#
#
-# Copyright (C) 2006, 2007 Google Inc.
+# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Google Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
"""
-# pylint: disable-msg=C0103,R0201,R0904
+# pylint: disable=C0103,R0201,R0904
# C0103: Invalid name, since call_ are not valid
# R0201: Method could be a function, we keep all rpcs instance methods
# as not to change them back and forth between static/instance methods
# if they need to start using instance attributes
# R0904: Too many public methods
-import os
import logging
import zlib
import base64
+import pycurl
+import threading
from ganeti import utils
from ganeti import objects
from ganeti import serializer
from ganeti import constants
from ganeti import errors
+from ganeti import netutils
+from ganeti import ssconf
+from ganeti import runtime
+from ganeti import compat
+from ganeti import rpc_defs
+
+# Special module generated at build time
+from ganeti import _generated_rpc
# pylint has a bug here, doesn't see this import
-import ganeti.http.client # pylint: disable-msg=W0611
+import ganeti.http.client # pylint: disable=W0611
+
+
+# Timeout for connecting to nodes (seconds)
+_RPC_CONNECT_TIMEOUT = 5
+_RPC_CLIENT_HEADERS = [
+ "Content-type: %s" % http.HTTP_APP_JSON,
+ "Expect:",
+ ]
-# Module level variable
-_http_manager = None
+# Various time constants for the timeout table
+_TMO_URGENT = 60 # one minute
+_TMO_FAST = 5 * 60 # five minutes
+_TMO_NORMAL = 15 * 60 # 15 minutes
+_TMO_SLOW = 3600 # one hour
+_TMO_4HRS = 4 * 3600
+_TMO_1DAY = 86400
+
+#: Special value to describe an offline host
+_OFFLINE = object()
def Init():
"""Initializes the module-global HTTP client manager.
- Must be called before using any RPC function.
+ Must be called before using any RPC function and while exactly one thread is
+ running.
"""
- global _http_manager # pylint: disable-msg=W0603
-
- assert not _http_manager, "RPC module initialized more than once"
+ # curl_global_init(3) and curl_global_cleanup(3) must be called with only
+ # one thread running. This check is just a safety measure -- it doesn't
+ # cover all cases.
+ assert threading.activeCount() == 1, \
+ "Found more than one active thread when initializing pycURL"
- http.InitSsl()
+ logging.info("Using PycURL %s", pycurl.version)
- _http_manager = http.client.HttpClientManager()
+ pycurl.global_init(pycurl.GLOBAL_ALL)
def Shutdown():
"""Stops the module-global HTTP client manager.
- Must be called before quitting the program.
+ Must be called before quitting the program and while exactly one thread is
+ running.
"""
- global _http_manager # pylint: disable-msg=W0603
+ pycurl.global_cleanup()
+
- if _http_manager:
- _http_manager.Shutdown()
- _http_manager = None
+def _ConfigRpcCurl(curl):
+ noded_cert = str(constants.NODED_CERT_FILE)
+
+ curl.setopt(pycurl.FOLLOWLOCATION, False)
+ curl.setopt(pycurl.CAINFO, noded_cert)
+ curl.setopt(pycurl.SSL_VERIFYHOST, 0)
+ curl.setopt(pycurl.SSL_VERIFYPEER, True)
+ curl.setopt(pycurl.SSLCERTTYPE, "PEM")
+ curl.setopt(pycurl.SSLCERT, noded_cert)
+ curl.setopt(pycurl.SSLKEYTYPE, "PEM")
+ curl.setopt(pycurl.SSLKEY, noded_cert)
+ curl.setopt(pycurl.CONNECTTIMEOUT, _RPC_CONNECT_TIMEOUT)
+
+
+def RunWithRPC(fn):
+ """RPC-wrapper decorator.
+
+ When applied to a function, it runs it with the RPC system
+ initialized, and it shutsdown the system afterwards. This means the
+ function must be called without RPC being initialized.
+
+ """
+ def wrapper(*args, **kwargs):
+ Init()
+ try:
+ return fn(*args, **kwargs)
+ finally:
+ Shutdown()
+ return wrapper
+
+
+def _Compress(data):
+ """Compresses a string for transport over RPC.
+
+ Small amounts of data are not compressed.
+
+ @type data: str
+ @param data: Data
+ @rtype: tuple
+ @return: Encoded data to send
+
+ """
+ # Small amounts of data are not compressed
+ if len(data) < 512:
+ return (constants.RPC_ENCODING_NONE, data)
+
+ # Compress with zlib and encode in base64
+ return (constants.RPC_ENCODING_ZLIB_BASE64,
+ base64.b64encode(zlib.compress(data, 3)))
class RpcResult(object):
self.fail_msg = None
self.payload = data[1]
- assert hasattr(self, "call")
- assert hasattr(self, "data")
- assert hasattr(self, "fail_msg")
- assert hasattr(self, "node")
- assert hasattr(self, "offline")
- assert hasattr(self, "payload")
+ for attr_name in ["call", "data", "fail_msg",
+ "node", "offline", "payload"]:
+ assert hasattr(self, attr_name), "Missing attribute %s" % attr_name
@staticmethod
def _EnsureErr(val):
else:
ec = errors.OpExecError
if ecode is not None:
- args = (msg, prereq)
+ args = (msg, ecode)
else:
args = (msg, )
- raise ec(*args) # pylint: disable-msg=W0142
-
+ raise ec(*args) # pylint: disable=W0142
-class Client:
- """RPC Client class.
- This class, given a (remote) method name, a list of parameters and a
- list of nodes, will contact (in parallel) all nodes, and return a
- dict of results (key: node name, value: result).
+def _SsconfResolver(ssconf_ips, node_list, _,
+ ssc=ssconf.SimpleStore,
+ nslookup_fn=netutils.Hostname.GetIP):
+ """Return addresses for given node names.
- One current bug is that generic failure is still signaled by
- 'False' result, which is not good. This overloading of values can
- cause bugs.
+ @type ssconf_ips: bool
+ @param ssconf_ips: Use the ssconf IPs
+ @type node_list: list
+ @param node_list: List of node names
+ @type ssc: class
+ @param ssc: SimpleStore class that is used to obtain node->ip mappings
+ @type nslookup_fn: callable
+ @param nslookup_fn: function use to do NS lookup
+ @rtype: list of tuple; (string, string)
+ @return: List of tuples containing node name and IP address
"""
- def __init__(self, procedure, body, port):
- self.procedure = procedure
- self.body = body
- self.port = port
- self.nc = {}
+ ss = ssc()
+ family = ss.GetPrimaryIPFamily()
- self._ssl_params = \
- http.HttpSslParams(ssl_key_path=constants.NODED_CERT_FILE,
- ssl_cert_path=constants.NODED_CERT_FILE)
+ if ssconf_ips:
+ iplist = ss.GetNodePrimaryIPList()
+ ipmap = dict(entry.split() for entry in iplist)
+ else:
+ ipmap = {}
- def ConnectList(self, node_list, address_list=None):
- """Add a list of nodes to the target nodes.
