class Main(object):
def __init__(self):
self.logger = logging.getLogger('etcd')
self.root = None
self.configfile = None
self.config = None
self.datastore = None
self.configstore = None
self.client = None
self.plugin_dirs = []
self.renderers = {}
self.managed_files = {}
def init_datastore(self):
try:
self.datastore = datastore.get_datastore(self.configfile)
except datastore.DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect()
self.client = Client()
self.client.on_error(on_error)
self.connect()
def connect(self):
while True:
try:
self.client.connect('unix:')
self.client.login_service('etcd')
self.client.enable_server()
self.client.register_service('etcd.generation',
FileGenerationService(self))
self.client.register_service('etcd.management',
ManagementService(self))
self.client.register_service('etcd.debug', DebugService())
self.client.resume_service('etcd.generation')
self.client.resume_service('etcd.management')
self.client.resume_service('etcd.debug')
return
except (OSError, RpcException) as err:
self.logger.warning(
'Cannot connect to dispatcher: {0}, retrying in 1 second'.
format(str(err)))
time.sleep(1)
def init_renderers(self):
for name, impl in TEMPLATE_RENDERERS.items():
self.renderers[name] = impl(self)
def parse_config(self, filename):
try:
f = open(filename, 'r')
self.config = json.load(f)
f.close()
except IOError as err:
self.logger.error('Cannot read config file: %s', err.message)
sys.exit(1)
except ValueError:
self.logger.error(
'Config file has unreadable format (not valid JSON)')
sys.exit(1)
self.plugin_dirs = self.config['etcd']['plugin-dirs']
def scan_plugins(self):
for i in self.plugin_dirs:
self.scan_plugin_dir(i)
def scan_plugin_dir(self, dir):
self.logger.debug('Scanning plugin directory %s', dir)
for root, dirs, files in os.walk(dir):
for name in files:
abspath = os.path.join(root, name)
path = os.path.relpath(abspath, dir)
name, ext = os.path.splitext(path)
if name in self.managed_files.keys():
continue
if ext in TEMPLATE_RENDERERS.keys():
self.managed_files[name] = abspath
self.logger.info('Adding managed file %s [%s]', name, ext)
def generate_file(self, file_path):
if file_path not in self.managed_files.keys():
raise RpcException(errno.ENOENT, 'No such file')
template_path = self.managed_files[file_path]
name, ext = os.path.splitext(template_path)
if ext not in self.renderers.keys():
raise RuntimeError("Can't find renderer for {0}".format(file_path))
renderer = self.renderers[ext]
try:
return renderer.render_template(template_path)
except Exception as e:
self.logger.warn('Cannot generate file {0}: {1}'.format(
file_path, str(e)))
return "# FILE GENERATION FAILED: {0}\n".format(str(e))
def emit_event(self, name, params):
self.client.emit_event(name, params)
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c',
metavar='CONFIG',
default=DEFAULT_CONFIGFILE,
help='Middleware config file')
parser.add_argument('-f',
action='store_true',
default=False,
help='Run in foreground')
parser.add_argument('mountpoint',
metavar='MOUNTPOINT',
default='/etc',
help='/etc mount point')
args = parser.parse_args()
configure_logging('/var/log/etcd.log', 'DEBUG')
setproctitle.setproctitle('etcd')
self.root = args.mountpoint
self.configfile = args.c
self.parse_config(args.c)
self.scan_plugins()
self.init_renderers()
self.init_datastore()
self.init_dispatcher()
self.client.wait_forever()
class Main(object):
def __init__(self):
self.logger = logging.getLogger('alertd')
self.config = None
self.datastore = None
self.configstore = None
self.client = None
self.plugin_dirs = []
self.emitters = {}
def init_datastore(self):
try:
self.datastore = datastore.get_datastore()
except datastore.DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect()
self.client = Client()
self.client.on_error(on_error)
self.connect()
def init_reminder(self):
t = threading.Thread(target=self.reminder_thread)
t.daemon = True
t.start()
def parse_config(self, filename):
try:
f = open(filename, 'r')
self.config = json.load(f)
f.close()
except IOError as err:
self.logger.error('Cannot read config file: %s', err.message)
sys.exit(1)
except ValueError:
self.logger.error('Config file has unreadable format (not valid JSON)')
sys.exit(1)
self.plugin_dirs = self.config['alertd']['plugin-dirs']
def connect(self):
while True:
try:
self.client.connect('unix:')
self.client.login_service('alertd')
self.client.enable_server()
self.client.register_service('alertd.management', ManagementService(self))
self.client.register_service('alertd.alert', AlertService(self))
self.client.register_service('alertd.debug', DebugService())
self.client.resume_service('alertd.management')
self.client.resume_service('alertd.alert')
self.client.resume_service('alertd.debug')
return
except (OSError, RpcException) as err:
self.logger.warning('Cannot connect to dispatcher: {0}, retrying in 1 second'.format(str(err)))
time.sleep(1)
def scan_plugins(self):
for i in self.plugin_dirs:
self.scan_plugin_dir(i)
def scan_plugin_dir(self, dir):
self.logger.debug('Scanning plugin directory %s', dir)
for f in os.listdir(dir):
name, ext = os.path.splitext(os.path.basename(f))
if ext != '.py':
continue
try:
plugin = imp.load_source(name, os.path.join(dir, f))
plugin._init(self)
except:
self.logger.error('Cannot initialize plugin {0}'.format(f), exc_info=True)
def emit_alert(self, alert):
self.logger.debug('Emitting alert <id:{0}> (class {1})'.format(alert['id'], alert['class']))
for i in self.datastore.query('alert.filters'):
for predicate in i.get('predicates', []):
if predicate['operator'] not in operators_table:
continue
if not operators_table[predicate['operator']](alert[predicate['property']], predicate['value']):
break
else:
try:
emitter = self.emitters.get(i['emitter'])
if not emitter:
self.logger.warning('Invalid emitter {0} for alert filter {1}'.format(i['emitter'], i['id']))
continue
self.logger.debug('Alert <id:{0}> matched filter {1}'.format(alert['id'], i['id']))
if alert['send_count'] > 0:
emitter.emit_again(alert, i['parameters'])
else:
emitter.emit_first(alert, i['parameters'])
except BaseException as err:
# Failed to emit alert using alert emitter
# XXX: generate another alert about that
self.logger.error('Cannot emit alert <id:{0}> using {1}: {2}'.format(
alert['id'],
i['emitter'],
str(err))
)
alert['send_count'] += 1
alert['last_emitted_at'] = datetime.utcnow()
if alert['one_shot']:
alert['active'] = False
self.datastore.update('alerts', alert['id'], alert)
def cancel_alert(self, alert):
self.logger.debug('Cancelling alert <id:{0}> (class {1})'.format(alert['id'], alert['class']))
alert.update({
'active': False,
'cancelled': datetime.utcnow()
})
self.datastore.update('alerts', alert['id'], alert)
def register_emitter(self, name, cls):
self.emitters[name] = cls(self)
self.logger.info('Registered emitter {0} (class {1})'.format(name, cls))
def reminder_thread(self):
while True:
time.sleep(REMINDER_SECONDS)
for i in self.datastore.query('alerts'):
if not i['active'] or i['dismissed']:
continue
last_emission = i.get('last_emitted_at') or i['created_at']
interval = REMINDER_SCHEDULE[i['severity']]
if not interval:
continue
if last_emission + timedelta(seconds=interval) <= datetime.utcnow():
self.emit_alert(i)
def checkin(self):
checkin()
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c', metavar='CONFIG', default=DEFAULT_CONFIGFILE, help='Middleware config file')
args = parser.parse_args()
configure_logging('/var/log/alertd.log', 'DEBUG')
setproctitle('alertd')
self.config = args.c
self.parse_config(self.config)
self.init_datastore()
self.init_dispatcher()
self.scan_plugins()
self.init_reminder()
self.checkin()
self.client.wait_forever()
class Main:
def __init__(self):
self.config = None
self.client = None
self.datastore = None
self.configstore = None
self.rtsock_thread = None
self.logger = logging.getLogger('networkd')
def configure_dhcp(self, interface):
# Check if dhclient is running
if os.path.exists(os.path.join('/var/run', 'dhclient.{0}.pid'.format(interface))):
self.logger.info('Interface {0} already configured by DHCP'.format(interface))
return True
# XXX: start dhclient through launchd in the future
ret = subprocess.call(['/sbin/dhclient', interface])
return ret == 0
def interface_detached(self, name):
self.logger.warn('Interface {0} detached from the system'.format(name))
def interface_attached(self, name):
self.logger.warn('Interface {0} attached to the system'.format(name))
def using_dhcp_for_gateway(self):
for i in self.datastore.query('network.interfaces'):
if i.get('dhcp') and self.configstore.get('network.dhcp.assign_gateway'):
return True
return False
def scan_interfaces(self):
self.logger.info('Scanning available network interfaces...')
