def __init__(self, component, project_name, machine_id, etcd_client):
self.component = component
self.project_name = project_name
self.machine_id = machine_id
self.is_running = False
# Logging.
self.logger = logging.getLogger(__name__)
# Setup the state helper for the component.
self.state = ComponentState(project_name, component, etcd_client)
# Setup the watcher thread.
self.watcher_thread = threading.Thread(target=self.waitForCommand,
args=[])
self.watcher_thread.daemon = True
# Setup the monitor thread.
self.monitor_thread = threading.Thread(target=self.monitorComponent,
args=[])
self.monitor_thread.daemon = True
# Setup an event to ping the monitor thread when it should restart checking in
# on the component.
self.monitor_event = threading.Event()
# Setup a lock to prevent multiple threads from trying to (re)start a container.
self.update_lock = threading.Lock()
def killComponents(self, componentNames):
""" Tells all the given components on all systems to die. """
self.initialize(componentNames)
report('Marking components as killed', project = self.project_name)
for component in self.components:
report('Marking component as killed', project = self.project_name, component = component,
level = ReportLevels.EXTRA)
state = ComponentState(self.project_name, component, self.etcd_client)
state.setStatus(KILLED_STATUS)
def listStatus(self):
""" Lists the status of all components in this project. """
self.getConfig()
self.initialize([c.name for c in self.config.components])
print "%-20s %-20s %-20s" % ('COMPONENT', 'STATUS', 'IMAGE ID')
for component in self.components:
state = ComponentState(self.project_name, component, self.etcd_client).getState()
status = ComponentState.getStatusOf(state)
imageid = ComponentState.getImageIdOf(state)
print "%-20s %-20s %-20s" % (component.getName(), status, imageid)
def markUpdated(self, componentNames):
""" Tells all the given components to update themselves. """
self.initialize(componentNames)
report('Updating the image IDs on components', project = self.project_name)
for component in self.components:
image_id = component.getImageId()
state = ComponentState(self.project_name, component, self.etcd_client)
report('Component ' + component.getName() + ' -> ' + image_id[0:12], project = self.project_name,
component = component)
state.setReadyStatus(image_id)
def listStatus(self):
""" Lists the status of all components in this project. """
self.getConfig()
self.initialize([c.name for c in self.config.components])
print "%-20s %-20s %-20s" % ('COMPONENT', 'STATUS', 'IMAGE ID')
for component in self.components:
state = ComponentState(self.project_name, component,
self.etcd_client).getState()
status = ComponentState.getStatusOf(state)
imageid = ComponentState.getImageIdOf(state)
print "%-20s %-20s %-20s" % (component.getName(), status, imageid)
def stopComponents(self, component_names):
""" Tells all the given components on all systems to stop. """
self.initialize(component_names)
report('Marking components as stopped', project=self.project_name)
for component in self.components:
report('Marking component as stopped',
project=self.project_name,
component=component,
level=ReportLevels.EXTRA)
state = ComponentState(self.project_name, component,
self.etcd_client)
state.setStatus(STOPPED_STATUS)
def markUpdated(self, component_names):
""" Tells all the given components to update themselves. """
self.initialize(component_names)
report('Updating the image IDs on components',
project=self.project_name)
for component in self.components:
image_id = component.getImageId()
state = ComponentState(self.project_name, component,
self.etcd_client)
report('Component %s->%s' % (component.getName(), image_id[0:12]),
project=self.project_name,
component=component)
state.setReadyStatus(image_id)
def waitForCommand(self):
""" Waits for an command notification on the component in etcd. If one is received,
processes it by attempting to update the component.
"""
is_initial_loop = True
sleep_time = 0
while True:
# Sleep and then check again.
time.sleep(sleep_time)
sleep_time = CHECK_SLEEP_TIME
# Check the component's status.
self.logger.debug('Checking state for component %s',
self.component.getName())
state = self.state.getState()
self.logger.debug('Found state %s for component %s', state,
self.component.getName())
# Determine whether we should give initial status messages.
was_initial_loop = is_initial_loop
is_initial_loop = False
# Take actions based on the status requested.
current_status = ComponentState.getStatusOf(state)
sleep_time = self.handleStatus(current_status, state,
was_initial_loop)
def __init__(self, component, project_name, machine_id, etcd_client):
