class ConfMonitor:
def __init__(self, apps_dir):
self.apps_dir = apps_dir
self.snapshot = NetworkSnapshot()
self.check_interval = self.snapshot.interval
self.apps = {}
self.logger = logging.getLogger('conf-monitor')
def get_apps(self):
self.apps = app.read_apps(self.apps_dir)
self.apps_set = set(self.apps.keys())
def link_app(self, cmd, app):
try:
cmd.run('link_app', app)
self.logger.info('%s added to %s' % (app, cmd.host))
except:
self.logger.error('Could not add app %s to %s' % (app, cmd.host))
def remove_app(self, cmd, app):
try:
cmd.run('rm_app', app)
self.logger.info('%s removed from %s' % (app, cmd.host))
except:
self.logger.error('Could not remove app %s from %s' % (app, cmd.host))
def check(self, edge_location):
edge_apps = set(edge_location.apps)
if edge_apps == self.apps_set:
return
cmd = RemoteCommand(edge_location.address)
to_link = self.apps_set - edge_apps
if to_link:
for app in to_link:
self.link_app(cmd, app)
to_remove = edge_apps - self.apps_set
if to_remove:
for app in to_remove:
self.remove_app(cmd, app)
def monitor(self):
self.logger.info('Using "%s" as applications dir' %(self.apps_dir))
while True:
try:
self.get_apps()
self.snapshot.memcache_load()
for edge_location in self.snapshot.edge_locations:
self.check(edge_location)
time.sleep(self.check_interval)
except KeyboardInterrupt:
self.logger.info('Exiting...')
exit()
except Exception as e:
self.logger.exception(e)
exit()
class ConfMonitor:
def __init__(self, apps_dir):
self.apps_dir = apps_dir
self.snapshot = NetworkSnapshot()
self.check_interval = self.snapshot.interval
self.apps = {}
self.logger = logging.getLogger('conf-monitor')
def get_apps(self):
self.apps = app.read_apps(self.apps_dir)
self.apps_set = set(self.apps.keys())
def link_app(self, cmd, app):
try:
cmd.run('link_app', app)
self.logger.info('%s added to %s' % (app, cmd.host))
except:
self.logger.error('Could not add app %s to %s' % (app, cmd.host))
def remove_app(self, cmd, app):
try:
cmd.run('rm_app', app)
self.logger.info('%s removed from %s' % (app, cmd.host))
except:
self.logger.error('Could not remove app %s from %s' %
(app, cmd.host))
def check(self, edge_location):
edge_apps = set(edge_location.apps)
if edge_apps == self.apps_set:
return
cmd = RemoteCommand(edge_location.address)
to_link = self.apps_set - edge_apps
if to_link:
for app in to_link:
self.link_app(cmd, app)
to_remove = edge_apps - self.apps_set
if to_remove:
for app in to_remove:
self.remove_app(cmd, app)
def monitor(self):
self.logger.info('Using "%s" as applications dir' % (self.apps_dir))
while True:
try:
self.get_apps()
self.snapshot.memcache_load()
for edge_location in self.snapshot.edge_locations:
self.check(edge_location)
time.sleep(self.check_interval)
except KeyboardInterrupt:
self.logger.info('Exiting...')
exit()
except Exception as e:
self.logger.exception(e)
exit()