Ussuri Series Release Notes

18.0.0.0b1-242

New Features

  • Support for the networking-generic-switch mechanism driver has been implemented. This allows Ironic to interface with Neutron when the neutron network interface has been configured. This feature may be enabled by adding ml2.genericswitch to the neutron_plugin_types list in /etc/openstack_deploy/user_variables.yml.

  • The Neutron Service Function Chaining Extension (SFC) can optionally be deployed and configured by defining the following service plugins:

    • flow_classifier

    • sfc

    neutron_plugin_base:
- router
- metering
- flow_classifier
- sfc

    For more information about SFC in Neutron, refer to the following:

  • The provider_networks library has been updated to support the definition of network interfaces that can automatically be added as ports to OVS provider bridges setup during a deployment. To activate this feature, add the network_interface key to the respective flat and/or vlan provider network definition in openstack_user_config.yml. For more information, refer to the latest Open vSwitch deployment guide.

  • The service setup in keystone for neutron will now be executed through delegation to the neutron_service_setup_host which, by default, is localhost (the deploy host). Deployers can opt to rather change this to the utility container by implementing the following override in user_variables.yml.

    neutron_service_setup_host: "{{ groups['utility_all'][0] }}"

  • The role now supports using the distribution packages for the OpenStack services instead of the pip ones. This feature is disabled by default and can be enabled by simply setting the neutron_install_method variable to distro.

  • Support separate oslo.messaging services for RPC and Notifications to enable operation of separate and different messaging backend servers in neutron.

Upgrade Notes

  • The plugin names for the classifier and sfc changed:

    • networking_sfc.services.flowclassifier.plugin.FlowClassifierPlugin => flow_classifier

    • networking_sfc.services.sfc.plugin.SfcPlugin => sfc

  • The provider_networks library has been updated to support the definition of network interfaces that can automatically be added as ports to OVS provider bridges setup during a deployment. As a result, the network_interface value applied to the neutron_provider_networks override in user_variables.yml, as described in previous Open vSwitch deployment guides, is no longer effective. If overrides are necessary, use network_interface_mappings within the provider network override and specify the respective bridge-to-interface mapping (e.g. “br-provider:bond1”). For more information, refer to the latest Open vSwitch deployment guide.

Deprecation Notes

  • Dragonflow is no longer maintained as an OpenStack project and has therefore been removed from OpenStack-Ansible as a supported ML2 driver for neutron.

  • Support of the legacy neutron L3 tool has been dropped. Deployers are appreciated to use built-in l3-agent options for configuring HA.

  • The deprecated Neutron LBaaS v2 plugin has been removed from the Neutron role.

  • The variable neutron_requires_pip_packages is no longer required and has therefore been removed.

  • The rabbitmq server parameters have been replaced by corresponding oslo.messaging RPC and Notify parameters in order to abstract the messaging service from the actual backend server deployment. - neutron_oslomsg_rpc_servers replaces neutron_rabbitmq_servers - neutron_oslomsg_rpc_port replaces neutron_rabbitmq_port - neutron_oslomsg_rpc_use_ssl replaces neutron_rabbitmq_use_ssl - neutron_oslomsg_rpc_userid replaces neutron_rabbitmq_userid - neutron_oslomsg_rpc_vhost replaces neutron_rabbitmq_vhost - neutron_oslomsg_notify_servers replaces neutron_rabbitmq_telemetry_servers - neutron_oslomsg_notify_port replaces neutron_rabbitmq_telemetry_port - neutron_oslomsg_notify_use_ssl replaces neutron_rabbitmq_telemetry_use_ssl - neutron_oslomsg_notify_userid replaces neutron_rabbitmq_telemetry_userid - neutron_oslomsg_notify_vhost replaces neutron_rabbitmq_telemetry_vhost

Bug Fixes

  • Fixes neutron HA routers, by enabling neutron-l3-agent to invoke the required helper script.

  • The RyuBgpDriver is no longer available and replaced by the OsKenBgpDriver of the neutron_dynamic_routing project.