'Constructor.
Args:
scenario: [SpinnakerTestScenario] The scenario being supported.'

def __init__(self, scenario):

    super(OpenStackScenarioSupport, self).__init__('openstack', scenario)
    bindings = scenario.bindings
    if (not bindings['OS_REGION_NAME']):
        bindings['OS_REGION_NAME'] = scenario.agent.deployed_config.get('providers.openstack.primaryCredentials.regions', None)
