def initialize(self, component_names):
""" Initializes this client for working with the components given. """
# Load the project configuration.
self.getConfig()
# Initialize the runtime manager.
self.runtime_manager = RuntimeManager(self.config)
# Find all the components for this machine.
for component_name in component_names:
component = self.runtime_manager.getComponent(component_name)
if not component:
fail('Unknown component named ' + component_name,
project=self.project_name)
self.components.append(component)
def run():
# Setup the gantry arguments
parser = argparse.ArgumentParser(
description='gantry continuous deployment system')
parser.add_argument('config_file', help='The configuration file')
parser.add_argument('action',
help='The action to perform',
choices=ACTIONS.keys())
parser.add_argument('component_name',
help='The name of the component to manage')
parser.add_argument(
'-m',
dest='monitor',
action='store_true',
help=
'If specified and the action is "start" or "update", gantry will remain running to monitor components, auto restarting them as necessary'
)
parser.add_argument('--setconfig',
dest='config_overrides',
action='append',
help='Configuration overrides for the component')
args = parser.parse_args()
component_name = args.component_name
action = args.action
should_monitor = args.monitor
config_file = args.config_file
config_overrides = args.config_overrides
# Load the config.
config = loadConfig(config_file)
if not config:
return
# Create the manager.
manager = RuntimeManager(config)
# Find the component
component = manager.getComponent(component_name)
if not component:
raise Exception('Unknown component: ' + component_name)
# Apply the config overrides (if any).
if config_overrides:
component.applyConfigOverrides(config_overrides)
# Run the action with the component and config.
result = ACTIONS[action](component)
if result and should_monitor:
try:
report('Starting monitoring of component: ' + component_name)
monitor(component)
except KeyboardInterrupt:
report('Terminating monitoring of component: ' + component_name)
def cleanup_monitor(signum, frame):
manager.join()
# Set the signal handler and a 5-second alarm
signal.signal(signal.SIGINT, cleanup_monitor)
# We may have to call cleanup manually if we weren't asked to monitor
cleanup_monitor(None, None)
