Fedora Atomic and Docker Host Image [was Re: Docker Host Image: Requirements?]

Colin Walters walters at verbum.org
Tue Mar 11 01:35:48 UTC 2014

On Mon, Mar 10, 2014 at 8:26 PM, Steven Dake <sdake at redhat.com> wrote:

I would say that there are many valid ways to provision and manage 
machines, of which Heat/CloudFormation is one.  min-metadata-service 
does exactly what it needs to do to provide the fundamental basis for 
secure remote access to the machine, and with
the guest will also be able to reach out and register on bootup 
(perhaps by first pulling a docker container), which is all one needs 
to implement higher order management tools.

And there implementation will stop =)

But I'd agree with you (and others have expressed this sentiment) that 
we should be conservative with backing away from cloud-init in the near 

At least for Fedora Cloud.  That said, I am trying to create momentum 
for a smaller but still useful core, ideally written in lovingly hand 
crafted C code, with languages like Python and Ruby still *available*.

> I am a bit confused at the scope because min-metadata-server was 
> mentioned early on, but is unnecessary if the target of this OS is to 
> only run on hosts.

Running as a guest is definitely in scope.

> Ideally a python run time would still be available to run 
> virtualization 
> platforms like OpenStack. 

Sure, of course.  No one is talking about making python unavailable.  
Just possibly not installed by default in all builds.

>  Such a bare-bones operating system would make 
> alot of sense, but I've copied a TripleO upstream developer (James) 
> for 
> his thoughts on atomic + ostree and its relationship to how TripleO 
> handles continuous deployment through imaging.
I'm certainly interested in the discussion!  OSTree was made from the 
very start to do continuous deployment - at the moment with rpm-ostree 
I am restricting myself to merely accepting RPMs as input, so no 
continuous integration.  But gnome-continuous is a custom build system 
that takes git repositories and writes to the OSTree repository 
directly (with no intermediate package step).

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