def get_replication_client(dispatcher, remote):
host = dispatcher.call_sync(
'peer.query',
[('address', '=', remote), ('type', '=', 'replication')],
{'single': True}
)
if not host:
raise TaskException(errno.ENOENT, 'There are no known keys to connect to {0}'.format(remote))
with open('/etc/replication/key') as f:
pkey = RSAKey.from_private_key(f)
credentials = host['credentials']
try:
client = Client()
with tempfile.NamedTemporaryFile('w') as host_key_file:
host_key_file.write(credentials['hostkey'])
host_key_file.flush()
client.connect(
'ws+ssh://replication@{0}'.format(remote),
port=credentials['port'],
host_key_file=host_key_file.name,
pkey=pkey
)
client.login_service('replicator')
return client
except (AuthenticationException, SSHException):
raise TaskException(errno.EAUTH, 'Cannot connect to {0}'.format(remote))
except (OSError, ConnectionRefusedError):
raise TaskException(errno.ECONNREFUSED, 'Cannot connect to {0}'.format(remote))
except IOError:
raise TaskException(errno.EINVAL, 'Provided host key is not valid')
def main(name, *args):
connection = Client()
connection.connect('127.0.0.1')
connection.login_service('ups')
connection.emit_event('service.ups.signal', {
'name': name,
'type': os.environ['NOTIFYTYPE'],
})
connection.disconnect()
def main(*args):
connection = Client()
connection.connect('127.0.0.1')
connection.login_service('smtp')
parser = argparse.ArgumentParser(description='Process email')
parser.add_argument('-i', dest='strip_leading_dot', action='store_false',
default=True, help='see sendmail(8) -i')
parser.add_argument('-t', dest='parse_recipients', action='store_true',
default=False,
help='parse recipients from message')
parser.usage = ' '.join(parser.format_usage().split(' ')[1:-1])
parser.usage += ' [email_addr|user] ..'
args, to_addrs = parser.parse_known_args()
if not to_addrs and not args.parse_recipients:
parser.exit(message=parser.format_usage())
msg = sys.stdin.read()
em_parser = email.parser.Parser()
em = em_parser.parsestr(msg)
if args.parse_recipients:
# Strip away the comma based delimiters and whitespace.
to_addrs = map(str.strip, em.get('To').split(','))
if not to_addrs or not to_addrs[0]:
to_addrs = ['root']
margs = {}
margs['extra_headers'] = dict(em)
margs['extra_headers'].update({
'X-Mailer': 'FreeNAS',
'X-FreeNAS-Host': socket.gethostname(),
})
margs['subject'] = em.get('Subject')
if em.is_multipart():
margs['attachments'] = filter(
lambda part: part.get_content_maintype() != 'multipart',
em.walk()
)
margs['message'] = (
'This is a MIME formatted message. If you see '
'this text it means that your email software '
'does not support MIME formatted messages.')
else:
margs['message'] = ''.join(email.iterators.body_line_iterator(em))
if to_addrs:
margs['to'] = to_addrs
connection.call_sync('mail.send', margs)
connection.disconnect()
def main(*args):
connection = Client()
connection.connect("127.0.0.1")
connection.login_service("smtp")
parser = argparse.ArgumentParser(description="Process email")
parser.add_argument("-i", dest="strip_leading_dot", action="store_false", default=True, help="see sendmail(8) -i")
parser.add_argument(
"-t", dest="parse_recipients", action="store_true", default=False, help="parse recipients from message"
)
parser.usage = " ".join(parser.format_usage().split(" ")[1:-1])
parser.usage += " [email_addr|user] .."
args, to_addrs = parser.parse_known_args()
if not to_addrs and not args.parse_recipients:
parser.exit(message=parser.format_usage())
msg = sys.stdin.read()
em_parser = email.parser.Parser()
em = em_parser.parsestr(msg)
if args.parse_recipients:
# Strip away the comma based delimiters and whitespace.
to_addrs = map(str.strip, em.get("To").split(","))
if not to_addrs or not to_addrs[0]:
to_addrs = ["root"]
margs = {}
margs["extra_headers"] = dict(em)
margs["extra_headers"].update({"X-Mailer": "FreeNAS", "X-FreeNAS-Host": socket.gethostname()})
margs["subject"] = em.get("Subject")
if em.is_multipart():
margs["attachments"] = filter(lambda part: part.get_content_maintype() != "multipart", em.walk())
margs["message"] = (
"This is a MIME formatted message. If you see "
"this text it means that your email software "
"does not support MIME formatted messages."
