Open Stack

On Jan 16, 2014, at 8:36 PM, "Renat Akhmerov" <rakhmerov at mirantis.com<mailto:rakhmerov at mirantis.com>> wrote:

Ok, I think most of the reasoning you’ve said makes sense. So for a non-incubated project we’re going to have separate clients and then get them integrated into this single client once the project itself gets incubated? Or it’s going to happen when the project gets integrated into core os projects? So if yes, it’s just going to be one more incubation/integration requirement, right?


My gut says moving more code into Oslo and incurring that change for all 22(23 with solum) client code based short term solves one aspect of cleaning up the clients - if - the sub projects agree that the code they are now depending on presents a useful API to them. It's not clear to me that case has been explained, or the design of those new libraries sussed out.

My personal opinion is that if people wanted the current consolidation to continue we let that go, but begin fleshing out what a stand alone project/library akin to horizon would look like (let's call it zenith).

If we go this route we need to buildout some blueprints with design / layout / APIs for people to review and approve.

When talking with dean today we actually see it as fewer layers but the most work : benefit comes from unifying and coordinating the client code from each of the projects. This latter part requires consensus from the teams on the layout and design, contributing to it, etc

Dean and I started an etherpad today, I need to go back through this thread and capture more design considerations and properly capture it in the wiki.

With at least a fleshed out strawman proposal for layout and design we can discuss concrete things. I think some of the contention is focused on the currently progressing work on a blueprint that doesn't fully capture the design and I'd like to avoid that.

Renat

On 16 Jan 2014, at 18:09, Donald Stufft <donald at stufft.io<mailto:donald at stufft.io>> wrote:


On Jan 16, 2014, at 8:42 PM, Jesse Noller <jesse.noller at RACKSPACE.COM<mailto:jesse.noller at RACKSPACE.COM>> wrote:



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.

There’s also the discovery problem, it’s incredibly frustrating if, as I’m starting out to use an Openstack based cloud, everytime I want to touch some new segment of the service I need to go find out what the client lib is for that, possibly download the dependencies for it, possibly get it approved, etc.

Splitting up services makes a lot of sense on the server side, but to the consumer a cloud often times isn’t a disjoint set of services that happen to be working in parallel, it is a single unified product where they may not know the boundary lines, or at the very least the boundaries can be fuzzy for them.


Renat Akhmerov
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Donald Stufft
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