root / lib / rpc.py @ 6c0af70e
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# Copyright (C) 2006, 2007 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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"""Inter-node RPC library.
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"""
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# pylint: disable-msg=C0103,R0201,R0904
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# C0103: Invalid name, since call_ are not valid
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# R0201: Method could be a function, we keep all rpcs instance methods
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# as not to change them back and forth between static/instance methods
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# if they need to start using instance attributes
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# R0904: Too many public methods
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import os |
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import socket |
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import httplib |
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import logging |
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import simplejson |
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from ganeti import utils |
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from ganeti import objects |
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class NodeController: |
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"""Node-handling class.
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For each node that we speak with, we create an instance of this
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class, so that we have a safe place to store the details of this
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individual call.
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"""
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def __init__(self, parent, node, address=None): |
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"""Constructor for the node controller.
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@type parent: L{Client}
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@param parent: the C{Client} instance which holds global parameters for
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the call
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@type node: str
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@param node: the name of the node we connect to; it is used for error
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messages and in cases we the address paramater is not passed
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@type address: str
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@keyword address: the node's address, in case we know it, so that we
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don't need to resolve it; testing shows that httplib has high
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overhead in resolving addresses (even when speficied in /etc/hosts)
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"""
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self.parent = parent
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self.node = node
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if address is None: |
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address = node |
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self.failed = False |
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self.http_conn = hc = httplib.HTTPConnection(address, parent.port)
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try:
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hc.connect() |
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hc.putrequest('PUT', "/%s" % parent.procedure, |
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skip_accept_encoding=True)
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hc.putheader('Content-Length', parent.body_length)
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hc.endheaders() |
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hc.send(parent.body) |
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except socket.error:
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logging.exception("Error connecting to node %s", node)
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self.failed = True |
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def GetResponse(self): |
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"""Try to process the response from the node.
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"""
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if self.failed: |
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# we already failed in connect
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return False |
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resp = self.http_conn.getresponse()
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if resp.status != 200: |
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return False |
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try:
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length = int(resp.getheader('Content-Length', '0')) |
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except ValueError: |
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return False |
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if not length: |
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logging.error("Zero-length reply from node %s", self.node) |
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return False |
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payload = resp.read(length) |
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unload = simplejson.loads(payload) |
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return unload
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class Client: |
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"""RPC Client class.
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This class, given a (remote) method name, a list of parameters and a
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list of nodes, will contact (in parallel) all nodes, and return a
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dict of results (key: node name, value: result).
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One current bug is that generic failure is still signalled by
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'False' result, which is not good. This overloading of values can
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cause bugs.
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@var body_length: cached string value of the length of the body (so that
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individual C{NodeController} instances don't have to recompute it)
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"""
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result_set = False
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result = False
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allresult = [] |
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def __init__(self, procedure, args): |
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self.port = utils.GetNodeDaemonPort()
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self.nodepw = utils.GetNodeDaemonPassword()
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self.nc = {}
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self.results = {}
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self.procedure = procedure
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self.args = args
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self.body = simplejson.dumps(args)
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self.body_length = str(len(self.body)) |
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#--- generic connector -------------
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def ConnectList(self, node_list, address_list=None): |
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"""Add a list of nodes to the target nodes.
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@type node_list: list
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@param node_list: the list of node names to connect
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@type address_list: list or None
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@keyword address_list: either None or a list with node addresses,
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which must have the same length as the node list
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"""
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if address_list is None: |
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address_list = [None for _ in node_list] |
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else:
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assert len(node_list) == len(address_list), \ |
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"Name and address lists should have the same length"
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for node, address in zip(node_list, address_list): |
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self.ConnectNode(node, address)
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def ConnectNode(self, name, address=None): |
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"""Add a node to the target list.
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@type name: str
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@param name: the node name
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@type address: str
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@keyword address: the node address, if known
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"""
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self.nc[name] = NodeController(self, name, address) |
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def GetResults(self): |
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"""Return the results of the call.
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"""
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return self.results |
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def Run(self): |
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"""Gather results from the node controllers.