)
else:
margs["message"] = "".join(email.iterators.body_line_iterator(em))
if to_addrs:
margs["to"] = to_addrs
connection.call_sync("mail.send", margs)
connection.disconnect()
def get_freenas_peer_client(parent, remote):
try:
address = socket.gethostbyname(remote)
except socket.error as err:
raise TaskException(err.errno, '{0} is unreachable'.format(remote))
host = parent.dispatcher.call_sync(
'peer.query', [
('or', [
('credentials.address', '=', remote),
('credentials.address', '=', address),
]),
('type', '=', 'freenas')
],
{'single': True}
)
if not host:
raise TaskException(errno.ENOENT, 'There are no known keys to connect to {0}'.format(remote))
with io.StringIO() as f:
f.write(parent.configstore.get('peer.freenas.key.private'))
f.seek(0)
pkey = RSAKey.from_private_key(f)
credentials = host['credentials']
try:
client = Client()
with tempfile.NamedTemporaryFile('w') as host_key_file:
host_key_file.write(remote + ' ' + credentials['hostkey'])
host_key_file.flush()
client.connect(
'ws+ssh://freenas@{0}'.format(wrap_address(remote)),
port=credentials['port'],
host_key_file=host_key_file.name,
pkey=pkey
)
client.login_service('replicator')
return client
except (AuthenticationException, SSHException):
raise TaskException(errno.EAUTH, 'Cannot connect to {0}'.format(remote))
except OSError as err:
raise TaskException(errno.ECONNREFUSED, 'Cannot connect to {0}: {1}'.format(remote, err))
def get_freenas_peer_client(parent, remote):
try:
address = socket.gethostbyname(remote)
except socket.error as err:
raise TaskException(err.errno, '{0} is unreachable'.format(remote))
host = parent.dispatcher.call_sync(
'peer.query', [
('or', [
('credentials.address', '=', remote),
('credentials.address', '=', address),
]),
('type', '=', 'freenas')
],
{'single': True}
)
if not host:
raise TaskException(errno.ENOENT, 'There are no known keys to connect to {0}'.format(remote))
with io.StringIO() as f:
f.write(parent.configstore.get('peer.freenas.key.private'))
f.seek(0)
pkey = RSAKey.from_private_key(f)
credentials = host['credentials']
try:
client = Client()
with tempfile.NamedTemporaryFile('w') as host_key_file:
host_key_file.write(remote + ' ' + credentials['hostkey'])
host_key_file.flush()
client.connect(
'ws+ssh://freenas@{0}'.format(wrap_address(remote)),
port=credentials['port'],
host_key_file=host_key_file.name,
pkey=pkey
)
client.login_service('replicator')
return client
except (AuthenticationException, SSHException):
raise TaskException(errno.EAUTH, 'Cannot connect to {0}'.format(remote))
except OSError as err:
raise TaskException(errno.ECONNREFUSED, 'Cannot connect to {0}: {1}'.format(remote, err))
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 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()
def run(self, peer, initial_credentials):
hostid = self.dispatcher.call_sync('system.info.host_uuid')
hostname = self.dispatcher.call_sync(
'system.general.get_config')['hostname']
remote_peer_name = hostname
credentials = peer['credentials']
remote = credentials.get('address')
port = credentials.get('port', 22)
username = initial_credentials.get('username')
password = initial_credentials.get('password')
auth_code = initial_credentials.get('auth_code')
key_auth = initial_credentials.get('key_auth')
local_ssh_config = self.dispatcher.call_sync('service.sshd.get_config')
if self.datastore.exists('peers', ('credentials.address', '=', remote),
('type', '=', 'freenas')):
raise TaskException(
errno.EEXIST,
'FreeNAS peer entry for {0} already exists'.format(remote))
remote_client = Client()
try:
if auth_code:
try:
remote_client.connect('ws://{0}'.format(
wrap_address(remote)))
except (AuthenticationException, OSError,
ConnectionRefusedError):
raise TaskException(
errno.ECONNABORTED,
'Cannot connect to {0}:{1}'.format(remote, port))
try:
remote_host_uuid, pubkey = remote_client.call_sync(
'peer.freenas.auth_with_code', auth_code, hostname,
local_ssh_config['port'])
except RpcException as err:
raise TaskException(err.code, err.message)
try:
self.dispatcher.call_sync('peer.freenas.put_temp_pubkey',
pubkey)
if not self.dispatcher.test_or_wait_for_event(
'peer.changed',
lambda ar: ar['operation'] == 'create' and
remote_host_uuid in ar['ids'],
lambda: self.datastore.exists(
'peers', ('id', '=', remote_host_uuid)),
timeout=30):
raise TaskException(
errno.EAUTH,
'FreeNAS peer creation failed. Check connection to host {0}.'
