[node-devel] Rethinking implementation for oVirt Node Plugins

[Perry Myers]

On 01/27/2012 05:35 AM, Alan Pevec wrote:
>> The original reasons for excluding yum were:
>> * No python on the node (but vdsm pulled python in, so that's moot now)
>> * Don't want folks running yum on a live oVirt Node image (we can
>>  address that by making yum impossible to run when the image is booted
>>  vs. offline)
> 
> Good idea, also running oVirt Node has read-only rootfs, so any update
> attempt would fail.
> And for a graceful failure, we could have a yum plugin which aborts
> transaction if it detects running Node, with a user-friendly message.

good idea re: plugin

>> If we put yum on the node, then plugin installation could be as simple as:
>> mount ISO
>> cp foo.repo /etc/yum.conf.d/
>> yum install foo --enablerepo=foo
> 
> Of course, you still need edit-livecd around this, which will handle
> setting up chroot and repackaging updated rootfs back into ISO.

yes, I sort of put that all into the magic of "mount iso"  :)