Open Stack

On Thu, Sep 24, 2015 at 04:25:31PM +0200, Thomas Goirand wrote:
> Hi,
> 
> It's about the 3rd time just this week, that I'm repairing an OpenStack
> component which is trying to write config files in /usr/etc. Could this
> non-sense stop please?

So I'm almost 100% that the intent for everyone doing this is for the files to
be written to /etc when system installing the packaging. It's being caused by
data_file lines in the setup.cfg putting things in etc/foo. Like in neutron:

http://git.openstack.org/cgit/openstack/neutron/tree/setup.cfg#n23

The PBR docs [1] say this will go to /etc if installing it in the system python
which obviously isn't the case. The are instead being installed to
sys.prefix/etc which works well for the venv case but not so much for system
installing a package.

The issue is with the use of data_files. I'm sure dstufft can elaborate on all
the prickly bits, but IIRC it's the use of setuptools of distutils depending on
how the package is being installed. (either via a wheel or sdist) I think the
distutils behavior is to install relative to sys.prefix and setuptools puts it
relative to site-packages. But, neither of those are really the desired
behavior...

> 
> FYI, this time, it's with os-brick... but it happened with so many
> components already:
> - bandit (with an awesome reply from upstream to my launchpad bug,
> basically saying he doesn't care about downstream distros...)
> - neutron
> - neutron-fwaas
> - tempest
> - lots of Neutron drivers (ie: networking-FOO)
> - pycadf
> - and probably more which I forgot.
> 
> Yes, I can repair things at the packaging level, but I just hope I wont
> have to do this for each and every OpenStack component, and I suppose
> everyone understands how frustrating it is...

It's an issue with python packaging that we need to fix, likely in PBR first.
But, I doubt this is isolated to PBR, we'll probably have to work on fixes to
distutils and/or setuptools too.

> 
> I also wonder where this /usr/etc is coming from. If it was
> /usr/local/etc, I could somehow get it. But here... ?!?

IIRC if you set the python sys.prefix to /usr/local it'll put the etc files
in /usr/local.

-Matt Treinish

[1] http://docs.openstack.org/developer/pbr/#files
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