self.component = component
self.project_name = project_name
self.machine_id = machine_id
self.is_running = False
# Logging.
self.logger = logging.getLogger(__name__)
# Setup the state helper for the component.
self.state = ComponentState(project_name, component, etcd_client)
# Setup the watcher thread.
self.watcher_thread = threading.Thread(target=self.waitForCommand, args=[])
self.watcher_thread.daemon = True
# Setup the monitor thread.
self.monitor_thread = threading.Thread(target=self.monitorComponent, args=[])
self.monitor_thread.daemon = True
# Setup an event to ping the monitor thread when it should restart checking in
# on the component.
self.monitor_event = threading.Event()
# Setup a lock to prevent multiple threads from trying to (re)start a container.
self.update_lock = threading.Lock()
def monitorComponent(self):
""" Monitors a component by pinging it every MONITOR_SLEEP_TIME seconds or so. If a component
fails, then the system will try to restart it. If that fails, the component is marked
as dead.
"""
while True:
# Wait for the component to be running.
self.monitor_event.wait()
# Sleep MONITOR_SLEEP_TIME seconds.
time.sleep(MONITOR_SLEEP_TIME)
# Check the component.
report(
"Checking in on component",
project=self.project_name,
component=self.component,
level=ReportLevels.BACKGROUND,
)
if not self.component.isHealthy():
self.logger.debug("Component %s is not healty", self.component.getName())
with self.update_lock:
# Just to be sure...
if not self.is_running:
continue
# Ensure that the component is still ready.
state = self.state.getState()
current_status = ComponentState.getStatusOf(state)
if current_status == READY_STATUS:
report(
"Component " + self.component.getName() + " is not healthy. Restarting...",
project=self.project_name,
component=self.component,
)
if not self.component.update():
report(
"Could not restart component " + self.component.getName(),
project=self.project_name,
component=self.component,
level=ReportLevels.IMPORTANT,
)
self.monitor_event.clear()
continue
def monitorComponent(self):
""" Monitors a component by pinging it every MONITOR_SLEEP_TIME seconds or so. If a component
fails, then the system will try to restart it. If that fails, the component is marked
as dead.
"""
while True:
# Wait for the component to be running.
self.monitor_event.wait()
# Sleep MONITOR_SLEEP_TIME seconds.
time.sleep(MONITOR_SLEEP_TIME)
# Check the component.
report('Checking in on component',
project=self.project_name,
component=self.component,
level=ReportLevels.BACKGROUND)
if not self.component.isHealthy():
self.logger.debug('Component %s is not healty',
self.component.getName())
with self.update_lock:
# Just to be sure...
if not self.is_running:
continue
# Ensure that the component is still ready.
state = self.state.getState()
current_status = ComponentState.getStatusOf(state)
if current_status == READY_STATUS:
report('Component ' + self.component.getName() +
' is not healthy. Restarting...',
project=self.project_name,
component=self.component)
if not self.component.update():
report('Could not restart component ' +
self.component.getName(),
project=self.project_name,
component=self.component,
level=ReportLevels.IMPORTANT)
self.monitor_event.clear()
continue
def waitForCommand(self):
""" Waits for an command notification on the component in etcd. If one is received,
processes it by attempting to update the component.
"""
is_initial_loop = True
sleep_time = 0
while True:
# Sleep and then check again.
time.sleep(sleep_time)
sleep_time = CHECK_SLEEP_TIME
# Check the component's status.
self.logger.debug('Checking state for component %s', self.component.getName())
state = self.state.getState()
self.logger.debug('Found state %s for component %s', state, self.component.getName())
# Determine whether we should give initial status messages.
was_initial_loop = is_initial_loop
is_initial_loop = False
# Take actions based on the status requested.
current_status = ComponentState.getStatusOf(state)
sleep_time = self.handleStatus(current_status, state, was_initial_loop)
def handleReady(self, state, was_initial_check):
""" Handles when the component has been marked as ready. """