.format(remote))
finally:
self.dispatcher.call_sync(
'peer.freenas.remove_temp_pubkey', pubkey)
else:
try:
if key_auth:
with io.StringIO() as f:
f.write(
self.configstore.get(
'peer.freenas.key.private'))
f.seek(0)
pkey = RSAKey.from_private_key(f)
max_tries = 50
while True:
try:
remote_client.connect(
'ws+ssh://freenas@{0}'.format(
wrap_address(remote)),
pkey=pkey,
port=port)
break
except AuthenticationException:
if max_tries:
max_tries -= 1
time.sleep(1)
else:
raise
else:
remote_client.connect('ws+ssh://{0}@{1}'.format(
username, wrap_address(remote)),
port=port,
password=password)
remote_client.login_service('replicator')
except (AuthenticationException, OSError,
ConnectionRefusedError):
raise TaskException(
errno.ECONNABORTED,
'Cannot connect to {0}:{1}'.format(remote, port))
local_host_key, local_pub_key = self.dispatcher.call_sync(
'peer.freenas.get_ssh_keys')
remote_host_key, remote_pub_key = remote_client.call_sync(
'peer.freenas.get_ssh_keys')
ip_at_remote_side = remote_client.local_address[0]
remote_hostname = remote_client.call_sync(
'system.general.get_config')['hostname']
remote_host_key = remote_host_key.rsplit(' ', 1)[0]
local_host_key = local_host_key.rsplit(' ', 1)[0]
if remote_client.call_sync('peer.query',
[('id', '=', hostid)]):
raise TaskException(
errno.EEXIST,
'Peer entry of {0} already exists at {1}'.format(
hostname, remote))
peer['credentials'] = {
'%type': 'freenas-credentials',
'pubkey': remote_pub_key,
'hostkey': remote_host_key,
'port': port,
'address': remote_hostname
}
local_id = remote_client.call_sync('system.info.host_uuid')
peer['id'] = local_id
peer['name'] = remote_hostname
ip = socket.gethostbyname(remote)
created_ids = self.join_subtasks(
self.run_subtask('peer.freenas.create_local', peer, ip,
True))
peer['id'] = hostid
peer['name'] = remote_peer_name
peer['credentials'] = {
'%type': 'freenas-credentials',
'pubkey': local_pub_key,
'hostkey': local_host_key,
'port': local_ssh_config['port'],
'address': hostname
}
try:
call_task_and_check_state(remote_client,
'peer.freenas.create_local',
peer, ip_at_remote_side)
except TaskException:
self.datastore.delete('peers', local_id)
self.dispatcher.dispatch_event('peer.changed', {
'operation': 'delete',
'ids': [local_id]
})
raise
return created_ids[0]
finally:
remote_client.disconnect()
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()
def run(self, peer, initial_credentials):
hostid = self.dispatcher.call_sync('system.info.host_uuid')
hostname = self.dispatcher.call_sync('system.general.get_config')['hostname']
remote_peer_name = hostname
credentials = peer['credentials']
remote = credentials.get('address')
port = credentials.get('port', 22)
username = initial_credentials.get('username')
password = initial_credentials.get('password')
auth_code = initial_credentials.get('auth_code')
key_auth = initial_credentials.get('key_auth')
local_ssh_config = self.dispatcher.call_sync('service.sshd.get_config')
if self.datastore.exists('peers', ('credentials.address', '=', remote), ('type', '=', 'freenas')):
raise TaskException(
errno.EEXIST,
'FreeNAS peer entry for {0} already exists'.format(remote)
)
remote_client = Client()
try:
if auth_code:
try:
remote_client.connect('ws://{0}'.format(wrap_address(remote)))
except (AuthenticationException, OSError, ConnectionRefusedError):
raise TaskException(errno.ECONNABORTED, 'Cannot connect to {0}:{1}'.format(remote, port))
try:
remote_host_uuid, pubkey = remote_client.call_sync(
'peer.freenas.auth_with_code',
auth_code,
hostname,
local_ssh_config['port']
)
except RpcException as err:
raise TaskException(err.code, err.message)
try:
self.dispatcher.call_sync('peer.freenas.put_temp_pubkey', pubkey)
if not self.dispatcher.test_or_wait_for_event(
'peer.changed',
lambda ar: ar['operation'] == 'create' and remote_host_uuid in ar['ids'],
lambda: self.datastore.exists('peers', ('id', '=', remote_host_uuid)),
timeout=30
):
raise TaskException(
errno.EAUTH,
'FreeNAS peer creation failed. Check connection to host {0}.'.format(remote)
