Hello list, at work we've decided to move to openstack, actually we're running proxmox for vm management and this is our actual server configuration:
2 x kimsufi 24g @ http://www.kimsufi.co.uk/ The network is configured this way on the 2 hosts: - eth0 with binded the multiple /32 public ip - eth1 (virtual bridge) with a 10.8.0.0/16 network and all vm's eth0 is bridged there - eth2 (virtual bridge) with a 192.168.0.0/24 dhcp and all vm's eth1 is bridged there The eth1 interfaces are bridged between hosts so a vm from an host can ping a vm on the other host, these are the actual features provided: - host1 & host2 uses dnat to do a per-public-ip route to the correct vm, which has a fixed ip on vm's eth0 - the request can come from both host1 and host2, as each host before routing uses connmark + dscp to set from which gateway the requests came, and vm respond using the origin host - each vm directly access internet using the host which is running the vm using the vm's eth1 - i can migrate a vm from host1 to host2 without any change in the network configuration - i don't need to know which host is running the vm, i just need the vm's ip I've set a google doc to show a small example https://docs.google.com/document/d/1oIhUE7eAWDMtKdJlFmCw1jujo4XOGHD9w_ex_6TrGkw/edit How can i implement this using openstack? Is that possible? As the "private network"'s bandwith is shared with the public one because it's incapsulated between servers, this is what i need: - each vm uses its own host as default gateway - if a host receive a request for the public ip of a vm in another host it uses the private network to reach the correct vm in the other host - if a host receive a request for the public ip of a vm on that host it correctly route to the correct vm PS: in addiction of these 2 servers i was thinking to use a vps to run the services except compute and storage to be a always available cloud controller. 2nd PS: later we'll add more servers Thanks in advance, Best Regards Alessandro
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