existing = []
# Add newly plugged NICs to DB
for i in list(netif.list_interfaces().values()):
# We want only physical NICs
if i.cloned:
continue
existing.append(i.name)
if not self.datastore.exists('network.interfaces', ('id', '=', i.name)):
self.logger.info('Found new interface {0} ({1})'.format(i.name, i.type.name))
self.datastore.insert('network.interfaces', {
'enabled': False,
'id': i.name,
'type': i.type.name
})
# Remove unplugged NICs from DB
for i in self.datastore.query('network.interfaces', ('id', 'nin', existing)):
self.datastore.delete('network.interfaces', i['id'])
def parse_config(self, filename):
try:
f = open(filename, 'r')
self.config = json.load(f)
f.close()
except IOError as err:
self.logger.error('Cannot read config file: %s', err.message)
sys.exit(1)
except ValueError as err:
self.logger.error('Config file has unreadable format (not valid JSON)')
sys.exit(1)
def init_datastore(self):
try:
self.datastore = get_datastore(self.config['datastore']['driver'], self.config['datastore']['dsn'])
except DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def connect(self, resume=False):
while True:
try:
self.client.connect('127.0.0.1')
self.client.login_service('networkd')
self.client.enable_server()
self.register_schemas()
self.client.register_service('networkd.configuration', ConfigurationService(self))
self.client.register_service('networkd.debug', DebugService())
if resume:
self.client.resume_service('networkd.configuration')
self.client.resume_service('networkd.debug')
return
except socket.error as err:
self.logger.warning('Cannot connect to dispatcher: {0}, retrying in 1 second'.format(str(err)))
time.sleep(1)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect(resume=True)
self.client = Client()
self.client.on_error(on_error)
self.connect()
def init_routing_socket(self):
self.rtsock_thread = RoutingSocketEventSource(self)
self.rtsock_thread.start()
def register_schemas(self):
self.client.register_schema('network-aggregation-protocols', {
'type': 'string',
'enum': list(netif.AggregationProtocol.__members__.keys())
})
self.client.register_schema('network-interface-flags', {
'type': 'array',
'items': {
'type': 'string',
'enum': list(netif.InterfaceFlags.__members__.keys())
}
})
self.client.register_schema('network-interface-capabilities', {
'type': 'array',
'items': {
'type': 'string',
'enum': list(netif.InterfaceCapability.__members__.keys())
}
})
self.client.register_schema('network-interface-mediaopts', {
'type': 'array',
'items': {
'type': 'string',
'enum': list(netif.InterfaceMediaOption.__members__.keys())
}
})
self.client.register_schema('network-interface-type', {
'type': 'string',
'enum': [
'LOOPBACK',
'ETHER',
'VLAN',
'BRIDGE',
'LAGG'
]
})
self.client.register_schema('network-interface-status', {
'type': 'object',
'properties': {
'name': {'type': 'string'},
'link_state': {'type': 'string'},
'link_address': {'type': 'string'},
'mtu': {'type': 'integer'},
'media_type': {'type': 'string'},
'media_subtype': {'type': 'string'},
'media_options': {'$ref': 'network-interface-media-options'},
'capabilities': {'$ref': 'network-interface-capabilities'},
'flags': {'$ref': 'network-interface-flags'},
'aliases': {
'type': 'array',
'items': {'$ref': 'network-interface-alias'}
}
}
})
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c', metavar='CONFIG', default=DEFAULT_CONFIGFILE, help='Middleware config file')
args = parser.parse_args()
configure_logging('/var/log/networkd.log', 'DEBUG')
setproctitle.setproctitle('networkd')
self.parse_config(args.c)
self.init_datastore()
self.init_dispatcher()
self.scan_interfaces()
self.init_routing_socket()
self.client.resume_service('networkd.configuration')
self.logger.info('Started')
self.client.wait_forever()
class Main(object):
def __init__(self):
self.config = None
self.client = None
self.datastore = None
self.configstore = None
self.rtsock_thread = None
self.dhcp_clients = {}
self.dhcp_lock = threading.RLock()
self.configure_network = None
self.logger = logging.getLogger('networkd')
self.default_interface = None
self.cv = Condition()
def dhclient_pid(self, interface):
path = os.path.join('/var/run', 'dhclient.{0}.pid'.format(interface))
if not os.path.exists(path):
return None
try:
with open(path) as f:
pid = int(f.read().strip())
return pid
except (IOError, ValueError):
return None
def dhclient_running(self, interface):
pid = self.dhclient_pid(interface)
if not pid:
return False
try:
os.kill(pid, 0)
return True
except OSError:
return False
def configure_dhcp(self, interface, block=False, timeout=None):
if interface in self.dhcp_clients:
self.logger.info('Interface {0} already configured by DHCP'.format(interface))
return True
def bind(old_lease, lease):
self.logger.info('{0} DHCP lease on {1} from {2}, valid for {3} seconds'.format(
'Renewed' if old_lease else 'Acquired',
interface,
client.server_address,
lease.lifetime,
interface
))
if old_lease is None or lease.client_ip != old_lease.client_ip:
self.logger.info('Assigning IP address {0} to interface {1}'.format(lease.client_ip, interface))
alias = lease.client_interface
iface = netif.get_interface(interface)
if old_lease:
try:
addr = first_or_default(lambda a: a.address == old_lease.client_ip, iface.addresses)
if addr:
iface.remove_address(addr)
except OSError as err:
self.logger.error('Cannot remove alias {0}: {1}'.format(old_lease.client_ip, err.strerror))
try:
iface.add_address(netif.InterfaceAddress(netif.AddressFamily.INET, alias))
except OSError as err:
self.logger.error('Cannot add alias to {0}: {1}'.format(interface, err.strerror))
if lease.router and self.configstore.get('network.dhcp.assign_gateway'):
try:
rtable = netif.RoutingTable()
newroute = default_route(lease.router)
if rtable.default_route_ipv4 != newroute:
if rtable.default_route_ipv4:
self.logger.info('DHCP default route changed from {0} to {1}'.format(
rtable.default_route_ipv4,
newroute
))
rtable.delete(rtable.default_route_ipv4)
rtable.add(default_route(lease.router))
else:
self.logger.info('Adding default route via {0}'.format(lease.router))
rtable.add(default_route(lease.router))
except OSError as err:
self.logger.error('Cannot configure default route: {0}'.format(err.strerror))
if lease.dns_addresses and self.configstore.get('network.dhcp.assign_dns'):
inp = []
addrs = []
proc = subprocess.Popen(
['/sbin/resolvconf', '-a', interface],
stdout=subprocess.PIPE,
stdin=subprocess.PIPE
)
for i in lease.dns_addresses:
# Filter out bogus DNS server addresses
if str(i) in ('127.0.0.1', '0.0.0.0', '255.255.255.255'):
continue
inp.append('nameserver {0}'.format(i))
addrs.append(i)
if lease.domain_name:
inp.append('search {0}'.format(lease.domain_name))
proc.communicate('\n'.join(inp).encode('ascii'))
proc.wait()
self.client.emit_event('network.dns.configured', {
'addresses': addrs,
})
self.logger.info('Updated DNS configuration')
else:
subprocess.call(['/sbin/resolvconf', '-d', interface])
self.client.emit_event('network.dns.configured', {
'addresses': [],
})
self.logger.info('Deleted DNS configuration')
def reject(reason):
self.logger.info('DHCP request rejected on {0}: {1}'.format(interface, reason))
self.deconfigure_dhcp(interface)
if not block:
t = threading.Timer(60, self.configure_dhcp, args=(interface,))
t.start()
def unbind(lease, reason):
reasons = {
dhcp.client.UnbindReason.EXPIRE: 'expired',
dhcp.client.UnbindReason.REVOKE: 'revoked'
}
self.logger.info('DHCP lease on {0}: {1}'.format(interface, reasons.get(reason, 'revoked')))
def state_change(state):
self.client.emit_event('network.interface.changed', {
'operation': 'update',
'ids': [interface]
})
self.client.emit_event('network.changed', {
'operation': 'update'
})
with self.dhcp_lock:
client = dhcp.client.Client(interface, lambda: socket.gethostname().split('.')[0])
client.on_bind = bind
client.on_unbind = unbind
client.on_reject = reject
client.on_state_change = state_change
client.start()
self.dhcp_clients[interface] = client
if block:
ret = client.wait_for_bind(timeout)
if ret is None:
client.stop()
del self.dhcp_clients[interface]
return ret is not None
return True
def deconfigure_dhcp(self, interface):
with self.dhcp_lock:
client = self.dhcp_clients[interface]
client.release()
client.stop()
del self.dhcp_clients[interface]
def renew_dhcp(self, interface):
if interface not in self.dhcp_clients:
raise RpcException(errno.ENXIO, 'Interface {0} is not configured for DHCP'.format(interface))
if not self.dhcp_clients[interface].lease:
raise RpcException(errno.ENOENT, 'Cannot renew without a lease')
self.dhcp_clients[interface].request(renew=True, timeout=30)
def interface_detached(self, name):
self.logger.warn('Interface {0} detached from the system'.format(name))
def interface_attached(self, name):
self.logger.warn('Interface {0} attached to the system'.format(name))
def using_dhcp_for_gateway(self):
for i in self.datastore.query('network.interfaces'):
if i.get('dhcp') and self.configstore.get('network.dhcp.assign_gateway'):
return True
return False
def scan_interfaces(self):
self.logger.info('Scanning available network interfaces...')
existing = []
# Add newly plugged NICs to DB
for i in list(netif.list_interfaces().values()):
existing.append(i.name)
# We want only physical NICs
if i.cloned:
continue
if i.name in ('mgmt0', 'nat0'):
continue
if i.name.startswith(('tap', 'brg')):
continue
if not self.datastore.exists('network.interfaces', ('id', '=', i.name)):
self.logger.info('Found new interface {0} ({1})'.format(i.name, i.type.name))
self.datastore.insert('network.interfaces', {
'enabled': False,
'id': i.name,
'name': None,
'cloned': False,
'type': i.type.name,
'dhcp': False,
'noipv6': False,
'rtadv': False,
'mtu': i.mtu,
'media': None,
'mediaopts': [],
'aliases': [],
'capabilities': {
'add': [],
'del': []
}
})
# Remove unplugged NICs from DB
for i in self.datastore.query('network.interfaces', ('id', 'nin', existing), ('cloned', '=', False)):
self.datastore.delete('network.interfaces', i['id'])
def init_datastore(self):
try:
self.datastore = get_datastore(self.config)
except DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def connect(self, resume=False):
while True:
try:
self.client.connect('unix:')
self.client.login_service('networkd')
self.client.enable_server()
self.register_schemas()
self.client.register_service('networkd.configuration', ConfigurationService(self))
self.client.register_service('networkd.debug', DebugService())
if resume:
self.client.resume_service('networkd.configuration')
self.client.resume_service('networkd.debug')
return
except (OSError, RpcException) as err:
self.logger.warning('Cannot connect to dispatcher: {0}, retrying in 1 second'.format(str(err)))
time.sleep(1)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect(resume=True)
self.client = Client()
self.client.on_error(on_error)
self.connect()
def init_routing_socket(self):
self.rtsock_thread = RoutingSocketEventSource(self)
self.rtsock_thread.start()
def register_schemas(self):
self.client.register_schema('NetworkAggregationProtocols', {
'type': 'string',
'enum': list(netif.AggregationProtocol.__members__.keys())
})
self.client.register_schema('NetworkLaggPortFlags', {
'type': 'array',
'items': {'$ref': 'NetworkLaggPortFlagsItems'}
})
self.client.register_schema('NetworkLaggPortFlagsItems', {
'type': 'string',
'enum': list(netif.LaggPortFlags.__members__.keys())
})
self.client.register_schema('NetworkInterfaceFlags', {
'type': 'array',
'items': {'$ref': 'NetworkInterfaceFlagsItems'}
})
self.client.register_schema('NetworkInterfaceFlagsItems', {
'type': 'string',
'enum': list(netif.InterfaceFlags.__members__.keys())
})
self.client.register_schema('NetworkInterfaceCapabilities', {
'type': 'array',
'items': {'$ref': 'NetworkInterfaceCapabilitiesItems'}
})
self.client.register_schema('NetworkInterfaceCapabilitiesItems', {
'type': 'string',
'enum': list(netif.InterfaceCapability.__members__.keys())
})
self.client.register_schema('NetworkInterfaceMediaopts', {
'type': 'array',
'items': {'$ref': 'NetworkInterfaceMediaoptsItems'}
})
self.client.register_schema('NetworkInterfaceMediaoptsItems', {
'type': 'string',
'enum': list(netif.InterfaceMediaOption.__members__.keys())
})
self.client.register_schema('NetworkInterfaceNd6Flag', {
'type': 'array',
'items': {'$ref': 'NetworkInterfaceNd6FlagItems'}
})
self.client.register_schema('NetworkInterfaceNd6FlagItems', {
'type': 'string',
'enum': list(netif.NeighborDiscoveryFlags.__members__.keys())
})
self.client.register_schema('NetworkInterfaceType', {
'type': 'string',
'enum': [
'LOOPBACK',
'ETHER',
'VLAN',
'BRIDGE',
'LAGG'
]
})
self.client.register_schema('NetworkInterfaceDhcpState', {
'type': 'string',
'enum': [
'INIT',
'SELECTING',
'REQUESTING',
'INIT_REBOOT',
'REBOOTING',
'BOUND',
'RENEWING',
'REBINDING'
]
})
self.client.register_schema('NetworkInterfaceStatus', {
'type': 'object',
'properties': {
'name': {'type': 'string'},
'link_state': {'$ref': 'NetworkInterfaceStatusLinkstate'},
'link_address': {'type': 'string'},
'mtu': {'type': 'integer'},
'media_type': {'type': 'string'},
'media_subtype': {'type': 'string'},
'active_media_type': {'type': 'string'},
'active_media_subtype': {'type': 'string'},
'media_options': {'$ref': 'NetworkInterfaceMediaopts'},
'supported_media': {
'type': 'array',
'items': {'type': 'string'}
},
'cloned': {'type': 'boolean'},
'capabilities': {'$ref': 'NetworkInterfaceCapabilities'},
'flags': {'$ref': 'NetworkInterfaceFlags'},
'dhcp': {
'type': 'object',
'properties': {
'state': {'$ref': 'NetworkInterfaceDhcpState'},
'server_address': {'type': 'string'},
'server_name': {'type': 'string'},
'lease_starts_at': {'type': 'datetime'},
'lease_ends_at': {'type': 'datetime'}
}
},
'aliases': {
'type': 'array',
'items': {'$ref': 'NetworkInterfaceAlias'}
},
'nd6_flags': {
'type': 'array',
'items': {'$ref': 'NetworkInterfaceNd6Flag'}
},
'ports': {
'oneOf': [
{'type': 'null'},
{
'type': 'array',
'members': {
'type': 'object',
'properties': {
'name': {'type': 'string'},
'flags': {'$ref': 'NetworkLaggPortFlags'}
}
}
}
]
},
'members': {
'oneOf': [
{'type': 'null'},
{
'type': 'array',
'members': {'type': 'string'}
}
]
},
'parent': {'type': ['string', 'null']},
'tag': {'type': ['integer', 'null']}
}
})
self.client.register_schema('NetworkInterfaceStatusLinkstate', {
'type': 'string',
'enum': list(netif.InterfaceLinkState.__members__.keys())
})
def checkin(self):
checkin()
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c', metavar='CONFIG', default=DEFAULT_CONFIGFILE, help='Middleware config file')
args = parser.parse_args()
configure_logging('networkd', 'DEBUG')
setproctitle('networkd')
self.config = args.c
self.init_datastore()
self.init_dispatcher()
self.scan_interfaces()
self.init_routing_socket()
self.client.resume_service('networkd.configuration')
self.client.resume_service('networkd.debug')
for i in self.configure_network():
self.logger.info('Initial network configuration: {0}, {1}'.format(*i))
self.checkin()
self.logger.info('Started')
self.client.wait_forever()
class Context(object):
def __init__(self):
self.logger = logging.getLogger(self.__class__.__name__)
self.msock = msock.client.Client()
self.msock.on_closed = self.on_msock_close
self.rpc_fd = -1
self.connection_id = None
self.jobs = []
self.state = ConnectionState.OFFLINE
self.config = None
self.keepalive = None
self.connected_at = None
self.cv = Condition()
self.rpc = RpcContext()
self.client = Client()
self.server = Server()
self.middleware_endpoint = None
def start(self, configpath, sockpath):
signal.signal(signal.SIGUSR2, lambda signo, frame: self.connect())
self.read_config(configpath)
self.server.rpc = RpcContext()
self.server.rpc.register_service_instance('control',
ControlService(self))
self.server.start(sockpath)
threading.Thread(target=self.server.serve_forever,
name='server thread',
daemon=True).start()
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect_dispatcher()
self.middleware_endpoint = Client()
self.middleware_endpoint.on_error(on_error)
self.connect_dispatcher()
def connect_dispatcher(self):
while True:
try:
self.middleware_endpoint.connect('unix:')
self.middleware_endpoint.login_service('debugd')
self.middleware_endpoint.enable_server()
self.middleware_endpoint.register_service(
'debugd.management', ControlService(self))
self.middleware_endpoint.resume_service('debugd.management')
return
except (OSError, RpcException) as err:
self.logger.warning(
'Cannot connect to dispatcher: {0}, retrying in 1 second'.
format(str(err)))
time.sleep(1)
def read_config(self, path):
try:
with open(path) as f:
self.config = json.load(f)
except (IOError, OSError, ValueError) as err:
self.logger.fatal('Cannot open config file: {0}'.format(str(err)))
self.logger.fatal('Exiting.')
sys.exit(1)
def connect(self, discard=False):
if discard:
self.connection_id = None
self.keepalive = threading.Thread(target=self.connect_keepalive,
daemon=True)
self.keepalive.start()
def connect_keepalive(self):
while True:
try:
if not self.connection_id:
self.connection_id = uuid.uuid4()
self.msock.connect(SUPPORT_PROXY_ADDRESS)
self.logger.info(
'Connecting to {0}'.format(SUPPORT_PROXY_ADDRESS))
self.rpc_fd = self.msock.create_channel(0)
time.sleep(1) # FIXME
self.client = Client()
self.client.connect('fd://', fobj=self.rpc_fd)
self.client.channel_serializer = MSockChannelSerializer(
self.msock)
self.client.standalone_server = True
self.client.enable_server()
self.client.register_service('debug', DebugService(self))
self.client.call_sync('server.login', str(self.connection_id),
socket.gethostname(), get_version(),
'none')
self.set_state(ConnectionState.CONNECTED)
except BaseException as err:
self.logger.warning(
'Failed to initiate support connection: {0}'.format(err),
exc_info=True)
self.msock.disconnect()
else:
self.connected_at = datetime.now()
with self.cv:
self.cv.wait_for(lambda: self.state in (
ConnectionState.LOST, ConnectionState.OFFLINE))
if self.state == ConnectionState.OFFLINE:
return
self.logger.warning(
'Support connection lost, retrying in 10 seconds')
time.sleep(10)
def disconnect(self):
self.connected_at = None
self.set_state(ConnectionState.OFFLINE)
self.client.disconnect()
self.msock.destroy_channel(0)
self.msock.disconnect()
self.jobs.clear()
def on_msock_close(self):
self.connected_at = None
self.set_state(ConnectionState.LOST)
def run_job(self, job):
self.jobs.append(job)
job.context = self
job.start()
def set_state(self, state):
with self.cv:
self.state = state
self.cv.notify_all()
class Main(object):
def __init__(self):
self.logger = logging.getLogger('dscached')
self.config = None
self.datastore = None
self.configstore = None
self.rpc = RpcContext()
self.rpc.streaming_enabled = True
self.rpc.streaming_burst = 16
self.client = None
self.server = None
self.plugin_dirs = []
self.plugins = {}
self.directories = []
self.users_cache = TTLCacheStore()
self.groups_cache = TTLCacheStore()
self.hosts_cache = TTLCacheStore()
self.cache_ttl = 7200
self.search_order = []
self.cache_enumerations = True
self.cache_lookups = True
self.home_directory_root = None
self.account_service = AccountService(self)
self.group_service = GroupService(self)
self.rpc.register_service_instance('dscached.account',
self.account_service)
self.rpc.register_service_instance('dscached.group',
self.group_service)
self.rpc.register_service_instance('dscached.host', HostService(self))
self.rpc.register_service_instance('dscached.idmap',
IdmapService(self))
self.rpc.register_service_instance('dscached.management',
ManagementService(self))
self.rpc.register_service_instance('dscached.debug', DebugService())
def get_active_directories(self):
return list(
filter(lambda d: d and d.state == DirectoryState.BOUND,
self.directories))
def get_searched_directories(self):
return list(
filter(lambda d: d and d.state == DirectoryState.BOUND,
(self.get_directory_by_name(n)
for n in self.get_search_order())))
def get_search_order(self):
return self.search_order
def get_directory_by_domain(self, domain_name):
return first_or_default(lambda d: d.domain_name == domain_name,
self.directories)
def get_directory_by_name(self, name):
return first_or_default(lambda d: d.name == name, self.directories)
def get_directory_for_id(self, uid=None, gid=None):
if uid is not None:
if uid == 0:
# Special case for root user
return first_or_default(lambda d: d.plugin_type == 'local',
self.directories)
return first_or_default(
lambda d: d.max_uid and d.max_uid >= uid >= d.min_uid,
self.directories)
if gid is not None:
if gid == 0:
# Special case for wheel group
return first_or_default(lambda d: d.plugin_type == 'local',
self.directories)
return first_or_default(
lambda d: d.max_gid and d.max_gid >= gid >= d.min_gid,
self.directories)
def get_home_directory(self, directory, username):
if not self.home_directory_root:
return '/nonexistent'
return os.path.join(self.home_directory_root,
f'{username}@{directory.domain_name}')
def wait_for_etcd(self):
self.client.test_or_wait_for_event(
'plugin.service_resume',
lambda args: args['name'] == 'etcd.generation',
lambda: 'etcd.generation' in self.client.call_sync(
'discovery.get_services'))
def init_datastore(self):
try:
self.datastore = datastore.get_datastore()
except datastore.DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect()
self.client = Client()
self.client.on_error(on_error)
self.connect()
def init_server(self, address):
self.server = Server(self)
self.server.rpc = self.rpc
self.server.streaming = True
self.server.start(address, transport_options={'permissions': 0o777})
thread = Thread(target=self.server.serve_forever)
thread.name = 'ServerThread'
thread.daemon = True
thread.start()
def parse_config(self, filename):
try:
with open(filename, 'r') as f:
self.config = json.load(f)
except IOError as err:
self.logger.error('Cannot read config file: %s', err.message)
sys.exit(1)
except ValueError:
self.logger.error(
'Config file has unreadable format (not valid JSON)')
sys.exit(1)
self.plugin_dirs = self.config['dscached']['plugin-dirs']
def connect(self):
while True:
try:
self.client.connect('unix:')
self.client.login_service('dscached')
self.client.enable_server(self.rpc)
self.client.resume_service('dscached.account')
self.client.resume_service('dscached.group')
self.client.resume_service('dscached.host')
self.client.resume_service('dscached.idmap')
self.client.resume_service('dscached.management')
self.client.resume_service('dscached.debug')
return
except (OSError, RpcException) as err:
self.logger.warning(
'Cannot connect to dispatcher: {0}, retrying in 1 second'.
format(str(err)))
time.sleep(1)
def scan_plugins(self):
for i in self.plugin_dirs:
self.scan_plugin_dir(i)
def scan_plugin_dir(self, dir):
self.logger.debug('Scanning plugin directory %s', dir)
for f in os.listdir(dir):
name, ext = os.path.splitext(os.path.basename(f))
if ext != '.py':
continue
try:
plugin = load_module_from_file(name, os.path.join(dir, f))
plugin._init(self)
except:
self.logger.error('Cannot initialize plugin {0}'.format(f),
exc_info=True)
def register_plugin(self, name, cls):
self.plugins[name] = cls
self.logger.info('Registered plugin {0} (class {1})'.format(name, cls))
def register_schema(self, name, schema):
self.client.register_schema(name, schema)
def register_schemas(self):
from freenas.dispatcher.model import context
for name, schema in (s.__named_json_schema__()
for s in context.local_json_schema_objects):
self.logger.debug(f'Registering schema: {name}')
self.client.register_schema(name, schema)
def init_directories(self):
for i in self.datastore.query('directories'):
try:
directory = Directory(self, i)
self.directories.append(directory)
directory.configure()
except:
continue
def load_config(self):
self.search_order = self.configstore.get('directory.search_order')
self.cache_ttl = self.configstore.get('directory.cache_ttl')
self.cache_enumerations = self.configstore.get(
'directory.cache_enumerations')
self.cache_lookups = self.configstore.get('directory.cache_lookups')
self.home_directory_root = self.configstore.get(
'system.home_directory_root')
def checkin(self):
checkin()
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c',
metavar='CONFIG',
default=DEFAULT_CONFIGFILE,
help='Middleware config file')
parser.add_argument('-s',
metavar='SOCKET',
default=DEFAULT_SOCKET_ADDRESS,
help='Socket address to listen on')
args = parser.parse_args()
configure_logging('dscached', 'DEBUG')
setproctitle('dscached')
self.config = args.c
self.parse_config(self.config)
self.init_datastore()
self.init_dispatcher()
self.load_config()
self.init_server(args.s)
self.scan_plugins()
self.register_schemas()
self.wait_for_etcd()
self.init_directories()
self.checkin()
self.client.wait_forever()
class Main(object):
def __init__(self):
self.logger = logging.getLogger('neighbord')
self.config = None
self.datastore = None
self.configstore = None
self.client = None
self.config = None
self.logger = logging.getLogger()
self.plugin_dirs = []
self.plugins = {}
def parse_config(self, filename):
try:
with open(filename, 'r') as f:
self.config = json.load(f)
except IOError as err:
self.logger.error('Cannot read config file: %s', err.message)
sys.exit(1)
except ValueError:
self.logger.error('Config file has unreadable format (not valid JSON)')
sys.exit(1)
self.plugin_dirs = self.config['neighbord']['plugin-dirs']
def init_datastore(self):
try:
self.datastore = datastore.get_datastore()
except datastore.DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect()
self.client = Client()
self.client.on_error(on_error)
self.connect()
def scan_plugins(self):
for i in self.plugin_dirs:
self.scan_plugin_dir(i)
def scan_plugin_dir(self, dir):
self.logger.debug('Scanning plugin directory %s', dir)
for f in os.listdir(dir):
name, ext = os.path.splitext(os.path.basename(f))
if ext != '.py':
continue
try:
plugin = load_module_from_file(name, os.path.join(dir, f))
plugin._init(self)
except:
self.logger.error('Cannot initialize plugin {0}'.format(f), exc_info=True)
def register_plugin(self, name, cls):
self.plugins[name] = cls(self)
self.logger.info('Registered plugin {0} (class {1})'.format(name, cls))
def register_service(self, name, regtype, port, properties=None):
for plugin in self.plugins.values():
plugin.register(regtype, name, port, properties)
def register(self):
try:
hostname = socket.gethostname()
general = self.client.call_sync('system.general.get_config')
properties = {
'version': self.client.call_sync('system.info.version'),
'description': general['description'],
'tags': ','.join(general['tags'])
}
self.register_service(hostname, 'freenas', 80, properties)
self.register_service(hostname, 'http', 80)
self.register_service(hostname, 'ssh', 22)
self.register_service(hostname, 'sftp-ssh', 22)
except BaseException as err:
self.logger.error('Failed to register services: {0}'.format(str(err)))
def connect(self):
while True:
try:
self.client.connect('unix:')
self.client.login_service('neighbord')
self.client.enable_server()
self.client.register_service('neighbord.management', ManagementService(self))
self.client.register_service('neighbord.discovery', DiscoveryService(self))
self.client.register_service('neighbord.debug', DebugService())
self.client.resume_service('neighbord.management')
self.client.resume_service('neighbord.discovery')
self.client.resume_service('neighbord.debug')
return
except (OSError, RpcException) as err:
self.logger.warning('Cannot connect to dispatcher: {0}, retrying in 1 second'.format(str(err)))
time.sleep(1)
def checkin(self):
checkin()
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c', metavar='CONFIG', default=DEFAULT_CONFIGFILE, help='Middleware config file')
args = parser.parse_args()
self.config = args.c
configure_logging('/var/log/neighbord.log', 'DEBUG')
setproctitle('neighbord')
self.parse_config(self.config)
self.init_datastore()
self.init_dispatcher()
self.scan_plugins()
self.register()
self.checkin()
self.client.wait_forever()
class Context(object):
def __init__(self):
self.server = None
self.client = None
self.jobs = {}
self.provides = set()
self.lock = RLock()
self.kq = select.kqueue()
self.devnull = os.open('/dev/null', os.O_RDWR)
self.logger = logging.getLogger('Context')
self.rpc = RpcContext()
self.rpc.register_service_instance('serviced.management',
