Open Stack

Pip Package Name Supported By Centos CentOS Name                      Repo Name
======================================================================================================================
ansible                   yes
ansible1.9.noarch                epel
docker-py              yes
python-docker-py.noarch    extras
gitdb                      yes
python-gitdb.x86_64            epel
GitPython              yes
GitPython.noarch                epel
oslo.config             yes
python2-oslo-config.noarch centos-openstack-mitaka
pbr                        yes
python-pbr.noarch               epel
setuptools             yes
python-setuptools.noarch    base
six                         yes
python-six.noarch                 base
pycrypto                yes
python2-crypto                      epel
graphviz                no
Jinja2                    no (Note: Jinja2 2.7.2 will be installed as
dependency by ansible)


As above table shows, only two (graphviz and Jinja2) are not supported
by centos currently. As those not supported packages are definitly not
used by OpenStack as well as Daisy. So basicaly we can use pip to
install them after installing other packages by yum. But note that
Jinja2 2.7.2 will be installed as dependency while yum install
ansible, so we need to using pip to install jinja2 2.8 after that to
overide the old one. Also note that we must make sure pip is ONLY used
for installing those two not supported packages.

But before you trying to use pip, please consider these:

1) graphviz is just for saving image depend graph text file and is not
used by default and only used in build process if it is configured to
be used.

2) Jinja2 rpm can be found at
http://koji.fedoraproject.org/koji/packageinfo?packageID=6506, which I
think is suitable for CentOS. I have tested it.

So, as far as Kolla deploy process concerned, there is no need to use
pip to install graphviz and Jinja2. Further more, if we do not install
Kolla either then we can get ride of pip totally!

I encourage all of you to think about not using pip any more for
Daisy+Kolla, because pip hase a lot of overlaps between yum/rpm, files
may be overide back and force if not using them carefully. So not
using pip will make things easier and make jump server more cleaner.
Any ideas?


Thanks,
Zhijiang

-- 
Yours,
Jason