# If the status is ready, we update the component if:
# - The ID of the component's image does not match that found in the status.
# - The process is not running.
imageid = ComponentState.getImageIdOf(state)
imageid_different = imageid != self.component.getImageId()
should_update = not self.is_running or imageid_different
if should_update:
self.is_running = False
self.monitor_event.clear()
# We need to update this machine's copy. First, do a test and set to ensure that
# we are the only machine allowed to update. If the test and set fails, we'll
# try again in 10s.
if imageid_different:
report('Detected pushed update for component ' +
self.component.getName(),
project=self.project_name,
component=self.component)
else:
report('Component %s is not running; starting' %
self.component.getName(),
project=self.project_name,
component=self.component)
result = self.state.setUpdatingStatus('updating', self.machine_id,
state)
if not result:
# The exchange failed. Sleep CHECK_SHORT_SLEEP_TIME seconds and try again.
report(
'Could not grab update lock. Will try again in %s seconds'
% CHECK_SHORT_SLEEP_TIME,
project=self.project_name,
component=self.component)
return CHECK_SHORT_SLEEP_TIME
# Start the update by pulling the repo for the component.
if imageid_different:
report('Pulling the image for component ' +
self.component.getName())
if not self.component.pullRepo():
# The pull failed.
report('Pull failed of image %s for component %s' %
(imageid[0:12], self.component.getName()),
project=self.project_name,
component=self.component,
level=ReportLevels.IMPORTANT)
self.state.setUpdatingStatus('pullfail', self.machine_id,
result)
return CHECK_SLEEP_TIME
# Run the update on the component and wait for it to finish.
if imageid_different:
report('Starting update for component ' +
self.component.getName(),
project=self.project_name,
component=self.component)
if not self.component.update():
# The update failed.
self.state.setUpdatingStatus('updatefail', self.machine_id,
result)
return CHECK_SLEEP_TIME
# Otherwise, the update has succeeded. Mark the component as ready, so another
# gantryd can start its update.
if imageid_different:
report('Update completed for component ' +
self.component.getName(),
project=self.project_name,
component=self.component)
else:
report('Component ' + self.component.getName() +
' is now running',
project=self.project_name,
component=self.component)
self.state.setReadyStatus(self.component.getImageId())
self.is_running = True
self.monitor_event.set()
return CHECK_SLEEP_TIME
class ComponentWatcher(object):
""" Helper class which watches a specific component's status in etcd and
manages the update/stop/kill process (if necessary). Also watches the
component itself once started, and ensures that it remains running (restarting
it if it failed).
"""
def __init__(self, component, project_name, machine_id, etcd_client):
self.component = component
self.project_name = project_name
self.machine_id = machine_id
self.is_running = False
# Logging.
self.logger = logging.getLogger(__name__)
# Setup the state helper for the component.
self.state = ComponentState(project_name, component, etcd_client)
# Setup the watcher thread.
self.watcher_thread = threading.Thread(target=self.waitForCommand,
args=[])
self.watcher_thread.daemon = True
# Setup the monitor thread.
self.monitor_thread = threading.Thread(target=self.monitorComponent,
args=[])
self.monitor_thread.daemon = True
# Setup an event to ping the monitor thread when it should restart checking in
# on the component.
self.monitor_event = threading.Event()
# Setup a lock to prevent multiple threads from trying to (re)start a container.
self.update_lock = threading.Lock()
def start(self):
""" Starts the watcher. """
self.watcher_thread.start()
self.monitor_thread.start()
def monitorComponent(self):
""" Monitors a component by pinging it every MONITOR_SLEEP_TIME seconds or so. If a component
fails, then the system will try to restart it. If that fails, the component is marked
as dead.
"""
while True:
# Wait for the component to be running.
self.monitor_event.wait()
# Sleep MONITOR_SLEEP_TIME seconds.
time.sleep(MONITOR_SLEEP_TIME)
# Check the component.
report('Checking in on component',
project=self.project_name,
component=self.component,
level=ReportLevels.BACKGROUND)
if not self.component.isHealthy():
self.logger.debug('Component %s is not healty',
self.component.getName())
with self.update_lock:
# Just to be sure...
if not self.is_running:
continue
# Ensure that the component is still ready.
state = self.state.getState()
current_status = ComponentState.getStatusOf(state)
if current_status == READY_STATUS:
report('Component ' + self.component.getName() +
' is not healthy. Restarting...',
project=self.project_name,
component=self.component)
if not self.component.update():
report('Could not restart component ' +
self.component.getName(),
project=self.project_name,
component=self.component,
level=ReportLevels.IMPORTANT)
self.monitor_event.clear()
continue
def waitForCommand(self):
""" Waits for an command notification on the component in etcd. If one is received,
processes it by attempting to update the component.
