ubuntu kolla-toolbox gate fails with module mysqldb is required

[Steven Dake]

Running via docker exec seems to work (as in not produce the import error) on my local machine:
docker run -t kolla/ubuntu-source-kolla-toolbox:3.0.0 sleep infinity
^Z
[1]+ Stopped docker run -t kolla/ubuntu-source-kolla-toolbox:3.0.0 sleep infinity
[sdake@minime-02 kolla]$ bg

[sdake@minime-02 kolla]$ docker exec -t 545 ansible localhost -m mysql_user -a "login_host='192.168.1.102' user='root' login_password='abc' name='haproxy' password='' host='abc'"
[WARNING]: log file at /var/log/kolla/ansible.log is not writeable and we cannot create it, aborting

localhost | FAILED! => {
    "changed": false,
    "failed": true,
    "msg": "unable to connect to database, check login_user and login_password are correct or /home/ansible/.my.cnf has the credentials. Exception message: (2003, 'Can\\'t connect to MySQL server on \\'192.168.1.102\\' (111 \"Connection refused\")')"
}

pip show shows:
[sdake@minime-02 kolla]$ docker exec -t 545 pip show MySQL-python
---
Metadata-Version: 1.1
Name: MySQL-python
Version: 1.2.5
Summary: Python interface to MySQL
Home-page: https://github.com/farcepest/MySQLdb1
Author: Andy Dustman
Author-email: <email address hidden>
License: GPL
Location: /usr/lib/python2.7/dist-packages
Requires:
Classifiers:
  Development Status :: 5 - Production/Stable
  Environment :: Other Environment
  License :: OSI Approved :: GNU General Public License (GPL)
  Operating System :: MacOS :: MacOS X
  Operating System :: Microsoft :: Windows :: Windows NT/2000
  Operating System :: OS Independent
  Operating System :: POSIX
  Operating System :: POSIX :: Linux
  Operating System :: Unix
  Programming Language :: C
  Programming Language :: Python
  Topic :: Database
  Topic :: Database :: Database Engines/Servers

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/358157
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=2e0c5ecbf8ea1dfa6749e5515a38ecfa58764312
Submitter: Jenkins
Branch: master

commit 2e0c5ecbf8ea1dfa6749e5515a38ecfa58764312
Author: Jeffrey Zhang <[e-mail]>
Date: Sat Aug 20 10:30:17 2016 +0800

    Fix Ubuntu source gate deployment

    In CI environment, MySQL-python wheel package has a wrong _mysql.so
    file, which is not compatible with Ubuntu.

    Disable wheel index in the CI for pip.

    Closes-Bug: #1615231
    Change-Id: I127ebb017e09a5bf245e0fdad9bf052203e68e55

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla 3.0.0.0b3 development milestone.