X-Git-Url: https://code.grnet.gr/git/ganeti-local/blobdiff_plain/4522a96dab6cf70d73346b306637b744e7b157cc..3201717461bc6e55f2deab7ad426ebfbb7b1e943:/lib/rpc.py diff --git a/lib/rpc.py b/lib/rpc.py index 2fcb1b9..0bedb3c 100644 --- a/lib/rpc.py +++ b/lib/rpc.py @@ -47,6 +47,7 @@ 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 @@ -71,16 +72,6 @@ _TMO_SLOW = 3600 # one hour _TMO_4HRS = 4 * 3600 _TMO_1DAY = 86400 -# Timeout table that will be built later by decorators -# Guidelines for choosing timeouts: -# - call used during watcher: timeout -> 1min, _TMO_URGENT -# - trivial (but be sure it is trivial) (e.g. reading a file): 5min, _TMO_FAST -# - other calls: 15 min, _TMO_NORMAL -# - special calls (instance add, etc.): either _TMO_SLOW (1h) or huge timeouts - -_TIMEOUTS = { -} - #: Special value to describe an offline host _OFFLINE = object() @@ -127,21 +118,6 @@ def _ConfigRpcCurl(curl): curl.setopt(pycurl.CONNECTTIMEOUT, _RPC_CONNECT_TIMEOUT) -def _RpcTimeout(secs): - """Timeout decorator. - - When applied to a rpc call_* function, it updates the global timeout - table with the given function/timeout. - - """ - def decorator(f): - name = f.__name__ - assert name.startswith("call_") - _TIMEOUTS[name[len("call_"):]] = secs - return f - return decorator - - def RunWithRPC(fn): """RPC-wrapper decorator. @@ -420,9 +396,6 @@ class _RpcProcessor: @param read_timeout: Read timeout for request """ - if read_timeout is None: - read_timeout = _TIMEOUTS.get(procedure, None) - assert read_timeout is not None, \ "Missing RPC read timeout for procedure '%s'" % procedure @@ -437,22 +410,139 @@ class _RpcProcessor: return self._CombineResults(results, requests, procedure) -def _EncodeImportExportIO(ieio, ieioargs): +class _RpcClientBase: + def __init__(self, resolver, encoder_fn, lock_monitor_cb=None): + """Initializes this class. + + """ + self._proc = _RpcProcessor(resolver, + netutils.GetDaemonPort(constants.NODED), + lock_monitor_cb=lock_monitor_cb) + self._encoder = compat.partial(self._EncodeArg, encoder_fn) + + @staticmethod + def _EncodeArg(encoder_fn, (argkind, value)): + """Encode argument. + + """ + if argkind is None: + return value + else: + return encoder_fn(argkind)(value) + + def _Call(self, cdef, node_list, args): + """Entry point for automatically generated RPC wrappers. + + """ + (procedure, _, timeout, argdefs, postproc_fn, _) = cdef + + if callable(timeout): + read_timeout = timeout(args) + else: + read_timeout = timeout + + body = serializer.DumpJson(map(self._encoder, + zip(map(compat.snd, argdefs), args)), + indent=False) + + result = self._proc(node_list, procedure, body, read_timeout=read_timeout) + + if postproc_fn: + return dict(map(lambda (key, value): (key, postproc_fn(value)), + result.items())) + else: + return result + + +def _ObjectToDict(value): + """Converts an object to a dictionary. + + @note: See L{objects}. + + """ + return value.ToDict() + + +def _ObjectListToDict(value): + """Converts a list of L{objects} to dictionaries. + + """ + return map(_ObjectToDict, value) + + +def _EncodeNodeToDiskDict(value): + """Encodes a dictionary with node name as key and disk objects as values. + + """ + return dict((name, _ObjectListToDict(disks)) + for name, disks in value.items()) + + +def _PrepareFileUpload(filename): + """Loads a file and prepares it for an upload to nodes. + + """ + data = _Compress(utils.ReadFile(filename)) + st = os.stat(filename) + getents = runtime.GetEnts() + return [filename, data, st.st_mode, getents.LookupUid(st.st_uid), + getents.LookupGid(st.st_gid), st.st_atime, st.st_mtime] + + +def _PrepareFinalizeExportDisks(snap_disks): + """Encodes disks for finalizing export. + + """ + flat_disks = [] + + for disk in snap_disks: + if isinstance(disk, bool): + flat_disks.append(disk) + else: + flat_disks.append(disk.ToDict()) + + return flat_disks + + +def _EncodeImportExportIO((ieio, ieioargs)): """Encodes import/export I/O information. """ if ieio == constants.IEIO_RAW_DISK: assert len(ieioargs) == 1 - return (ieioargs[0].ToDict(), ) + return (ieio, (ieioargs[0].ToDict(), )) if ieio == constants.IEIO_SCRIPT: assert len(ieioargs) == 2 - return (ieioargs[0].ToDict(), ieioargs[1]) + return (ieio, (ieioargs[0].ToDict(), ieioargs[1])) + + return (ieio, ieioargs) - return ieioargs +def _EncodeBlockdevRename(value): + """Encodes information for renaming block devices. -class RpcRunner(_generated_rpc.RpcClientDefault): + """ + return [(d.ToDict(), uid) for d, uid in value] + + +#: 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_FILE_DETAILS: _PrepareFileUpload, + rpc_defs.ED_COMPRESS: _Compress, + rpc_defs.ED_FINALIZE_EXPORT_DISKS: _PrepareFinalizeExportDisks, + rpc_defs.ED_IMPEXP_IO: _EncodeImportExportIO, + rpc_defs.ED_BLOCKDEV_RENAME: _EncodeBlockdevRename, + } + + +class RpcRunner(_RpcClientBase, + _generated_rpc.RpcClientDefault, + _generated_rpc.RpcClientBootstrap, + _generated_rpc.RpcClientConfig): """RPC runner class. """ @@ -463,14 +553,30 @@ class RpcRunner(_generated_rpc.RpcClientDefault): @param context: Ganeti context """ - _generated_rpc.RpcClientDefault.__init__(self) - self._cfg = context.cfg - self._proc = _RpcProcessor(compat.partial(_NodeConfigResolver, - self._cfg.GetNodeInfo, - self._cfg.GetAllNodesInfo), - netutils.GetDaemonPort(constants.NODED), - lock_monitor_cb=context.glm.AddToLockMonitor) + + encoders = _ENCODERS.copy() + + # Add encoders requiring configuration object + encoders.update({ + rpc_defs.ED_INST_DICT: self._InstDict, + rpc_defs.ED_INST_DICT_HVP_BEP: self._InstDictHvpBep, + rpc_defs.ED_INST_DICT_OSP: self._InstDictOsp, + }) + + # Resolver using configuration + resolver = compat.partial(_NodeConfigResolver, self._cfg.GetNodeInfo, + self._cfg.GetAllNodesInfo) + + # Pylint doesn't recognize multiple inheritance properly, see + # and + # + # pylint: disable=W0233 + _RpcClientBase.__init__(self, resolver, encoders.get, + lock_monitor_cb=context.glm.AddToLockMonitor) + _generated_rpc.RpcClientConfig.__init__(self) + _generated_rpc.RpcClientBootstrap.__init__(self) + _generated_rpc.RpcClientDefault.__init__(self) def _InstDict(self, instance, hvp=None, bep=None, osp=None): """Convert the given instance to a dict. @@ -508,1022 +614,69 @@ class RpcRunner(_generated_rpc.RpcClientDefault): nic['nicparams']) return idict - def _MultiNodeCall(self, node_list, procedure, args, read_timeout=None): - """Helper for making a multi-node call + def _InstDictHvpBep(self, (instance, hvp, bep)): + """Wrapper for L{_InstDict}. """ - body = serializer.DumpJson(args, indent=False) - return self._proc(node_list, procedure, body, read_timeout=read_timeout) + return self._InstDict(instance, hvp=hvp, bep=bep) - def _Call(self, node_list, procedure, timeout, args): - """Entry point for automatically generated RPC wrappers. + def _InstDictOsp(self, (instance, osparams)): + """Wrapper for L{_InstDict}. """ - return self._MultiNodeCall(node_list, procedure, args, read_timeout=timeout) + return self._InstDict(instance, osp=osparams) - @staticmethod - def _StaticMultiNodeCall(node_list, procedure, args, - address_list=None, read_timeout=None): - """Helper for making a multi-node static call - """ - body = serializer.DumpJson(args, indent=False) +class JobQueueRunner(_RpcClientBase, _generated_rpc.RpcClientJobQueue): + """RPC wrappers for job queue. + + """ + def __init__(self, context, address_list): + """Initializes this class. + """ if address_list is None: resolver = _SsconfResolver else: # Caller provided an address list resolver = _StaticResolver(address_list) - proc = _RpcProcessor(resolver, - netutils.GetDaemonPort(constants.NODED)) - return proc(node_list, procedure, body, read_timeout=read_timeout) - - def _SingleNodeCall(self, node, procedure, args, read_timeout=None): - """Helper for making a single-node call - - """ - body = serializer.DumpJson(args, indent=False) - return self._proc([node], procedure, body, read_timeout=read_timeout)[node] - - @classmethod - def _StaticSingleNodeCall(cls, node, procedure, args, read_timeout=None): - """Helper for making a single-node static call - - """ - body = serializer.DumpJson(args, indent=False) - proc = _RpcProcessor(_SsconfResolver, - netutils.GetDaemonPort(constants.NODED)) - return proc([node], procedure, body, read_timeout=read_timeout)[node] - - @staticmethod - def _BlockdevFindPostProc(result): - if not result.fail_msg and result.payload is not None: - result.payload = objects.BlockDevStatus.FromDict(result.payload) - return result - - @staticmethod - def _BlockdevGetMirrorStatusPostProc(result): - if not result.fail_msg: - result.payload = [objects.BlockDevStatus.FromDict(i) - for i in result.payload] - return result - - @staticmethod - def _BlockdevGetMirrorStatusMultiPostProc(result): - for nres in result.values(): - if nres.fail_msg: - continue - - for idx, (success, status) in enumerate(nres.payload): - if success: - nres.payload[idx] = (success, objects.BlockDevStatus.FromDict(status)) - - return result - - @staticmethod - def _OsGetPostProc(result): - if not result.fail_msg and isinstance(result.payload, dict): - result.payload = objects.OS.FromDict(result.payload) - return result - - @staticmethod - def _PrepareFinalizeExportDisks(snap_disks): - flat_disks = [] - - for disk in snap_disks: - if isinstance(disk, bool): - flat_disks.append(disk) - else: - flat_disks.append(disk.ToDict()) - - return flat_disks - - @staticmethod - def _ImpExpStatusPostProc(result): - """Post-processor for import/export status. - - @rtype: Payload containing 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 - - """ - 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 - - # - # Begin RPC calls - # - - @_RpcTimeout(_TMO_URGENT) - def call_bdev_sizes(self, node_list, devices): - """Gets the sizes of requested block devices present on a node - - This is a multi-node call. - - """ - return self._MultiNodeCall(node_list, "bdev_sizes", [devices]) - - @_RpcTimeout(_TMO_URGENT) - 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]) - - @_RpcTimeout(_TMO_URGENT) - 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", []) - - @_RpcTimeout(_TMO_NORMAL) - 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]) - - @_RpcTimeout(_TMO_NORMAL) - 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]) - - @_RpcTimeout(_TMO_NORMAL) - 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]) - - @_RpcTimeout(_TMO_URGENT) - 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]) - - @_RpcTimeout(_TMO_NORMAL) - def call_instance_start(self, node, instance, hvp, bep, startup_paused): - """Starts an instance. - - This is a single-node call. - - """ - idict = self._InstDict(instance, hvp=hvp, bep=bep) - return self._SingleNodeCall(node, "instance_start", [idict, startup_paused]) - - @_RpcTimeout(_TMO_NORMAL) - 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]) - - @_RpcTimeout(_TMO_NORMAL) - 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)]) - - @_RpcTimeout(_TMO_NORMAL) - 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]) - - @_RpcTimeout(_TMO_NORMAL) - def call_instance_finalize_migration_dst(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, "instance_finalize_migration_dst", - [self._InstDict(instance), info, success]) - - @_RpcTimeout(_TMO_SLOW) - 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]) - - @_RpcTimeout(_TMO_SLOW) - def call_instance_finalize_migration_src(self, node, instance, success, live): - """Finalize the instance migration on the source node. - - This is a single-node call. - - @type instance: L{objects.Instance} - @param instance: the instance that was migrated - @type success: bool - @param success: whether the migration succeeded or not - @type live: bool - @param live: whether the user requested a live migration or not - - """ - return self._SingleNodeCall(node, "instance_finalize_migration_src", - [self._InstDict(instance), success, live]) - - @_RpcTimeout(_TMO_SLOW) - def