[openstack-dev] [openstack-ansible] Limiting pip wheel builds for OpenStack clients

Mooney, Sean K sean.k.mooney at intel.com
Wed Jan 24 20:30:19 UTC 2018

> -----Original Message-----
> From: Major Hayden [mailto:major at mhtx.net]
> Sent: Wednesday, January 24, 2018 8:03 PM
> To: OpenStack Development Mailing List (not for usage questions)
> <openstack-dev at lists.openstack.org>
> Subject: [openstack-dev] [openstack-ansible] Limiting pip wheel builds
> for OpenStack clients
> Hey there,
> I was spelunking into the slow wheel build problems we've been seeing
> in CentOS and I found that our wheel build process was spending 4-6
> minutes building cassandra-driver. The wheel build process usually
> takes 8-12 minutes, so half the time is being spent there.
> More digging revealed that cassandra-driver is a dependency of python-
> monascaclient, which is a dependency of heat. The requirements.txt for
> heat drags in all of the clients:
>   https://github.com/openstack/heat/blob/master/requirements.txt
[Mooney, Sean K] the python-monascaclient package is presumably an optional
Dependency of heat as are the other client.
E.g. I would hope that if you are using a heat with a cloud that does not have
Monasca it could still run without have python-monascaclient installed so
All of the clients should proably be move form the requirements.txt to the
test-requiremetns.txt and only the minimal required packages for heat to work
should be in requirements.txt.
> We're already doing selective wheel builds and building only the wheels
> and venvs we need for the OpenStack services which are selected for
> deployment. Would it make sense to reduce the OpenStack client list for
> heat during the wheel/venv build? For example, if we're not deploying
> monasca, should we build/venv the python-monascaclient package (and its
> dependencies)?
> I've opened a bug:
>   https://bugs.launchpad.net/openstack-ansible/+bug/1745215
> --
> Major Hayden
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