev/vhost-net ]; then

  mknod /dev/vhost-net c 10 238

  if mknod /dev/vhost-net c 10 238; then

    chmod 660 /dev/vhost-net

  fi

fi

update-alternatives --set iptables /usr/sbin/iptables-legacy > /dev/null

update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy > /dev/null