Meetings/ML2

Weekly on Wednesdays at 1600 UTC on #openstack-meeting-alt

Agenda

Meeting January 8, 2014

Action items from last week:
- asadoughi: ml2 unit test coverage with line numbers! http://lists.openstack.org/pipermail/openstack-dev/2013-December/022649.html
ML2 Bugs

Meeting Dec 18, 2013

Action items from last week:
- asadoughi: ml2 unit test coverage
  - general ml2 plugin unit tests: http://lists.openstack.org/pipermail/openstack-dev/2013-December/021967.html
  - agent tests: http://lists.openstack.org/pipermail/openstack-dev/2013-December/022146.html
- asadoughi: blueprint ovs-firewall-driver
  - asking for feedback on security groups api addition http://lists.openstack.org/pipermail/openstack-dev/2013-December/022518.html
Development discussions
- MechanismDriver API delete method ordering and the relationship between DB state and external mechanism state managed by the driver
- TypeDriver refactor and the providernet and multiprovidernet extension APIs

Meeting Dec 11, 2013

Action items from last week:
- mestery: Setup etherpad for multi-node Tempest testing
  - https://etherpad.openstack.org/p/multi-node-neutron-tempest
Development discussions:
- blueprint ovs-firewall-driver: progress and technical discussion
  - purpose
  - openvswitch statelessness and security groups frontend API and DB: https://etherpad.openstack.org/p/ovs-firewall-driver-stateless-2
  - ovs_neutron_agent nuances:
    - (1) firewall invoked before agent does anything in C[R]UD operations
    - (2) agent removes all flows at initialization
    - (3) not sure about ovs having atomicity like iptables-restore has (all connections might be dropped/allowed)
  - if extra time, quickly mention:
    - working on adding IPv6 flows
    - working on adding multiple ports in range (try port bitmask or N flows per N ports?)
    - of course, need to add unit/integration tests; if someone wants to help on integration tests, that would be good if that's possible
    - neutron-rootwrap-xen-dom0 bugs: https://bugs.launchpad.net/neutron/+bug/1185872/comments/3, https://bugs.launchpad.net/neutron/+bug/1259748
    - other network types: should work as-is since the tunnel OVS flows just pass it to the integration bridge where firewall flows live, but test environment not setup to do so
    - table, priority coordination: ok for now to be hard-coded in Neutron, but will need an abstraction in the future possibly

Meeting Dec 4, 2013

Action items from last week:
- mestery: follow up with the ci team to determine if multi-node testing can be performed in the gate.
- asomya: provide review comments for TypeDriver patch from ZangMingJie.
Development issues
- VLAN availability issue during delete_port_postcommit()
Testing
- Additional unit tests needed
- Multi-node devstack based gate testing
- Tempest tests
  - Scenario tests around ML2+LinuxBridge
  - Scenario tests around ML2+L2 Population
  - Scenario tests around ML2+OpenDaylight (coming soon)
- Vendor Tempest testing discussion for MechanismDrivers
Revisit "Modular L2 TypeDriver extra port information"
- https://review.openstack.org/37893
- https://blueprints.launchpad.net/neutron/+spec/ml2-typedriver-extra-port-info

Previous Agenda

ML2 Sessions Etherpads from Icehouse summit:
- Extensibility of ML2 (Wednesday 4:40PM): https://etherpad.openstack.org/p/ML2_Extensibility
- ML2 QoS and Deprecated Plugin Migration (Wednesday 5:30PM): https://etherpad.openstack.org/p/neutron-qos-hk and https://etherpad.openstack.org/p/ML2_Deprecated_Plugin_Migration
- ML2 Multiple Backend Support (Friday 9:50AM)
- ML2 Mechanism Drivers and Modular Agents (Friday 1:30PM)
devstack ML2 patches
- Default devstack to ML2: https://bugs.launchpad.net/devstack/+bug/1220745
- Correctly set L3 service plugin for ML2: https://review.openstack.org/#/c/48522/
Documentation
- Need to focus on this now
- Documentation BP link: https://blueprints.launchpad.net/openstack-manuals/+spec/neutron-ml2-docs
- ML2 documentation bugs link: https://bugs.launchpad.net/openstack-manuals/+bugs?field.tag=ml2
- Need to document ML3 with ML2
Testing and bug fixes
- Testing of ML2 by everyone would be appreciated
- We need to find and fix any bugs in the next couple of weeks

Icehouse Design Summit Topic ideas
- RPC handling in ML2 for Type and Mechanism Drivers
- More extensible TypeDrivers for controller-based MechanismDrivers
- Monolithic Plugin vs. ML2 MechanismDriver - current and future plugins
- Future Directions for ML2 (orchestration, deployment, management, ...)
- Migration from deprecated Plugins (openvswitch, linuxbridge) to ML2 - automation?
- Add support for VXLAN multicast to the OVS agent with newer versions of OVS and Linux kernel.
- Multi-segment provider network implementations in MechanismDrivers, specifically OVS.
- Additional provider network attributes for controller-based plugins such as ODL for networks created outside of Neutron.

Icehouse ML2 work for reference

ML2 TypeDriver Extra Port Info
- https://blueprints.launchpad.net/neutron/+spec/ml2-typedriver-extra-port-info
Campus Network Blueprint and ML2 integration
- https://blueprints.launchpad.net/neutron/+spec/campus-network
OpenDaylight Driver
- https://blueprints.launchpad.net/quantum/+spec/ml2-opendaylight-mechanism-driver

Questions?

Previous Meeting Logs

Available here: ML2 Meeting Logs

General ML2 Information

Here are the current ml2-specific blueprints for havana:

These tunnel-related blueprints effect the openvswitch and/or linuxbridge agents, and the features should also (or exclusively) be supported (using both agents simultaneously where applicable) by the ml2 plugin:

These blueprints involve the ml2 MechanismDriver API: