def start_nodes(self):
""" invoke cloudinitd to start nodes """
if self.state!=CONFIGURED:
raise ApeException('cannot start nodes when troop state is ' + self.state)
chdir(self.target_directory)
try:
cloudinitd(argv=['boot', 'troop-launch.conf', '-n', self.launch_name])
self.state=RUNNING
except:
self.state=FAILED
def stop_nodes(self):
""" invoke cloudinitd to stop all nodes """
if self.state!=RUNNING and self.state!=FAILED:
raise ApeException('cannot stop nodes when troop state is ' + self.state)
chdir(self.target_directory)
cloudinitd(argv=['terminate', self.launch_name])