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This function simply calls GetResponse() for each of our node
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controllers.
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"""
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for node, nc in self.nc.items(): |
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self.results[node] = nc.GetResponse()
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class RpcRunner(object): |
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"""RPC runner class"""
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def __init__(self, cfg): |
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"""Initialized the rpc runner.
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@type cfg: C{config.ConfigWriter}
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@param cfg: the configuration object that will be used to get data
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about the cluster
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"""
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self._cfg = cfg
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def _InstDict(self, instance): |
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"""Convert the given instance to a dict.
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This is done via the instance's ToDict() method and additionally
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we fill the hvparams with the cluster defaults.
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@type instance: L{objects.Instance}
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@param instance: an Instance object
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@rtype: dict
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@return: the instance dict, with the hvparams filled with the
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cluster defaults
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"""
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idict = instance.ToDict() |
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cluster = self._cfg.GetClusterInfo()
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idict["hvparams"] = cluster.FillHV(instance)
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idict["beparams"] = cluster.FillBE(instance)
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return idict
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def _ConnectList(self, client, node_list): |
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"""Helper for computing node addresses.
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@type client: L{Client}
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@param client: a C{Client} instance
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@type node_list: list
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@param node_list: the node list we should connect
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"""
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all_nodes = self._cfg.GetAllNodesInfo()
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addr_list = [] |
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for node in node_list: |
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if node in all_nodes: |
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val = all_nodes[node].primary_ip |
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else:
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val = None
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addr_list.append(val) |
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client.ConnectList(node_list, address_list=addr_list) |
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def _ConnectNode(self, client, node): |
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"""Helper for computing one node's address.
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@type client: L{Client}
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@param client: a C{Client} instance
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@type node: str
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@param node: the node we should connect
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"""
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node_info = self._cfg.GetNodeInfo(node)
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if node_info is not None: |
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addr = node_info.primary_ip |
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else:
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addr = None
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client.ConnectNode(node, address=addr) |
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def call_volume_list(self, node_list, vg_name): |
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"""Gets the logical volumes present in a given volume group.
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This is a multi-node call.
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"""
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c = Client("volume_list", [vg_name])
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self._ConnectList(c, node_list)
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c.Run() |
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return c.GetResults()
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def call_vg_list(self, node_list): |
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"""Gets the volume group list.
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This is a multi-node call.
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"""
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c = Client("vg_list", [])
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self._ConnectList(c, node_list)
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c.Run() |
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return c.GetResults()
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def call_bridges_exist(self, node, bridges_list): |
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"""Checks if a node has all the bridges given.
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This method checks if all bridges given in the bridges_list are
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present on the remote node, so that an instance that uses interfaces
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on those bridges can be started.
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This is a single-node call.
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"""
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c = Client("bridges_exist", [bridges_list])
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self._ConnectNode(c, node)
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c.Run() |
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return c.GetResults().get(node, False) |
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def call_instance_start(self, node, instance, extra_args): |
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"""Starts an instance.
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This is a single-node call.
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"""
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c = Client("instance_start", [self._InstDict(instance), extra_args]) |
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self._ConnectNode(c, node)
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c.Run() |
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return c.GetResults().get(node, False) |
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def call_instance_shutdown(self, node, instance): |
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"""Stops an instance.
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This is a single-node call.
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"""
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c = Client("instance_shutdown", [self._InstDict(instance)]) |
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self._ConnectNode(c, node)
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c.Run() |
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return c.GetResults().get(node, False) |
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def call_instance_migrate(self, node, instance, target, live): |
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"""Migrate an instance.
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This is a single-node call.
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@type node: string
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@param node: the node on which the instance is currently running
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@type instance: C{objects.Instance}
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@param instance: the instance definition
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@type target: string
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@param target: the target node name
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@type live: boolean
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@param live: whether the migration should be done live or not (the
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interpretation of this parameter is left to the hypervisor)
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"""
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c = Client("instance_migrate", [self._InstDict(instance), target, live]) |
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self._ConnectNode(c, node)
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c.Run() |
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return c.GetResults().get(node, False) |
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def call_instance_reboot(self, node, instance, reboot_type, extra_args): |
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"""Reboots an instance.