ManagementService(self))
self.rpc.register_service_instance('serviced.job', JobService(self))
def init_dispatcher(self):
if self.client and self.client.connected:
return
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect()
self.client = Client()
self.client.on_error(on_error)
self.connect()
def init_server(self, address):
self.server = Server(self)
self.server.rpc = self.rpc
self.server.streaming = True
self.server.start(address, transport_options={'permissions': 0o777})
thread = Thread(target=self.server.serve_forever)
thread.name = 'ServerThread'
thread.daemon = True
thread.start()
def provide(self, targets):
def doit():
self.logger.debug('Adding dependency targets: {0}'.format(
', '.join(targets)))
with self.lock:
self.provides |= targets
for job in list(self.jobs.values()):
if job.state == JobState.STOPPED and job.requires <= self.provides:
job.start()
if targets:
Timer(2, doit).start()
def job_by_pid(self, pid):
job = first_or_default(lambda j: j.pid == pid, self.jobs.values())
return job
def event_loop(self):
while True:
with contextlib.suppress(InterruptedError):
for ev in self.kq.control(None, MAX_EVENTS):
self.logger.log(TRACE, 'New event: {0}'.format(ev))
if ev.filter == select.KQ_FILTER_PROC:
job = self.job_by_pid(ev.ident)
if job:
job.pid_event(ev)
continue
if ev.fflags & select.KQ_NOTE_CHILD:
if ev.fflags & select.KQ_NOTE_EXIT:
continue
pjob = self.job_by_pid(ev.data)
if not pjob:
self.untrack_pid(ev.ident)
continue
# Stop tracking at session ID boundary
try:
if pjob.pgid != os.getpgid(ev.ident):
self.untrack_pid(ev.ident)
continue
except ProcessLookupError:
continue
with self.lock:
job = Job(self)
job.load_anonymous(pjob, ev.ident)
self.jobs[job.id] = job
self.logger.info('Added job {0}'.format(
job.label))
def track_pid(self, pid):
ev = select.kevent(
pid, select.KQ_FILTER_PROC, select.KQ_EV_ADD | select.KQ_EV_ENABLE,
select.KQ_NOTE_EXIT | select.KQ_NOTE_EXEC | select.KQ_NOTE_FORK
| select.KQ_NOTE_TRACK, 0, 0)
self.kq.control([ev], 0)
def untrack_pid(self, pid):
ev = select.kevent(pid, select.KQ_FILTER_PROC, select.KQ_EV_DELETE, 0,
0, 0)
with contextlib.suppress(FileNotFoundError):
self.kq.control([ev], 0)
def emit_event(self, name, args):
self.server.broadcast_event(name, args)
if self.client and self.client.connected:
self.client.emit_event(name, args)
def connect(self):
while True:
try:
self.client.connect('unix:')
self.client.login_service('serviced')
self.client.enable_server(self.rpc)
self.client.resume_service('serviced.job')
self.client.resume_service('serviced.management')
return
except (OSError, RpcException) as err:
self.logger.warning(
'Cannot connect to dispatcher: {0}, retrying in 1 second'.
format(str(err)))
time.sleep(1)
def bootstrap(self):
def doit():
with self.lock:
job = Job(self)
job.load({
'Label': 'org.freenas.serviced.bootstrap',
'ProgramArguments': BOOTSTRAP_JOB,
'OneShot': True,
'RunAtLoad': True,
})
self.jobs[job.id] = job
Thread(target=doit).start()
def shutdown(self):
self.client.disconnect()
self.server.close()
sys.exit(0)
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-s',
metavar='SOCKET',
default=DEFAULT_SOCKET_ADDRESS,
help='Socket address to listen on')
args = parser.parse_args()
configure_logging('/var/log/serviced.log', 'DEBUG', file=True)
bsd.setproctitle('serviced')
self.logger.info('Started')
self.init_server(args.s)
self.bootstrap()
self.event_loop()
class Context(object):
def __init__(self):
self.logger = logging.getLogger('schedulerd')
self.config = None
self.datastore = None
self.configstore = None
self.client = None
self.scheduler = None
self.active_tasks = {}
def init_datastore(self):
try:
self.datastore = get_datastore(self.config)
except DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect()
self.client = Client()
self.client.on_error(on_error)
self.connect()
def init_scheduler(self):
store = FreeNASJobStore()
self.scheduler = BackgroundScheduler(jobstores={'default': store, 'temp': MemoryJobStore()}, timezone=pytz.utc)
self.scheduler.start()
def connect(self):
while True:
try:
self.client.connect('unix:')
self.client.login_service('schedulerd')
self.client.enable_server()
self.client.register_service('scheduler.management', ManagementService(self))
self.client.register_service('scheduler.debug', DebugService())
self.client.resume_service('scheduler.management')
self.client.resume_service('scheduler.debug')
return
except (OSError, RpcException) as err:
self.logger.warning('Cannot connect to dispatcher: {0}, retrying in 1 second'.format(str(err)))
time.sleep(1)
def run_job(self, *args, **kwargs):
tid = self.client.call_sync('task.submit_with_env', args[0], args[1:], {
'RUN_AS_USER': '******',
'CALENDAR_TASK_NAME': kwargs.get('name')
})
self.active_tasks[kwargs['id']] = tid
self.client.call_sync('task.wait', tid, timeout=None)
result = self.client.call_sync('task.status', tid)
if result['state'] != 'FINISHED':
try:
self.client.call_sync('alert.emit', {
'name': 'scheduler.task.failed',
'severity': 'CRITICAL',
'description': 'Task {0} has failed: {1}'.format(
kwargs.get('name', tid),
result['error']['message']
),
})
except RpcException as e:
self.logger.error('Failed to emit alert', exc_info=True)
del self.active_tasks[kwargs['id']]
self.datastore.insert('schedulerd.runs', {
'job_id': kwargs['id'],
'task_id': result['id']
})
def emit_event(self, name, params):
self.client.emit_event(name, params)
def checkin(self):
checkin()
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c', metavar='CONFIG', default=DEFAULT_CONFIGFILE, help='Middleware config file')
parser.add_argument('-f', action='store_true', default=False, help='Run in foreground')
args = parser.parse_args()
configure_logging('/var/log/schedulerd.log', 'DEBUG')
setproctitle('schedulerd')
self.config = args.c
self.init_datastore()
self.init_scheduler()
self.init_dispatcher()
self.checkin()
self.client.wait_forever()
class Main(object):
def __init__(self):
self.logger = logging.getLogger('alertd')
self.config = None
self.datastore = None
self.configstore = None
self.client = None
self.plugin_dirs = []
self.emitters = {}
def init_datastore(self):
try:
self.datastore = datastore.get_datastore()
except datastore.DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect()
self.client = Client()
self.client.on_error(on_error)
self.connect()
def init_reminder(self):
t = threading.Thread(target=self.reminder_thread)
t.daemon = True
t.start()
def parse_config(self, filename):
try:
f = open(filename, 'r')
self.config = json.load(f)
f.close()
except IOError as err:
self.logger.error('Cannot read config file: %s', err.message)
sys.exit(1)
except ValueError:
self.logger.error(
'Config file has unreadable format (not valid JSON)')
sys.exit(1)
self.plugin_dirs = self.config['alertd']['plugin-dirs']
def connect(self):
while True:
try:
self.client.connect('unix:')
self.client.login_service('alertd')
self.client.enable_server()
self.client.register_service('alertd.management',
ManagementService(self))
self.client.register_service('alertd.alert',
AlertService(self))
self.client.register_service('alertd.debug', DebugService())
self.client.resume_service('alertd.management')
self.client.resume_service('alertd.alert')
self.client.resume_service('alertd.debug')
return
except (OSError, RpcException) as err:
self.logger.warning(
'Cannot connect to dispatcher: {0}, retrying in 1 second'.
format(str(err)))
time.sleep(1)
def scan_plugins(self):
for i in self.plugin_dirs:
self.scan_plugin_dir(i)
def scan_plugin_dir(self, dir):
self.logger.debug('Scanning plugin directory %s', dir)
for f in os.listdir(dir):
name, ext = os.path.splitext(os.path.basename(f))
if ext != '.py':
continue
try:
plugin = imp.load_source(name, os.path.join(dir, f))
plugin._init(self)
except:
self.logger.error('Cannot initialize plugin {0}'.format(f),
exc_info=True)
def emit_alert(self, alert):
self.logger.debug('Emitting alert <id:{0}> (class {1})'.format(
alert['id'], alert['clazz']))
for i in self.datastore.query(
'alert.filters', ('or', [('clazz', '=', None),
('clazz', '=', alert['clazz'])])):
for pr in i.get('predicates', []):
if pr['operator'] not in operators_table:
continue
try:
if not operators_table[pr['operator']](
alert.properties.get(pr['property']), pr['value']):
break
except:
continue
else:
try:
emitter = self.emitters.get(i['emitter'])
if not emitter:
self.logger.warning(
'Invalid emitter {0} for alert filter {1}'.format(
i['emitter'], i['id']))
continue
self.logger.debug(
'Alert <id:{0}> matched filter {1}'.format(
alert['id'], i['id']))
if alert['send_count'] > 0:
if not alert['one_shot']:
emitter.emit_again(alert, i['parameters'])
else:
emitter.emit_first(alert, i['parameters'])
except BaseException as err:
# Failed to emit alert using alert emitter
# XXX: generate another alert about that
self.logger.error(
'Cannot emit alert <id:{0}> using {1}: {2}'.format(
alert['id'], i['emitter'], str(err)))
alert['send_count'] += 1
alert['last_emitted_at'] = datetime.utcnow()
self.datastore.update('alerts', alert['id'], alert)
def cancel_alert(self, alert):
self.logger.debug('Cancelling alert <id:{0}> (class {1})'.format(
alert['id'], alert['clazz']))
alert.update({'active': False, 'cancelled': datetime.utcnow()})
self.datastore.update('alerts', alert['id'], alert)
def register_emitter(self, name, cls):
self.emitters[name] = cls(self)
self.logger.info('Registered emitter {0} (class {1})'.format(
name, cls))
def reminder_thread(self):
while True:
time.sleep(REMINDER_SECONDS)
for i in self.datastore.query('alerts'):
if not i['active'] or i['dismissed']:
continue
last_emission = i.get('last_emitted_at') or i['created_at']
interval = REMINDER_SCHEDULE[i['severity']]
if not interval:
continue
if last_emission + timedelta(
seconds=interval) <= datetime.utcnow():
self.emit_alert(i)
def checkin(self):
checkin()
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c',
metavar='CONFIG',
default=DEFAULT_CONFIGFILE,
help='Middleware config file')
args = parser.parse_args()
configure_logging('alertd', 'DEBUG')
setproctitle('alertd')
self.config = args.c
self.parse_config(self.config)
self.init_datastore()
self.init_dispatcher()
self.scan_plugins()
self.init_reminder()
self.checkin()
self.client.wait_forever()
class Main:
def __init__(self):
self.config = None
self.client = None
self.datastore = None
self.configstore = None
self.rtsock_thread = None
self.logger = logging.getLogger('networkd')
def dhclient_pid(self, interface):
path = os.path.join('/var/run', 'dhclient.{0}.pid'.format(interface))
if not os.path.exists(path):
return None
try:
with open(path) as f:
pid = int(f.read().strip())
return pid
except (IOError, ValueError):
return None
def dhclient_running(self, interface):
pid = self.dhclient_pid(interface)
if not pid:
return False
try:
os.kill(pid, 0)
return True
except OSError:
return False
def configure_dhcp(self, interface):
# Check if dhclient is running
if self.dhclient_running(interface):
self.logger.info('Interface {0} already configured by DHCP'.format(interface))
return True
def unblock_signals():
signal.pthread_sigmask(signal.SIG_UNBLOCK, [signal.SIGTERM, signal.SIGINT])
ret = subprocess.call(['/sbin/dhclient', interface], close_fds=True, preexec_fn=unblock_signals)
return ret == 0
def interface_detached(self, name):
self.logger.warn('Interface {0} detached from the system'.format(name))
def interface_attached(self, name):
self.logger.warn('Interface {0} attached to the system'.format(name))
def using_dhcp_for_gateway(self):
for i in self.datastore.query('network.interfaces'):
if i.get('dhcp') and self.configstore.get('network.dhcp.assign_gateway'):
return True
return False
def scan_interfaces(self):
self.logger.info('Scanning available network interfaces...')
