Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

Bug 1254897

Summary:	Not configuring neutron mechanism drivers in any puppet based deploys
Product:	Red Hat OpenStack	Reporter:	Marios Andreou <mandreou>
Component:	openstack-tripleo-heat-templates	Assignee:	Marios Andreou <mandreou>
Status:	CLOSED ERRATA	QA Contact:	Marius Cornea <mcornea>
Severity:	unspecified	Docs Contact:	Alexander Chuzhoy <sasha>
Priority:	high
Version:	7.0 (Kilo)	CC:	calfonso, dmacpher, jstransk, mburns, mcornea, ohochman, rhel-osp-director-maint, sasha
Target Milestone:	y1	Keywords:	Triaged, ZStream
Target Release:	7.0 (Kilo)
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	openstack-tripleo-heat-templates-0.8.6-52.el7ost	Doc Type:	Bug Fix
Doc Text:	Overcloud deployments did not consume nor affect the Neutron mechanism driver parameter passed as hiera data from the corresponding Heat template. This meant Overcloud deployments contained an unexpected Neutron configuration, with both openvswitch and linuxbridge configured as mechanism_drivers in /etc/neutron/plugins/ml2/ml2_conf.ini as such: mechanism_drivers = openvswitch,linuxbridge This fix ensures the Overcloud deployment correctly consumes the neutron_mechanism_drivers hiera data item passed from the Heat templates and sets this in the Meutron ml2 configuration on the controller node. You can also specify the NeutronMechanismDrivers Heat template parameter and as a custom parameter and expect the corresponding ml2 configuration for Neutron.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-10-08 12:16:55 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1261045

Description Marios Andreou 2015-08-19 08:07:28 UTC

Description of problem:
Neutron Mechanism Drivers for the overcloud aren't configured. I don't know if this is bug worthy but filing this so it can be tracked (looked at this thanks to Tim Swanson comments @ [1]).

The tripleo heat templates say 'openvswitch' for the default for this value (description of what this config is at [2]). Whilst we do correctly set the hiera data passed to puppet, we don't consume it, meaning the deployment config is like:

./plugin.ini:20:mechanism_drivers =openvswitch,linuxbridge
./plugins/ml2/ml2_conf.ini:20:mechanism_drivers =openvswitch,linuxbridge

which is the puppet-neutron module default. Even though we end up with correct behaviour (since afaik we've only ever used openvswitch for ml2 here) I think the bug is the expectation that the config item is configurable via the tripleo heat template param, which it is not in reality (tripleo image element deploys do consume and set this in the pass though data)

[1] https://review.openstack.org/#/c/198754/10
[2] http://docs.openstack.org/kilo/config-reference/content/networking-options-plugins-ml2.html

Version-Release number of selected component (if applicable):


How reproducible:
every time

Steps to Reproduce:
1. deploy an overcloud, try to set NeutronMechanismDrivers (or even just leave the default, which is 'openvswitch')
2. [root@overcloud-controller-0 ~]# grep -rn 'mechanism_drivers' /etc/neutron/*
3. profit  ("=openvswitch,linuxbridge")

Actual results:
./plugins/ml2/ml2_conf.ini:20:mechanism_drivers =openvswitch,linuxbridge

Expected results:
Would expect the mechanism_driver to be set to 'openvswitch' only as that is the tht default

Additional info:

Comment 3 Marios Andreou 2015-08-19 14:45:36 UTC

literally one line fixup https://review.openstack.org/#/c/214649/

Comment 4 Marios Andreou 2015-08-24 17:12:07 UTC

upstream bug at https://bugs.launchpad.net/tripleo/+bug/1488176

Comment 7 Jiri Stransky 2015-09-08 13:55:17 UTC

*** Bug 1261054 has been marked as a duplicate of this bug. ***

Comment 9 Alexander Chuzhoy 2015-09-22 14:57:33 UTC

Verified:


Environment:
openstack-tripleo-heat-templates-0.8.6-64.el7ost.noarch

grep -rn ^mechanism_drivers /etc/neutron/plugins
/etc/neutron/plugins/ml2/ml2_conf.ini:20:mechanism_drivers =openvswitch

The mechanism_driver is set to 'openvswitch' only as expected.

Comment 11 errata-xmlrpc 2015-10-08 12:16:55 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2015:1862