enable bridge command for openvswitch agent

[edan david]

Neutron's openvswitch agent has an extension called "fdb" that uses linux "bridge" command.
currently, this command is not enabled for ovs agent by the wrootwrap filter.

This is required to enable fdb extension, otherwise, we will encounter an unhandled exception:

Initializing agent extension 'fdb'
2017-10-02 17:47:50.942 51765 INFO oslo_rootwrap.client [req-53d535f1-4622-4550-ae0e-f0b0fe238520 - - - - -] Spawned new rootwrap daemon process with pid=51824
2017-10-02 17:47:50.948 51765 ERROR neutron.agent.linux.utils [req-53d535f1-4622-4550-ae0e-f0b0fe238520 - - - - -] Rootwrap error running command: ['bridge', 'fdb', 'show', 'dev', 'ens6f0']
2017-10-02 17:47:50.949 51765 ERROR neutron.plugins.ml2.drivers.openvswitch.agent.openflow.native.ovs_ryuapp [req-53d535f1-4622-4550-ae0e-f0b0fe238520 - - - - -] Agent main thread died of an exception

[Slawek Kaplonski (slaweq)]

Patch to fix this bug: https://review.openstack.org/517985

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/517985
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=c6d8ccb640b2c724c575c640ea044a5d3c711e2e
Submitter: Zuul
Branch: master

commit c6d8ccb640b2c724c575c640ea044a5d3c711e2e
Author: Edan David <email address hidden>
Date: Mon Nov 6 08:20:52 2017 -0500

    Enable bridge command for openvswitch agent

    Allow ovs agent to run bridge command.
    This is necessary because FDB extension uses bridge to update the FDB table.

    Closes-Bug: #1730407

    Change-Id: I0897f1efcf36fc7f6f06e80c3b29c0e1fa14b141

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/pike
Review: https://review.openstack.org/518713

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/518713
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=0c3d3c48a73f97cb5924a5fbfce9726a7097ae2e
Submitter: Zuul
Branch: stable/pike

commit 0c3d3c48a73f97cb5924a5fbfce9726a7097ae2e
Author: Edan David <email address hidden>
Date: Mon Nov 6 08:20:52 2017 -0500

    Enable bridge command for openvswitch agent

    Allow ovs agent to run bridge command.
    This is necessary because FDB extension uses bridge to update the FDB table.

    Closes-Bug: #1730407

    Change-Id: I0897f1efcf36fc7f6f06e80c3b29c0e1fa14b141
    (cherry picked from commit c6d8ccb640b2c724c575c640ea044a5d3c711e2e)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron 11.0.2 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron 12.0.0.0b2 development milestone.