+ result = []
+ for node in node_list:
+ ip = ipmap.get(node)
+ if ip is None:
+ ip = nslookup_fn(node, family=family)
+ result.append((node, ip))
- @type node_list: list
- @param node_list: the list of node names to connect
- @type address_list: list or None
- @keyword address_list: either None or a list with node addresses,
- which must have the same length as the node list
+ return result
- """
- if address_list is None:
- address_list = [None for _ in node_list]
- else:
- assert len(node_list) == len(address_list), \
- "Name and address lists should have the same length"
- for node, address in zip(node_list, address_list):
- self.ConnectNode(node, address)
- def ConnectNode(self, name, address=None):
- """Add a node to the target list.
-
- @type name: str
- @param name: the node name
- @type address: str
- @keyword address: the node address, if known
+class _StaticResolver:
+ def __init__(self, addresses):
+ """Initializes this class.
"""
- if address is None:
- address = name
-
- self.nc[name] = \
- http.client.HttpClientRequest(address, self.port, http.HTTP_PUT,
- "/%s" % self.procedure,
- post_data=self.body,
- ssl_params=self._ssl_params,
- ssl_verify_peer=True)
-
- def GetResults(self):
- """Call nodes and return results.
+ self._addresses = addresses
- @rtype: list
- @return: List of RPC results
+ def __call__(self, hosts, _):
+ """Returns static addresses for hosts.
"""
- assert _http_manager, "RPC module not initialized"
-
- _http_manager.ExecRequests(self.nc.values())
-
- results = {}
-
- for name, req in self.nc.iteritems():
- if req.success and req.resp_status_code == http.HTTP_OK:
- results[name] = RpcResult(data=serializer.LoadJson(req.resp_body),
- node=name, call=self.procedure)
- continue
-
- # TODO: Better error reporting
- if req.error:
- msg = req.error
- else:
- msg = req.resp_body
-
- logging.error("RPC error in %s from node %s: %s",
- self.procedure, name, msg)
- results[name] = RpcResult(data=msg, failed=True, node=name,
- call=self.procedure)
+ assert len(hosts) == len(self._addresses)
+ return zip(hosts, self._addresses)
- return results
+def _CheckConfigNode(name, node, accept_offline_node):
+ """Checks if a node is online.
-def _EncodeImportExportIO(ieio, ieioargs):
- """Encodes import/export I/O information.
+ @type name: string
+ @param name: Node name
+ @type node: L{objects.Node} or None
+ @param node: Node object
"""
- if ieio == constants.IEIO_RAW_DISK:
- assert len(ieioargs) == 1
- return (ieioargs[0].ToDict(), )
+ if node is None:
+ # Depend on DNS for name resolution
+ ip = name
+ elif node.offline and not accept_offline_node:
+ ip = _OFFLINE
+ else:
+ ip = node.primary_ip
+ return (name, ip)
- if ieio == constants.IEIO_SCRIPT:
- assert len(ieioargs) == 2
- return (ieioargs[0].ToDict(), ieioargs[1])
- return ieioargs
+def _NodeConfigResolver(single_node_fn, all_nodes_fn, hosts, opts):
+ """Calculate node addresses using configuration.
+ """
+ accept_offline_node = (opts is rpc_defs.ACCEPT_OFFLINE_NODE)
-class RpcRunner(object):
- """RPC runner class"""
-
- def __init__(self, cfg):
- """Initialized the rpc runner.
-
- @type cfg: C{config.ConfigWriter}
- @param cfg: the configuration object that will be used to get data
- about the cluster
+ assert accept_offline_node or opts is None, "Unknown option"
- """
- self._cfg = cfg
- self.port = utils.GetDaemonPort(constants.NODED)
+ # Special case for single-host lookups
+ if len(hosts) == 1:
+ (name, ) = hosts
+ return [_CheckConfigNode(name, single_node_fn(name), accept_offline_node)]
+ else:
+ all_nodes = all_nodes_fn()
+ return [_CheckConfigNode(name, all_nodes.get(name, None),
+ accept_offline_node)
+ for name in hosts]
- def _InstDict(self, instance, hvp=None, bep=None):
- """Convert the given instance to a dict.
- This is done via the instance's ToDict() method and additionally
- we fill the hvparams with the cluster defaults.
+class _RpcProcessor:
+ def __init__(self, resolver, port, lock_monitor_cb=None):
+ """Initializes this class.
- @type instance: L{objects.Instance}
- @param instance: an Instance object
- @type hvp: dict or None
- @param hvp: a dictionary with overridden hypervisor parameters
- @type bep: dict or None
- @param bep: a dictionary with overridden backend parameters
- @rtype: dict
- @return: the instance dict, with the hvparams filled with the
- cluster defaults
+ @param resolver: callable accepting a list of hostnames, returning a list
+ of tuples containing name and IP address (IP address can be the name or
+ the special value L{_OFFLINE} to mark offline machines)
+ @type port: int
+ @param port: TCP port
+ @param lock_monitor_cb: Callable for registering with lock monitor
"""
- idict = instance.ToDict()
- cluster = self._cfg.GetClusterInfo()
- idict["hvparams"] = cluster.FillHV(instance)
- if hvp is not None:
- idict["hvparams"].update(hvp)
- idict["beparams"] = cluster.FillBE(instance)
- if bep is not None:
- idict["beparams"].update(bep)
- for nic in idict["nics"]:
- nic['nicparams'] = objects.FillDict(
- cluster.nicparams[constants.PP_DEFAULT],
- nic['nicparams'])
- return idict
+ self._resolver = resolver
+ self._port = port
+ self._lock_monitor_cb = lock_monitor_cb
- def _ConnectList(self, client, node_list, call):
- """Helper for computing node addresses.
+ @staticmethod
+ def _PrepareRequests(hosts, port, procedure, body, read_timeout):
+ """Prepares requests by sorting offline hosts into separate list.
- @type client: L{ganeti.rpc.Client}
- @param client: a C{Client} instance
- @type node_list: list
- @param node_list: the node list we should connect
- @type call: string
- @param call: the name of the remote procedure call, for filling in
- correctly any eventual offline nodes' results
+ @type body: dict
+ @param body: a dictionary with per-host body data
"""
- all_nodes = self._cfg.GetAllNodesInfo()
- name_list = []
- addr_list = []
- skip_dict = {}
- for node in node_list:
- if node in all_nodes:
- if all_nodes[node].offline:
- skip_dict[node] = RpcResult(node=node, offline=True, call=call)
- continue
- val = all_nodes[node].primary_ip
+ results = {}
+ requests = {}
+
+ assert isinstance(body, dict)
+ assert len(body) == len(hosts)
+ assert compat.all(isinstance(v, str) for v in body.values())
+ assert frozenset(map(compat.fst, hosts)) == frozenset(body.keys()), \
+ "%s != %s" % (hosts, body.keys())
+
+ for (name, ip) in hosts:
+ if ip is _OFFLINE:
+ # Node is marked as offline
+ results[name] = RpcResult(node=name, offline=True, call=procedure)
else:
- val = None
- addr_list.append(val)
- name_list.append(node)
- if name_list:
- client.ConnectList(name_list, address_list=addr_list)
- return skip_dict
-
- def _ConnectNode(self, client, node, call):
- """Helper for computing one node's address.