existing = []
# Add newly plugged NICs to DB
for i in list(netif.list_interfaces().values()):
existing.append(i.name)
# We want only physical NICs
if i.cloned:
continue
if not self.datastore.exists('network.interfaces', ('id', '=', i.name)):
self.logger.info('Found new interface {0} ({1})'.format(i.name, i.type.name))
self.datastore.insert('network.interfaces', {
'enabled': False,
'id': i.name,
'type': i.type.name,
'dhcp': False,
'noipv6': False,
'rtadv': False,
'mtu': None,
'media': None,
'aliases': []
})
# Remove unplugged NICs from DB
for i in self.datastore.query('network.interfaces', ('id', 'nin', existing), ('cloned', '=', False)):
self.datastore.delete('network.interfaces', i['id'])
def init_datastore(self):
try:
self.datastore = get_datastore(self.config)
except DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def connect(self, resume=False):
while True:
try:
self.client.connect('unix:')
self.client.login_service('networkd')
self.client.enable_server()
self.register_schemas()
self.client.register_service('networkd.configuration', ConfigurationService(self))
self.client.register_service('networkd.debug', DebugService())
if resume:
self.client.resume_service('networkd.configuration')
self.client.resume_service('networkd.debug')
return
except (OSError, RpcException) as err:
self.logger.warning('Cannot connect to dispatcher: {0}, retrying in 1 second'.format(str(err)))
time.sleep(1)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect(resume=True)
self.client = Client()
self.client.on_error(on_error)
self.connect()
def init_routing_socket(self):
self.rtsock_thread = RoutingSocketEventSource(self)
self.rtsock_thread.start()
def register_schemas(self):
self.client.register_schema('network-aggregation-protocols', {
'type': 'string',
'enum': list(netif.AggregationProtocol.__members__.keys())
})
self.client.register_schema('network-interface-flags', {
'type': 'array',
'items': {
'type': 'string',
'enum': list(netif.InterfaceFlags.__members__.keys())
}
})
self.client.register_schema('network-interface-capabilities', {
'type': 'array',
'items': {
'type': 'string',
'enum': list(netif.InterfaceCapability.__members__.keys())
}
})
self.client.register_schema('network-interface-mediaopts', {
'type': 'array',
'items': {
'type': 'string',
'enum': list(netif.InterfaceMediaOption.__members__.keys())
}
})
self.client.register_schema('network-interface-type', {
'type': 'string',
'enum': [
'LOOPBACK',
'ETHER',
'VLAN',
'BRIDGE',
'LAGG'
]
})
self.client.register_schema('network-interface-status', {
'type': 'object',
'properties': {
'name': {'type': 'string'},
'link_state': {
'type': 'string',
'enum': list(netif.InterfaceLinkState.__members__.keys())
},
'link_address': {'type': 'string'},
'mtu': {'type': 'integer'},
'media_type': {'type': 'string'},
'media_subtype': {'type': 'string'},
'media_options': {'$ref': 'network-interface-mediaopts'},
'capabilities': {'$ref': 'network-interface-capabilities'},
'flags': {'$ref': 'network-interface-flags'},
'aliases': {
'type': 'array',
'items': {'$ref': 'network-interface-alias'}
}
}
})
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c', metavar='CONFIG', default=DEFAULT_CONFIGFILE, help='Middleware config file')
args = parser.parse_args()
configure_logging('/var/log/networkd.log', 'DEBUG')
setproctitle.setproctitle('networkd')
self.config = args.c
self.init_datastore()
self.init_dispatcher()
self.scan_interfaces()
self.init_routing_socket()
self.client.resume_service('networkd.configuration')
self.client.resume_service('networkd.debug')
self.logger.info('Started')
self.client.wait_forever()
class Main(object):
def __init__(self):
self.config = None
self.client = None
self.datastore = None
self.configstore = None
self.logger = logging.getLogger('dsd')
def parse_config(self, filename):
try:
f = open(filename, 'r')
self.config = json.load(f)
f.close()
except IOError as err:
self.logger.error('Cannot read config file: %s', err.message)
sys.exit(1)
except ValueError as err:
self.logger.error('Config file has unreadable format (not valid JSON)')
sys.exit(1)
def init_datastore(self, resume=False):
try:
self.datastore = get_datastore(self.config['datastore']['driver'],
self.config['datastore']['dsn'])
except DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def connect(self, resume=False):
while True:
try:
self.client.connect('127.0.0.1')
self.client.login_service('dsd')
self.client.enable_server()
self.register_schemas()
self.client.register_service('dsd.configuration', DSDConfigurationService(self))
self.client.register_service('dsd.debug', DebugService())
if resume:
self.client.resume_service('dsd.configuration')
self.client.resume_service('dsd.debug')
return
except socket.error as err:
self.logger.warning('Cannot connect to dispatcher: {0}, retrying in 1 second'.format(str(err)))
time.sleep(1)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect(resume=True)
self.client = Client()
self.client.on_error(on_error)
self.connect()
def register_schemas(self):
# XXX do stuff here? To be determined ...
pass
def report_error(self, message, exception):
if not os.path.isdir('/var/tmp/crash'):
try:
os.mkdir('/var/tmp/crash')
except:
return
report = {
'timestamp': str(datetime.datetime.now()),
'type': 'exception',
'application': 'dsd',
'message': message,
'exception': str(exception),
'traceback': traceback.format_exc()
}
try:
with tempfile.NamedTemporaryFile(dir='/var/tmp/crash', suffix='.json', prefix='report-', delete=False) as f:
json.dump(report, f, indent=4)
except:
pass
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c', metavar='CONFIG', default=DEFAULT_CONFIGFILE, help='Middleware config file')
args = parser.parse_args()
configure_logging('/var/log/dsd.log', 'DEBUG')
setproctitle.setproctitle('dsd')
self.parse_config(args.c)
self.init_datastore()
self.init_dispatcher()
self.client.resume_service('dsd.configuration')
self.logger.info('Started')
self.client.wait_forever()
class Main(object):
def __init__(self):
self.logger = logging.getLogger('clid')
self.config = None
self.datastore = None
self.configstore = None
self.client = None
self.config = None
self.logger = logging.getLogger()
self.plugin_dirs = []
self.ml = None
self.context = None
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect()
self.client = Client()
self.client.on_error(on_error)
self.connect()
def init_cli(self):
self.logger.info('Initializing CLI instance')
self.context = Context()
self.context.connection = self.client
self.context.plugin_dirs = PLUGIN_DIRS
self.context.discover_plugins()
self.context.start_entity_subscribers()
self.context.login_plugins()
self.ml = MainLoop(self.context)
self.logger.info('CLI instance ready')
def connect(self):
while True:
try:
self.client.connect('unix:')
self.client.login_service('clid')
self.client.enable_server()
self.client.call_sync('management.enable_features', ['streaming_responses'])
self.client.register_service('clid.management', ManagementService(self))
self.client.register_service('clid.eval', EvalService(self))
self.client.register_service('clid.debug', DebugService())
self.client.resume_service('clid.management')
self.client.resume_service('clid.eval')
self.client.resume_service('clid.debug')
return
except (OSError, RpcException) as err:
self.logger.warning('Cannot connect to dispatcher: {0}, retrying in 1 second'.format(str(err)))
time.sleep(1)
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c', metavar='CONFIG', default=DEFAULT_CONFIGFILE, help='Middleware config file')
args = parser.parse_args()
self.config = args.c
configure_logging('clid', 'DEBUG')
setproctitle('clid')
self.init_dispatcher()
self.init_cli()
self.client.wait_forever()
class Main(object):
def __init__(self):
self.logger = logging.getLogger('etcd')
self.root = None
self.configfile = None
self.config = None
self.datastore = None
self.configstore = None
self.client = None
self.plugin_dirs = []
self.renderers = {}
self.managed_files = {}
def init_datastore(self):
try:
self.datastore = datastore.get_datastore(self.configfile)
except datastore.DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect()
self.client = Client()
self.client.on_error(on_error)
self.connect()
def connect(self):
while True:
try:
self.client.connect('unix:')
self.client.login_service('etcd')
self.client.enable_server()
self.client.register_service('etcd.generation', FileGenerationService(self))
self.client.register_service('etcd.management', ManagementService(self))
self.client.register_service('etcd.debug', DebugService())
self.client.resume_service('etcd.generation')
self.client.resume_service('etcd.management')
self.client.resume_service('etcd.debug')
return
except (OSError, RpcException) as err:
self.logger.warning('Cannot connect to dispatcher: {0}, retrying in 1 second'.format(str(err)))
time.sleep(1)
def init_renderers(self):
for name, impl in TEMPLATE_RENDERERS.items():
self.renderers[name] = impl(self)
def parse_config(self, filename):
try:
f = open(filename, 'r')
self.config = json.load(f)
f.close()
except IOError as err:
self.logger.error('Cannot read config file: %s', err.message)
sys.exit(1)
except ValueError:
self.logger.error('Config file has unreadable format (not valid JSON)')
sys.exit(1)
self.plugin_dirs = self.config['etcd']['plugin-dirs']
def scan_plugins(self):
for i in self.plugin_dirs:
self.scan_plugin_dir(i)
def scan_plugin_dir(self, dir):
self.logger.debug('Scanning plugin directory %s', dir)
for root, dirs, files in os.walk(dir):
for name in files:
abspath = os.path.join(root, name)
path = os.path.relpath(abspath, dir)
name, ext = os.path.splitext(path)
if name in self.managed_files.keys():
continue
if ext in TEMPLATE_RENDERERS.keys():
self.managed_files[name] = abspath
self.logger.info('Adding managed file %s [%s]', name, ext)
def generate_file(self, file_path):
if file_path not in self.managed_files.keys():
raise RpcException(errno.ENOENT, 'No such file')
template_path = self.managed_files[file_path]
name, ext = os.path.splitext(template_path)
if ext not in self.renderers.keys():
raise RuntimeError("Can't find renderer for {0}".format(file_path))
renderer = self.renderers[ext]
try:
return renderer.render_template(template_path)
except Exception as e:
self.logger.warn('Cannot generate file {0}: {1}'.format(file_path, str(e)))
return "# FILE GENERATION FAILED: {0}\n".format(str(e))
def emit_event(self, name, params):
self.client.emit_event(name, params)
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c', metavar='CONFIG', default=DEFAULT_CONFIGFILE, help='Middleware config file')
parser.add_argument('-f', action='store_true', default=False, help='Run in foreground')
parser.add_argument('mountpoint', metavar='MOUNTPOINT', default='/etc', help='/etc mount point')
args = parser.parse_args()
configure_logging('/var/log/etcd.log', 'DEBUG')
setproctitle.setproctitle('etcd')
self.root = args.mountpoint
self.configfile = args.c
self.parse_config(args.c)
self.scan_plugins()
self.init_renderers()
self.init_datastore()
self.init_dispatcher()
self.client.wait_forever()
class Main(object):
def __init__(self):
self.logger = logging.getLogger('dscached')
self.config = None
self.datastore = None
self.configstore = None
self.client = None
self.plugin_dirs = []
self.plugins = {}
def init_datastore(self):
try:
self.datastore = datastore.get_datastore()
except datastore.DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect()
self.client = Client()
self.client.on_error(on_error)
self.connect()
def parse_config(self, filename):
try:
with open(filename, 'r') as f:
self.config = json.load(f)
except IOError as err:
self.logger.error('Cannot read config file: %s', err.message)
sys.exit(1)
except ValueError:
self.logger.error('Config file has unreadable format (not valid JSON)')
sys.exit(1)
self.plugin_dirs = self.config['dscached']['plugin-dirs']
