[openstack-dev] [jacket] Introduction to jacket, a new project

GHANSHYAM MANN ghanshyammann at gmail.com
Thu Mar 24 03:58:47 UTC 2016

Hi Kevin,

Its always nice idea as jacket has but not sure how feasible and
valuable it would be. For doing API translation and gateway, there are
many available and one I remember is Aviator (based on ruby gem) [1],
not sure how active it is now.

As your idea is more about consuming all differences between different
cloud, few query-

 1. Different clouds have very much different API model and feature
they provides, how  worth it is to provide missing/different features
at jacket layer? its then kind of another layer of cloud layer you
will end up.

 2. To support that idea through OpenStack standard API, you need to
inserting jacket driver all over the components which end up having
another layer gets inserted there. Maintainability of that is another
issue for each OpenStack components.

IMO, outside layer (from OpenStack ) which can do all these would be
nice something which can redirect API services at top level top and do
what all conversion, consume difference etc.

[1] https://github.com/aviator/aviator

Ghanshyam Mann

On Wed, Mar 16, 2016 at 9:58 PM, zs <okay22many at 163.com> wrote:
> Hi Gordon,
> Thank you for your suggestion.
> I think jacket is different from tricircle. Because tricircle focuses on
> OpenStack deployment across multiple sites, but jacket focuses on how to
> manage the different clouds just like one cloud.  There are some
> differences:
> 1. Account management and API model: Tricircle faces multiply OpenStack
> instances which can share one Keystone and have the same API model, but
> jacket will face the different clouds which have the respective service and
> different API model. For example, VMware vCloud Director has no volume
> management like OpenStack and AWS, jacket will offer a fake volume
> management for this kind of cloud.
> 2. Image management: One image just can run in one cloud, jacket need
> consider how to solve this problem.
> 3. Flavor management: Different clouds have different flavors which can not
> be operated by users. Jacket will face this problem but there will be no
> this problem in tricircle.
> 4. Legacy resources adoption: Because of the different API modles, it will
> be a huge challenge for jacket.
> I think it is maybe a good solution that jacket works to unify the API model
> for different clouds, and then using tricircle to offer the management of  a
> large scale VMs.
> Best Regards,
> Kevin (Sen Zhang)
> At 2016-03-16 19:51:33, "gordon chung" <gord at live.ca> wrote:
>>On 16/03/2016 4:03 AM, zs wrote:
>>> Hi all,
>>> There is a new project "jacket" to manage multiply clouds. The jacket
>>> wiki is: https://wiki.openstack.org/wiki/Jacket
>>>   Please review it and give your comments. Thanks.
>>> Best Regards,
>>> Kevin (Sen Zhang)
>>i don't know exact details of either project, but i suggest you
>>collaborate with tricircle project[1] because it seems you are
>>addressing the same user story (and in a very similar fashion). not sure
>>if it's a user story for OpenStack itself, but no point duplicating
>> efforts.
>>[1] https://wiki.openstack.org/wiki/Tricircle
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