How can I assign a forced build to a particular build slave?

Question

I have a builder to which several build slaves are assigned since the machines are roughly homogeneous. I have a force scheduler setup on this builder as well. Sometimes, I would like to force the build to run on a particular build slave. Is this possible?

E.g., can I use the name and value fields of the force build form on the builder's status page?

Answer 1

use BuildSlaveChoiceParameter() in your force build scheduler inside of master.cfg.

Below is an example from the docs at http://docs.buildbot.net/0.8.12/manual/cfg-schedulers.html#buildslavechoiceparameter

from buildbot.plugins import util

# schedulers:
ForceScheduler(
    # ...
    properties=[
        BuildslaveChoiceParameter(),
    ]
)

# builders:
BuilderConfig(
    # ...
    canStartBuild=util.enforceChosenSlave,
)

This gives you a pulldown on the web interface which has the slaves assigned to this scheduler as choices.