"""
is_initial_loop = True
sleep_time = 0
while True:
# Sleep and then check again.
time.sleep(sleep_time)
sleep_time = CHECK_SLEEP_TIME
# Check the component's status.
self.logger.debug('Checking state for component %s',
self.component.getName())
state = self.state.getState()
self.logger.debug('Found state %s for component %s', state,
self.component.getName())
# Determine whether we should give initial status messages.
was_initial_loop = is_initial_loop
is_initial_loop = False
# Take actions based on the status requested.
current_status = ComponentState.getStatusOf(state)
sleep_time = self.handleStatus(current_status, state,
was_initial_loop)
def handleStatus(self, current_status, state, was_initial_check):
""" Handles the various status states for the component, returning the
amount of time after which to retry lookup up the state or -1 for
terminated.
"""
if current_status == STOPPED_STATUS:
return self.handleStopped(was_initial_check)
elif current_status == KILLED_STATUS:
return self.handleKilled(was_initial_check)
elif current_status == READY_STATUS:
with self.update_lock:
return self.handleReady(state, was_initial_check)
return CHECK_SLEEP_TIME
def handleStopped(self, was_initial_check):
""" Handles when the component has been marked to be stopped. """
self.monitor_event.clear()
if was_initial_check:
report('Component %s is marked as stopped' %
self.component.getName(),
project=self.project_name,
component=self.component)
self.is_running = False
self.component.stop(kill=False)
return CHECK_SLEEP_TIME
def handleKilled(self, was_initial_check):
""" Handles when the component has been marked to be killed. """
self.monitor_event.clear()
if was_initial_check:
report('Component %s is marked as killed' %
self.component.getName(),
project=self.project_name,
component=self.component)
self.is_running = False
self.component.stop(kill=True)
return CHECK_SLEEP_TIME
def handleReady(self, state, was_initial_check):
""" Handles when the component has been marked as ready. """
# If the status is ready, we update the component if:
# - The ID of the component's image does not match that found in the status.
# - The process is not running.
imageid = ComponentState.getImageIdOf(state)
imageid_different = imageid != self.component.getImageId()
should_update = not self.is_running or imageid_different
if should_update:
self.is_running = False
self.monitor_event.clear()
# We need to update this machine's copy. First, do a test and set to ensure that
# we are the only machine allowed to update. If the test and set fails, we'll
# try again in 10s.
if imageid_different:
report('Detected pushed update for component ' +
self.component.getName(),
project=self.project_name,
component=self.component)
else:
report('Component %s is not running; starting' %
self.component.getName(),
project=self.project_name,
component=self.component)
result = self.state.setUpdatingStatus('updating', self.machine_id,
state)
if not result:
# The exchange failed. Sleep CHECK_SHORT_SLEEP_TIME seconds and try again.
report(
'Could not grab update lock. Will try again in %s seconds'
% CHECK_SHORT_SLEEP_TIME,
project=self.project_name,
component=self.component)
return CHECK_SHORT_SLEEP_TIME
# Start the update by pulling the repo for the component.
if imageid_different:
report('Pulling the image for component ' +
self.component.getName())
if not self.component.pullRepo():
# The pull failed.
report('Pull failed of image %s for component %s' %
(imageid[0:12], self.component.getName()),
project=self.project_name,
component=self.component,
level=ReportLevels.IMPORTANT)
self.state.setUpdatingStatus('pullfail', self.machine_id,
result)
return CHECK_SLEEP_TIME
# Run the update on the component and wait for it to finish.
if imageid_different:
report('Starting update for component ' +
self.component.getName(),
project=self.project_name,
component=self.component)
if not self.component.update():
# The update failed.
self.state.setUpdatingStatus('updatefail', self.machine_id,
result)
return CHECK_SLEEP_TIME
# Otherwise, the update has succeeded. Mark the component as ready, so another
# gantryd can start its update.
if imageid_different:
report('Update completed for component ' +
self.component.getName(),
project=self.project_name,
component=self.component)
else:
report('Component ' + self.component.getName() +
' is now running',
project=self.project_name,
component=self.component)
self.state.setReadyStatus(self.component.getImageId())
self.is_running = True
self.monitor_event.set()
return CHECK_SLEEP_TIME
def handleReady(self, state, was_initial_check):
""" Handles when the component has been marked as ready. """