-
- @type client: L{ganeti.rpc.Client}
- @param client: a C{Client} instance
- @type node: str
- @param node: the node we should connect
- @type call: string
- @param call: the name of the remote procedure call, for filling in
- correctly any eventual offline nodes' results
-
- """
- node_info = self._cfg.GetNodeInfo(node)
- if node_info is not None:
- if node_info.offline:
- return RpcResult(node=node, offline=True, call=call)
- addr = node_info.primary_ip
- else:
- addr = None
- client.ConnectNode(node, address=addr)
-
- def _MultiNodeCall(self, node_list, procedure, args):
- """Helper for making a multi-node call
-
- """
- body = serializer.DumpJson(args, indent=False)
- c = Client(procedure, body, self.port)
- skip_dict = self._ConnectList(c, node_list, procedure)
- skip_dict.update(c.GetResults())
- return skip_dict
-
- @classmethod
- def _StaticMultiNodeCall(cls, node_list, procedure, args,
- address_list=None):
- """Helper for making a multi-node static call
-
- """
- body = serializer.DumpJson(args, indent=False)
- c = Client(procedure, body, utils.GetDaemonPort(constants.NODED))
- c.ConnectList(node_list, address_list=address_list)
- return c.GetResults()
+ requests[name] = \
+ http.client.HttpClientRequest(str(ip), port,
+ http.HTTP_POST, str("/%s" % procedure),
+ headers=_RPC_CLIENT_HEADERS,
+ post_data=body[name],
+ read_timeout=read_timeout,
+ nicename="%s/%s" % (name, procedure),
+ curl_config_fn=_ConfigRpcCurl)
- def _SingleNodeCall(self, node, procedure, args):
- """Helper for making a single-node call
-
- """
- body = serializer.DumpJson(args, indent=False)
- c = Client(procedure, body, self.port)
- result = self._ConnectNode(c, node, procedure)
- if result is None:
- # we did connect, node is not offline
- result = c.GetResults()[node]
- return result
-
- @classmethod
- def _StaticSingleNodeCall(cls, node, procedure, args):
- """Helper for making a single-node static call
-
- """
- body = serializer.DumpJson(args, indent=False)
- c = Client(procedure, body, utils.GetDaemonPort(constants.NODED))
- c.ConnectNode(node)
- return c.GetResults()[node]
+ return (results, requests)
@staticmethod
- def _Compress(data):
- """Compresses a string for transport over RPC.
-
- Small amounts of data are not compressed.
-
- @type data: str
- @param data: Data
- @rtype: tuple
- @return: Encoded data to send
-
- """
- # Small amounts of data are not compressed
- if len(data) < 512:
- return (constants.RPC_ENCODING_NONE, data)
-
- # Compress with zlib and encode in base64
- return (constants.RPC_ENCODING_ZLIB_BASE64,
- base64.b64encode(zlib.compress(data, 3)))
-
- #
- # Begin RPC calls
- #
-
- def call_lv_list(self, node_list, vg_name):
- """Gets the logical volumes present in a given volume group.
-
- This is a multi-node call.
-
- """
- return self._MultiNodeCall(node_list, "lv_list", [vg_name])
-
- def call_vg_list(self, node_list):
- """Gets the volume group list.
-
- This is a multi-node call.
-
- """
- return self._MultiNodeCall(node_list, "vg_list", [])
-
- def call_storage_list(self, node_list, su_name, su_args, name, fields):
- """Get list of storage units.
-
- This is a multi-node call.
-
- """
- return self._MultiNodeCall(node_list, "storage_list",
- [su_name, su_args, name, fields])
-
- def call_storage_modify(self, node, su_name, su_args, name, changes):
- """Modify a storage unit.
-
- This is a single-node call.
-
- """
- return self._SingleNodeCall(node, "storage_modify",
- [su_name, su_args, name, changes])
-
- def call_storage_execute(self, node, su_name, su_args, name, op):
- """Executes an operation on a storage unit.
-
- This is a single-node call.
-
- """
- return self._SingleNodeCall(node, "storage_execute",
- [su_name, su_args, name, op])
-
- def call_bridges_exist(self, node, bridges_list):
- """Checks if a node has all the bridges given.
-
- This method checks if all bridges given in the bridges_list are
- present on the remote node, so that an instance that uses interfaces
- on those bridges can be started.
-
- This is a single-node call.
-
- """
- return self._SingleNodeCall(node, "bridges_exist", [bridges_list])
-
- def call_instance_start(self, node, instance, hvp, bep):
- """Starts an instance.
-
- This is a single-node call.
-
- """
- idict = self._InstDict(instance, hvp=hvp, bep=bep)
- return self._SingleNodeCall(node, "instance_start", [idict])
-
- def call_instance_shutdown(self, node, instance, timeout):
- """Stops an instance.
-
- This is a single-node call.
-
- """
- return self._SingleNodeCall(node, "instance_shutdown",
- [self._InstDict(instance), timeout])
-
- def call_migration_info(self, node, instance):
- """Gather the information necessary to prepare an instance migration.
-
- This is a single-node call.
-
- @type node: string
- @param node: the node on which the instance is currently running
- @type instance: C{objects.Instance}
- @param instance: the instance definition
-
- """
- return self._SingleNodeCall(node, "migration_info",
- [self._InstDict(instance)])
-
- def call_accept_instance(self, node, instance, info, target):
- """Prepare a node to accept an instance.
-
- This is a single-node call.
-
- @type node: string
- @param node: the target node for the migration
- @type instance: C{objects.Instance}
- @param instance: the instance definition
- @type info: opaque/hypervisor specific (string/data)
- @param info: result for the call_migration_info call
- @type target: string
- @param target: target hostname (usually ip address) (on the node itself)
-
- """
- return self._SingleNodeCall(node, "accept_instance",
- [self._InstDict(instance), info, target])
-
- def call_finalize_migration(self, node, instance, info, success):
- """Finalize any target-node migration specific operation.
-
- This is called both in case of a successful migration and in case of error
- (in which case it should abort the migration).
-
- This is a single-node call.
-
- @type node: string
- @param node: the target node for the migration
- @type instance: C{objects.Instance}
- @param instance: the instance definition
- @type info: opaque/hypervisor specific (string/data)
- @param info: result for the call_migration_info call
- @type success: boolean
- @param success: whether the migration was a success or a failure
-
- """
- return self._SingleNodeCall(node, "finalize_migration",
- [self._InstDict(instance), info, success])
-
- def call_instance_migrate(self, node, instance, target, live):
- """Migrate an instance.
-
- This is a single-node call.