)
finally:
self.dispatcher.call_sync('peer.freenas.remove_temp_pubkey', pubkey)
else:
try:
if key_auth:
with io.StringIO() as f:
f.write(self.configstore.get('peer.freenas.key.private'))
f.seek(0)
pkey = RSAKey.from_private_key(f)
max_tries = 50
while True:
try:
remote_client.connect('ws+ssh://freenas@{0}'.format(
wrap_address(remote)), pkey=pkey, port=port
)
break
except AuthenticationException:
if max_tries:
max_tries -= 1
time.sleep(1)
else:
raise
else:
remote_client.connect(
'ws+ssh://{0}@{1}'.format(username, wrap_address(remote)),
port=port,
password=password
)
remote_client.login_service('replicator')
except (AuthenticationException, OSError, ConnectionRefusedError):
raise TaskException(errno.ECONNABORTED, 'Cannot connect to {0}:{1}'.format(remote, port))
local_host_key, local_pub_key = self.dispatcher.call_sync('peer.freenas.get_ssh_keys')
remote_host_key, remote_pub_key = remote_client.call_sync('peer.freenas.get_ssh_keys')
ip_at_remote_side = remote_client.local_address[0]
remote_hostname = remote_client.call_sync('system.general.get_config')['hostname']
remote_host_key = remote_host_key.rsplit(' ', 1)[0]
local_host_key = local_host_key.rsplit(' ', 1)[0]
if remote_client.call_sync('peer.query', [('id', '=', hostid)]):
raise TaskException(errno.EEXIST, 'Peer entry of {0} already exists at {1}'.format(hostname, remote))
peer['credentials'] = {
'%type': 'freenas-credentials',
'pubkey': remote_pub_key,
'hostkey': remote_host_key,
'port': port,
'address': remote_hostname
}
local_id = remote_client.call_sync('system.info.host_uuid')
peer['id'] = local_id
peer['name'] = remote_hostname
ip = socket.gethostbyname(remote)
created_id = self.run_subtask_sync(
'peer.freenas.create_local',
peer,
ip,
True
)
peer['id'] = hostid
peer['name'] = remote_peer_name
peer['credentials'] = {
'%type': 'freenas-credentials',
'pubkey': local_pub_key,
'hostkey': local_host_key,
'port': local_ssh_config['port'],
'address': hostname
}
try:
call_task_and_check_state(
remote_client,
'peer.freenas.create_local',
peer,
ip_at_remote_side
)
except TaskException:
self.datastore.delete('peers', local_id)
self.dispatcher.dispatch_event('peer.changed', {
'operation': 'delete',
'ids': [local_id]
})
raise
return created_id
finally:
remote_client.disconnect()
def run(self, peer):
if self.datastore.exists('peers', ('address', '=', peer['address']), ('type', '=', 'replication')):
raise TaskException(errno.EEXIST, 'Replication peer entry for {0} already exists'.format(peer['address']))
if peer['credentials']['type'] != 'ssh':
raise TaskException(errno.EINVAL, 'SSH credentials type is needed to perform replication peer pairing')
remote = peer.get('address')
credentials = peer['credentials']
username = credentials.get('username')
port = credentials.get('port', 22)
password = credentials.get('password')
if not username:
raise TaskException(errno.EINVAL, 'Username has to be specified')
if not remote:
raise TaskException(errno.EINVAL, 'Address of remote host has to be specified')
if not password:
raise TaskException(errno.EINVAL, 'Password has to be specified')
remote_client = Client()
try:
try:
remote_client.connect('ws+ssh://{0}@{1}'.format(username, remote), port=port, password=password)
remote_client.login_service('replicator')
except (AuthenticationException, OSError, ConnectionRefusedError):
raise TaskException(errno.ECONNABORTED, 'Cannot connect to {0}:{1}'.format(remote, port))
local_keys = self.dispatcher.call_sync('peer.get_ssh_keys')
remote_keys = remote_client.call_sync('peer.get_ssh_keys')
ip_at_remote_side = remote_client.call_sync('management.get_sender_address').split(',', 1)[0]
remote_host_key = remote + ' ' + remote_keys[0].rsplit(' ', 1)[0]
local_host_key = ip_at_remote_side + ' ' + local_keys[0].rsplit(' ', 1)[0]
local_ssh_config = self.dispatcher.call_sync('service.sshd.get_config')
if remote_client.call_sync('peer.query', [('name', '=', peer['name'])]):