# If the status is ready, we update the component if:
# - The ID of the component's image does not match that found in the status.
# - The process is not running.
imageid = ComponentState.getImageIdOf(state)
imageid_different = imageid != self.component.getImageId()
should_update = not self.is_running or imageid_different
if should_update:
self.is_running = False
self.monitor_event.clear()
# We need to update this machine's copy. First, do a test and set to ensure that
# we are the only machine allowed to update. If the test and set fails, we'll
# try again in 10s.
if imageid_different:
report('Detected pushed update for component ' + self.component.getName(),
project=self.project_name, component=self.component)
else:
report('Component %s is not running; starting' % self.component.getName(),
project=self.project_name, component=self.component)
result = self.state.setUpdatingStatus('updating', self.machine_id, state)
if not result:
# The exchange failed. Sleep CHECK_SHORT_SLEEP_TIME seconds and try again.
report('Could not grab update lock. Will try again in %s seconds' % CHECK_SHORT_SLEEP_TIME,
project=self.project_name, component=self.component)
return CHECK_SHORT_SLEEP_TIME
# Start the update by pulling the repo for the component.
if imageid_different:
report('Pulling the image for component ' + self.component.getName())
if not self.component.pullRepo():
# The pull failed.
report('Pull failed of image %s for component %s' % (imageid[0:12],
self.component.getName()),
project=self.project_name, component=self.component, level=ReportLevels.IMPORTANT)
self.state.setUpdatingStatus('pullfail', self.machine_id, result)
return CHECK_SLEEP_TIME
# Run the update on the component and wait for it to finish.
if imageid_different:
report('Starting update for component ' + self.component.getName(),
project=self.project_name, component=self.component)
if not self.component.update():
# The update failed.
self.state.setUpdatingStatus('updatefail', self.machine_id, result)
return CHECK_SLEEP_TIME
# Otherwise, the update has succeeded. Mark the component as ready, so another
# gantryd can start its update.
if imageid_different:
report('Update completed for component ' + self.component.getName(),
project=self.project_name, component=self.component)
else:
report('Component ' + self.component.getName() + ' is now running',
project=self.project_name, component=self.component)
self.state.setReadyStatus(self.component.getImageId())
self.is_running = True
self.monitor_event.set()
return CHECK_SLEEP_TIME
class ComponentWatcher(object):
""" Helper class which watches a specific component's status in etcd and
manages the update/stop/kill process (if necessary). Also watches the
component itself once started, and ensures that it remains running (restarting
it if it failed).
"""
def __init__(self, component, project_name, machine_id, etcd_client):
self.component = component
self.project_name = project_name
self.machine_id = machine_id
self.is_running = False
# Logging.
self.logger = logging.getLogger(__name__)
# Setup the state helper for the component.
self.state = ComponentState(project_name, component, etcd_client)
# Setup the watcher thread.
self.watcher_thread = threading.Thread(target=self.waitForCommand, args=[])
self.watcher_thread.daemon = True
# Setup the monitor thread.
self.monitor_thread = threading.Thread(target=self.monitorComponent, args=[])
self.monitor_thread.daemon = True
# Setup an event to ping the monitor thread when it should restart checking in
# on the component.
self.monitor_event = threading.Event()
# Setup a lock to prevent multiple threads from trying to (re)start a container.
self.update_lock = threading.Lock()
def start(self):
""" Starts the watcher. """
self.watcher_thread.start()
self.monitor_thread.start()
def monitorComponent(self):
""" Monitors a component by pinging it every MONITOR_SLEEP_TIME seconds or so. If a component
fails, then the system will try to restart it. If that fails, the component is marked
as dead.
"""
while True:
# Wait for the component to be running.
self.monitor_event.wait()
# Sleep MONITOR_SLEEP_TIME seconds.
time.sleep(MONITOR_SLEEP_TIME)
# Check the component.
report('Checking in on component', project=self.project_name, component=self.component,
level=ReportLevels.BACKGROUND)
if not self.component.isHealthy():
self.logger.debug('Component %s is not healty', self.component.getName())
with self.update_lock:
# Just to be sure...
if not self.is_running:
continue
# Ensure that the component is still ready.
state = self.state.getState()
current_status = ComponentState.getStatusOf(state)
if current_status == READY_STATUS:
report('Component ' + self.component.getName() + ' is not healthy. Restarting...',
project=self.project_name, component=self.component)
if not self.component.update():
report('Could not restart component ' + self.component.getName(),
project=self.project_name, component=self.component,
level=ReportLevels.IMPORTANT)
self.monitor_event.clear()
continue
def waitForCommand(self):
""" Waits for an command notification on the component in etcd. If one is received,
processes it by attempting to update the component.