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This is a single-node call.
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"""
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c = Client("instance_reboot", [self._InstDict(instance), |
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reboot_type, extra_args]) |
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self._ConnectNode(c, node)
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c.Run() |
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return c.GetResults().get(node, False) |
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def call_instance_os_add(self, node, inst): |
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"""Installs an OS on the given instance.
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This is a single-node call.
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"""
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params = [self._InstDict(inst)]
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c = Client("instance_os_add", params)
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self._ConnectNode(c, node)
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c.Run() |
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return c.GetResults().get(node, False) |
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def call_instance_run_rename(self, node, inst, old_name): |
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"""Run the OS rename script for an instance.
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This is a single-node call.
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"""
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params = [self._InstDict(inst), old_name]
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c = Client("instance_run_rename", params)
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self._ConnectNode(c, node)
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c.Run() |
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return c.GetResults().get(node, False) |
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def call_instance_info(self, node, instance, hname): |
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"""Returns information about a single instance.
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This is a single-node call.
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@type node_list: list
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@param node_list: the list of nodes to query
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@type instance: string
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@param instance: the instance name
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@type hname: string
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@param hname: the hypervisor type of the instance
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"""
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c = Client("instance_info", [instance, hname])
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self._ConnectNode(c, node)
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c.Run() |
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return c.GetResults().get(node, False) |
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def call_all_instances_info(self, node_list, hypervisor_list): |
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"""Returns information about all instances on the given nodes.
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This is a multi-node call.
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@type node_list: list
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@param node_list: the list of nodes to query
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@type hypervisor_list: list
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@param hypervisor_list: the hypervisors to query for instances
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"""
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c = Client("all_instances_info", [hypervisor_list])
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self._ConnectList(c, node_list)
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c.Run() |
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return c.GetResults()
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def call_instance_list(self, node_list, hypervisor_list): |
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"""Returns the list of running instances on a given node.
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This is a multi-node call.
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@type node_list: list
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@param node_list: the list of nodes to query
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@type hypervisor_list: list
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@param hypervisor_list: the hypervisors to query for instances
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"""
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c = Client("instance_list", [hypervisor_list])
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self._ConnectList(c, node_list)
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c.Run() |
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return c.GetResults()
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def call_node_tcp_ping(self, node, source, target, port, timeout, |
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live_port_needed): |
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"""Do a TcpPing on the remote node
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This is a single-node call.
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"""
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c = Client("node_tcp_ping", [source, target, port, timeout,
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live_port_needed]) |
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self._ConnectNode(c, node)
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c.Run() |
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return c.GetResults().get(node, False) |
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def call_node_has_ip_address(self, node, address): |
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"""Checks if a node has the given IP address.
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This is a single-node call.
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"""
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c = Client("node_has_ip_address", [address])
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self._ConnectNode(c, node)
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c.Run() |
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return c.GetResults().get(node, False) |
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def call_node_info(self, node_list, vg_name, hypervisor_type): |
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"""Return node information.
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This will return memory information and volume group size and free
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space.
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This is a multi-node call.
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@type node_list: list
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@param node_list: the list of nodes to query
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@type vgname: C{string}
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@param vgname: the name of the volume group to ask for disk space
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information
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@type hypervisor_type: C{str}
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@param hypervisor_type: the name of the hypervisor to ask for
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memory information
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"""
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c = Client("node_info", [vg_name, hypervisor_type])
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self._ConnectList(c, node_list)
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c.Run() |
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retux = c.GetResults() |
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for node_name in retux: |
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ret = retux.get(node_name, False)
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if type(ret) != dict: |
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logging.error("could not connect to node %s", node_name)
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ret = {} |
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utils.CheckDict(ret, |
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{ 'memory_total' : '-', |
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'memory_dom0' : '-', |
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'memory_free' : '-', |
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'vg_size' : 'node_unreachable', |
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'vg_free' : '-' }, |
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"call_node_info",
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) |
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return retux
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def call_node_add(self, node, dsa, dsapub, rsa, rsapub, ssh, sshpub): |
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"""Add a node to the cluster.
