[openstack-dev] a "common" client library

Jesse Noller jesse.noller at RACKSPACE.COM
Fri Jan 17 01:42:34 UTC 2014

On Jan 16, 2014, at 4:59 PM, "Renat Akhmerov" <rakhmerov at mirantis.com<mailto:rakhmerov at mirantis.com>> wrote:

On 16 Jan 2014, at 13:06, Jesse Noller <jesse.noller at RACKSPACE.COM<mailto:jesse.noller at RACKSPACE.COM>> wrote:

Since it’s pretty easy to get lost among all the opinions I’d like to clarify/ask a couple of things:

  *   Keeping all the clients physically separate/combining them in to a single library. Two things here:
     *   In case of combining them, what exact project are we considering? If this list is limited to core projects like nova and keystone what policy could we have for other projects to join this list? (Incubation, graduation, something else?)
     *   In terms of granularity and easiness of development I’m for keeping them separate but have them use the same boilerplate code, basically we need a OpenStack Rest Client Framework which is flexible enough to address all the needs in an abstract domain agnostic manner. I would assume that combining them would be an additional organizational burden that every stakeholder would have to deal with.

Keeping them separate is awesome for *us* but really, really, really sucks for users trying to use the system.

You may be right but not sure that adding another line into requirements.txt is a huge loss of usability.

It is when that 1 dependency pulls in 6 others that pull in 10 more - every little barrier or potential failure from the inability to make a static binary to how each tool acts different is a paper cut of frustration to an end user.

Most of the time the clients don't even properly install because of dependencies on setuptools plugins and other things. For developers (as I've said) the story is worse: you have potentially 22+ individual packages and their dependencies to deal with if they want to use a complete openstack install from their code.

So it doesn't boil down to just 1 dependency: it's a long laundry list of things that make consumers' lives more difficult and painful.

This doesn't even touch on the fact there aren't blessed SDKs or tools pointing users to consume openstack in their preferred programming language.

Shipping an API isn't enough - but it can be fixed easily enough.

Renat Akhmerov
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OpenStack-dev at lists.openstack.org<mailto:OpenStack-dev at lists.openstack.org>
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