-
- @type node: string
- @param node: the node on which the instance is currently running
- @type instance: C{objects.Instance}
- @param instance: the instance definition
- @type target: string
- @param target: the target node name
- @type live: boolean
- @param live: whether the migration should be done live or not (the
- interpretation of this parameter is left to the hypervisor)
-
- """
- return self._SingleNodeCall(node, "instance_migrate",
- [self._InstDict(instance), target, live])
-
- def call_instance_reboot(self, node, inst, reboot_type, shutdown_timeout):
- """Reboots an instance.
-
- This is a single-node call.
-
- """
- return self._SingleNodeCall(node, "instance_reboot",
- [self._InstDict(inst), reboot_type,
- shutdown_timeout])
-
- def call_instance_os_add(self, node, inst, reinstall, debug):
- """Installs an OS on the given instance.
-
- This is a single-node call.
-
- """
- return self._SingleNodeCall(node, "instance_os_add",
- [self._InstDict(inst), reinstall, debug])
-
- def call_instance_run_rename(self, node, inst, old_name, debug):
- """Run the OS rename script for an instance.
-
- This is a single-node call.
-
- """
- return self._SingleNodeCall(node, "instance_run_rename",
- [self._InstDict(inst), old_name, debug])
-
- def call_instance_info(self, node, instance, hname):
- """Returns information about a single instance.
-
- This is a single-node call.
-
- @type node: list
- @param node: the list of nodes to query
- @type instance: string
- @param instance: the instance name
- @type hname: string
- @param hname: the hypervisor type of the instance
-
- """
- return self._SingleNodeCall(node, "instance_info", [instance, hname])
-
- def call_instance_migratable(self, node, instance):
- """Checks whether the given instance can be migrated.
-
- This is a single-node call.
-
- @param node: the node to query
- @type instance: L{objects.Instance}
- @param instance: the instance to check
-
-
- """
- return self._SingleNodeCall(node, "instance_migratable",
- [self._InstDict(instance)])
-
- def call_all_instances_info(self, node_list, hypervisor_list):
- """Returns information about all instances on the given nodes.
-
- This is a multi-node call.
-
- @type node_list: list
- @param node_list: the list of nodes to query
- @type hypervisor_list: list
- @param hypervisor_list: the hypervisors to query for instances
-
- """
- return self._MultiNodeCall(node_list, "all_instances_info",
- [hypervisor_list])
-
- def call_instance_list(self, node_list, hypervisor_list):
- """Returns the list of running instances on a given node.
-
- This is a multi-node call.
-
- @type node_list: list
- @param node_list: the list of nodes to query
- @type hypervisor_list: list
- @param hypervisor_list: the hypervisors to query for instances
-
- """
- return self._MultiNodeCall(node_list, "instance_list", [hypervisor_list])
-
- def call_node_tcp_ping(self, node, source, target, port, timeout,
- live_port_needed):
- """Do a TcpPing on the remote node
-
- This is a single-node call.
-
- """
- return self._SingleNodeCall(node, "node_tcp_ping",
- [source, target, port, timeout,
- live_port_needed])
-
- def call_node_has_ip_address(self, node, address):
- """Checks if a node has the given IP address.
-
- This is a single-node call.
-
- """
- return self._SingleNodeCall(node, "node_has_ip_address", [address])
-
- def call_node_info(self, node_list, vg_name, hypervisor_type):
- """Return node information.
-
- This will return memory information and volume group size and free
- space.
-
- This is a multi-node call.
-
- @type node_list: list
- @param node_list: the list of nodes to query
- @type vg_name: C{string}
- @param vg_name: the name of the volume group to ask for disk space
- information
- @type hypervisor_type: C{str}
- @param hypervisor_type: the name of the hypervisor to ask for
- memory information
-
- """
- return self._MultiNodeCall(node_list, "node_info",
- [vg_name, hypervisor_type])
-
- def call_node_add(self, node, dsa, dsapub, rsa, rsapub, ssh, sshpub):
- """Add a node to the cluster.
-
- This is a single-node call.
-
- """
- return self._SingleNodeCall(node, "node_add",
- [dsa, dsapub, rsa, rsapub, ssh, sshpub])
-
- def call_node_verify(self, node_list, checkdict, cluster_name):
- """Request verification of given parameters.
-
- This is a multi-node call.
-
- """
- return self._MultiNodeCall(node_list, "node_verify",
- [checkdict, cluster_name])
-
- @classmethod
- def call_node_start_master(cls, node, start_daemons, no_voting):
- """Tells a node to activate itself as a master.
-
- This is a single-node call.
-
- """
- return cls._StaticSingleNodeCall(node, "node_start_master",
- [start_daemons, no_voting])
-
- @classmethod
- def call_node_stop_master(cls, node, stop_daemons):
- """Tells a node to demote itself from master status.
-
- This is a single-node call.
-
- """
- return cls._StaticSingleNodeCall(node, "node_stop_master", [stop_daemons])
-
- @classmethod
- def call_master_info(cls, node_list):
- """Query master info.
-
- This is a multi-node call.
-
- """
- # TODO: should this method query down nodes?
- return cls._StaticMultiNodeCall(node_list, "master_info", [])
-
- @classmethod
- def call_version(cls, node_list):
- """Query node version.
-
- This is a multi-node call.
-
- """
- return cls._StaticMultiNodeCall(node_list, "version", [])
-
- def call_blockdev_create(self, node, bdev, size, owner, on_primary, info):
- """Request creation of a given block device.
-
- This is a single-node call.
-
- """
- return self._SingleNodeCall(node, "blockdev_create",
- [bdev.ToDict(), size, owner, on_primary, info])
-
- def call_blockdev_remove(self, node, bdev):
- """Request removal of a given block device.
-
- This is a single-node call.
-
- """
- return self._SingleNodeCall(node, "blockdev_remove", [bdev.ToDict()])
-
- def call_blockdev_rename(self, node, devlist):
- """Request rename of the given block devices.
-
- This is a single-node call.
+ def _CombineResults(results, requests, procedure):
+ """Combines pre-computed results for offline hosts with actual call results.
"""
- return self._SingleNodeCall(node, "blockdev_rename",
- [(d.ToDict(), uid) for d, uid in devlist])
-
- def call_blockdev_assemble(self, node, disk, owner, on_primary):
- """Request assembling of a given block device.
-
- This is a single-node call.
-
- """
- return self._SingleNodeCall(node, "blockdev_assemble",
- [disk.ToDict(), owner, on_primary])
-
- def call_blockdev_shutdown(self, node, disk):
- """Request shutdown of a given block device.
-
- This is a single-node call.
-
- """
- return self._SingleNodeCall(node, "blockdev_shutdown", [disk.ToDict()])
-
- def call_blockdev_addchildren(self, node, bdev, ndevs):
- """Request adding a list of children to a (mirroring) device.
-
- This is a single-node call.
-
- """
- return self._SingleNodeCall(node, "blockdev_addchildren",
- [bdev.ToDict(),
- [disk.ToDict() for disk in ndevs]])
-
- def call_blockdev_removechildren(self, node, bdev, ndevs):
- """Request removing a list of children from a (mirroring) device.