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This is a single-node call.
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"""
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params = [dsa, dsapub, rsa, rsapub, ssh, sshpub] |
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c = Client("node_add", params)
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self._ConnectNode(c, node)
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c.Run() |
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return c.GetResults().get(node, False) |
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def call_node_verify(self, node_list, checkdict, cluster_name): |
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"""Request verification of given parameters.
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This is a multi-node call.
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"""
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c = Client("node_verify", [checkdict, cluster_name])
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self._ConnectList(c, node_list)
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c.Run() |
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return c.GetResults()
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@staticmethod
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def call_node_start_master(node, start_daemons): |
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"""Tells a node to activate itself as a master.
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This is a single-node call.
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"""
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c = Client("node_start_master", [start_daemons])
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c.ConnectNode(node) |
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c.Run() |
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return c.GetResults().get(node, False) |
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@staticmethod
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def call_node_stop_master(node, stop_daemons): |
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"""Tells a node to demote itself from master status.
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This is a single-node call.
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"""
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c = Client("node_stop_master", [stop_daemons])
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c.ConnectNode(node) |
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c.Run() |
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return c.GetResults().get(node, False) |
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|
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@staticmethod
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def call_master_info(node_list): |
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"""Query master info.
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This is a multi-node call.
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"""
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# TODO: should this method query down nodes?
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c = Client("master_info", [])
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c.ConnectList(node_list) |
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c.Run() |
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return c.GetResults()
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|
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def call_version(self, node_list): |
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"""Query node version.
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542 |
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This is a multi-node call.
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544 |
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"""
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c = Client("version", [])
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self._ConnectList(c, node_list)
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c.Run() |
549 |
return c.GetResults()
|
550 |
|
551 |
def call_blockdev_create(self, node, bdev, size, owner, on_primary, info): |
552 |
"""Request creation of a given block device.
|
553 |
|
554 |
This is a single-node call.
|
555 |
|
556 |
"""
|
557 |
params = [bdev.ToDict(), size, owner, on_primary, info] |
558 |
c = Client("blockdev_create", params)
|
559 |
self._ConnectNode(c, node)
|
560 |
c.Run() |
561 |
return c.GetResults().get(node, False) |
562 |
|
563 |
def call_blockdev_remove(self, node, bdev): |
564 |
"""Request removal of a given block device.
|
565 |
|
566 |
This is a single-node call.
|
567 |
|
568 |
"""
|
569 |
c = Client("blockdev_remove", [bdev.ToDict()])
|
570 |
self._ConnectNode(c, node)
|
571 |
c.Run() |
572 |
return c.GetResults().get(node, False) |
573 |
|
574 |
def call_blockdev_rename(self, node, devlist): |
575 |
"""Request rename of the given block devices.
|
576 |
|
577 |
This is a single-node call.
|
578 |
|
579 |
"""
|
580 |
params = [(d.ToDict(), uid) for d, uid in devlist] |
581 |
c = Client("blockdev_rename", params)
|
582 |
self._ConnectNode(c, node)
|
583 |
c.Run() |
584 |
return c.GetResults().get(node, False) |
585 |
|
586 |
def call_blockdev_assemble(self, node, disk, owner, on_primary): |
587 |
"""Request assembling of a given block device.
|
588 |
|
589 |
This is a single-node call.
|
590 |
|
591 |
"""
|
592 |
params = [disk.ToDict(), owner, on_primary] |
593 |
c = Client("blockdev_assemble", params)
|
594 |
self._ConnectNode(c, node)
|
595 |
c.Run() |
596 |
return c.GetResults().get(node, False) |
597 |
|
598 |
def call_blockdev_shutdown(self, node, disk): |
599 |
"""Request shutdown of a given block device.
|
600 |
|
601 |
This is a single-node call.
