[openstack-dev] [puppet][Fuel] Using Native Ruby Client for Openstack Providers

Vladimir Kuklin vkuklin at mirantis.com
Tue Oct 13 13:13:22 UTC 2015

Puppetmaster and Fuelers,

Last week I mentioned that I would like to bring the theme of using native
ruby OpenStack client and use it within the providers.

Emilien told me that I had already been late and the decision was made that
puppet-openstack decided to not work with Aviator based on [0]. I went
through this thread and did not find any unresolvable issues with using
Aviator in comparison with potential benefits it could have brought up.

What I saw actually was like that:

* Pros

1) It is a native ruby client
2) We can import it in puppet and use all the power of Ruby
3) We will not need to have a lot of forks/execs for puppet
4) You are relying on negotiated and structured output provided by API
(JSON) instead of introducing workarounds for client output like [1]

* Cons

1) Aviator is not actively supported
2) Aviator does not track all the upstream OpenStack features while native
OpenStack client does support them
3) Ruby community is not really interested in OpenStack (this one is
arguable, I think)

* Proposed solution

While I completely understand all the cons against using Aviator right now,
I see that Pros above are essential enough to change our mind and invest
our own resources into creating really good OpenStack binding in Ruby.
Some are saying that there is not so big involvement of Ruby into
OpenStack. But we are actually working with Puppet/Ruby and are invloved
into community. So why should not we own this by ourselves and lead by
example here?

I understand that many of you do already have a lot of things on their
plate and cannot or would not want to support things like additional
library when native OpenStack client is working reasonably well for you.
But if I propose the following scheme to get support of native Ruby client
for OpenStack:

1) we (community) have these resources (speaking of the company I am
working for, we at Mirantis have a set of guys who could be very interested
in working on Ruby client for OpenStack)
2) we gradually improve Aviator code base up to the level that it
eliminates issues that are mentioned in  'Cons' section
3) we introduce additional set of providers and allow users and operators
to pick whichever they want
4) we leave OpenStackClient default one

Would you support it and allow such code to be merged into upstream
puppet-openstack modules?

Yours Faithfully,
Vladimir Kuklin,
Fuel Library Tech Lead,
Mirantis, Inc.
+7 (495) 640-49-04
+7 (926) 702-39-68
Skype kuklinvv
35bk3, Vorontsovskaya Str.
Moscow, Russia,
www.mirantis.com <http://www.mirantis.ru/>
vkuklin at mirantis.com
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