raise TaskException(errno.EEXIST, 'Peer entry {0} already exists at {1}'.format(peer['name'], remote))
peer['credentials'] = {
'pubkey': remote_keys[1],
'hostkey': remote_host_key,
'port': port,
'type': 'replication'
}
self.join_subtasks(self.run_subtask(
'peer.replication.create_local',
peer
))
peer['address'] = ip_at_remote_side
peer['credentials'] = {
'pubkey': local_keys[1],
'hostkey': local_host_key,
'port': local_ssh_config['port'],
'type': 'replication'
}
id = self.datastore.query('peers', ('name', '=', peer['name']), select='id')
try:
call_task_and_check_state(
remote_client,
'peer.replication.create_local',
peer
)
except TaskException:
self.datastore.delete('peers', id)
self.dispatcher.dispatch_event('peer.changed', {
'operation': 'delete',
'ids': [id]
})
raise
finally:
remote_client.disconnect()
class RESTApi(object):
def __init__(self):
self.logger = logging.getLogger('restd')
self._cruds = []
self._threads = []
self._rpcs = {}
self._schemas = {}
self._used_schemas = set()
self._services = {}
self._tasks = {}
self.api = falcon.API(middleware=[
AuthMiddleware(),
JSONTranslator(),
])
self.api.add_route('/', SwaggerResource(self))
gevent.signal(signal.SIGINT, self.die)
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.dispatcher = Client()
self.dispatcher.on_error(on_error)
self.connect()
def init_metadata(self):
self._tasks = self.dispatcher.call_sync('discovery.get_tasks')
self._schemas = self.dispatcher.call_sync('discovery.get_schema')
for service in self.dispatcher.call_sync('discovery.get_services'):
self._services[service] = self.dispatcher.call_sync(
'discovery.get_methods', service)
for method in self._services[service]:
self._rpcs['{0}.{1}'.format(service, method['name'])] = method
def load_plugins(self):
pluginsdir = os.path.realpath(
os.path.join(os.path.dirname(__file__), '..', 'plugins'))
for i in glob.glob1(pluginsdir, "*.py"):
try:
loader = importlib.machinery.SourceFileLoader(
i.split('.')[0], os.path.join(pluginsdir, i))
mod = loader.load_module()
except:
self.logger.error('Failed to load plugin %s', i, exc_info=True)
raise
mod._init(self)
def connect(self):
while True:
try:
self.dispatcher.connect('unix:')
self.dispatcher.login_service('restd')
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 __call__(self, environ, start_response):
if 'HTTP_X_REAL_IP' in environ:
environ['PATH_INFO'] = environ.get('PATH_INFO',
'').replace('/api/v2.0', '', 1)
return self.api.__call__(environ, start_response)
def register_crud(self, klass):
ins = klass(self, self.dispatcher)
self._cruds.append(ins)
def register_singleitem(self, klass):
klass(self, self.dispatcher)
def register_resource(self, klass):
klass(self)
def run(self):
self.init_dispatcher()
self.init_metadata()
self.load_plugins()
server4 = WSGIServer(('0.0.0.0', 8889),
self,
handler_class=RESTWSGIHandler)
self._threads = [gevent.spawn(server4.serve_forever)]
checkin()
gevent.joinall(self._threads)
def die(self, *args):
gevent.killall(self._threads)
sys.exit(0)
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('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 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('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(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.service = TaskProxyService(self)
self.task = queue.Queue(1)
self.datastore = None
self.configstore = None
self.conn = None
self.instance = None
self.running = Event()
def put_status(self, state, result=None, exception=None):
obj = {
'status': state,
'result': None
}
if result is not None:
obj['result'] = result
if exception is not None:
obj['error'] = serialize_error(exception)
self.conn.call_sync('task.put_status', obj)
def task_progress_handler(self, args):
if self.instance:
self.instance.task_progress_handler(args)
def collect_fds(self, obj):
if isinstance(obj, dict):
for v in obj.values():
if isinstance(v, FileDescriptor):
yield v
else:
yield from self.collect_fds(v)
if isinstance(obj, (list, tuple)):
for o in obj:
if isinstance(o, FileDescriptor):