call_instance_get_migration_status(self, node, instance): - """Report migration status. - - This is a single-node call that must be executed on the source node. - - @type instance: L{objects.Instance} - @param instance: the instance that is being migrated - @rtype: L{objects.MigrationStatus} - @return: the status of the current migration (one of - L{constants.HV_MIGRATION_VALID_STATUSES}), plus any additional - progress info that can be retrieved from the hypervisor - - """ - result = self._SingleNodeCall(node, "instance_get_migration_status", - [self._InstDict(instance)]) - if not result.fail_msg and result.payload is not None: - result.payload = objects.MigrationStatus.FromDict(result.payload) - return result - - @_RpcTimeout(_TMO_NORMAL) - 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]) - - @_RpcTimeout(_TMO_1DAY) - def call_instance_os_add(self, node, inst, reinstall, debug, osparams=None): - """Installs an OS on the given instance. - - This is a single-node call. - - """ - return self._SingleNodeCall(node, "instance_os_add", - [self._InstDict(inst, osp=osparams), - reinstall, debug]) - - @_RpcTimeout(_TMO_SLOW) - 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]) - - @_RpcTimeout(_TMO_URGENT) - 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]) - - @_RpcTimeout(_TMO_NORMAL) - 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)]) - - @_RpcTimeout(_TMO_URGENT) - 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]) - - @_RpcTimeout(_TMO_URGENT) - 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]) - - @_RpcTimeout(_TMO_FAST) - 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]) - - @_RpcTimeout(_TMO_URGENT) - def call_node_info(self, node_list, vg_name, hypervisor_type): - """Return node information. + _RpcClientBase.__init__(self, resolver, _ENCODERS.get, + lock_monitor_cb=context.glm.AddToLockMonitor) + _generated_rpc.RpcClientJobQueue.__init__(self) - This will return memory information and volume group size and free - space. - This is a multi-node call. +class BootstrapRunner(_RpcClientBase, _generated_rpc.RpcClientBootstrap): + """RPC wrappers for bootstrapping. - @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]) - - @_RpcTimeout(_TMO_NORMAL) - def call_etc_hosts_modify(self, node, mode, name, ip): - """Modify hosts file with name - - @type node: string - @param node: The node to call - @type mode: string - @param mode: The mode to operate. Currently "add" or "remove" - @type name: string - @param name: The host name to be modified - @type ip: string - @param ip: The ip of the entry (just valid if mode is "add") - - """ - return self._SingleNodeCall(node, "etc_hosts_modify", [mode, name, ip]) - - @_RpcTimeout(_TMO_NORMAL) - 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 - @_RpcTimeout(_TMO_FAST) - def call_node_start_master_daemons(cls, node, no_voting): - """Starts master daemons on a node. - - This is a single-node call. - - """ - return cls._StaticSingleNodeCall(node, "node_start_master_daemons", - [no_voting]) - - @classmethod - @_RpcTimeout(_TMO_FAST) - def call_node_activate_master_ip(cls, node): - """Activates master IP on a node. - - This is a single-node call. - - """ - return cls._StaticSingleNodeCall(node, "node_activate_master_ip", []) - - @classmethod - @_RpcTimeout(_TMO_FAST) - def call_node_stop_master(cls, node): - """Deactivates master IP and stops master daemons on a node. - - This is a single-node call. - - """ - return cls._StaticSingleNodeCall(node, "node_stop_master", []) - - @classmethod - @_RpcTimeout(_TMO_FAST) - def call_node_deactivate_master_ip(cls, node): - """Deactivates master IP on a node. - - This is a single-node call. - - """ - return cls._StaticSingleNodeCall(node, "node_deactivate_master_ip", []) - - @classmethod - @_RpcTimeout(_TMO_FAST) - def call_node_change_master_netmask(cls, node, netmask): - """Change master IP netmask. - - This is a single-node call. - - """ - return