-
- This is a single-node call.
-
- """
- return self._SingleNodeCall(node, "blockdev_removechildren",
- [bdev.ToDict(),
- [disk.ToDict() for disk in ndevs]])
-
- def call_blockdev_getmirrorstatus(self, node, disks):
- """Request status of a (mirroring) device.
-
- This is a single-node call.
-
- """
- result = self._SingleNodeCall(node, "blockdev_getmirrorstatus",
- [dsk.ToDict() for dsk in disks])
- if not result.fail_msg:
- result.payload = [objects.BlockDevStatus.FromDict(i)
- for i in result.payload]
- return result
-
- def call_blockdev_find(self, node, disk):
- """Request identification of a given block device.
-
- This is a single-node call.
-
- """
- result = self._SingleNodeCall(node, "blockdev_find", [disk.ToDict()])
- if not result.fail_msg and result.payload is not None:
- result.payload = objects.BlockDevStatus.FromDict(result.payload)
- return result
-
- def call_blockdev_close(self, node, instance_name, disks):
- """Closes the given block devices.
-
- This is a single-node call.
-
- """
- params = [instance_name, [cf.ToDict() for cf in disks]]
- return self._SingleNodeCall(node, "blockdev_close", params)
-
- def call_blockdev_getsizes(self, node, disks):
- """Returns the size of the given disks.
-
- This is a single-node call.
-
- """
- params = [[cf.ToDict() for cf in disks]]
- return self._SingleNodeCall(node, "blockdev_getsize", params)
+ for name, req in requests.items():
+ if req.success and req.resp_status_code == http.HTTP_OK:
+ host_result = RpcResult(data=serializer.LoadJson(req.resp_body),
+ node=name, call=procedure)
+ else:
+ # TODO: Better error reporting
+ if req.error:
+ msg = req.error
+ else:
+ msg = req.resp_body
- def call_drbd_disconnect_net(self, node_list, nodes_ip, disks):
- """Disconnects the network of the given drbd devices.
+ logging.error("RPC error in %s on node %s: %s", procedure, name, msg)
+ host_result = RpcResult(data=msg, failed=True, node=name,
+ call=procedure)
- This is a multi-node call.
+ results[name] = host_result
- """
- return self._MultiNodeCall(node_list, "drbd_disconnect_net",
- [nodes_ip, [cf.ToDict() for cf in disks]])
+ return results
- def call_drbd_attach_net(self, node_list, nodes_ip,
- disks, instance_name, multimaster):
- """Disconnects the given drbd devices.
+ def __call__(self, hosts, procedure, body, read_timeout, resolver_opts,
+ _req_process_fn=None):
+ """Makes an RPC request to a number of nodes.
- This is a multi-node call.
+ @type hosts: sequence
+ @param hosts: Hostnames
+ @type procedure: string
+ @param procedure: Request path
+ @type body: dictionary
+ @param body: dictionary with request bodies per host
+ @type read_timeout: int or None
+ @param read_timeout: Read timeout for request
"""
- return self._MultiNodeCall(node_list, "drbd_attach_net",
- [nodes_ip, [cf.ToDict() for cf in disks],
- instance_name, multimaster])
+ assert read_timeout is not None, \
+ "Missing RPC read timeout for procedure '%s'" % procedure
- def call_drbd_wait_sync(self, node_list, nodes_ip, disks):
- """Waits for the synchronization of drbd devices is complete.
+ if _req_process_fn is None:
+ _req_process_fn = http.client.ProcessRequests
- This is a multi-node call.
+ (results, requests) = \
+ self._PrepareRequests(self._resolver(hosts, resolver_opts), self._port,
+ procedure, body, read_timeout)
- """
- return self._MultiNodeCall(node_list, "drbd_wait_sync",
- [nodes_ip, [cf.ToDict() for cf in disks]])
+ _req_process_fn(requests.values(), lock_monitor_cb=self._lock_monitor_cb)
- @classmethod
- def call_upload_file(cls, node_list, file_name, address_list=None):
- """Upload a file.
+ assert not frozenset(results).intersection(requests)
- The node will refuse the operation in case the file is not on the
- approved file list.
+ return self._CombineResults(results, requests, procedure)
- This is a multi-node call.
- @type node_list: list
- @param node_list: the list of node names to upload to
- @type file_name: str
- @param file_name: the filename to upload
- @type address_list: list or None
- @keyword address_list: an optional list of node addresses, in order
- to optimize the RPC speed
+class _RpcClientBase:
+ def __init__(self, resolver, encoder_fn, lock_monitor_cb=None,
+ _req_process_fn=None):
+ """Initializes this class.
"""
- file_contents = utils.ReadFile(file_name)
- data = cls._Compress(file_contents)
- st = os.stat(file_name)
- params = [file_name, data, st.st_mode, st.st_uid, st.st_gid,
- st.st_atime, st.st_mtime]
- return cls._StaticMultiNodeCall(node_list, "upload_file", params,
- address_list=address_list)
+ proc = _RpcProcessor(resolver,
+ netutils.GetDaemonPort(constants.NODED),
+ lock_monitor_cb=lock_monitor_cb)
+ self._proc = compat.partial(proc, _req_process_fn=_req_process_fn)
+ self._encoder = compat.partial(self._EncodeArg, encoder_fn)
- @classmethod
- def call_write_ssconf_files(cls, node_list, values):
- """Write ssconf files.
-
- This is a multi-node call.
+ @staticmethod
+ def _EncodeArg(encoder_fn, (argkind, value)):
+ """Encode argument.
"""
- return cls._StaticMultiNodeCall(node_list, "write_ssconf_files", [values])
-
- def call_os_diagnose(self, node_list):
- """Request a diagnose of OS definitions.
+ if argkind is None:
+ return value
+ else:
+ return encoder_fn(argkind)(value)
- This is a multi-node call.
+ def _Call(self, cdef, node_list, args):
+ """Entry point for automatically generated RPC wrappers.
"""
- return self._MultiNodeCall(node_list, "os_diagnose", [])
-
- def call_os_get(self, node, name):
- """Returns an OS definition.
-
- This is a single-node call.
+ (procedure, _, resolver_opts, timeout, argdefs,
+ prep_fn, postproc_fn, _) = cdef
- """
- result = self._SingleNodeCall(node, "os_get", [name])
- if not result.fail_msg and isinstance(result.payload, dict):
- result.payload = objects.OS.FromDict(result.payload)
- return result
+ if callable(timeout):
+ read_timeout = timeout(args)
+ else:
+ read_timeout = timeout
- def call_hooks_runner(self, node_list, hpath, phase, env):
- """Call the hooks runner.
+ if callable(resolver_opts):
+ req_resolver_opts = resolver_opts(args)
+ else:
+ req_resolver_opts = resolver_opts
- Args:
- - op: the OpCode instance
- - env: a dictionary with the environment
+ if len(args) != len(argdefs):
+ raise errors.ProgrammerError("Number of passed arguments doesn't match")
- This is a multi-node call.