yield o
else:
yield from self.collect_fds(o)
def close_fds(self, fds):
for i in fds:
try:
os.close(i.fd)
except OSError:
pass
def main(self):
if len(sys.argv) != 2:
print("Invalid number of arguments", file=sys.stderr)
sys.exit(errno.EINVAL)
key = sys.argv[1]
configure_logging(None, logging.DEBUG)
self.datastore = get_datastore()
self.configstore = ConfigStore(self.datastore)
self.conn = Client()
self.conn.connect('unix:')
self.conn.login_service('task.{0}'.format(os.getpid()))
self.conn.enable_server()
self.conn.rpc.register_service_instance('taskproxy', self.service)
self.conn.register_event_handler('task.progress', self.task_progress_handler)
self.conn.call_sync('task.checkin', key)
setproctitle.setproctitle('task executor (idle)')
while True:
try:
task = self.task.get()
logging.root.setLevel(self.conn.call_sync('management.get_logging_level'))
setproctitle.setproctitle('task executor (tid {0})'.format(task['id']))
if task['debugger']:
sys.path.append('/usr/local/lib/dispatcher/pydev')
import pydevd
host, port = task['debugger']
pydevd.settrace(host, port=port, stdoutToServer=True, stderrToServer=True)
name, _ = os.path.splitext(os.path.basename(task['filename']))
module = load_module_from_file(name, task['filename'])
setproctitle.setproctitle('task executor (tid {0})'.format(task['id']))
fds = list(self.collect_fds(task['args']))
try:
self.instance = getattr(module, task['class'])(DispatcherWrapper(self.conn), self.datastore)
self.instance.configstore = self.configstore
self.instance.user = task['user']
self.instance.environment = task['environment']
self.running.set()
result = self.instance.run(*task['args'])
except BaseException as err:
print("Task exception: {0}".format(str(err)), file=sys.stderr)
traceback.print_exc(file=sys.stderr)
if hasattr(self.instance, 'rollback'):
self.put_status('ROLLBACK')
try:
self.instance.rollback(*task['args'])
except BaseException as rerr:
print("Task exception during rollback: {0}".format(str(rerr)), file=sys.stderr)
traceback.print_exc(file=sys.stderr)
self.put_status('FAILED', exception=err)
else:
self.put_status('FINISHED', result=result)
finally:
self.close_fds(fds)
self.running.clear()
except RpcException as err:
print("RPC failed: {0}".format(str(err)), file=sys.stderr)
print(traceback.format_exc(), flush=True)
sys.exit(errno.EBADMSG)
except socket.error as err:
print("Cannot connect to dispatcher: {0}".format(str(err)), file=sys.stderr)
sys.exit(errno.ETIMEDOUT)
if task['debugger']:
import pydevd
pydevd.stoptrace()
setproctitle.setproctitle('task executor (idle)')
class Context(object):
def __init__(self):
self.service = TaskProxyService(self)
self.task = queue.Queue(1)
self.datastore = None
self.configstore = None
self.conn = None
self.instance = None
self.running = Event()
def put_status(self, state, result=None, exception=None):
obj = {
'status': state,
'result': None
}
if result is not None:
obj['result'] = result
if exception is not None:
obj['error'] = serialize_error(exception)
self.conn.call_sync('task.put_status', obj)
def main(self):
if len(sys.argv) != 2:
print("Invalid number of arguments", file=sys.stderr)
sys.exit(errno.EINVAL)
key = sys.argv[1]
logging.basicConfig(level=logging.DEBUG)
self.datastore = get_datastore()
self.configstore = ConfigStore(self.datastore)
self.conn = Client()
self.conn.connect('unix:')
self.conn.login_service('task.{0}'.format(os.getpid()))
self.conn.enable_server()
self.conn.rpc.register_service_instance('taskproxy', self.service)
self.conn.call_sync('task.checkin', key)
setproctitle.setproctitle('task executor (idle)')
while True:
try:
task = self.task.get()
setproctitle.setproctitle('task executor (tid {0})'.format(task['id']))
if task['debugger']:
sys.path.append('/usr/local/lib/dispatcher/pydev')
import pydevd
host, port = task['debugger']
pydevd.settrace(host, port=port, stdoutToServer=True, stderrToServer=True)
name, _ = os.path.splitext(os.path.basename(task['filename']))
module = load_module_from_file(name, task['filename'])