def connect(self):
while True:
try:
self.client.connect('unix:')
self.client.login_service('dscached')
self.client.enable_server()
self.client.register_service('dscached.account', AccountService(self))
self.client.register_service('dscached.group', GroupService(self))
self.client.register_service('dscached.debug', DebugService())
self.client.resume_service('dscached.account')
self.client.resume_service('dscached.group')
self.client.resume_service('dscached.debug')
return
except (OSError, RpcException) as err:
self.logger.warning('Cannot connect to dispatcher: {0}, retrying in 1 second'.format(str(err)))
time.sleep(1)
def scan_plugins(self):
for i in self.plugin_dirs:
self.scan_plugin_dir(i)
def scan_plugin_dir(self, dir):
self.logger.debug('Scanning plugin directory %s', dir)
for f in os.listdir(dir):
name, ext = os.path.splitext(os.path.basename(f))
if ext != '.py':
continue
try:
plugin = imp.load_source(name, os.path.join(dir, f))
plugin._init(self)
except:
self.logger.error('Cannot initialize plugin {0}'.format(f), exc_info=True)
def register_plugin(self, name, cls):
self.plugins[name] = cls(self)
self.logger.info('Registered plugin {0} (class {1})'.format(name, cls))
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c', metavar='CONFIG', default=DEFAULT_CONFIGFILE, help='Middleware config file')
args = parser.parse_args()
configure_logging('/var/log/dscached.log', 'DEBUG')
setproctitle.setproctitle('dscached')
self.config = args.c
self.parse_config(self.config)
self.init_datastore()
self.init_dispatcher()
self.scan_plugins()
self.client.wait_forever()
class Main(object):
def __init__(self):
self.logger = logging.getLogger('dscached')
self.config = None
self.datastore = None
self.configstore = None
self.rpc = RpcContext()
self.rpc.streaming_enabled = True
self.rpc.streaming_burst = 16
self.client = None
self.server = None
self.plugin_dirs = []
self.plugins = {}
self.directories = []
self.users_cache = TTLCacheStore()
self.groups_cache = TTLCacheStore()
self.hosts_cache = TTLCacheStore()
self.cache_ttl = 7200
self.search_order = []
self.cache_enumerations = True
self.cache_lookups = True
self.rpc.register_service_instance('dscached.account', AccountService(self))
self.rpc.register_service_instance('dscached.group', GroupService(self))
self.rpc.register_service_instance('dscached.host', HostService(self))
self.rpc.register_service_instance('dscached.management', ManagementService(self))
self.rpc.register_service_instance('dscached.debug', DebugService())
def get_enabled_directories(self):
return list(filter(None, (self.get_directory_by_name(n) for n in self.get_search_order())))
def get_search_order(self):
return ['local', 'system'] + self.search_order
def get_directory_by_domain(self, domain_name):
return first_or_default(lambda d: d.domain_name == domain_name, self.directories)
def get_directory_by_name(self, name):
return first_or_default(lambda d: d.name == name, self.directories)
def get_directory_for_id(self, uid=None, gid=None):
if uid is not None:
if uid == 0:
# Special case for root user
return first_or_default(lambda d: d.plugin_type == 'local', self.directories)
return first_or_default(
lambda d: d.max_uid and d.max_uid >= uid >= d.min_uid,
self.directories
)
if gid is not None:
if gid == 0:
# Special case for wheel group
return first_or_default(lambda d: d.plugin_type == 'local', self.directories)
return first_or_default(
lambda d: d.max_gid and d.max_gid >= gid >= d.min_gid,
self.directories
)
def init_datastore(self):
try:
self.datastore = datastore.get_datastore()
except datastore.DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect()
self.client = Client()
self.client.on_error(on_error)
self.connect()
def init_server(self, address):
self.server = Server(self)
self.server.rpc = self.rpc
self.server.start(address)
thread = Thread(target=self.server.serve_forever)
thread.name = 'ServerThread'
thread.daemon = True
thread.start()
def parse_config(self, filename):
try:
with open(filename, 'r') as f:
self.config = json.load(f)
except IOError as err:
self.logger.error('Cannot read config file: %s', err.message)
sys.exit(1)
except ValueError:
self.logger.error('Config file has unreadable format (not valid JSON)')
sys.exit(1)
self.plugin_dirs = self.config['dscached']['plugin-dirs']
def connect(self):
while True:
try:
self.client.connect('unix:')
self.client.login_service('dscached')
self.client.enable_server(self.rpc)
self.client.resume_service('dscached.account')
self.client.resume_service('dscached.group')
self.client.resume_service('dscached.host')
self.client.resume_service('dscached.management')
self.client.resume_service('dscached.debug')
return
except (OSError, RpcException) as err:
self.logger.warning('Cannot connect to dispatcher: {0}, retrying in 1 second'.format(str(err)))
time.sleep(1)
def scan_plugins(self):
for i in self.plugin_dirs:
self.scan_plugin_dir(i)
def scan_plugin_dir(self, dir):
self.logger.debug('Scanning plugin directory %s', dir)
for f in os.listdir(dir):
name, ext = os.path.splitext(os.path.basename(f))
if ext != '.py':
continue
try:
plugin = imp.load_source(name, os.path.join(dir, f))
plugin._init(self)
except:
self.logger.error('Cannot initialize plugin {0}'.format(f), exc_info=True)
def register_plugin(self, name, cls):
self.plugins[name] = cls
self.logger.info('Registered plugin {0} (class {1})'.format(name, cls))
def register_schema(self, name, schema):
self.client.register_schema(name, schema)
def init_directories(self):
for i in self.datastore.query('directories'):
try:
directory = Directory(self, i)
directory.configure()
self.directories.append(directory)
except BaseException as err:
continue
def load_config(self):
self.search_order = self.configstore.get('directory.search_order')
self.cache_ttl = self.configstore.get('directory.cache_ttl')
self.cache_enumerations = self.configstore.get('directory.cache_enumerations')
self.cache_lookups = self.configstore.get('directory.cache_lookups')
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c', metavar='CONFIG', default=DEFAULT_CONFIGFILE, help='Middleware config file')
parser.add_argument('-s', metavar='SOCKET', default=DEFAULT_SOCKET_ADDRESS, help='Socket address to listen on')
args = parser.parse_args()
configure_logging('/var/log/dscached.log', 'DEBUG')
setproctitle.setproctitle('dscached')
self.config = args.c
self.parse_config(self.config)
self.init_datastore()
self.init_dispatcher()
self.load_config()
self.init_server(args.s)
self.scan_plugins()
self.init_directories()
self.client.wait_forever()
class Context(object):
def __init__(self):
self.logger = logging.getLogger('schedulerd')
self.config = None
self.datastore = None
self.configstore = None
self.client = None
self.scheduler = None
self.active_tasks = {}
def init_datastore(self):
try:
self.datastore = get_datastore(self.config)
except DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect()
self.client = Client()
self.client.on_error(on_error)
self.connect()
def init_scheduler(self):
store = MongoDBJobStore(database='freenas',
collection='calendar_tasks',
client=self.datastore.client)
self.scheduler = BackgroundScheduler(jobstores={'default': store},
timezone=pytz.utc)
self.scheduler.start()
def connect(self):
while True:
try:
self.client.connect('unix:')
self.client.login_service('schedulerd')
self.client.enable_server()
self.client.register_service('scheduler.management',
ManagementService(self))
self.client.register_service('scheduler.debug', DebugService())
self.client.resume_service('scheduler.management')
self.client.resume_service('scheduler.debug')
return
except (OSError, RpcException) as err:
self.logger.warning(
'Cannot connect to dispatcher: {0}, retrying in 1 second'.
format(str(err)))
time.sleep(1)
def run_job(self, *args, **kwargs):
tid = self.client.call_sync(
'task.submit_with_env', args[0], args[1:], {
'RUN_AS_USER': '******',
'CALENDAR_TASK_NAME': kwargs.get('name')
})
self.active_tasks[kwargs['id']] = tid
self.client.call_sync('task.wait', tid, timeout=None)
result = self.client.call_sync('task.status', tid)
if result['state'] != 'FINISHED':
try:
self.client.call_sync(
'alert.emit', {
'name':
'scheduler.task.failed',
'severity':
'CRITICAL',
'description':
'Task {0} has failed: {1}'.format(
kwargs.get('name', tid),
result['error']['message']),
})
except RpcException as e:
self.logger.error('Failed to emit alert', exc_info=True)
del self.active_tasks[kwargs['id']]
self.datastore.insert('schedulerd.runs', {
'job_id': kwargs['id'],
'task_id': result['id']
})
def emit_event(self, name, params):
self.client.emit_event(name, params)
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c',
metavar='CONFIG',
default=DEFAULT_CONFIGFILE,
help='Middleware config file')
parser.add_argument('-f',
action='store_true',
default=False,
help='Run in foreground')
args = parser.parse_args()
configure_logging('/var/log/schedulerd.log', 'DEBUG')
setproctitle.setproctitle('schedulerd')
self.config = args.c
self.init_datastore()
self.init_scheduler()
self.init_dispatcher()
self.client.wait_forever()
class Main(object):
def __init__(self):
self.logger = logging.getLogger('neighbord')
self.config = None
self.datastore = None
self.configstore = None
self.client = None
self.config = None
self.logger = logging.getLogger()
self.plugin_dirs = []
self.plugins = {}
def parse_config(self, filename):
try:
with open(filename, 'r') as f:
self.config = json.load(f)
except IOError as err:
self.logger.error('Cannot read config file: %s', err.message)
sys.exit(1)
except ValueError:
self.logger.error(
'Config file has unreadable format (not valid JSON)')
sys.exit(1)
self.plugin_dirs = self.config['neighbord']['plugin-dirs']
def init_datastore(self):
try:
self.datastore = datastore.get_datastore()
except datastore.DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect()
self.client = Client()
self.client.on_error(on_error)
self.connect()
def scan_plugins(self):
for i in self.plugin_dirs:
self.scan_plugin_dir(i)
def scan_plugin_dir(self, dir):
self.logger.debug('Scanning plugin directory %s', dir)
for f in os.listdir(dir):
name, ext = os.path.splitext(os.path.basename(f))
if ext != '.py':
continue
try:
plugin = load_module_from_file(name, os.path.join(dir, f))
plugin._init(self)
except:
self.logger.error('Cannot initialize plugin {0}'.format(f),
exc_info=True)
def register_plugin(self, name, cls):
self.plugins[name] = cls(self)
self.logger.info('Registered plugin {0} (class {1})'.format(name, cls))
def register_service(self, name, regtype, port, properties=None):
for plugin in self.plugins.values():
plugin.register(regtype, name, port, properties)
def register(self):
try:
hostname = socket.gethostname()
general = self.client.call_sync('system.general.get_config')
properties = {
'version': self.client.call_sync('system.info.version'),
'description': general['description'],
'tags': ','.join(general['tags'])
}
self.register_service(hostname, 'freenas', 80, properties)
self.register_service(hostname, 'http', 80)
self.register_service(hostname, 'ssh', 22)
self.register_service(hostname, 'sftp-ssh', 22)
except BaseException as err:
self.logger.error('Failed to register services: {0}'.format(
str(err)))
def connect(self):
while True:
try:
self.client.connect('unix:')
self.client.login_service('neighbord')
self.client.enable_server()
self.client.register_service('neighbord.management',
ManagementService(self))
self.client.register_service('neighbord.discovery',
DiscoveryService(self))
self.client.register_service('neighbord.debug', DebugService())
self.client.resume_service('neighbord.management')
self.client.resume_service('neighbord.discovery')
self.client.resume_service('neighbord.debug')
return
except (OSError, RpcException) as err:
self.logger.warning(
'Cannot connect to dispatcher: {0}, retrying in 1 second'.
