[openstack-dev] [cinder][tc] Seeking feedback on the OpenStack cloud vision

Zane Bitter zbitter at redhat.com
Wed Oct 24 15:13:33 UTC 2018

Greetings, Cinder team!
As you may be aware, I've been working with other folks in the community 
on documenting a vision for OpenStack clouds (formerly known as the 
'Technical Vision') - essentially to interpret the mission statement in 
long-form, in a way that we can use to actually help guide decisions. 
You can read the latest draft here: https://review.openstack.org/592205

We're trying to get feedback from as many people as possible - in many 
ways the value is in the process of coming together to figure out what 
we're trying to achieve as a community with OpenStack and how we can 
work together to build it. The document is there to help us remember 
what we decided so we don't have to do it all again over and over.

The vision is structured with two sections that apply broadly to every 
project in OpenStack - describing the principles that we believe are 
essential to every cloud, and the ones that make OpenStack different 
from some other clouds. The third section is a list of design goals that 
we want OpenStack as a whole to be able to meet - ideally each project 
would be contributing toward one or more of these design goals.

Clearly Cinder is an integral part of meeting the 'Basic Physical Data 
Center Management' design goal, and also contributes to the 'Hardware 
Virtualisation' goal.

The last paragraph in the 'Plays Well With Others' goal, about providing 
a standalone backend abstraction layer independently of the higher-level 
API (that might include e.g. scheduling and integration with other 
OpenStack services) was added with Cinder in mind, as I know that this 
is something the Cinder community has discussed, and it might also be 
applicable to other projects. Of course this is by no means mandatory, 
but it might be an interesting are to continue exploring.

The Partitioning section highlights the known mismatch between the 
concept of Availability Zones as borrowed from other clouds and the way 
operators use OpenStack, and offers a long-term design direction that 
Cinder might want to pursue in conjunction with Nova.

If you would like me or another TC member to join one of your team IRC 
meetings to discuss further what the vision means for your team, please 
reply to this thread to set it up. You are also welcome to bring up any 
questions in the TC IRC channel, #openstack-tc - there's more of us 
around during Office Hours 
(https://governance.openstack.org/tc/#office-hours), but you can talk to 
us at any time.

Feedback can also happen either in this thread or on the review 

If the team is generally happy with the vision as it is and doesn't have 
any specific feedback, that's cool but I'd like to request that at least 
the PTL leave a vote on the review. It's important to know whether we 
are actually developing a consensus in the community or just talking to 
ourselves :)

many thanks,

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