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

Steven Dake sdake at redhat.com
Tue Mar 11 00:26:27 UTC 2014

On 03/10/2014 04:32 PM, Sandro "red" Mathys wrote:
> Just noticed that removing Python would obviously also mean no
> heat-cfntools. Do we want to accept that (if we go with remove-python
> at all)?
> Starting to wonder a bit how users are supposed to use Docker. What
> other mechanisms do we have to actually run a container with Docker
> once the image is deployed?

removing cloud-init, heat-cfntools, and the new TripleO related tools 
os-collect-config, os-apply-config and os-refresh-config may make sense 
for a *host* operating system, which I believe Atomic is targeting.

If these are removed from a guest operating system, the guest won't be 
able to function with TripleO, Heat, or anyone that depends on 
cloud-init.  Removing cloud-init support effectively kills any 
motivation for AWS adoption of a guest operating system that we may produce.

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.

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


> On Mon, Mar 10, 2014 at 8:21 AM, Colin Walters <walters at verbum.org> wrote:
>> - How does one activate the deployed product if extlinux is the active
>> bootloader? The website has only instructions for GRUB (bls_import, etc).
>> Ah, you probably hit this:
>> https://bugzilla.gnome.org/show_bug.cgi?id=726007
> Probably this, will try a workaround later. Thanks.
>> This is also related:
>> https://bugzilla.gnome.org/show_bug.cgi?id=722845
>> Basically to make ostree drive extlinux, the layout needs to look like this:
>> https://github.com/cgwalters/rpm-ostree/blob/master/src/autobuilder/js/libqa.js#L359
>> - How does one get rid of the 'traditional Fedora' once the product is
>> active?
>> Maybe something like:
>> rpm -qal | while read line; do rm $line || rmdir $line; done
>> rpm -qal | while read line; do rm $line || rmdir $line; done
> I'm pretty sure that's not a good way to go. Not sure if there's any
> much better. We'll see once I had time to play around some more.
>> ...figure both won't be necessary anymore once we can use Anaconda to
>> install a product directly, but in the meantime it would be helpful for some
>> testing and more generally help my understanding. :)
>> Yep, Anaconda support will fix both.
> Great, looking forward to that.
> -- Sandro
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