[Buildbot-devel] A tool for using Buildbot with KVM virtual machines

[Kristian Nielsen]

Dustin Sallings <dustin at spy.net> writes:

> On Jan 18, 2010, at 6:00, Kristian Nielsen wrote:
>
>>    f.addStep(Compile(command=["runvm", "vm-image.qcow2", """
>>    cvs checkout myproject
>>    cd myproject
>>    ./configure
>>    make
>>    """]))
>
>
> 	Would you consider turning this into a latent slave?
>
> <http://djmitche.github.com/buildbot/docs/0.7.12/#On_002dDemand-_0028_0022Latent_0022_0029-Buildslaves>

Yes, might be an idea.

It should actually be really simple.

In start_instance(), spawn a process "runvm <extra_args> <image> "read dummy".

In stop_instance(), close the stdin of started process, and wait for other end
to close its stdout.

I just need to read up on how to manage spawned processes in Twisted (and
Python). Will try to give it a go.

Could be a nice second example of a Latent build slave, and might be useful
for someone.

 - Kristian.