HA cluster deployment with Rados GW failed with Could not prefetch l2_bridge provider 'ovs': undefined method `each_pair' for nil:NilClass

[Andrey Sledzinskiy]

{"build_id": "2015-04-17_15-24-00",
"ostf_sha": "4bab9b975ace8d9a305d6e0f112b734de587f847",
"build_number": "321",
"release_versions": {
"2014.2-6.1": {
"VERSION": {
"build_id": "2015-04-17_15-24-00",
"ostf_sha": "4bab9b975ace8d9a305d6e0f112b734de587f847",
"build_number": "321",
"api": "1.0",
"nailgun_sha": "939e5780cd0f7b1af3afd2926eda30f81bfc3e3f",
"openstack_version": "2014.2-6.1",
"production": "docker",
"python-fuelclient_sha": "0698062e9b044becf07bf9918fa16613aa3d93ad",
"astute_sha": "bf1751a4fe0d912325e3b4af629126a59c1b2b51",
"feature_groups":
["mirantis"],
"release": "6.1",
"fuelmain_sha": "5981d230e9484c196022a027c5c1600e36b17a72",
"fuellib_sha": "65617981bef34ea96b85d2d389cc037c304516e5"}}},
"auth_required": true,
"api": "1.0",
"nailgun_sha": "939e5780cd0f7b1af3afd2926eda30f81bfc3e3f",
"openstack_version": "2014.2-6.1",
"production": "docker",
"python-fuelclient_sha": "0698062e9b044becf07bf9918fa16613aa3d93ad",
"astute_sha": "bf1751a4fe0d912325e3b4af629126a59c1b2b51",
"feature_groups":
["mirantis"],
"release": "6.1",
"fuelmain_sha": "5981d230e9484c196022a027c5c1600e36b17a72",
"fuellib_sha": "65617981bef34ea96b85d2d389cc037c304516e5"}

Steps:
1. Create next cluster - HA, CentOS, Neutron Vlan, ceph for volumes and images, Rados GW, 3 controller, 3 compute+ceph
2. Start deployment

Actual result - deployment failed, node-3 puppet.log:
on Apr 20 09:48:30 +0000 2015 Puppet (err): Could not prefetch l2_bridge provider 'ovs': undefined method `each_pair' for nil:NilClass

Logs are attached

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/175428

[OpenStack Infra (hudson-openstack)]

Change abandoned by Vladimir Kuklin (<email address hidden>) on branch: master
Review: https://review.openstack.org/175428
Reason: Overriden by another patch

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/176307
Committed: https://git.openstack.org/cgit/stackforge/fuel-library/commit/?id=b46b395e7898a21785b71e416be40aec234be541
Submitter: Jenkins
Branch: master

commit b46b395e7898a21785b71e416be40aec234be541
Author: Stanislav Makar <email address hidden>
Date: Mon Apr 20 14:30:17 2015 +0000

    Unit tests for l23network module

    Change-Id: I1d3ec038ae301defa2197789f42454422ad66fbc
    Closes-bug: #1446187

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/170838
Committed: https://git.openstack.org/cgit/stackforge/fuel-library/commit/?id=110e12cc72f5c681c9b334afbb13f5ff72d50e51
Submitter: Jenkins
Branch: master

commit 110e12cc72f5c681c9b334afbb13f5ff72d50e51
Author: Sergey Vasilenko <email address hidden>
Date: Mon Apr 6 15:59:19 2015 +0300

    L23network related fixes:

    * l23network module initialization for granular deployment
    * wrong bridge type while creating integration and tun bridge.
    * bug/1446187

    Note: After refactoring L23network module default provider
    for bridges was changed from 'ovs' to 'lnx', but Neutron
    requires 'ovs' bridges in any way.
    Neutron no more need for creating br-int and br-tun
    (upstream-bug: https://bugs.launchpad.net/puppet-neutron/+bug/1436422)

    Change-Id: Ib28558f64111c967cfdd1b6ed1a2008b5767cb87
    Closes-bug: #1440681
    Closes-bug: #1446187
    Closes-bug: #1447665
    Closes-bug: #1447085
    Closes-bug: #1448157

[Anastasia Palkina (apalkina)]

Verified on ISO #357

"build_id": "2015-04-27_22-54-38", "build_number": "357", "release_versions": {"2014.2.2-6.1": {"VERSION": {"build_id": "2015-04-27_22-54-38", "build_number": "357", "api": "1.0", "fuel-library_sha": "0e5b82d24853304befb22145ac4aaf3545d295e1", "nailgun_sha": "5e52637d9944c2f4170012560d15ecf89a691af6", "feature_groups": ["mirantis"], "openstack_version": "2014.2.2-6.1", "production": "docker", "python-fuelclient_sha": "8cd6cf575d3c101dee1032abb6877dfa8487e077", "astute_sha": "c1793f982fda7e3fc7b937ccaa613c649be6a144", "fuel-ostf_sha": "b38602c841deaa03ddffc95c02f319360462cbe3", "release": "6.1", "fuelmain_sha": "1ec588d364b9b97f124f6d602dbcc4aa13327218"}}}, "auth_required": true, "api": "1.0", "fuel-library_sha": "0e5b82d24853304befb22145ac4aaf3545d295e1", "nailgun_sha": "5e52637d9944c2f4170012560d15ecf89a691af6", "feature_groups": ["mirantis"], "openstack_version": "2014.2.2-6.1", "production": "docker", "python-fuelclient_sha": "8cd6cf575d3c101dee1032abb6877dfa8487e077", "astute_sha": "c1793f982fda7e3fc7b937ccaa613c649be6a144", "fuel-ostf_sha": "b38602c841deaa03ddffc95c02f319360462cbe3", "release": "6.1", "fuelmain_sha": "1ec588d364b9b97f124f6d602dbcc4aa13327218"