|
602 |
|
603 |
"""
|
604 |
c = Client("blockdev_shutdown", [disk.ToDict()])
|
605 |
self._ConnectNode(c, node)
|
606 |
c.Run() |
607 |
return c.GetResults().get(node, False) |
608 |
|
609 |
def call_blockdev_addchildren(self, node, bdev, ndevs): |
610 |
"""Request adding a list of children to a (mirroring) device.
|
611 |
|
612 |
This is a single-node call.
|
613 |
|
614 |
"""
|
615 |
params = [bdev.ToDict(), [disk.ToDict() for disk in ndevs]] |
616 |
c = Client("blockdev_addchildren", params)
|
617 |
self._ConnectNode(c, node)
|
618 |
c.Run() |
619 |
return c.GetResults().get(node, False) |
620 |
|
621 |
def call_blockdev_removechildren(self, node, bdev, ndevs): |
622 |
"""Request removing a list of children from a (mirroring) device.
|
623 |
|
624 |
This is a single-node call.
|
625 |
|
626 |
"""
|
627 |
params = [bdev.ToDict(), [disk.ToDict() for disk in ndevs]] |
628 |
c = Client("blockdev_removechildren", params)
|
629 |
self._ConnectNode(c, node)
|
630 |
c.Run() |
631 |
return c.GetResults().get(node, False) |
632 |
|
633 |
def call_blockdev_getmirrorstatus(self, node, disks): |
634 |
"""Request status of a (mirroring) device.
|
635 |
|
636 |
This is a single-node call.
|
637 |
|
638 |
"""
|
639 |
params = [dsk.ToDict() for dsk in disks] |
640 |
c = Client("blockdev_getmirrorstatus", params)
|
641 |
self._ConnectNode(c, node)
|
642 |
c.Run() |
643 |
return c.GetResults().get(node, False) |
644 |
|
645 |
def call_blockdev_find(self, node, disk): |
646 |
"""Request identification of a given block device.
|
647 |
|
648 |
This is a single-node call.
|
649 |
|
650 |
"""
|
651 |
c = Client("blockdev_find", [disk.ToDict()])
|
652 |
self._ConnectNode(c, node)
|
653 |
c.Run() |
654 |
return c.GetResults().get(node, False) |
655 |
|
656 |
def call_blockdev_close(self, node, disks): |
657 |
"""Closes the given block devices.
|
658 |
|
659 |
This is a single-node call.
|
660 |
|
661 |
"""
|
662 |
params = [cf.ToDict() for cf in disks] |
663 |
c = Client("blockdev_close", params)
|
664 |
self._ConnectNode(c, node)
|
665 |
c.Run() |
666 |
return c.GetResults().get(node, False) |
667 |
|
668 |
@staticmethod
|
669 |
def call_upload_file(node_list, file_name, address_list=None): |
670 |
"""Upload a file.
|
671 |
|
672 |
The node will refuse the operation in case the file is not on the
|
673 |
approved file list.
|
674 |
|
675 |
This is a multi-node call.
|
676 |
|
677 |
@type node_list: list
|
678 |
@param node_list: the list of node names to upload to
|
679 |
@type file_name: str
|
680 |
@param file_name: the filename to upload
|
681 |
@type address_list: list or None
|
682 |
@keyword address_list: an optional list of node addresses, in order
|
683 |
to optimize the RPC speed
|
684 |
|
685 |
"""
|
686 |
fh = file(file_name)
|
687 |
try:
|
688 |
data = fh.read() |
689 |
finally:
|
690 |
fh.close() |
691 |
st = os.stat(file_name) |
692 |
params = [file_name, data, st.st_mode, st.st_uid, st.st_gid, |
693 |
st.st_atime, st.st_mtime] |
694 |
c = Client("upload_file", params)
|
695 |
c.ConnectList(node_list, address_list=address_list) |
696 |
c.Run() |
697 |
return c.GetResults()
|
698 |
|
699 |
def call_os_diagnose(self, node_list): |
700 |
"""Request a diagnose of OS definitions.
|
701 |
|
702 |
This is a multi-node call.