"""
is_initial_loop = True
sleep_time = 0
while True:
# Sleep and then check again.
time.sleep(sleep_time)
sleep_time = CHECK_SLEEP_TIME
# Check the component's status.
self.logger.debug('Checking state for component %s', self.component.getName())
state = self.state.getState()
self.logger.debug('Found state %s for component %s', state, self.component.getName())
# Determine whether we should give initial status messages.
was_initial_loop = is_initial_loop
is_initial_loop = False
# Take actions based on the status requested.
current_status = ComponentState.getStatusOf(state)
sleep_time = self.handleStatus(current_status, state, was_initial_loop)
def handleStatus(self, current_status, state, was_initial_check):
""" Handles the various status states for the component, returning the
amount of time after which to retry lookup up the state or -1 for
terminated.
"""
if current_status == STOPPED_STATUS:
return self.handleStopped(was_initial_check)
elif current_status == KILLED_STATUS:
return self.handleKilled(was_initial_check)
elif current_status == READY_STATUS or current_status == PULL_FAIL:
with self.update_lock:
return self.handleReady(state, was_initial_check)
return CHECK_SLEEP_TIME
def handleStopped(self, was_initial_check):
""" Handles when the component has been marked to be stopped. """
self.monitor_event.clear()
if was_initial_check:
report('Component %s is marked as stopped' % self.component.getName(),
project=self.project_name, component=self.component)
self.is_running = False
self.component.stop(kill=False)
return CHECK_SLEEP_TIME
def handleKilled(self, was_initial_check):
""" Handles when the component has been marked to be killed. """
self.monitor_event.clear()
if was_initial_check:
report('Component %s is marked as killed' % self.component.getName(),
project=self.project_name, component=self.component)
self.is_running = False
self.component.stop(kill=True)
return CHECK_SLEEP_TIME
def handleReady(self, state, was_initial_check):
""" Handles when the component has been marked as ready. """
# If the status is ready, we update the component if:
# - The ID of the component's image does not match that found in the status.
# - The process is not running.
imageid = ComponentState.getImageIdOf(state)
imageid_different = imageid != self.component.getImageId()
should_update = not self.is_running or imageid_different
if should_update:
self.is_running = False
self.monitor_event.clear()
# We need to update this machine's copy. First, do a test and set to ensure that
# we are the only machine allowed to update. If the test and set fails, we'll
# try again in 10s.
if imageid_different:
report('Detected pushed update for component ' + self.component.getName(),
project=self.project_name, component=self.component)
else:
report('Component %s is not running; starting' % self.component.getName(),
project=self.project_name, component=self.component)
result = self.state.setUpdatingStatus('updating', self.machine_id, state)
if not result:
# The exchange failed. Sleep CHECK_SHORT_SLEEP_TIME seconds and try again.
report('Could not grab update lock. Will try again in %s seconds' % CHECK_SHORT_SLEEP_TIME,
project=self.project_name, component=self.component)
return CHECK_SHORT_SLEEP_TIME
# Start the update by pulling the repo for the component.
if imageid_different:
report('Pulling the image for component ' + self.component.getName())
if not self.component.pullRepo():
# The pull failed.
report('Pull failed of image %s for component %s' % (imageid[0:12],
self.component.getName()),
project=self.project_name, component=self.component, level=ReportLevels.IMPORTANT)
self.state.setUpdatingStatus('pullfail', self.machine_id, result)
return CHECK_SLEEP_TIME
# Run the update on the component and wait for it to finish.
if imageid_different:
report('Starting update for component ' + self.component.getName(),
project=self.project_name, component=self.component)
if not self.component.update():
# The update failed.
self.state.setUpdatingStatus('updatefail', self.machine_id, result)
return CHECK_SLEEP_TIME
# Otherwise, the update has succeeded. Mark the component as ready, so another
# gantryd can start its update.
if imageid_different:
report('Update completed for component ' + self.component.getName(),
project=self.project_name, component=self.component)
else:
report('Component ' + self.component.getName() + ' is now running',
project=self.project_name, component=self.component)
self.state.setReadyStatus(self.component.getImageId())
self.is_running = True
self.monitor_event.set()
return CHECK_SLEEP_TIME
