Hi, I have proposed a recent patch, that when using Neutron as the networking component in DevStack, the PUBLIC_INTERFACE that has been set should automatically be added to the OVS_PHYSICAL_BRIDGE.
https://review.openstack.org/#/c/158424/ There are a couple motivations for this patch. The first is that in my Vagrant project, I've been using chef[0] to attach the public interface to the OVS bridge, so that when a floating IP is NAT'd traffic flows from the interface attached to the router where the floating IP range is advertised, into the L3 agent. This is basically the same step documented for setting up a production Neutron install[1]. The fact that we are not doing this for DevStack installations is an oversight that should be corrected. The second motivation for this patch is to help transition DevStack users from Nova-Networking. Recently, we tried to move Neutron to being the default, but the lack of code to configure DevStack on machines with a single network interface caused a lot of issues and had to be reverted. In cases where DevStack is being run on a developer machine, where only one physical interface is present, DevStack will remove the IP address that has been assigned to the machine and adds it to the OVS_PHSYICAL_BRIDGE, so that the machine as well as the OpenStack APIs are reachable, while also allowing the usage of floating IPs. An example local.conf shows how this is configured. On this machine, we have a router that advertises the 192.168.27.0/24 prefix. The DevStack machine will be assigned 192.168.27.2 from DHCP, and the remaining IPs in the /24 will be used for floating IP addresses. HOST_IP=192.168.27.2 FLAT_INTERFACE=eth0 PUBLIC_INTERFACE=eth0 FIXED_RANGE=10.0.0.0/24 FLOATING_RANGE=192.168.27.0/24 PUBLIC_NETWORK_GATEWAY=192.168.27.1 disable_service n-net enable_service q-svc enable_service q-agt enable_service q-dhcp enable_service q-meta enable_service q-l3 Q_USE_SECGROUP=True ENABLE_TENANT_VLANS=True TENANT_VLAN_RANGE=3001:4000 OVS_PHYSICAL_BRIDGE=br-ex Q_L3_ENABLED=True Q_FLOATING_ALLOCATION_POOL=start=192.168.27.3,end=192.168.27.254 I'd be interested in feedback from everyone about my thought process, code, and if I'm on the right track. [0]: https://github.com/sc68cal/chef-devstack/blob/master/recipes/default.rb#L50 [1]: http://docs.openstack.org/admin-guide-cloud/content/install_neutron-l3.html [2]: https://review.openstack.org/#/c/153208/ -- Sean M. Collins __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev