[CentOS] yum update dosen't work with two ruby in repos

[Dmitry Tyzhnenko]

Failed on CI - http://jenkins-product.srt.mirantis.net:8080/job/6.1.centos.bvt_1/330/console

yum update dosen't work propertry, bacaus we have two version of ruby in repositories.

http://paste.openstack.org/show/205666/

How to reproduce:
            1. Create cluster with CeonOS
            2. Add 3 nodes with controller roles
            3. Add 2 nodes with compute roles
            4. Set up cluster to use Network VLAN manager with 8 networks
            5. Deploy the cluster
            6. Login in to slave node
            7. run `yum -y clean all && yum check-update ; echo $?`

If we exclude ruby we'll got exit code 0.

http://paste.openstack.org/show/205667/

While we have several version of ruby in repository and want use yum update we can add exclude rule for ruby into /etc/yum.conf on CentOS nodes

[Dmitry Tyzhnenko (dtyzhnenko)]

related bug - https://bugs.launchpad.net/fuel/+bug/1403088

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.openstack.org/177251

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/177251
Committed: https://git.openstack.org/cgit/stackforge/fuel-qa/commit/?id=ed73184ddc29091eebc9313562e132179dbd0f3c
Submitter: Jenkins
Branch: master

commit ed73184ddc29091eebc9313562e132179dbd0f3c
Author: Dmitry Tyzhnenko <email address hidden>
Date: Fri Apr 24 16:14:30 2015 +0300

    Temtorary disable repo check on CentOS

    While bugs #1403088 and #1448114 not fix, repo check test fails after
        deploy cluster. This can affect other tests. We may disable repo
        checker while bugs not fix

    Change-Id: Ieefe3042dd33987c66f8e1ec91f611863cdf4ba4
    Related-bug: #1403088
    Related-bug: #1448114

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/177850

[OpenStack Infra (hudson-openstack)]

Change abandoned by Sergii Golovatiuk (<email address hidden>) on branch: master
Review: https://review.openstack.org/177850