|
703 |
|
704 |
"""
|
705 |
c = Client("os_diagnose", [])
|
706 |
self._ConnectList(c, node_list)
|
707 |
c.Run() |
708 |
result = c.GetResults() |
709 |
new_result = {} |
710 |
for node_name in result: |
711 |
if result[node_name]:
|
712 |
nr = [objects.OS.FromDict(oss) for oss in result[node_name]] |
713 |
else:
|
714 |
nr = [] |
715 |
new_result[node_name] = nr |
716 |
return new_result
|
717 |
|
718 |
def call_os_get(self, node, name): |
719 |
"""Returns an OS definition.
|
720 |
|
721 |
This is a single-node call.
|
722 |
|
723 |
"""
|
724 |
c = Client("os_get", [name])
|
725 |
self._ConnectNode(c, node)
|
726 |
c.Run() |
727 |
result = c.GetResults().get(node, False)
|
728 |
if isinstance(result, dict): |
729 |
return objects.OS.FromDict(result)
|
730 |
else:
|
731 |
return result
|
732 |
|
733 |
def call_hooks_runner(self, node_list, hpath, phase, env): |
734 |
"""Call the hooks runner.
|
735 |
|
736 |
Args:
|
737 |
- op: the OpCode instance
|
738 |
- env: a dictionary with the environment
|
739 |
|
740 |
This is a multi-node call.
|
741 |
|
742 |
"""
|
743 |
params = [hpath, phase, env] |
744 |
c = Client("hooks_runner", params)
|
745 |
self._ConnectList(c, node_list)
|
746 |
c.Run() |
747 |
result = c.GetResults() |
748 |
return result
|
749 |
|
750 |
def call_iallocator_runner(self, node, name, idata): |
751 |
"""Call an iallocator on a remote node
|
752 |
|
753 |
Args:
|
754 |
- name: the iallocator name
|
755 |
- input: the json-encoded input string
|
756 |
|
757 |
This is a single-node call.
|
758 |
|
759 |
"""
|
760 |
params = [name, idata] |
761 |
c = Client("iallocator_runner", params)
|
762 |
self._ConnectNode(c, node)
|
763 |
c.Run() |
764 |
result = c.GetResults().get(node, False)
|
765 |
return result
|
766 |
|
767 |
def call_blockdev_grow(self, node, cf_bdev, amount): |
768 |
"""Request a snapshot of the given block device.
|
769 |
|
770 |
This is a single-node call.
|
771 |
|
772 |
"""
|
773 |
c = Client("blockdev_grow", [cf_bdev.ToDict(), amount])
|
774 |
self._ConnectNode(c, node)
|
775 |
c.Run() |
776 |
return c.GetResults().get(node, False) |
777 |
|
778 |
def call_blockdev_snapshot(self, node, cf_bdev): |
779 |
"""Request a snapshot of the given block device.
|
780 |
|
781 |
This is a single-node call.
|
782 |
|
783 |
"""
|
784 |
c = Client("blockdev_snapshot", [cf_bdev.ToDict()])
|
785 |
self._ConnectNode(c, node)
|
786 |
c.Run() |
787 |
return c.GetResults().get(node, False) |
788 |
|
789 |
def call_snapshot_export(self, node, snap_bdev, dest_node, instance, |
790 |
cluster_name): |
791 |
"""Request the export of a given snapshot.
|
792 |
|
793 |
This is a single-node call.
|
794 |
|
795 |
"""
|
796 |
params = [snap_bdev.ToDict(), dest_node, |
797 |
self._InstDict(instance), cluster_name]
|
798 |
c = Client("snapshot_export", params)
|
799 |
self._ConnectNode(c, node)
|
800 |
c.Run() |
801 |
return c.GetResults().get(node, False) |
802 |
|
803 |
def call_finalize_export(self, node, instance, snap_disks): |
804 |
"""Request the completion of an export operation.
|
805 |
|
806 |
This writes the export config file, etc.
|
807 |
|
808 |
This is a single-node call.
