Open Stack

I'm interested in how this relates/conflicts with the TripleO goal of using OpenStack to deploy OpenStack.

It looks like (maybe just superficially) that Kubernetes is simply a combination of (nova + docker driver) = container schedualer and (heat) = orchestration. They both schedule containers, will need advanced scheduling like "ensure these two containers are on different servers (nova ServerGroups), autoscale resources, hook up things together, have a json document that describes the desired state, etc... If that's the case, it seems odd to use an OpenStack competing product to deploy a competitor of Kubernetes. Two software stacks to learn how to debug rather then just one.

Maybe I'm just totally misunderstanding what Kubernetes is trying to accomplish though. I'm not trying to stur up trouble here. I just really want to understand how these two technologies fit together.

Thanks,
Kevin
________________________________
From: Steven Dake [sdake at redhat.com]
Sent: Tuesday, September 23, 2014 3:40 PM
To: OpenStack Development Mailing List
Subject: [openstack-dev] [all][tripleo] New Project -> Kolla: Deploy and Manage OpenStack using Kubernetes and Docker

Hi folks,

I'm pleased to announce the development of a new project Kolla which is Greek for glue :). Kolla has a goal of providing an implementation that deploys OpenStack using Kubernetes and Docker. This project will begin as a StackForge project separate from the TripleO/Deployment program code base. Our long term goal is to merge into the TripleO/Deployment program rather then create a new program.


Docker is a container technology for delivering hermetically sealed applications and has about 620 technical contributors [1]. We intend to produce docker images for a variety of platforms beginning with Fedora 20. We are completely open to any distro support, so if folks want to add new Linux distribution to Kolla please feel free to submit patches :)


Kubernetes at the most basic level is a Docker scheduler produced by and used within Google [2]. Kubernetes has in excess of 100 technical contributors. Kubernetes is more then just a scheduler, it provides additional functionality such as load balancing and scaling and has a significant roadmap.

The #tripleo channel on Freenode will be used for Kolla developer and user communication. Even though we plan to become part of the Deployment program long term, as we experiment we believe it is best to hold a separate weekly one hour IRC meeting on Mondays at 2000 UTC in #openstack-meeting [3].

This project has been discussed with the current TripleO PTL (Robert Collins) and he seemed very supportive and agreed with the organization of the project outlined above. James Slagle, a TripleO core developer, has kindly offered to liase between Kolla and the broader TripleO community.


I personally feel it is necessary to start from a nearly empty repository when kicking off a new project. As a result, there is limited code in the repository [4] at this time. I suspect folks will start cranking out a kick-ass implementation once the Kolla/Stackforge integration support is reviewed by the infra team [5].


The initial core team is composed of Steven Dake, Ryan Hallisey, James Lebocki, Jeff Peeler, James Slagle, Lars Kellogg-Sedman, and David Vossel. The core team will be reviewed every 6 weeks to add fresh developers.

Please join the core team in designing and inventing this rockin' new technology!

Regards
-steve

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


[1] https://github.com/docker/docker [2] https://github.com/GoogleCloudPlatform/kubernetes

[3] https://wiki.openstack.org/wiki/Meetings/Kolla [4] https://github.com/jlabocki/superhappyfunshow [5] https://review.openstack.org/#/c/122972/

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