cls._StaticSingleNodeCall(node, "node_change_master_netmask", - [netmask]) - - @classmethod - @_RpcTimeout(_TMO_URGENT) - 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 - @_RpcTimeout(_TMO_URGENT) - def call_version(cls, node_list): - """Query node version. - - This is a multi-node call. - - """ - return cls._StaticMultiNodeCall(node_list, "version", []) - - @_RpcTimeout(_TMO_NORMAL) - 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]) - - @_RpcTimeout(_TMO_SLOW) - def call_blockdev_wipe(self, node, bdev, offset, size): - """Request wipe at given offset with given size of a block device. - - This is a single-node call. - - """ - return self._SingleNodeCall(node, "blockdev_wipe", - [bdev.ToDict(), offset, size]) - - @_RpcTimeout(_TMO_NORMAL) - 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()]) - - @_RpcTimeout(_TMO_NORMAL) - def call_blockdev_rename(self, node, devlist): - """Request rename of the given block devices. - - This is a single-node call. - - """ - return self._SingleNodeCall(node, "blockdev_rename", - [[(d.ToDict(), uid) for d, uid in devlist]]) - - @_RpcTimeout(_TMO_NORMAL) - def call_blockdev_pause_resume_sync(self, node, disks, pause): - """Request a pause/resume of given block device. - - This is a single-node call. - - """ - return self._SingleNodeCall(node, "blockdev_pause_resume_sync", - [[bdev.ToDict() for bdev in disks], pause]) - - @_RpcTimeout(_TMO_NORMAL) - def call_blockdev_assemble(self, node, disk, owner, on_primary, idx): - """Request assembling of a given block device. - - This is a single-node call. - - """ - return self._SingleNodeCall(node, "blockdev_assemble", - [disk.ToDict(), owner, on_primary, idx]) - - @_RpcTimeout(_TMO_NORMAL) - 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()]) - - @_RpcTimeout(_TMO_NORMAL) - 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]]) - - @_RpcTimeout(_TMO_NORMAL) - 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]]) - - @_RpcTimeout(_TMO_NORMAL) - 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 - - @_RpcTimeout(_TMO_NORMAL) - def call_blockdev_getmirrorstatus_multi(self, node_list, node_disks): - """Request status of (mirroring) devices from multiple nodes. - - This is a multi-node call. - - """ - result = self._MultiNodeCall(node_list, "blockdev_getmirrorstatus_multi", - [dict((name, [dsk.ToDict() for dsk in disks]) - for name, disks in node_disks.items())]) - for nres in result.values(): - if nres.fail_msg: - continue - - for idx, (success, status) in enumerate(nres.payload): - if success: - nres.payload[idx] = (success, objects.BlockDevStatus.FromDict(status)) - - return result - - @_RpcTimeout(_TMO_NORMAL) - 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 - - @_RpcTimeout(_TMO_NORMAL) - 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) - - @_RpcTimeout(_TMO_NORMAL) - def call_blockdev_getsize(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) - - @_RpcTimeout(_TMO_NORMAL) - def call_drbd_disconnect_net(self, node_list, nodes_ip, disks): - """Disconnects the network of the given drbd devices. - - This is a multi-node call. - - """ - return self._MultiNodeCall(node_list, "drbd_disconnect_net", - [nodes_ip, [cf.ToDict() for cf in disks]]) - - @_RpcTimeout(_TMO_NORMAL) - def call_drbd_attach_net(self, node_list, nodes_ip, - disks, instance_name, multimaster): - """Disconnects the given drbd devices. - - This is a multi-node call. - - """ - return self._MultiNodeCall(node_list, "drbd_attach_net", - [nodes_ip, [cf.ToDict() for cf in disks], - instance_name, multimaster]) - - @_RpcTimeout(_TMO_SLOW) - def call_drbd_wait_sync(self, node_list, nodes_ip, disks): - """Waits for the synchronization of drbd devices is complete. - - This is a multi-node call. - - """ - return self._MultiNodeCall(node_list, "drbd_wait_sync", - [nodes_ip, [cf.ToDict() for cf in disks]]) - - @_RpcTimeout(_TMO_URGENT) - def call_drbd_helper(self, node_list): - """Gets drbd helper. - - This is a multi-node call. - - """ - return self._MultiNodeCall(node_list, "drbd_helper", []) - - @classmethod - @_RpcTimeout(_TMO_NORMAL) - def call_upload_file(cls, node_list, file_name, address_list=None): - """Upload a file. - - The node will refuse the operation in case the file is not on the - approved file list. - - 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 - - """ - file_contents = utils.ReadFile(file_name) - data = _Compress(file_contents) - st = os.stat(file_name) - getents = runtime.GetEnts() - params = [file_name, data, st.st_mode, getents.LookupUid(st.st_uid), - getents.LookupGid(st.st_gid), st.st_atime, st.st_mtime] - return cls._StaticMultiNodeCall(node_list, "upload_file", params, - address_list=address_list) - - @classmethod - @_RpcTimeout(_TMO_NORMAL) - def call_write_ssconf_files(cls, node_list, values): - """Write ssconf files. - - This is a multi-node call. - - """ - return cls._StaticMultiNodeCall(node_list, "write_ssconf_files", [values]) - - @_RpcTimeout(_TMO_NORMAL) - def call_run_oob(self, node, oob_program, command, remote_node, timeout): - """Runs OOB. - - This is a single-node call. - - """ - return self._SingleNodeCall(node, "run_oob", [oob_program, command, - remote_node, timeout]) - - @_RpcTimeout(_TMO_NORMAL) - def call_hooks_runner(self, node_list, hpath, phase, env): - """Call the hooks runner. - - Args: - - op: the OpCode instance - - env: a dictionary with the environment - - This is a multi-node call. - - """ - params = [hpath, phase, env] - return self._MultiNodeCall(node_list, "hooks_runner", params) - - @_RpcTimeout(_TMO_NORMAL) - def call_iallocator_runner(self, node, name, idata): - """Call an iallocator on a remote node - - Args: - - name: the iallocator name - - input: the json-encoded input string - - This is a single-node call. - - """ - return self._SingleNodeCall(node, "iallocator_runner", [name, idata]) - - @_RpcTimeout(_TMO_NORMAL) - def call_blockdev_grow(self, node, cf_bdev, amount, dryrun): - """Request a snapshot of the given block device. - - This is a single-node call. - - """ - return self._SingleNodeCall(node, "blockdev_grow", - [cf_bdev.ToDict(), amount, dryrun]) - - @_RpcTimeout(_TMO_1DAY) - def call_blockdev_export(self, node, cf_bdev, - dest_node, dest_path, cluster_name): - """Export a given disk to another node. - - This is a single-node call. - - """ - return self._SingleNodeCall(node, "blockdev_export", - [cf_bdev.ToDict(), dest_node, dest_path, - cluster_name]) - - @_RpcTimeout(_TMO_NORMAL) - def call_blockdev_snapshot(self, node, cf_bdev): - """Request a snapshot of the given block device. - - This is a single-node call. - - """ - return self._SingleNodeCall(node, "blockdev_snapshot", [cf_bdev.ToDict()]) - - @classmethod - @_RpcTimeout(_TMO_NORMAL) - def call_node_leave_cluster(cls, node, modify_ssh_setup): - """Requests a node to clean the cluster information it has. - - This will remove the configuration information from the ganeti data - dir. - - This is a single-node call. - - """ - return cls._StaticSingleNodeCall(node, "node_leave_cluster", - [modify_ssh_setup]) - - @_RpcTimeout(_TMO_FAST) - def call_node_volumes(self, node_list): - """Gets all volumes on node(s). - - This is a multi-node call. - - """ - return self._MultiNodeCall(node_list, "node_volumes", []) - - @_RpcTimeout(_TMO_FAST) - def call_node_demote_from_mc(self, node): - """Demote a node from the master candidate role. - - This is a single-node call. - - """ - return self._SingleNodeCall(node, "node_demote_from_mc", []) - - @_RpcTimeout(_TMO_NORMAL) - def call_node_powercycle(self, node, hypervisor): - """Tries to powercycle a node. - - This is a single-node call. - - """ - return self._SingleNodeCall(node, "node_powercycle", [hypervisor]) - - @_RpcTimeout(None) - def call_test_delay(self, node_list, duration): - """Sleep for a fixed time on given node(s). - - This is a multi-node call. - - """ - return self._MultiNodeCall(node_list, "test_delay", [duration], - read_timeout=int(duration + 5)) - - @_RpcTimeout(_TMO_FAST) - def call_file_storage_dir_create(self, node, file_storage_dir): - """Create the given file storage directory. - - This is a single-node call. - - """ - return self._SingleNodeCall(node, "file_storage_dir_create", - [file_storage_dir]) - - @_RpcTimeout(_TMO_FAST) - def call_file_storage_dir_remove(self, node, file_storage_dir): - """Remove the given file storage directory. - - This is a single-node call. - - """ - return self._SingleNodeCall(node, "file_storage_dir_remove", - [file_storage_dir]) - - @_RpcTimeout(_TMO_FAST) - def call_file_storage_dir_rename(self, node, old_file_storage_dir, - new_file_storage_dir): - """Rename file storage directory. - - This is a single-node call. - - """ - return self._SingleNodeCall(node, "file_storage_dir_rename", - [old_file_storage_dir, new_file_storage_dir]) - - @classmethod - @_RpcTimeout(_TMO_URGENT) - def call_jobqueue_update(cls, node_list, address_list, file_name, content): - """Update job queue. - - This is a multi-node call. - - """ - return cls._StaticMultiNodeCall(node_list, "jobqueue_update", - [file_name, _Compress(content)], - address_list=address_list) - - @classmethod - @_RpcTimeout(_TMO_NORMAL) - def call_jobqueue_purge(cls, node): - """Purge job queue. - - This is a single-node call. - - """ - return cls._StaticSingleNodeCall(node, "jobqueue_purge", []) - - @classmethod - @_RpcTimeout(_TMO_URGENT) - def call_jobqueue_rename(cls, node_list, address_list, rename): - """Rename a job queue file. - - This is a multi-node call. + """ + def __init__(self): + """Initializes this class. """ - return cls._StaticMultiNodeCall(node_list, "jobqueue_rename", rename, - address_list=address_list) - - @_RpcTimeout(_TMO_NORMAL) - def call_hypervisor_validate_params(self, node_list, hvname, hvparams): - """Validate the hypervisor params. - - This is a multi-node call. + _RpcClientBase.__init__(self, _SsconfResolver, _ENCODERS.get) + _generated_rpc.RpcClientBootstrap.__init__(self) - @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 - - """ - cluster = self._cfg.GetClusterInfo() - hv_full = objects.FillDict(cluster.hvparams.get(hvname, {}), hvparams) - return self._MultiNodeCall(node_list, "hypervisor_validate_params", - [hvname, hv_full]) - @_RpcTimeout(_TMO_NORMAL) - def call_import_start(self, node, opts, instance, component, - dest, dest_args): - """Starts a listener for an import. +class ConfigRunner(_RpcClientBase, _generated_rpc.RpcClientConfig): + """RPC wrappers for L{config}. - This is a single-node call. - - @type node: string - @param node: Node name - @type instance: C{objects.Instance} - @param instance: Instance object - @type component: string - @param component: which part of the instance is being imported + """ + def __init__(self, context, address_list): + """Initializes this class. """ - return self._SingleNodeCall(node, "import_start", - [opts.ToDict(), - self._InstDict(instance), component, dest, - _EncodeImportExportIO(dest, dest_args)]) - - @_RpcTimeout(_TMO_NORMAL) - def call_export_start(self, node, opts, host, port, - instance, component, source, source_args): - """Starts an export daemon. - - This is a single-node call. + if context: + lock_monitor_cb = context.glm.AddToLockMonitor + else: + lock_monitor_cb = None - @type node: string - @param node: Node name - @type instance: C{objects.Instance} - @param instance: Instance object - @type component: string - @param component: which part of the instance is being imported + if address_list is None: + resolver = _SsconfResolver + else: + # Caller provided an address list + resolver = _StaticResolver(address_list) - """ - return self._SingleNodeCall(node, "export_start", - [opts.ToDict(), host, port, - self._InstDict(instance), - component, source, - _EncodeImportExportIO(source, source_args)]) + _RpcClientBase.__init__(self, resolver, _ENCODERS.get, + lock_monitor_cb=lock_monitor_cb) + _generated_rpc.RpcClientConfig.__init__(self)