Hi all,
I've slowly been configuring a single server with OpenStack for a
proof-of-concept I want to present to my managers. This single server is
co-located and directly exposed to the Internet. It has one active Ethernet
port (eth0) and one inactive and disconnected Ethernet port (eth1). I've
already set up br100 over eth0 (I was using KVM on this machine previously, so
bridging was already set up). This machine has an entire class "C" IPv4 network
(256 IPs) available to it.
I have both Keystone and Glance in place so far. I'm now working on configuring
Nova, specifically nova-network. For this PoC there's no need to get into the
(perceived) complexities of Quantum, though Quantum will eventually be a big
selling point, I believe.
I'm not yet sure of how to configure this server for networking. I want VMs to
be assigned public IPs from my pool, but also be on an internal network (albeit
all on the one server). I've read "Libvirt Flat Networking" and "Libvirt Flat
DHCP Networking" as well as many other pages pertaining to nova-network
configuration. I know this should be a simple setup, but the various pages have
done more to confuse me than anything else.
My /etc/network/interfaces is similar to that on the "Libvirt Flat Networking"
page, except I'm using static setup for the bridge as I've assigned an IP from
my network to the server. So it looks more like this:
auto lo
iface lo inet loopback
pre-up iptables-restore < /etc/iptables.up.rules
auto eth0
iface eth0 inet manual
auto br100
iface br100 inet static
network 204.187.138.0
gateway 204.187.138.1
address 204.187.138.2
broadcast 204.187.138.255
netmask 255.255.255.0
bridge_ports eth0
bridge_stp off
bridge_fd 0
bridge_maxwait 0
So after all that, how best should I configure nova-network on this single
server? I appreciate any guidance in advance, and am more than willing to
answer any questions to clarify my setup or intentions.
Thanks!
Daniel
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