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Networking PTL
Twitter: @mestery
IRC: mestery
Kyle Mestery
Liberty Update
OpenStack Networking
To implement services and associated libraries to
provide on-demand, scalable, and technology-
agnostic network abstraction.
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
Neutron Liberty Priorities
● Phase 2 of plugin decomposition
● Reference plugin (ML2+[OVS,LB]) decomposition
● API micoverisoning
● Reliable quota support
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
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
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
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
REST / RPC / Plugin API Refactor
● Switching to pecan from homegrown WSGI (work
ongoing in feature/pecan branch)
● API Microversioning
● RPC versioning and upgrade checking
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
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
Pluggable IPAM
● Create a pluggable IPAM system inside of
Neutron
● Allows the use of third-party and vendor IPAM
system
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
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
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
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
New Plugins Proposed
● Dragonflow L3 DVR Plugin
● Infloblox IPAM/DHCP Plugin
● KEMP Technologies LBaaS V2 Driver
● Libreswan VPNaaS Driver
● Octavia LBaaS V2 Driver
Things disappearing in Liberty
● Metaplugin
[Neutron] on openstack-dev mailing list
#openstack-neutron Freenode

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OpenStack Neutron Liberty Updates

  • 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