We just added GCE builders to the chromiumos waterfall for the first time, and puppet doesn't seem to be configuring them correctly.

An example failure:

cbuildbot: Unhandled exception:
Traceback (most recent call last):
  File "/b/build/slave/arm-generic-paladin-master/build/chromite/bin/cbuildbot", line 168, in <module>
    DoMain()
  File "/b/build/slave/arm-generic-paladin-master/build/chromite/bin/cbuildbot", line 164, in DoMain
    commandline.ScriptWrapperMain(FindTarget)
  File "/b/build/slave/arm-generic-paladin-master/build/chromite/lib/commandline.py", line 834, in ScriptWrapperMain
    ret = target(argv[1:])
  File "/b/build/slave/arm-generic-paladin-master/build/chromite/scripts/cbuildbot.py", line 1317, in main
    logging.info('One stage exited early: %s', ex)
  File "/b/build/slave/arm-generic-paladin-master/build/chromite/scripts/cbuildbot.py", line 1279, in main
    stack.Add(_SetupConnections, options, build_config)
  File "/b/build/slave/arm-generic-paladin-master/build/chromite/lib/cros_build_lib.py", line 1247, in Add
    obj = functor(*args, **kwargs)
  File "/b/build/slave/arm-generic-paladin-master/build/chromite/scripts/cbuildbot.py", line 1047, in _SetupConnections
    db = cidb.CIDBConnectionFactory.GetCIDBConnectionForBuilder()
  File "/b/build/slave/arm-generic-paladin-master/build/chromite/lib/cidb.py", line 1598, in GetCIDBConnectionForBuilder
    return self.GetInstance()
  File "/b/build/slave/arm-generic-paladin-master/build/chromite/lib/factory.py", line 103, in GetInstance
    return self._types[self.setup_type]()
  File "/b/build/slave/arm-generic-paladin-master/build/chromite/lib/factory.py", line 119, in wrapper
    cached_value.append(function())
  File "/b/build/slave/arm-generic-paladin-master/build/chromite/lib/cidb.py", line 1490, in <lambda>
    lambda: CIDBConnection(constants.CIDB_PROD_BOT_CREDS)),
  File "/b/build/slave/arm-generic-paladin-master/build/chromite/lib/cidb.py", line 616, in __init__
    db_credentials_dir, *args, **kwargs)
  File "/b/build/slave/arm-generic-paladin-master/build/chromite/lib/cidb.py", line 242, in __init__
    listeners=[self._listener_class()])
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/__init__.py", line 332, in create_engine
    return strategy.create(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/engine/strategies.py", line 64, in create
    dbapi = dialect_cls.dbapi(**dbapi_args)
  File "/usr/lib/python2.7/dist-packages/sqlalchemy/connectors/mysqldb.py", line 57, in dbapi
    return __import__('MySQLdb')
ImportError: No module named MySQLdb
@@@STEP_CURSOR@cbuildbot [arm-generic-paladin]@@@
step returned non-zero exit code: 1
@@@STEP_FAILURE@@@