package update issues with RHEL on contrail 3.1

[Ankit Chadha]

net-snmp package got upgraded upstream, and our Contrail package is still on the old version.

This causes multilib failures during installation from 3.1 onwards.

Nagendra is aware of this issue and has provided manual steps to workaround this problem.

Workaround:
0. Backup contrail repo, cp /etc/yum.repos.d/contrail-install.repo /etc/yum.repos.d/contrail-install.repo.org
1. Move Contrail repo's priority equal to that of redhat repos in /etc/yum.repos.d/contrail-install.repo
2. yum clean all && yum clean expire-cache
3. yum list net-snmp-python --show-duplicates and make sure package from rhel-7-server-optional-rpms repo is displayed
4. yum install --downloadonly install net-snmp-python
5. find /var/cache/yum/x86_64/7Server/ -name "*.rpm" -exec cp {} /tmp \;
6. Reset contrail repo, cp /etc/yum.repos.d/contrail-install.repo.org /etc/yum.repos.d/contrail-install.repo
7. yum clean all && yum clean expire-cache
8. yum install /tmp/net-snmp-python*

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/24382
Submitter: Nagendra Prasath (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/24387
Submitter: Nagendra Prasath (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/24382
Committed: http://github.org/Juniper/contrail-packaging/commit/40e97b1b750fe153508134d03792bf4e24738f00
Submitter: Zuul
Branch: master

commit 40e97b1b750fe153508134d03792bf4e24738f00
Author: Nagendra Chandran <email address hidden>
Date: Thu Sep 22 07:44:10 2016 -0700

Rebuilt net-snmp-python with the latest version as the upstream net-snmp-* packages got updated

Change-Id: Ic97fad9eeb89bcdbae7374eacdfcefe5736ea6c5
Closes-Bug: 1615120

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/24387
Committed: http://github.org/Juniper/contrail-packaging/commit/ac06484b8c8fca244b384fe52b15d960e2d4dc93
Submitter: Zuul
Branch: R3.1

commit ac06484b8c8fca244b384fe52b15d960e2d4dc93
Author: Nagendra Chandran <email address hidden>
Date: Thu Sep 22 07:44:10 2016 -0700

Rebuilt net-snmp-python with the latest version as the upstream net-snmp-* packages got updated

Change-Id: Ic97fad9eeb89bcdbae7374eacdfcefe5736ea6c5
Closes-Bug: 1615120
(cherry picked from commit 40e97b1b750fe153508134d03792bf4e24738f00)