+ enc_args = map(self._encoder, zip(map(compat.snd, argdefs), args))
+ if prep_fn is None:
+ # for a no-op prep_fn, we serialise the body once, and then we
+ # reuse it in the dictionary values
+ body = serializer.DumpJson(enc_args)
+ pnbody = dict((n, body) for n in node_list)
+ else:
+ # for a custom prep_fn, we pass the encoded arguments and the
+ # node name to the prep_fn, and we serialise its return value
+ assert callable(prep_fn)
+ pnbody = dict((n, serializer.DumpJson(prep_fn(n, enc_args)))
+ for n in node_list)
+
+ result = self._proc(node_list, procedure, pnbody, read_timeout,
+ req_resolver_opts)
+
+ if postproc_fn:
+ return dict(map(lambda (key, value): (key, postproc_fn(value)),
+ result.items()))
+ else:
+ return result
- """
- params = [hpath, phase, env]
- return self._MultiNodeCall(node_list, "hooks_runner", params)
- def call_iallocator_runner(self, node, name, idata):
- """Call an iallocator on a remote node
+def _ObjectToDict(value):
+ """Converts an object to a dictionary.
- Args:
- - name: the iallocator name
- - input: the json-encoded input string
+ @note: See L{objects}.
- This is a single-node call.
+ """
+ return value.ToDict()
- """
- return self._SingleNodeCall(node, "iallocator_runner", [name, idata])
- def call_blockdev_grow(self, node, cf_bdev, amount):
- """Request a snapshot of the given block device.
+def _ObjectListToDict(value):
+ """Converts a list of L{objects} to dictionaries.
- This is a single-node call.
+ """
+ return map(_ObjectToDict, value)
- """
- return self._SingleNodeCall(node, "blockdev_grow",
- [cf_bdev.ToDict(), amount])
- def call_blockdev_export(self, node, cf_bdev,
- dest_node, dest_path, cluster_name):
- """Export a given disk to another node.
+def _EncodeNodeToDiskDict(value):
+ """Encodes a dictionary with node name as key and disk objects as values.
- This is a single-node call.
+ """
+ return dict((name, _ObjectListToDict(disks))
+ for name, disks in value.items())
- """
- return self._SingleNodeCall(node, "blockdev_export",
- [cf_bdev.ToDict(), dest_node, dest_path,
- cluster_name])
- def call_blockdev_snapshot(self, node, cf_bdev):
- """Request a snapshot of the given block device.
+def _PrepareFileUpload(getents_fn, filename):
+ """Loads a file and prepares it for an upload to nodes.
- This is a single-node call.
+ """
+ statcb = utils.FileStatHelper()
+ data = _Compress(utils.ReadFile(filename, preread=statcb))
+ st = statcb.st
- """
- return self._SingleNodeCall(node, "blockdev_snapshot", [cf_bdev.ToDict()])
+ if getents_fn is None:
+ getents_fn = runtime.GetEnts
- def call_finalize_export(self, node, instance, snap_disks):
- """Request the completion of an export operation.
+ getents = getents_fn()
- This writes the export config file, etc.
+ return [filename, data, st.st_mode, getents.LookupUid(st.st_uid),
+ getents.LookupGid(st.st_gid), st.st_atime, st.st_mtime]
- This is a single-node call.
- """
- flat_disks = []
- for disk in snap_disks:
- if isinstance(disk, bool):
- flat_disks.append(disk)
- else:
- flat_disks.append(disk.ToDict())
+def _PrepareFinalizeExportDisks(snap_disks):
+ """Encodes disks for finalizing export.
- return self._SingleNodeCall(node, "finalize_export",
- [self._InstDict(instance), flat_disks])
+ """
+ flat_disks = []
- def call_export_info(self, node, path):
- """Queries the export information in a given path.
+ for disk in snap_disks:
+ if isinstance(disk, bool):
+ flat_disks.append(disk)
+ else:
+ flat_disks.append(disk.ToDict())
- This is a single-node call.
+ return flat_disks
- """
- return self._SingleNodeCall(node, "export_info", [path])
- def call_export_list(self, node_list):
- """Gets the stored exports list.
+def _EncodeImportExportIO((ieio, ieioargs)):
+ """Encodes import/export I/O information.
- This is a multi-node call.
+ """
+ if ieio == constants.IEIO_RAW_DISK:
+ assert len(ieioargs) == 1
+ return (ieio, (ieioargs[0].ToDict(), ))
- """
- return self._MultiNodeCall(node_list, "export_list", [])
+ if ieio == constants.IEIO_SCRIPT:
+ assert len(ieioargs) == 2
+ return (ieio, (ieioargs[0].ToDict(), ieioargs[1]))
- def call_export_remove(self, node, export):
- """Requests removal of a given export.
+ return (ieio, ieioargs)
- This is a single-node call.
- """
- return self._SingleNodeCall(node, "export_remove", [export])
+def _EncodeBlockdevRename(value):
+ """Encodes information for renaming block devices.
- @classmethod
- def call_node_leave_cluster(cls, node, modify_ssh_setup):
- """Requests a node to clean the cluster information it has.
+ """
+ return [(d.ToDict(), uid) for d, uid in value]
- This will remove the configuration information from the ganeti data
- dir.
- This is a single-node call.
+def _AnnotateDParamsDRBD(disk, (drbd_params, data_params, meta_params)):
+ """Annotates just DRBD disks layouts.
- """
- return cls._StaticSingleNodeCall(node, "node_leave_cluster",
- [modify_ssh_setup])
+ """
+ assert disk.dev_type == constants.LD_DRBD8
- def call_node_volumes(self, node_list):
- """Gets all volumes on node(s).
+ disk.params = objects.FillDict(drbd_params, disk.params)
+ (dev_data, dev_meta) = disk.children
+ dev_data.params = objects.FillDict(data_params, dev_data.params)
+ dev_meta.params = objects.FillDict(meta_params, dev_meta.params)
- This is a multi-node call.
+ return disk
- """
- return self._MultiNodeCall(node_list, "node_volumes", [])
- def call_node_demote_from_mc(self, node):
- """Demote a node from the master candidate role.
+def _AnnotateDParamsGeneric(disk, (params, )):
+ """Generic disk parameter annotation routine.
- This is a single-node call.
+ """
+ assert disk.dev_type != constants.LD_DRBD8
- """
- return self._SingleNodeCall(node, "node_demote_from_mc", [])
+ disk.params = objects.FillDict(params, disk.params)
- def call_node_powercycle(self, node, hypervisor):
- """Tries to powercycle a node.
+ return disk
- This is a single-node call.
- """
- return self._SingleNodeCall(node, "node_powercycle", [hypervisor])
+def AnnotateDiskParams(template, disks, disk_params):
+ """Annotates the disk objects with the disk parameters.
- def call_test_delay(self, node_list, duration):
- """Sleep for a fixed time on given node(s).