setproctitle.setproctitle('task executor (tid {0})'.format(task['id']))
try:
self.instance = getattr(module, task['class'])(DispatcherWrapper(self.conn), self.datastore)
self.instance.configstore = self.configstore
self.instance.environment = task['environment']
self.running.set()
result = self.instance.run(*task['args'])
except BaseException as err:
print("Task exception: {0}".format(str(err)), file=sys.stderr)
traceback.print_exc(file=sys.stderr)
if hasattr(self.instance, 'rollback'):
self.put_status('ROLLBACK')
try:
self.instance.rollback(*task['args'])
except BaseException as rerr:
print("Task exception during rollback: {0}".format(str(rerr)), file=sys.stderr)
traceback.print_exc(file=sys.stderr)
self.put_status('FAILED', exception=err)
else:
self.put_status('FINISHED', result=result)
finally:
self.running.clear()
except RpcException as err:
print("RPC failed: {0}".format(str(err)), file=sys.stderr)
sys.exit(errno.EBADMSG)
except socket.error as err:
print("Cannot connect to dispatcher: {0}".format(str(err)), file=sys.stderr)
sys.exit(errno.ETIMEDOUT)
if task['debugger']:
import pydevd
pydevd.stoptrace()
setproctitle.setproctitle('task executor (idle)')
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 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.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 RESTApi(object):
def __init__(self):
self.logger = logging.getLogger('restd')
self._cruds = []
self._threads = []
self._rpcs = {}
self._schemas = {}
self._used_schemas = set()
self._services = {}
self._tasks = {}
self.api = falcon.API(middleware=[
AuthMiddleware(),
JSONTranslator(),
])
self.api.add_route('/', SwaggerResource(self))
gevent.signal(signal.SIGINT, self.die)
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.dispatcher = Client()
self.dispatcher.on_error(on_error)
self.connect()
def init_metadata(self):
self._tasks = self.dispatcher.call_sync('discovery.get_tasks')
self._schemas = self.dispatcher.call_sync('discovery.get_schema')
for service in self.dispatcher.call_sync('discovery.get_services'):
self._services[service] = self.dispatcher.call_sync('discovery.get_methods', service)
for method in self._services[service]:
self._rpcs['{0}.{1}'.format(service, method['name'])] = method
def load_plugins(self):
pluginsdir = os.path.realpath(os.path.join(os.path.dirname(__file__), '..', 'plugins'))
for i in glob.glob1(pluginsdir, "*.py"):
try:
loader = importlib.machinery.SourceFileLoader(i.split('.')[0], os.path.join(pluginsdir, i))
mod = loader.load_module()
except:
self.logger.error('Failed to load plugin %s', i, exc_info=True)
raise
mod._init(self)
def connect(self):
while True:
try:
self.dispatcher.connect('unix:')
self.dispatcher.login_service('restd')
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 __call__(self, environ, start_response):
if 'HTTP_X_REAL_IP' in environ:
environ['PATH_INFO'] = environ.get('PATH_INFO', '').replace('/api/v2.0', '', 1)
return self.api.__call__(environ, start_response)
def register_crud(self, klass):
ins = klass(self, self.dispatcher)
self._cruds.append(ins)
def register_singleitem(self, klass):
klass(self, self.dispatcher)
def register_resource(self, klass):
klass(self)
def run(self):
self.init_dispatcher()
self.init_metadata()
self.load_plugins()
server4 = WSGIServer(('', 8889), self, handler_class=RESTWSGIHandler)
self._threads = [gevent.spawn(server4.serve_forever)]
checkin()
gevent.joinall(self._threads)
def die(self, *args):
gevent.killall(self._threads)
sys.exit(0)
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('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 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 Context(object):
def __init__(self):
self.service = TaskProxyService(self)
self.task = queue.Queue(1)
self.datastore = None
self.configstore = None
self.conn = None
self.instance = None
self.module_cache = {}
self.running = Event()
def put_status(self, state, result=None, exception=None):
