def init_connection(self, recipe_name):
""" Initialize the slave connection
Calling this method will initialize the rpc connection to the
machine and initialize all the interfaces. Note, that it will
*not* configure the interfaces. They need to be configured
individually later on.
"""
hostname = self._hostname
port = self._port
m_id = self._id
logging.info("Connecting to RPC on machine %s (%s)", m_id, hostname)
connection = CtlSecSocket(socket.create_connection((hostname, port)))
connection.handshake(self._security)
self._msg_dispatcher.add_slave(self, connection)
hello, slave_desc = self._rpc_call("hello", recipe_name)
if hello != "hello":
msg = "Unable to establish RPC connection " \
"to machine %s, handshake failed!" % hostname
raise MachineError(msg)
self._slave_desc = slave_desc
for iface in self._interfaces:
iface.initialize()
self._configured = True
def remove_saved_machine_config(cls):
#removes previously saved configuration
cfg = None
try:
with open("/tmp/.lnst_machine_conf", "rb") as f:
cfg = cPickle.load(f)
except:
logging.info("No previous configuration found.")
return
if cfg:
logging.info("Cleaning up leftover configuration from previous "\
"config_only run.")
for hostname, machine in cfg["machines"].iteritems():
port = lnst_config.get_option("environment", "rpcport")
if test_tcp_connection(hostname, port):
s = socket.create_connection((hostname, port))
rpc_con = CtlSecSocket(s)
try:
rpc_con.handshake(machine["security"])
except SecSocketException:
logging.error("Failed authentication for machine %s" %\
hostname)
continue
rpc_msg = {
"type": "command",
"method_name": "machine_cleanup",
"args": []
}
logging.debug("Calling cleanup on slave '%s'" % hostname)
rpc_con.send_msg(rpc_msg)
while True:
msg = rpc_con.recv_msg()
if msg['type'] == 'result':
break
rpc_con.close()
if "libvirt_dom" in machine:
libvirt_dom = machine["libvirt_dom"]
domain_ctl = VirtDomainCtl(libvirt_dom)
logging.info("Detaching dynamically created interfaces.")
for i in machine["interfaces"]:
try:
domain_ctl.detach_interface(i)
except:
pass
logging.info("Removing dynamically created bridges.")
for br in cfg["bridges"]:
try:
net_ctl = VirtNetCtl(br)
net_ctl.cleanup()
except:
pass
os.remove("/tmp/.lnst_machine_conf")
def init_connection(self, recipe_name):
""" Initialize the slave connection
Calling this method will initialize the rpc connection to the
machine and initialize all the interfaces. Note, that it will
*not* configure the interfaces. They need to be configured
individually later on.
"""
hostname = self._hostname
port = self._port
m_id = self._id
logging.info("Connecting to RPC on machine %s (%s)", m_id, hostname)
connection = CtlSecSocket(socket.create_connection((hostname, port)))
connection.handshake(self._security)
self._msg_dispatcher.add_slave(self, connection)
hello, slave_desc = self._rpc_call("hello", recipe_name)
if hello != "hello":
msg = "Unable to establish RPC connection " \
"to machine %s, handshake failed!" % hostname
raise MachineError(msg)
slave_version = slave_desc["lnst_version"]
slave_is_git = self.is_git_version(slave_version)
ctl_version = lnst_config.version
ctl_is_git = self.is_git_version(ctl_version)
if slave_version != ctl_version:
if ctl_is_git and slave_is_git:
msg = "Controller and Slave '%s' git versions are different"\
% hostname
logging.warning(len(msg) * "=")
logging.warning(msg)
logging.warning(len(msg) * "=")
else:
msg = "Controller and Slave '%s' versions are not compatible!"\
% hostname
raise MachineError(msg)
self._slave_desc = slave_desc
devices = self._rpc_call("get_devices")
for if_index, dev in devices.items():
self._device_database[if_index] = Device(dev, self)
for iface in self._interfaces:
iface.initialize()
self._configured = True
def init_connection(self, recipe_name):
""" Initialize the slave connection
Calling this method will initialize the rpc connection to the
machine and initialize all the interfaces. Note, that it will
*not* configure the interfaces. They need to be configured
individually later on.
"""
hostname = self._hostname
port = self._port
m_id = self._id
logging.info("Connecting to RPC on machine %s (%s)", m_id, hostname)
connection = CtlSecSocket(socket.create_connection((hostname, port)))
connection.handshake(self._security)
self._msg_dispatcher.add_slave(self, connection)
hello, slave_desc = self._rpc_call("hello", recipe_name)
if hello != "hello":
msg = "Unable to establish RPC connection " \
"to machine %s, handshake failed!" % hostname
raise MachineError(msg)
slave_version = slave_desc["lnst_version"]
slave_is_git = self.is_git_version(slave_version)
ctl_version = lnst_config.version
ctl_is_git = self.is_git_version(ctl_version)
if slave_version != ctl_version:
if ctl_is_git and slave_is_git:
msg = "Controller and Slave '%s' git versions are different"\
% hostname
logging.warning(len(msg)*"=")
logging.warning(msg)
logging.warning(len(msg)*"=")
else:
msg = "Controller and Slave '%s' versions are not compatible!"\
% hostname
raise MachineError(msg)
self._slave_desc = slave_desc
devices = self._rpc_call("get_devices")
for if_index, dev in devices.items():
self._device_database[if_index] = Device(dev, self)
for iface in self._interfaces:
iface.initialize()
self._configured = True
def remove_saved_machine_config(cls):
#removes previously saved configuration
cfg = None
try:
with open("/tmp/.lnst_machine_conf", "rb") as f:
cfg = cPickle.load(f)
except:
logging.info("No previous configuration found.")