format(str(err)))
time.sleep(1)
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c',
metavar='CONFIG',
default=DEFAULT_CONFIGFILE,
help='Middleware config file')
args = parser.parse_args()
self.config = args.c
configure_logging('/var/log/neighbord.log', 'DEBUG')
setproctitle.setproctitle('neighbord')
self.parse_config(self.config)
self.init_datastore()
self.init_dispatcher()
self.scan_plugins()
self.register()
self.client.wait_forever()
class Context(object):
def __init__(self):
self.server = None
self.client = None
self.jobs = {}
self.provides = set()
self.lock = RLock()
self.kq = select.kqueue()
self.devnull = os.open('/dev/null', os.O_RDWR)
self.logger = logging.getLogger('Context')
self.rpc = RpcContext()
self.rpc.register_service_instance('serviced.management', ManagementService(self))
self.rpc.register_service_instance('serviced.job', JobService(self))
def init_dispatcher(self):
if self.client and self.client.connected:
return
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect()
self.client = Client()
self.client.on_error(on_error)
self.connect()
def init_server(self, address):
self.server = Server(self)
self.server.rpc = self.rpc
self.server.streaming = True
self.server.start(address, transport_options={'permissions': 0o777})
thread = Thread(target=self.server.serve_forever)
thread.name = 'ServerThread'
thread.daemon = True
thread.start()
def provide(self, targets):
def doit():
self.logger.debug('Adding dependency targets: {0}'.format(', '.join(targets)))
with self.lock:
self.provides |= targets
for job in list(self.jobs.values()):
if job.state == JobState.STOPPED and job.requires <= self.provides:
job.start()
if targets:
Timer(2, doit).start()
def job_by_pid(self, pid):
job = first_or_default(lambda j: j.pid == pid, self.jobs.values())
return job
def event_loop(self):
while True:
with contextlib.suppress(InterruptedError):
for ev in self.kq.control(None, MAX_EVENTS):
self.logger.log(TRACE, 'New event: {0}'.format(ev))
if ev.filter == select.KQ_FILTER_PROC:
job = self.job_by_pid(ev.ident)
if job:
job.pid_event(ev)
continue
if ev.fflags & select.KQ_NOTE_CHILD:
if ev.fflags & select.KQ_NOTE_EXIT:
continue
pjob = self.job_by_pid(ev.data)
if not pjob:
self.untrack_pid(ev.ident)
continue
# Stop tracking at session ID boundary
try:
if pjob.pgid != os.getpgid(ev.ident):
self.untrack_pid(ev.ident)
continue
except ProcessLookupError:
continue
with self.lock:
job = Job(self)
job.load_anonymous(pjob, ev.ident)
self.jobs[job.id] = job
self.logger.info('Added job {0}'.format(job.label))
def track_pid(self, pid):
ev = select.kevent(
pid,
select.KQ_FILTER_PROC,
select.KQ_EV_ADD | select.KQ_EV_ENABLE,
select.KQ_NOTE_EXIT | select.KQ_NOTE_EXEC | select.KQ_NOTE_FORK | select.KQ_NOTE_TRACK,
0, 0
)
self.kq.control([ev], 0)
def untrack_pid(self, pid):
ev = select.kevent(
pid,
select.KQ_FILTER_PROC,
select.KQ_EV_DELETE,
0, 0, 0
)
with contextlib.suppress(FileNotFoundError):
self.kq.control([ev], 0)
def emit_event(self, name, args):
self.server.broadcast_event(name, args)
if self.client and self.client.connected:
self.client.emit_event(name, args)
def connect(self):
while True:
try:
self.client.connect('unix:')
self.client.login_service('serviced')
self.client.enable_server(self.rpc)
self.client.resume_service('serviced.job')
self.client.resume_service('serviced.management')
return
except (OSError, RpcException) as err:
self.logger.warning('Cannot connect to dispatcher: {0}, retrying in 1 second'.format(str(err)))
time.sleep(1)
def bootstrap(self):
def doit():
with self.lock:
job = Job(self)
job.load({
'Label': 'org.freenas.serviced.bootstrap',
'ProgramArguments': BOOTSTRAP_JOB,
'OneShot': True,
'RunAtLoad': True,
})
self.jobs[job.id] = job
Thread(target=doit).start()
def shutdown(self):
self.client.disconnect()
self.server.close()
sys.exit(0)
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-s', metavar='SOCKET', default=DEFAULT_SOCKET_ADDRESS, help='Socket address to listen on')
args = parser.parse_args()
configure_logging('/var/log/serviced.log', 'DEBUG', file=True)
bsd.setproctitle('serviced')
self.logger.info('Started')
self.init_server(args.s)
self.bootstrap()
self.event_loop()
class Context(object):
def __init__(self):
self.logger = logging.getLogger('schedulerd')
self.config = None
self.datastore = None
self.configstore = None
self.client = None
self.scheduler = None
self.active_tasks = {}
def init_datastore(self):
try:
self.datastore = get_datastore(self.config)
except DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect()
self.client = Client()
self.client.on_error(on_error)
self.connect()
def init_scheduler(self):
store = MongoDBJobStore(database='freenas', collection='calendar_tasks', client=self.datastore.client)
self.scheduler = BackgroundScheduler(jobstores={'default': store}, timezone=pytz.utc)
self.scheduler.start()
def register_schemas(self):
self.client.register_schema('calendar-task', {
'type': 'object',
'additionalProperties': False,
'properties': {
'id': {'type': 'string'},
'name': {'type': 'string'},
'args': {'type': 'array'},
'description': {'type': 'string'},
'enabled': {'type': 'boolean'},
'hidden': {'type': 'boolean'},
'protected': {'type': 'boolean'},
'status': {'$ref': 'calendar-task-status'},
'schedule': {
'type': 'object',
'additionalProperties': False,
'properties': {
'coalesce': {'type': ['boolean', 'integer', 'null']},
'year': {'type': ['string', 'integer', 'null']},
'month': {'type': ['string', 'integer', 'null']},
'day': {'type': ['string', 'integer', 'null']},
'week': {'type': ['string', 'integer', 'null']},
'day_of_week': {'type': ['string', 'integer', 'null']},
'hour': {'type': ['string', 'integer', 'null']},
'minute': {'type': ['string', 'integer', 'null']},
'second': {'type': ['string', 'integer', 'null']},
'timezone': {'type': ['string', 'null']}
}
}
}
})
self.client.register_schema('calendar-task-status', {
'type': 'object',
'properties': {
'next_run_time': {'type': 'string'},
'last_run_status': {'type': 'string'},
'current_run_status': {'type': ['string', 'null']},
'current_run_progress': {'type': ['object', 'null']}
}
})
def connect(self):
while True:
try:
self.client.connect('unix:')
self.client.login_service('schedulerd')
self.client.enable_server()
self.client.register_service('scheduler.management', ManagementService(self))
self.client.register_service('scheduler.debug', DebugService())
self.client.resume_service('scheduler.management')
self.client.resume_service('scheduler.debug')
return
except (OSError, RpcException) as err:
self.logger.warning('Cannot connect to dispatcher: {0}, retrying in 1 second'.format(str(err)))
time.sleep(1)
def run_job(self, *args, **kwargs):
tid = self.client.submit_task(*args)
self.active_tasks[kwargs['id']] = tid
self.client.call_sync('task.wait', tid, timeout=None)
result = self.client.call_sync('task.status', tid)
if result['state'] != 'FINISHED':
try:
self.client.call_sync('alerts.emit', {
'name': 'scheduler.task.failed',
'severity': 'CRITICAL',
'description': 'Task {0} has failed: {1}'.format(kwargs['name'], result['error']['message']),
})
except RpcException as e:
self.logger.error('Failed to emit alert', exc_info=True)
del self.active_tasks[kwargs['id']]
self.datastore.insert('schedulerd.runs', {
'job_id': kwargs['id'],
'task_id': result['id']
})
def emit_event(self, name, params):
self.client.emit_event(name, params)
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c', metavar='CONFIG', default=DEFAULT_CONFIGFILE, help='Middleware config file')
parser.add_argument('-f', action='store_true', default=False, help='Run in foreground')
args = parser.parse_args()
configure_logging('/var/log/schedulerd.log', 'DEBUG')
setproctitle.setproctitle('schedulerd')
self.config = args.c
self.init_datastore()
self.init_scheduler()
self.init_dispatcher()
self.register_schemas()
self.client.wait_forever()
class Main(object):
def __init__(self):
self.config = None
self.client = None
self.datastore = None
self.configstore = None
self.rtsock_thread = None
self.dhcp_clients = {}
self.dhcp_lock = threading.RLock()
self.logger = logging.getLogger('networkd')
self.default_interface = None
self.cv = Condition()
def dhclient_pid(self, interface):
path = os.path.join('/var/run', 'dhclient.{0}.pid'.format(interface))
if not os.path.exists(path):
return None
try:
with open(path) as f:
pid = int(f.read().strip())
return pid
except (IOError, ValueError):
return None
def dhclient_running(self, interface):
pid = self.dhclient_pid(interface)
if not pid:
return False
try:
os.kill(pid, 0)
return True
except OSError:
return False
def configure_dhcp(self, interface, block=False, timeout=None):
if interface in self.dhcp_clients:
self.logger.info('Interface {0} already configured by DHCP'.format(interface))
return True
def bind(old_lease, lease):
self.logger.info('{0} DHCP lease on {1} from {2}, valid for {3} seconds'.format(
'Renewed' if old_lease else 'Acquired',
interface,
client.server_address,
lease.lifetime,
interface
))
if old_lease is None or lease.client_ip != old_lease.client_ip:
self.logger.info('Assigning IP address {0} to interface {1}'.format(lease.client_ip, interface))
alias = lease.client_interface
iface = netif.get_interface(interface)
if old_lease:
try:
addr = first_or_default(lambda a: a.address == old_lease.client_ip, iface.addresses)
if addr:
iface.remove_address(addr)
except OSError as err:
self.logger.error('Cannot remove alias {0}: {1}'.format(old_lease.client_ip, err.strerror))
try:
iface.add_address(netif.InterfaceAddress(netif.AddressFamily.INET, alias))
except OSError as err:
self.logger.error('Cannot add alias to {0}: {1}'.format(interface, err.strerror))
if lease.router and self.configstore.get('network.dhcp.assign_gateway'):
try:
rtable = netif.RoutingTable()
newroute = default_route(lease.router)
if rtable.default_route_ipv4 != newroute:
if rtable.default_route_ipv4:
self.logger.info('DHCP default route changed from {0} to {1}'.format(
rtable.default_route_ipv4,
newroute
))
rtable.delete(rtable.default_route_ipv4)
rtable.add(default_route(lease.router))
else:
self.logger.info('Adding default route via {0}'.format(lease.router))
rtable.add(default_route(lease.router))
except OSError as err:
self.logger.error('Cannot configure default route: {0}'.format(err.strerror))
if lease.dns_addresses and self.configstore.get('network.dhcp.assign_dns'):
inp = []
addrs = []
proc = subprocess.Popen(
['/sbin/resolvconf', '-a', interface],
stdout=subprocess.PIPE,
stdin=subprocess.PIPE
)
for i in lease.dns_addresses:
# Filter out bogus DNS server addresses
if str(i) in ('127.0.0.1', '0.0.0.0', '255.255.255.255'):
continue
inp.append('nameserver {0}'.format(i))
addrs.append(i)
if lease.domain_name:
inp.append('search {0}'.format(lease.domain_name))
proc.communicate('\n'.join(inp).encode('ascii'))
proc.wait()
self.client.emit_event('network.dns.configured', {
'addresses': addrs,
})
self.logger.info('Updated DNS configuration')
else:
subprocess.call(['/sbin/resolvconf', '-d', interface])
self.client.emit_event('network.dns.configured', {
'addresses': [],
})
self.logger.info('Deleted DNS configuration')
def reject(reason):
self.logger.info('DHCP request rejected on {0}: {1}'.format(interface, reason))
self.deconfigure_dhcp(interface)
if not block:
t = threading.Timer(60, self.configure_dhcp, args=(interface,))
t.start()
def unbind(lease, reason):
reasons = {
dhcp.client.UnbindReason.EXPIRE: 'expired',
dhcp.client.UnbindReason.REVOKE: 'revoked'
}
self.logger.info('DHCP lease on {0}: {1}'.format(interface, reasons.get(reason, 'revoked')))
def state_change(state):
self.client.emit_event('network.interface.changed', {
'operation': 'update',
'ids': [interface]
})
self.client.emit_event('network.changed', {
'operation': 'update'
})
with self.dhcp_lock:
client = dhcp.client.Client(interface, lambda: socket.gethostname().split('.')[0])
client.on_bind = bind
client.on_unbind = unbind
client.on_reject = reject
client.on_state_change = state_change
client.start()
self.dhcp_clients[interface] = client
if block:
ret = client.wait_for_bind(timeout)
if ret is None:
client.stop()
del self.dhcp_clients[interface]
return ret is not None
return True
def deconfigure_dhcp(self, interface):
with self.dhcp_lock:
client = self.dhcp_clients[interface]
client.release()
client.stop()
del self.dhcp_clients[interface]
def renew_dhcp(self, interface):
if interface not in self.dhcp_clients:
raise RpcException(errno.ENXIO, 'Interface {0} is not configured for DHCP'.format(interface))
if not self.dhcp_clients[interface].lease:
raise RpcException(errno.ENOENT, 'Cannot renew without a lease')
self.dhcp_clients[interface].request(renew=True, timeout=30)
def interface_detached(self, name):
self.logger.warn('Interface {0} detached from the system'.format(name))
def interface_attached(self, name):
self.logger.warn('Interface {0} attached to the system'.format(name))
def using_dhcp_for_gateway(self):
for i in self.datastore.query('network.interfaces'):
if i.get('dhcp') and self.configstore.get('network.dhcp.assign_gateway'):
return True
return False
def scan_interfaces(self):
self.logger.info('Scanning available network interfaces...')
