Dmitris: Your best bet would be to take a look at the Quantum project: https://launchpad.net/quantum
Take care, Lorin -- Lorin Hochstein Lead Architect - Cloud Services Nimbis Services, Inc. www.nimbisservices.com On Mar 15, 2012, at 10:25 AM, Dimitris Theodorou wrote: > Hi, > > I am working on a cloud network resource provisioning service, which > will accomodate networking among virtual machines by configuring the > network hardware(switches) that lies between the hosts. The goal of the > service is 1) to undo the "vlan clean" requirement that you have in > Nova and other cloud stacks, 2) to be able to provide bandwidth > requests and 3) to take decisions on how the network will be allocated > based on the current switching and network infrastructure of the > cluster that hosts the cloud service. The service should also easily > support any switch model. > > The simplest functionality of the system (let's call it NRS) is that it > receives a request containing a network, as well as the VM hosts that > should be connected to it. It then chooses a suitable vlan (if not > given), and configures host bridges and switches involved so that the > network is realised. (the latter part may have some association with > Nova's Network controller, however I have not looked into Nova > implementation details yet). > > To interface with Nova to receive the request, the idea is that I need a > single point during its execution when all VMs that belong to a network > are assigned to hosts, but before the VMs are actually launched. The > host-vm info is to be sent to NRS, which will respond with whether Nova > can proceed with launching VMs. However I do not know how Nova's > Scheduler assigns hosts and if it allows for such a concept, or it has > to be modifed. > > My question is: > > Is there such a point during Nova execution where I can easily insert > the NRS functionality, or are things more complicated? Also if you have > any comments/criticism on the project and how it fits with OpenStack > I would be happy to hear them. > > Dimitris > > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : openstack@lists.launchpad.net > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp
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