+ @param template: The disk template used
+ @param disks: The list of disks objects to annotate
+ @param disk_params: The disk paramaters for annotation
+ @returns: A list of disk objects annotated
- This is a multi-node call.
+ """
+ ld_params = objects.Disk.ComputeLDParams(template, disk_params)
- """
- return self._MultiNodeCall(node_list, "test_delay", [duration])
+ if template == constants.DT_DRBD8:
+ annotation_fn = _AnnotateDParamsDRBD
+ elif template == constants.DT_DISKLESS:
+ annotation_fn = lambda disk, _: disk
+ else:
+ annotation_fn = _AnnotateDParamsGeneric
- def call_file_storage_dir_create(self, node, file_storage_dir):
- """Create the given file storage directory.
+ new_disks = []
+ for disk in disks:
+ new_disks.append(annotation_fn(disk.Copy(), ld_params))
- This is a single-node call.
+ return new_disks
- """
- return self._SingleNodeCall(node, "file_storage_dir_create",
- [file_storage_dir])
- def call_file_storage_dir_remove(self, node, file_storage_dir):
- """Remove the given file storage directory.
+#: Generic encoders
+_ENCODERS = {
+ rpc_defs.ED_OBJECT_DICT: _ObjectToDict,
+ rpc_defs.ED_OBJECT_DICT_LIST: _ObjectListToDict,
+ rpc_defs.ED_NODE_TO_DISK_DICT: _EncodeNodeToDiskDict,
+ rpc_defs.ED_COMPRESS: _Compress,
+ rpc_defs.ED_FINALIZE_EXPORT_DISKS: _PrepareFinalizeExportDisks,
+ rpc_defs.ED_IMPEXP_IO: _EncodeImportExportIO,
+ rpc_defs.ED_BLOCKDEV_RENAME: _EncodeBlockdevRename,
+ }
- This is a single-node call.
- """
- return self._SingleNodeCall(node, "file_storage_dir_remove",
- [file_storage_dir])
+class RpcRunner(_RpcClientBase,
+ _generated_rpc.RpcClientDefault,
+ _generated_rpc.RpcClientBootstrap,
+ _generated_rpc.RpcClientDnsOnly,
+ _generated_rpc.RpcClientConfig):
+ """RPC runner class.
- def call_file_storage_dir_rename(self, node, old_file_storage_dir,
- new_file_storage_dir):
- """Rename file storage directory.
+ """
+ def __init__(self, cfg, lock_monitor_cb, _req_process_fn=None, _getents=None):
+ """Initialized the RPC runner.
- This is a single-node call.
+ @type cfg: L{config.ConfigWriter}
+ @param cfg: Configuration
+ @type lock_monitor_cb: callable
+ @param lock_monitor_cb: Lock monitor callback
"""
- return self._SingleNodeCall(node, "file_storage_dir_rename",
- [old_file_storage_dir, new_file_storage_dir])
-
- @classmethod
- def call_jobqueue_update(cls, node_list, address_list, file_name, content):
- """Update job queue.
-
- This is a multi-node call.
+ self._cfg = cfg
- """
- return cls._StaticMultiNodeCall(node_list, "jobqueue_update",
- [file_name, cls._Compress(content)],
- address_list=address_list)
+ encoders = _ENCODERS.copy()
+
+ encoders.update({
+ # Encoders requiring configuration object
+ rpc_defs.ED_INST_DICT: self._InstDict,
+ rpc_defs.ED_INST_DICT_HVP_BEP_DP: self._InstDictHvpBepDp,
+ rpc_defs.ED_INST_DICT_OSP_DP: self._InstDictOspDp,
+
+ # Encoders annotating disk parameters
+ rpc_defs.ED_DISKS_DICT_DP: self._DisksDictDP,
+ rpc_defs.ED_SINGLE_DISK_DICT_DP: self._SingleDiskDictDP,
+
+ # Encoders with special requirements
+ rpc_defs.ED_FILE_DETAILS: compat.partial(_PrepareFileUpload, _getents),
+ })
+
+ # Resolver using configuration
+ resolver = compat.partial(_NodeConfigResolver, cfg.GetNodeInfo,
+ cfg.GetAllNodesInfo)
+
+ # Pylint doesn't recognize multiple inheritance properly, see
+ # <http://www.logilab.org/ticket/36586> and
+ # <http://www.logilab.org/ticket/35642>
+ # pylint: disable=W0233
+ _RpcClientBase.__init__(self, resolver, encoders.get,
+ lock_monitor_cb=lock_monitor_cb,
+ _req_process_fn=_req_process_fn)
+ _generated_rpc.RpcClientConfig.__init__(self)
+ _generated_rpc.RpcClientBootstrap.__init__(self)
+ _generated_rpc.RpcClientDnsOnly.__init__(self)
+ _generated_rpc.RpcClientDefault.__init__(self)
+
+ def _InstDict(self, instance, hvp=None, bep=None, osp=None):
+ """Convert the given instance to a dict.
- @classmethod
- def call_jobqueue_purge(cls, node):
- """Purge job queue.
+ This is done via the instance's ToDict() method and additionally
+ we fill the hvparams with the cluster defaults.
- This is a single-node call.
+ @type instance: L{objects.Instance}
+ @param instance: an Instance object
+ @type hvp: dict or None
+ @param hvp: a dictionary with overridden hypervisor parameters
+ @type bep: dict or None
+ @param bep: a dictionary with overridden backend parameters
+ @type osp: dict or None
+ @param osp: a dictionary with overridden os parameters
+ @rtype: dict
+ @return: the instance dict, with the hvparams filled with the
+ cluster defaults
"""
- return cls._StaticSingleNodeCall(node, "jobqueue_purge", [])
-
- @classmethod
- def call_jobqueue_rename(cls, node_list, address_list, rename):
- """Rename a job queue file.
+ idict = instance.ToDict()
+ cluster = self._cfg.GetClusterInfo()
+ idict["hvparams"] = cluster.FillHV(instance)
+ if hvp is not None:
+ idict["hvparams"].update(hvp)
+ idict["beparams"] = cluster.FillBE(instance)
+ if bep is not None:
+ idict["beparams"].update(bep)
+ idict["osparams"] = cluster.SimpleFillOS(instance.os, instance.osparams)
+ if osp is not None:
+ idict["osparams"].update(osp)
+ for nic in idict["nics"]:
+ nic["nicparams"] = objects.FillDict(
+ cluster.nicparams[constants.PP_DEFAULT],
+ nic["nicparams"])
+ idict["disks"] = self._DisksDictDP((instance.disks, instance))
+ return idict
- This is a multi-node call.
+ def _InstDictHvpBepDp(self, (instance, hvp, bep)):
+ """Wrapper for L{_InstDict}.
"""
- return cls._StaticMultiNodeCall(node_list, "jobqueue_rename", rename,
- address_list=address_list)
-
- @classmethod
- def call_jobqueue_set_drain(cls, node_list, drain_flag):
- """Set the drain flag on the queue.
+ return self._InstDict(instance, hvp=hvp, bep=bep)
- This is a multi-node call.