|
809 |
|
810 |
"""
|
811 |
flat_disks = [] |
812 |
for disk in snap_disks: |
813 |
flat_disks.append(disk.ToDict()) |
814 |
params = [self._InstDict(instance), flat_disks]
|
815 |
c = Client("finalize_export", params)
|
816 |
self._ConnectNode(c, node)
|
817 |
c.Run() |
818 |
return c.GetResults().get(node, False) |
819 |
|
820 |
def call_export_info(self, node, path): |
821 |
"""Queries the export information in a given path.
|
822 |
|
823 |
This is a single-node call.
|
824 |
|
825 |
"""
|
826 |
c = Client("export_info", [path])
|
827 |
self._ConnectNode(c, node)
|
828 |
c.Run() |
829 |
result = c.GetResults().get(node, False)
|
830 |
if not result: |
831 |
return result
|
832 |
return objects.SerializableConfigParser.Loads(str(result)) |
833 |
|
834 |
def call_instance_os_import(self, node, inst, src_node, src_images, |
835 |
cluster_name): |
836 |
"""Request the import of a backup into an instance.
|
837 |
|
838 |
This is a single-node call.
|
839 |
|
840 |
"""
|
841 |
params = [self._InstDict(inst), src_node, src_images, cluster_name]
|
842 |
c = Client("instance_os_import", params)
|
843 |
self._ConnectNode(c, node)
|
844 |
c.Run() |
845 |
return c.GetResults().get(node, False) |
846 |
|
847 |
def call_export_list(self, node_list): |
848 |
"""Gets the stored exports list.
|
849 |
|
850 |
This is a multi-node call.
|
851 |
|
852 |
"""
|
853 |
c = Client("export_list", [])
|
854 |
self._ConnectList(c, node_list)
|
855 |
c.Run() |
856 |
result = c.GetResults() |
857 |
return result
|
858 |
|
859 |
def call_export_remove(self, node, export): |
860 |
"""Requests removal of a given export.
|
861 |
|
862 |
This is a single-node call.
|
863 |
|
864 |
"""
|
865 |
c = Client("export_remove", [export])
|
866 |
self._ConnectNode(c, node)
|
867 |
c.Run() |
868 |
return c.GetResults().get(node, False) |
869 |
|
870 |
@staticmethod
|
871 |
def call_node_leave_cluster(node): |
872 |
"""Requests a node to clean the cluster information it has.
|
873 |
|
874 |
This will remove the configuration information from the ganeti data
|
875 |
dir.
|
876 |
|
877 |
This is a single-node call.
|
878 |
|
879 |
"""
|
880 |
c = Client("node_leave_cluster", [])
|
881 |
c.ConnectNode(node) |
882 |
c.Run() |
883 |
return c.GetResults().get(node, False) |
884 |
|
885 |
def call_node_volumes(self, node_list): |
886 |
"""Gets all volumes on node(s).
|
887 |
|
888 |
This is a multi-node call.
|
889 |
|
890 |
"""
|
891 |
c = Client("node_volumes", [])
|
892 |
self._ConnectList(c, node_list)
|
893 |
c.Run() |
894 |
return c.GetResults()
|
895 |
|
896 |
def call_test_delay(self, node_list, duration): |
897 |
"""Sleep for a fixed time on given node(s).
|
898 |
|
899 |
This is a multi-node call.
|
900 |
|
901 |
"""
|
902 |
c = Client("test_delay", [duration])
|
903 |
self._ConnectList(c, node_list)
|
904 |
c.Run() |
905 |
return c.GetResults()
|
906 |
|
907 |
def call_file_storage_dir_create(self, node, file_storage_dir): |
908 |
"""Create the given file storage directory.
|
909 |
|
910 |
This is a single-node call.
|
911 |
|
912 |
"""
|
913 |
c = Client("file_storage_dir_create", [file_storage_dir])
|
914 |
self._ConnectNode(c, node)
|
915 |
c.Run() |
916 |
return c.GetResults().get(node, False) |
917 |
|
918 |
def call_file_storage_dir_remove(self, node, file_storage_dir): |
919 |
"""Remove the given file storage directory.
