Hi Dimitris, This sounds a lot like what the Quantum API and plugin interface is intended to support. I'd check out: http://wiki.openstack.org/Quantum and feel free to send email to the netstack list for details on integration new functionality.
Dan On Thu, Mar 15, 2012 at 7:19 AM, Dimitris Theodorou <dtheo...@nikhef.nl>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<https://launchpad.net/~openstack> > Post to : openst...@lists.launchpad.net > Unsubscribe : > https://launchpad.net/~**openstack<https://launchpad.net/~openstack> > More help : > https://help.launchpad.net/**ListHelp<https://help.launchpad.net/ListHelp> > -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~ Dan Wendlandt Nicira Networks: www.nicira.com twitter: danwendlandt ~~~~~~~~~~~~~~~~~~~~~~~~~~~
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