-
- @type node_list: list
- @param node_list: the list of nodes to query
- @type drain_flag: bool
- @param drain_flag: if True, will set the drain flag, otherwise reset it.
+ def _InstDictOspDp(self, (instance, osparams)):
+ """Wrapper for L{_InstDict}.
"""
- return cls._StaticMultiNodeCall(node_list, "jobqueue_set_drain",
- [drain_flag])
-
- def call_hypervisor_validate_params(self, node_list, hvname, hvparams):
- """Validate the hypervisor params.
+ return self._InstDict(instance, osp=osparams)
- This is a multi-node call.
-
- @type node_list: list
- @param node_list: the list of nodes to query
- @type hvname: string
- @param hvname: the hypervisor name
- @type hvparams: dict
- @param hvparams: the hypervisor parameters to be validated
+ def _DisksDictDP(self, (disks, instance)):
+ """Wrapper for L{AnnotateDiskParams}.
"""
- cluster = self._cfg.GetClusterInfo()
- hv_full = objects.FillDict(cluster.hvparams.get(hvname, {}), hvparams)
- return self._MultiNodeCall(node_list, "hypervisor_validate_params",
- [hvname, hv_full])
-
- def call_x509_cert_create(self, node, validity):
- """Creates a new X509 certificate for SSL/TLS.
+ diskparams = self._cfg.GetInstanceDiskParams(instance)
+ return [disk.ToDict()
+ for disk in AnnotateDiskParams(instance.disk_template,
+ disks, diskparams)]
- This is a single-node call.
-
- @type validity: int
- @param validity: Validity in seconds
+ def _SingleDiskDictDP(self, (disk, instance)):
+ """Wrapper for L{AnnotateDiskParams}.
"""
- return self._SingleNodeCall(node, "x509_cert_create", [validity])
+ (anno_disk,) = self._DisksDictDP(([disk], instance))
+ return anno_disk
- def call_x509_cert_remove(self, node, name):
- """Removes a X509 certificate.
- This is a single-node call.
+class JobQueueRunner(_RpcClientBase, _generated_rpc.RpcClientJobQueue):
+ """RPC wrappers for job queue.
- @type name: string
- @param name: Certificate name
+ """
+ def __init__(self, context, address_list):
+ """Initializes this class.
"""
- return self._SingleNodeCall(node, "x509_cert_remove", [name])
-
- def call_import_start(self, node, opts, instance, dest, dest_args):
- """Starts a listener for an import.
-
- This is a single-node call.
-
- @type node: string
- @param node: Node name
- @type instance: C{objects.Instance}
- @param instance: Instance object
+ if address_list is None:
+ resolver = compat.partial(_SsconfResolver, True)
+ else:
+ # Caller provided an address list
+ resolver = _StaticResolver(address_list)
- """
- return self._SingleNodeCall(node, "import_start",
- [opts.ToDict(),
- self._InstDict(instance), dest,
- _EncodeImportExportIO(dest, dest_args)])
+ _RpcClientBase.__init__(self, resolver, _ENCODERS.get,
+ lock_monitor_cb=context.glm.AddToLockMonitor)
+ _generated_rpc.RpcClientJobQueue.__init__(self)
- def call_export_start(self, node, opts, host, port,
- instance, source, source_args):
- """Starts an export daemon.
- This is a single-node call.
+class BootstrapRunner(_RpcClientBase,
+ _generated_rpc.RpcClientBootstrap,
+ _generated_rpc.RpcClientDnsOnly):
+ """RPC wrappers for bootstrapping.
- @type node: string
- @param node: Node name
- @type instance: C{objects.Instance}
- @param instance: Instance object
+ """
+ def __init__(self):
+ """Initializes this class.
"""
- return self._SingleNodeCall(node, "export_start",
- [opts.ToDict(), host, port,
- self._InstDict(instance), source,
- _EncodeImportExportIO(source, source_args)])
+ # Pylint doesn't recognize multiple inheritance properly, see
+ # <http://www.logilab.org/ticket/36586> and
+ # <http://www.logilab.org/ticket/35642>
+ # pylint: disable=W0233
+ _RpcClientBase.__init__(self, compat.partial(_SsconfResolver, True),
+ _ENCODERS.get)
+ _generated_rpc.RpcClientBootstrap.__init__(self)
+ _generated_rpc.RpcClientDnsOnly.__init__(self)
- def call_impexp_status(self, node, names):
- """Gets the status of an import or export.
- This is a single-node call.
+class DnsOnlyRunner(_RpcClientBase, _generated_rpc.RpcClientDnsOnly):
+ """RPC wrappers for calls using only DNS.
- @type node: string
- @param node: Node name
- @type names: List of strings
- @param names: Import/export names
- @rtype: List of L{objects.ImportExportStatus} instances
- @return: Returns a list of the state of each named import/export or None if
- a status couldn't be retrieved
+ """
+ def __init__(self):
+ """Initialize this class.
"""
- result = self._SingleNodeCall(node, "impexp_status", [names])
-
- if not result.fail_msg:
- decoded = []
-
- for i in result.payload:
- if i is None:
- decoded.append(None)
- continue
- decoded.append(objects.ImportExportStatus.FromDict(i))
-
- result.payload = decoded
-
- return result
+ _RpcClientBase.__init__(self, compat.partial(_SsconfResolver, False),
+ _ENCODERS.get)
+ _generated_rpc.RpcClientDnsOnly.__init__(self)
- def call_impexp_abort(self, node, name):
- """Aborts an import or export.
- This is a single-node call.
+class ConfigRunner(_RpcClientBase, _generated_rpc.RpcClientConfig):
+ """RPC wrappers for L{config}.
- @type node: string
- @param node: Node name
- @type name: string
- @param name: Import/export name
+ """
+ def __init__(self, context, address_list, _req_process_fn=None,
+ _getents=None):
+ """Initializes this class.
"""
- return self._SingleNodeCall(node, "impexp_abort", [name])
+ if context:
+ lock_monitor_cb = context.glm.AddToLockMonitor
+ else:
+ lock_monitor_cb = None
- def call_impexp_cleanup(self, node, name):
- """Cleans up after an import or export.
+ if address_list is None:
+ resolver = compat.partial(_SsconfResolver, True)
+ else:
+ # Caller provided an address list
+ resolver = _StaticResolver(address_list)
- This is a single-node call.
+ encoders = _ENCODERS.copy()
- @type node: string
- @param node: Node name
- @type name: string
- @param name: Import/export name
+ encoders.update({
+ rpc_defs.ED_FILE_DETAILS: compat.partial(_PrepareFileUpload, _getents),
+ })
- """
- return self._SingleNodeCall(node, "impexp_cleanup", [name])
+ _RpcClientBase.__init__(self, resolver, encoders.get,
+ lock_monitor_cb=lock_monitor_cb,
+ _req_process_fn=_req_process_fn)
+ _generated_rpc.RpcClientConfig.__init__(self)
projects / ganeti-local / blobdiff