return
if cfg:
logging.info("Cleaning up leftover configuration from previous "\
"config_only run.")
for hostname, machine in cfg["machines"].iteritems():
port = lnst_config.get_option("environment", "rpcport")
if test_tcp_connection(hostname, port):
s = socket.create_connection((hostname, port))
rpc_con = CtlSecSocket(s)
try:
rpc_con.handshake(machine["security"])
except SecSocketException:
logging.error("Failed authentication for machine %s" %\
hostname)
continue
rpc_msg= {"type": "command",
"method_name": "machine_cleanup",
"args": []}
logging.debug("Calling cleanup on slave '%s'" % hostname)
rpc_con.send_msg(rpc_msg)
while True:
msg = rpc_con.recv_msg()
if msg['type'] == 'result':
break
rpc_con.close()
if "libvirt_dom" in machine:
libvirt_dom = machine["libvirt_dom"]
domain_ctl = VirtDomainCtl(libvirt_dom)
logging.info("Detaching dynamically created interfaces.")
for i in machine["interfaces"]:
try:
domain_ctl.detach_interface(i)
except:
pass
logging.info("Removing dynamically created bridges.")
for br in cfg["bridges"]:
try:
net_ctl = VirtNetCtl(br)
net_ctl.cleanup()
except:
pass
os.remove("/tmp/.lnst_machine_conf")
def _get_connection(self, hostname, port, sec_params):
""" Connects to machine
@param hostname Hostname of the machine
@param port Port of the machine
@return Connected socket if connection was successful, None otherwise
"""
try:
sock = socket.create_connection((hostname, port))
ret = CtlSecSocket(sock)
ret.handshake(sec_params)
return ret
except SecSocketException:
sys.stderr.write("Couldn't connect to host %s:%s, because "\
"security negotiation failed.\n" %
(hostname, port))
return None
except socket.error:
sys.stderr.write("Connection to remote host '%s:%s' failed\n"
% (hostname, port))
return None
def init_connection(self, timeout=None):
""" Initialize the slave connection
This will connect to the Slave, get it's description (should be
usable for matching), and checks version compatibility
"""
hostname = self._hostname
port = self._port
m_id = self._id
logging.info("Connecting to RPC on machine %s (%s)", m_id, hostname)
connection = CtlSecSocket(socket.create_connection((hostname, port),
timeout))
connection.handshake(self._security)
self._msg_dispatcher.add_slave(self, connection)
hello, slave_desc = self.rpc_call("hello")
if hello != "hello":
msg = "Unable to establish RPC connection " \
"to machine %s, handshake failed!" % hostname
raise MachineError(msg)
slave_version = slave_desc["lnst_version"]
if lnst_version != slave_version:
if lnst_version.is_git_version:
msg = ("Controller ({}) and Slave '{}' ({}) versions "
"are different".format(lnst_version, hostname,
slave_version))
logging.warning(len(msg)*"=")
logging.warning(msg)
logging.warning(len(msg)*"=")
else:
msg = ("Controller ({}) and Slave '{}' ({}) versions "
"are not compatible!".format(lnst_version, hostname,
slave_version))
raise MachineError(msg)
self._slave_desc = slave_desc
def _init_connection(self):
""" Initialize the slave connection
This will connect to the Slave, get it's description (should be
usable for matching), and checks version compatibility
"""
hostname = self._hostname
port = self._port
m_id = self._id
logging.info("Connecting to RPC on machine %s (%s)", m_id, hostname)
connection = CtlSecSocket(socket.create_connection((hostname, port)))
connection.handshake(self._security)
self._msg_dispatcher.add_slave(self, connection)
hello, slave_desc = self.rpc_call("hello")
if hello != "hello":
msg = "Unable to establish RPC connection " \
"to machine %s, handshake failed!" % hostname
raise MachineError(msg)
slave_version = slave_desc["lnst_version"]
slave_is_git = self.is_git_version(slave_version)
ctl_version = self._ctl_config.version
ctl_is_git = self.is_git_version(ctl_version)
if slave_version != ctl_version:
if ctl_is_git and slave_is_git:
msg = "Controller and Slave '%s' git versions are different"\
% hostname
logging.warning(len(msg)*"=")
logging.warning(msg)
logging.warning(len(msg)*"=")
else:
msg = "Controller and Slave '%s' versions are not compatible!"\
% hostname
raise MachineError(msg)
self._slave_desc = slave_desc
