> Op 25 juli 2017 om 18:53 schreef Rene Moser <m...@renemoser.net>: > > > Hi > > Speaking about VR improvements: I would like to change the way we need > to find the metadata API. > > Currently we do something like "cat > /var/lib/dhclient/dhclient-eth0.leases | grep dhcp-server-identifier | > tail -1" to find the IP of the service. > > However, parsing a dhcp lease file is not the best option and it is not > consistent across OS levels. > > OpenStack and EC2 AWS uses 169.254.169.254. Would it make sense to adopt > this? >
This has been discussed before and right now there is a PR for using Config Drive: https://github.com/apache/cloudstack/pull/2116 The problem with 169.254.169.254 is: - It doesn't work with IPv6 - It doesn't work with Basic Networking - You need to do iptables intercepting on the VR Config Drive is a IP-protocol independent solution for getting metadata into the Instance without the need for IP connectivity. Imho that's a much better solution. Wido > René