|
920 |
|
921 |
This is a single-node call.
|
922 |
|
923 |
"""
|
924 |
c = Client("file_storage_dir_remove", [file_storage_dir])
|
925 |
self._ConnectNode(c, node)
|
926 |
c.Run() |
927 |
return c.GetResults().get(node, False) |
928 |
|
929 |
def call_file_storage_dir_rename(self, node, old_file_storage_dir, |
930 |
new_file_storage_dir): |
931 |
"""Rename file storage directory.
|
932 |
|
933 |
This is a single-node call.
|
934 |
|
935 |
"""
|
936 |
c = Client("file_storage_dir_rename",
|
937 |
[old_file_storage_dir, new_file_storage_dir]) |
938 |
self._ConnectNode(c, node)
|
939 |
c.Run() |
940 |
return c.GetResults().get(node, False) |
941 |
|
942 |
@staticmethod
|
943 |
def call_jobqueue_update(node_list, address_list, file_name, content): |
944 |
"""Update job queue.
|
945 |
|
946 |
This is a multi-node call.
|
947 |
|
948 |
"""
|
949 |
c = Client("jobqueue_update", [file_name, content])
|
950 |
c.ConnectList(node_list, address_list=address_list) |
951 |
c.Run() |
952 |
result = c.GetResults() |
953 |
return result
|
954 |
|
955 |
@staticmethod
|
956 |
def call_jobqueue_purge(node): |
957 |
"""Purge job queue.
|
958 |
|
959 |
This is a single-node call.
|
960 |
|
961 |
"""
|
962 |
c = Client("jobqueue_purge", [])
|
963 |
c.ConnectNode(node) |
964 |
c.Run() |
965 |
return c.GetResults().get(node, False) |
966 |
|
967 |
@staticmethod
|
968 |
def call_jobqueue_rename(node_list, address_list, old, new): |
969 |
"""Rename a job queue file.
|
970 |
|
971 |
This is a multi-node call.
|
972 |
|
973 |
"""
|
974 |
c = Client("jobqueue_rename", [old, new])
|
975 |
c.ConnectList(node_list, address_list=address_list) |
976 |
c.Run() |
977 |
result = c.GetResults() |
978 |
return result
|
979 |
|
980 |
|
981 |
@staticmethod
|
982 |
def call_jobqueue_set_drain(node_list, drain_flag): |
983 |
"""Set the drain flag on the queue.
|
984 |
|
985 |
This is a multi-node call.
|
986 |
|
987 |
@type node_list: list
|
988 |
@param node_list: the list of nodes to query
|
989 |
@type drain_flag: bool
|
990 |
@param drain_flag: if True, will set the drain flag, otherwise reset it.
|
991 |
|
992 |
"""
|
993 |
c = Client("jobqueue_set_drain", [drain_flag])
|
994 |
c.ConnectList(node_list) |
995 |
c.Run() |
996 |
result = c.GetResults() |
997 |
return result
|
998 |
|
999 |
|
1000 |
def call_hypervisor_validate_params(self, node_list, hvname, hvparams): |
1001 |
"""Validate the hypervisor params.
|
1002 |
|
1003 |
This is a multi-node call.
|
1004 |
|
1005 |
@type node_list: list
|
1006 |
@param node_list: the list of nodes to query
|
1007 |
@type hvname: string
|
1008 |
@param hvname: the hypervisor name
|
1009 |
@type hvparams: dict
|
1010 |
@param hvparams: the hypervisor parameters to be validated
|
1011 |
|
1012 |
"""
|
1013 |
cluster = self._cfg.GetClusterInfo()
|
1014 |
hv_full = cluster.FillDict(cluster.hvparams.get(hvname, {}), hvparams) |
1015 |
c = Client("hypervisor_validate_params", [hvname, hv_full])
|
1016 |
self._ConnectList(c, node_list)
|
1017 |
c.Run() |
1018 |
result = c.GetResults() |
1019 |
return result
|