[Buildbot-devel] getting buildslaves to exit after one build?

[Dan Kegel]

On Mon, Aug 27, 2012 at 10:01 PM, Tom Prince <tom.prince at ualberta.net> wrote:
>>          def _release_slave(res, slave, bs):
>>              self.slavebuilder.buildFinished()
>>              slave.updateSlaveStatus(buildFinished=bs)
>> +            if (slave.properties.getProperty('oneshot', False)):
>> +                log.msg("Shutting down oneshot slave!")
>> +                slave.shutdown()
>>              return res
>>          d.addCallback(_release_slave, self.slavebuilder.slave, build_status)
>
> Well, if that is all you need to shutdown the instance, then
>     def stop_instance(self, fast=False):
>         self.shutdown()
> would seem to do what you need (in a latent slave).

As I explained at the start of the thread, I think need to use plain old slaves.
Latent slaves run on the master, and use libvirt to set up slaves, but
libvirt's lxc support seems iffy.

I could hack something together based on abstract latent build slaves,
but my two-line hack seems sufficient.  Is there something particularly
bad about it?

In particular, what about the race listed in
http://trac.buildbot.net/ticket/1001
?
- Dan