Oslo/blueprints/message-proxy-server
Contents
Oslo.messaging: message proxy
- blueprint https://blueprints.launchpad.net/oslo.messaging/+spec/message-proxy-server
- https://review.openstack.org/77862 _driver: implement unix domain support
- https://review.openstack.org/77863 proxy: implement proxy server
proxy message between two messaging servers or transports
One message server is in openstack control network which openstack servers connect to and another message server is in openstack tenant network which agents connect to. Openstack server wants to send RPC message to agents in tenant networks. The control network isn't directly connected to tenant network. So proxy server relays RPC message over unix domain socket to bypass Linux netns. The supported RPC is cast, call and fanout. notification isn't supported because it's not needed at this moment. But it's easy to add it.
Use Cases
Many openstack projects uses server<-> guest agent pattern. Murano, Heat, savanna,
- Heat, Savanna, Trove, Murano, Solum
- Neutron for NFV(Network Function Virtualization)
Neutron also wants similar communication to guest agent for NFV support.
https://blueprints.launchpad.net/neutron/+spec/adv-services-in-vms
design/implementation
To be filled
supported RPC semantics
to be filled
what's added to oslo.messaging
to be filled