obj = {'status': state, 'result': None}
if result is not None:
obj['result'] = result
if exception is not None:
obj['error'] = serialize_error(exception)
self.conn.call_sync('task.put_status', obj)
def task_progress_handler(self, args):
if self.instance:
self.instance.task_progress_handler(args)
def collect_fds(self, obj):
if isinstance(obj, dict):
for v in obj.values():
if isinstance(v, FileDescriptor):
yield v
else:
yield from self.collect_fds(v)
if isinstance(obj, (list, tuple)):
for o in obj:
if isinstance(o, FileDescriptor):
yield o
else:
yield from self.collect_fds(o)
def close_fds(self, fds):
for i in fds:
try:
os.close(i.fd)
except OSError:
pass
def run_task_hooks(self, instance, task, type, **extra_env):
for hook, props in task['hooks'].get(type, {}).items():
try:
if props['condition'] and not props['condition'](
*task['args']):
continue
except BaseException as err:
print(err)
continue
instance.join_subtasks(
instance.run_subtask(hook, *task['args'], **extra_env))
def main(self):
if len(sys.argv) != 2:
print("Invalid number of arguments", file=sys.stderr)
sys.exit(errno.EINVAL)
key = sys.argv[1]
configure_logging(None, logging.DEBUG)
self.datastore = get_datastore()
self.configstore = ConfigStore(self.datastore)
self.conn = Client()
self.conn.connect('unix:')
self.conn.login_service('task.{0}'.format(os.getpid()))
self.conn.enable_server()
self.conn.call_sync('management.enable_features',
['streaming_responses'])
self.conn.rpc.register_service_instance('taskproxy', self.service)
self.conn.register_event_handler('task.progress',
self.task_progress_handler)
self.conn.call_sync('task.checkin', key)
setproctitle.setproctitle('task executor (idle)')
while True:
try:
task = self.task.get()
logging.root.setLevel(
self.conn.call_sync('management.get_logging_level'))
setproctitle.setproctitle('task executor (tid {0})'.format(
task['id']))
if task['debugger']:
sys.path.append('/usr/local/lib/dispatcher/pydev')
import pydevd
host, port = task['debugger']
pydevd.settrace(host,
port=port,
stdoutToServer=True,
stderrToServer=True)
name, _ = os.path.splitext(os.path.basename(task['filename']))
module = self.module_cache.get(task['filename'])
if not module:
module = load_module_from_file(name, task['filename'])
self.module_cache[task['filename']] = module
setproctitle.setproctitle('task executor (tid {0})'.format(
task['id']))
fds = list(self.collect_fds(task['args']))
try:
dispatcher = DispatcherWrapper(self.conn)
self.instance = getattr(module,
task['class'])(dispatcher,
self.datastore)
self.instance.configstore = self.configstore
self.instance.user = task['user']
self.instance.environment = task['environment']
self.running.set()
self.run_task_hooks(self.instance, task, 'before')
result = self.instance.run(*task['args'])
self.run_task_hooks(self.instance,
task,
'after',
result=result)
except BaseException as err:
print("Task exception: {0}".format(str(err)),
file=sys.stderr)
traceback.print_exc(file=sys.stderr)
if hasattr(self.instance, 'rollback'):
self.put_status('ROLLBACK')
try:
self.instance.rollback(*task['args'])
except BaseException as rerr:
print("Task exception during rollback: {0}".format(
str(rerr)),
file=sys.stderr)
traceback.print_exc(file=sys.stderr)
# Main task is already failed at this point, so ignore hook errors
with contextlib.suppress(RpcException):
self.run_task_hooks(self.instance,
task,
'error',
error=serialize_error(err))
self.put_status('FAILED', exception=err)
else:
self.put_status('FINISHED', result=result)
finally:
self.close_fds(fds)
self.running.clear()
except RpcException as err:
print("RPC failed: {0}".format(str(err)), file=sys.stderr)
print(traceback.format_exc(), flush=True)
sys.exit(errno.EBADMSG)
except socket.error as err:
print("Cannot connect to dispatcher: {0}".format(str(err)),
file=sys.stderr)
sys.exit(errno.ETIMEDOUT)
if task['debugger']:
import pydevd
pydevd.stoptrace()
setproctitle.setproctitle('task executor (idle)')
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()
