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Thierry suggested that I merge prop this to get feedback, even though it is too late to get a branch of this size in for D-4. Feedback will help determine whether we can get this code in during the Diablo time frame or not. This branch was developed stacked on top of the melange branch, which is still not merged, but I am merge-propping it without that branch so that the diff is correct. The vast majority of the code is in nova/network/quantum and is only invoked if the network manager is set to nova.network.quantum.QuantumManager In addition to implementing networks with Quantum instead of the linux bridge, the QuantumManager also provides a new, more flexible model of associating vNICs with networks. It supports the creation of networks that are specific to a project and networks that are "global". When a VM is created, it gets a vNIC for each project network, as well as each global network. For example, this could support giving a VM a "public" vNIC on a shared network and a "private" vNIC on a tenant-specific network. The branch also implements Tushar's 'os-create-server-ext' extension, so that the server create API call can indicate the set of networks the VM should be attached to (if this extension is used, it replaces the above mechanism for determining vNICs). QuantumManager can use either the traditional IPAM functionality in nova DB (i.e., the networks, fixed_ips tables) or melange. Similar to FlatManager, QuantumManager does not currently support DHCP, gateway/NAT, or floating IPs. This branch requires additional testing before it is really ready for merge, but we thought it would be best to merge prop as soon as possible to identify any significant concerns people had.
The Choose Your Own Adventure README for Nova: You have come across a cloud computing fabric controller. It has identified itself as "Nova." It is apparent that it maintains compatibility with the popular Amazon EC2 and S3 APIs. To monitor it from a distance: follow @novacc on twitter To tame it for use in your own cloud: read http://nova.openstack.org/getting.started.html To study its anatomy: read http://nova.openstack.org/architecture.html To dissect it in detail: visit http://code.launchpad.net/nova To taunt it with its weaknesses: use http://bugs.launchpad.net/nova To watch it: http://hudson.openstack.org To hack at it: read HACKING To laugh at its PEP8 problems: http://hudson.openstack.org/job/nova-pep8/violations To cry over its pylint problems: http://hudson.openstack.org/job/nova-pylint/violations