existing = []
# Add newly plugged NICs to DB
for i in list(netif.list_interfaces().values()):
existing.append(i.name)
# We want only physical NICs
if i.cloned:
continue
if i.name in ('mgmt0', 'nat0'):
continue
if i.name.startswith(('tap', 'brg')):
continue
if not self.datastore.exists('network.interfaces', ('id', '=', i.name)):
self.logger.info('Found new interface {0} ({1})'.format(i.name, i.type.name))
self.datastore.insert('network.interfaces', {
'enabled': False,
'id': i.name,
'name': None,
'cloned': False,
'type': i.type.name,
'dhcp': False,
'noipv6': False,
'rtadv': False,
'mtu': i.mtu,
'media': None,
'mediaopts': [],
'aliases': [],
'capabilities': {
'add': [],
'del': []
}
})
# Remove unplugged NICs from DB
for i in self.datastore.query('network.interfaces', ('id', 'nin', existing), ('cloned', '=', False)):
self.datastore.delete('network.interfaces', i['id'])
def init_datastore(self):
try:
self.datastore = get_datastore(self.config)
except DatastoreException as err:
self.logger.error('Cannot initialize datastore: %s', str(err))
sys.exit(1)
self.configstore = ConfigStore(self.datastore)
def connect(self, resume=False):
while True:
try:
self.client.connect('unix:')
self.client.login_service('networkd')
self.client.enable_server()
self.register_schemas()
self.client.register_service('networkd.configuration', ConfigurationService(self))
self.client.register_service('networkd.debug', DebugService())
if resume:
self.client.resume_service('networkd.configuration')
self.client.resume_service('networkd.debug')
return
except (OSError, RpcException) as err:
self.logger.warning('Cannot connect to dispatcher: {0}, retrying in 1 second'.format(str(err)))
time.sleep(1)
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect(resume=True)
self.client = Client()
self.client.on_error(on_error)
self.connect()
def init_routing_socket(self):
self.rtsock_thread = RoutingSocketEventSource(self)
self.rtsock_thread.start()
def register_schemas(self):
self.client.register_schema('network-aggregation-protocols', {
'type': 'string',
'enum': list(netif.AggregationProtocol.__members__.keys())
})
self.client.register_schema('network-lagg-port-flags', {
'type': 'array',
'items': {'$ref': 'network-lagg-port-flags-items'}
})
self.client.register_schema('network-lagg-port-flags-items', {
'type': 'string',
'enum': list(netif.LaggPortFlags.__members__.keys())
})
self.client.register_schema('network-interface-flags', {
'type': 'array',
'items': {'$ref': 'network-interface-flags-items'}
})
self.client.register_schema('network-interface-flags-items', {
'type': 'string',
'enum': list(netif.InterfaceFlags.__members__.keys())
})
self.client.register_schema('network-interface-capabilities', {
'type': 'array',
'items': {'$ref': 'network-interface-capabilities-items'}
})
self.client.register_schema('network-interface-capabilities-items', {
'type': 'string',
'enum': list(netif.InterfaceCapability.__members__.keys())
})
self.client.register_schema('network-interface-mediaopts', {
'type': 'array',
'items': {'$ref': 'network-interface-mediaopts-items'}
})
self.client.register_schema('network-interface-mediaopts-items', {
'type': 'string',
'enum': list(netif.InterfaceMediaOption.__members__.keys())
})
self.client.register_schema('network-interface-nd6-flag', {
'type': 'array',
'items': {'$ref': 'network-interface-nd6-flag-items'}
})
self.client.register_schema('network-interface-nd6-flag-items', {
'type': 'string',
'enum': list(netif.NeighborDiscoveryFlags.__members__.keys())
})
self.client.register_schema('network-interface-type', {
'type': 'string',
'enum': [
'LOOPBACK',
'ETHER',
'VLAN',
'BRIDGE',
'LAGG'
]
})
self.client.register_schema('network-interface-dhcp-state', {
'type': 'string',
'enum': [
'INIT',
'SELECTING',
'REQUESTING',
'INIT_REBOOT',
'REBOOTING',
'BOUND',
'RENEWING',
'REBINDING'
]
})
self.client.register_schema('network-interface-status', {
'type': 'object',
'properties': {
'name': {'type': 'string'},
'link_state': {'$ref': 'network-interface-status-linkstate'},
'link_address': {'type': 'string'},
'mtu': {'type': 'integer'},
'media_type': {'type': 'string'},
'media_subtype': {'type': 'string'},
'active_media_type': {'type': 'string'},
'active_media_subtype': {'type': 'string'},
'media_options': {'$ref': 'network-interface-mediaopts'},
'cloned': {'type': 'boolean'},
'capabilities': {'$ref': 'network-interface-capabilities'},
'flags': {'$ref': 'network-interface-flags'},
'dhcp': {
'type': 'object',
'properties': {
'state': {'$ref': 'network-interface-dhcp-state'},
'server_address': {'type': 'string'},
'server_name': {'type': 'string'},
'lease_starts_at': {'type': 'datetime'},
'lease_ends_at': {'type': 'datetime'}
}
},
'aliases': {
'type': 'array',
'items': {'$ref': 'network-interface-alias'}
},
'nd6_flags': {
'type': 'array',
'items': {'$ref': 'network-interface-nd6-flag'}
},
'ports': {
'oneOf': [
{'type': 'null'},
{
'type': 'array',
'members': {
'type': 'object',
'properties': {
'name': {'type': 'string'},
'flags': {'$ref': 'network-lagg-port-flags'}
}
}
}
]
},
'members': {
'oneOf': [
{'type': 'null'},
{
'type': 'array',
'members': {'type': 'string'}
}
]
},
'parent': {'type': ['string', 'null']},
'tag': {'type': ['integer', 'null']}
}
})
self.client.register_schema('network-interface-status-linkstate', {
'type': 'string',
'enum': list(netif.InterfaceLinkState.__members__.keys())
})
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c', metavar='CONFIG', default=DEFAULT_CONFIGFILE, help='Middleware config file')
args = parser.parse_args()
configure_logging('/var/log/networkd.log', 'DEBUG')
setproctitle.setproctitle('networkd')
self.config = args.c
self.init_datastore()
self.init_dispatcher()
self.scan_interfaces()
self.init_routing_socket()
self.client.resume_service('networkd.configuration')
self.client.resume_service('networkd.debug')
self.logger.info('Started')
self.client.wait_forever()
class Main(object):
def __init__(self):
self.logger = logging.getLogger('clid')
self.config = None
self.datastore = None
self.configstore = None
self.client = None
self.config = None
self.logger = logging.getLogger()
self.plugin_dirs = []
self.ml = None
self.context = None
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning('Connection to dispatcher lost')
self.connect()
self.client = Client()
self.client.on_error(on_error)
self.connect()
def init_cli(self):
self.logger.info('Initializing CLI instance')
self.context = Context()
self.context.connection = self.client
self.context.plugin_dirs = PLUGIN_DIRS
self.context.discover_plugins()
self.context.start_entity_subscribers()
self.context.login_plugins()
self.ml = MainLoop(self.context)
self.logger.info('CLI instance ready')
def connect(self):
while True:
try:
self.client.connect('unix:')
self.client.login_service('clid')
self.client.enable_server()
self.client.call_sync('management.enable_features', ['streaming_responses'])
self.client.register_service('clid.management', ManagementService(self))
self.client.register_service('clid.eval', EvalService(self))
self.client.register_service('clid.debug', DebugService())
self.client.resume_service('clid.management')
self.client.resume_service('clid.eval')
self.client.resume_service('clid.debug')
return
except (OSError, RpcException) as err:
self.logger.warning('Cannot connect to dispatcher: {0}, retrying in 1 second'.format(str(err)))
time.sleep(1)
def main(self):
parser = argparse.ArgumentParser()
parser.add_argument('-c', metavar='CONFIG', default=DEFAULT_CONFIGFILE, help='Middleware config file')
args = parser.parse_args()
self.config = args.c
configure_logging('/var/log/clid.log', 'DEBUG')
setproctitle('clid')
self.init_dispatcher()
self.init_cli()
self.client.wait_forever()
class Context(object):
def __init__(self):
self.logger = logging.getLogger(self.__class__.__name__)
self.msock = msock.client.Client()
self.msock.on_closed = self.on_msock_close
self.rpc_fd = -1
self.connection_id = None
self.jobs = []
self.state = ConnectionState.OFFLINE
self.config = None
self.keepalive = None
self.connected_at = None
self.cv = Condition()
self.rpc = RpcContext()
self.client = Client()
self.server = Server()
self.middleware_endpoint = None
def start(self, configpath, sockpath):
signal.signal(signal.SIGUSR2, lambda signo, frame: self.connect())
self.read_config(configpath)
self.server.rpc = RpcContext()
self.server.rpc.register_service_instance("control", ControlService(self))
self.server.start(sockpath)
threading.Thread(target=self.server.serve_forever, name="server thread", daemon=True).start()
def init_dispatcher(self):
def on_error(reason, **kwargs):
if reason in (ClientError.CONNECTION_CLOSED, ClientError.LOGOUT):
self.logger.warning("Connection to dispatcher lost")
self.connect_dispatcher()
self.middleware_endpoint = Client()
self.middleware_endpoint.on_error(on_error)
self.connect_dispatcher()
def connect_dispatcher(self):
while True:
try:
self.middleware_endpoint.connect("unix:")
self.middleware_endpoint.login_service("debugd")
self.middleware_endpoint.enable_server()
self.middleware_endpoint.register_service("debugd.management", ControlService(self))
self.middleware_endpoint.resume_service("debugd.management")
return
except (OSError, RpcException) as err:
self.logger.warning("Cannot connect to dispatcher: {0}, retrying in 1 second".format(str(err)))
time.sleep(1)
def read_config(self, path):
try:
with open(path) as f:
self.config = json.load(f)
except (IOError, OSError, ValueError) as err:
self.logger.fatal("Cannot open config file: {0}".format(str(err)))
self.logger.fatal("Exiting.")
sys.exit(1)
def connect(self, discard=False):
if discard:
self.connection_id = None
self.keepalive = threading.Thread(target=self.connect_keepalive, daemon=True)
self.keepalive.start()
def connect_keepalive(self):
while True:
try:
if not self.connection_id:
self.connection_id = uuid.uuid4()
self.msock.connect(SUPPORT_PROXY_ADDRESS)
self.logger.info("Connecting to {0}".format(SUPPORT_PROXY_ADDRESS))
self.rpc_fd = self.msock.create_channel(0)
time.sleep(1) # FIXME
self.client = Client()
self.client.connect("fd://", fobj=self.rpc_fd)
self.client.channel_serializer = MSockChannelSerializer(self.msock)
self.client.standalone_server = True
self.client.enable_server()
self.client.register_service("debug", DebugService(self))
self.client.call_sync(
"server.login", str(self.connection_id), socket.gethostname(), get_version(), "none"
)
self.set_state(ConnectionState.CONNECTED)
except BaseException as err:
self.logger.warning("Failed to initiate support connection: {0}".format(err), exc_info=True)
self.msock.disconnect()
else:
self.connected_at = datetime.now()
with self.cv:
self.cv.wait_for(lambda: self.state in (ConnectionState.LOST, ConnectionState.OFFLINE))
if self.state == ConnectionState.OFFLINE:
return
self.logger.warning("Support connection lost, retrying in 10 seconds")
time.sleep(10)
def disconnect(self):
self.connected_at = None
self.set_state(ConnectionState.OFFLINE)
self.client.disconnect()
self.msock.destroy_channel(0)
self.msock.disconnect()
self.jobs.clear()
def on_msock_close(self):
self.connected_at = None
self.set_state(ConnectionState.LOST)
def run_job(self, job):
self.jobs.append(job)
job.context = self
job.start()
def set_state(self, state):
with self.cv:
self.state = state
self.cv.notify_all()