Neutron PTL, Kyle Mestery, provides project updates from Kilo to Liberty

1. Networking PTL
Twitter: @mestery
IRC: mestery
Kyle Mestery
Liberty Update
OpenStack Networking

2. To implement services and associated libraries to
provide on-demand, scalable, and technology-
agnostic network abstraction.

3. Neutron Kilo Release
● 45 blueprints completed
● 544 bugs closed
● Advanced services split into separate git
repositories and release tarballs
● Plugin decomposition effort started resulting in
10+ plugin/driver decomposition efforts

4. Neutron Liberty Priorities
● Phase 2 of plugin decomposition
● Reference plugin (ML2+[OVS,LB]) decomposition
● API micoverisoning
● Reliable quota support

5. Neutron and nova-network
● Icehouse set the groundwork for achieving this
● During Juno and Kilo, features such as DVR
closed the functionality gap
● During Liberty, the focus will be on:
● Ensuring the Linuxbridge driver is tested in the
gate
● “Get Me a Network” work
● Documenting shared provider networks as a
minimal setup comparable to nova-network
installs of note

6. Neutron Stadium
● In accordance with the “Big Tent” OpenStack
governance model, Neutron has also changed its
governance model
● Allowing plugin backends to re-enter Neutron via
the Stadium as their own gerrit repositories
● Growing the ecosystem under Neutron as a
platform

7. Neutron Governance Changes in Detail
● New Lieutenant Model allows scaling core
reviewers
● New process for defining work (Request For
Enhancement or RFE) allows for streamlining the
way work is proposed

8. Plugin Decomposition: Phase 2
● Phase 1 completed during Kilo
● Phase 2 will completely remove all third-party
code from the main Neutron repository
● Split out the reference implementation plugin into
it’s own repository
● Advanced services decomposition as well
● With governance changes, most repositories are
now being added into the Neutron Stadium

9. REST / RPC / Plugin API Refactor
● Switching to pecan from homegrown WSGI (work
ongoing in feature/pecan branch)
● API Microversioning
● RPC versioning and upgrade checking

10. Quality of Service
● Liberty focus is to enable bandwidth limiting
● We will also layout the QoS models for future API
and model extensions introducing additional QoS
concepts
● QoS policies apply either per-port or per-network

11. Role Based Access Control for Networks
● Currently, the shared network concept is not granular
● This work will allow for a more granular approach and
allow tenants to share network resources with other
tenants
● Allows an operator to define a network with limited
access, but also covers the case where operators pre-
create networks for tenants to connect to

12. Pluggable IPAM
● Create a pluggable IPAM system inside of
Neutron
● Allows the use of third-party and vendor IPAM
system

13. Address Scopes, BGP, and Routed Networks
● Allows for the continued evolution of network routing in
Neutron, both in terms of the API and usage
● Allow Neutron to advertise routes externally using BGP
● Allow “Address Scopes” to be a first-class citizen in the
Neutron API
● Allow a router to connect networks without consuming IP
addresses on them

14. Flavor Framework
● A way for operators to offer network services to
their clients
● Allows separation of driver functionality and
configuration from consumers of services
● Allows operators to configure additional vendor
features in an end-user agnostic way

15. Neutron NFV Work
● Working with the NFV sub-team in OpenStack to
integrate features relevant in this space
● More seamlessly connect hardware and neutron
L2 segments (e.g. with Ironic)
● Unaddressed port (e.g. port without an l3-address
and subnet attachment)
● Trunk ports to virtual machines

16. Neutron LBaaS Work
● Add support for Layer-7 switching (e.g. content
based routing)
● Support Octavia as the default reference
implementation for LBaaS
● Octavis is a service-VM based LBaaS
implementation which uses haproxy underneath

17. New Plugins Proposed
● Dragonflow L3 DVR Plugin
● Infloblox IPAM/DHCP Plugin
● KEMP Technologies LBaaS V2 Driver
● Libreswan VPNaaS Driver
● Octavia LBaaS V2 Driver

18. Things disappearing in Liberty
● Metaplugin

19. [Neutron] on openstack-dev mailing list
#openstack-neutron Freenode