[Pacemaker] #kind eq container matches bare-metal nodes

Vladislav Bogdanov bubble at hoster-ok.com
Tue Oct 21 02:38:46 EDT 2014


21.10.2014 06:25, Vladislav Bogdanov wrote:
> 21.10.2014 05:15, Andrew Beekhof wrote:
>>
>>> On 20 Oct 2014, at 8:52 pm, Vladislav Bogdanov <bubble at hoster-ok.com> wrote:
>>>
>>> Hi Andrew, David, all,
>>>
>>> It seems like #kind was introduced before bare-metal remote node
>>> support, and now it is matched against "cluster" and "container".
>>> Bare-metal remote nodes match "container" (they are remote), but
>>> strictly speaking they are not containers.
>>> Could/should that attribute be extended to the bare-metal use case?
>>
>> Unclear, the intent was 'nodes that aren't really cluster nodes'.
>> Whats the usecase for wanting to tell them apart? (I can think of some, just want to hear yours)
> 
> I want VM resources to be placed only on bare-metal remote nodes.
> -inf: #kind ne container looks a little bit strange.
> #kind ne remote would be more descriptive (having now them listed in CIB
> with 'remote' type).

One more case (which is what I'd like to use in the mid-future) is a
mixed remote-node environment, where VMs run on bare-metal remote nodes
using storage from cluster nodes (f.e. sheepdog), and some of that VMs
are whitebox containers themselves (they run services controlled by
pacemaker via pacemaker_remoted). Having constraint '-inf: #kind ne
container' is not enough to not try to run VMs inside of VMs - both
bare-metal remote nodes and whitebox containers match 'container'.

> 
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> 
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