root / lib / rpc.py @ 861610e9
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2 | a8083063 | Iustin Pop | #
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3 | a8083063 | Iustin Pop | |
4 | d2cd6944 | Iustin Pop | # Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Google Inc.
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5 | a8083063 | Iustin Pop | #
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6 | a8083063 | Iustin Pop | # This program is free software; you can redistribute it and/or modify
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7 | a8083063 | Iustin Pop | # it under the terms of the GNU General Public License as published by
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8 | a8083063 | Iustin Pop | # the Free Software Foundation; either version 2 of the License, or
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9 | a8083063 | Iustin Pop | # (at your option) any later version.
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10 | a8083063 | Iustin Pop | #
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11 | a8083063 | Iustin Pop | # This program is distributed in the hope that it will be useful, but
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12 | a8083063 | Iustin Pop | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | a8083063 | Iustin Pop | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | a8083063 | Iustin Pop | # General Public License for more details.
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15 | a8083063 | Iustin Pop | #
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16 | a8083063 | Iustin Pop | # You should have received a copy of the GNU General Public License
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17 | a8083063 | Iustin Pop | # along with this program; if not, write to the Free Software
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18 | a8083063 | Iustin Pop | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | a8083063 | Iustin Pop | # 02110-1301, USA.
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20 | a8083063 | Iustin Pop | |
21 | a8083063 | Iustin Pop | |
22 | 3ef3c771 | Iustin Pop | """Inter-node RPC library.
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23 | a8083063 | Iustin Pop |
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24 | a8083063 | Iustin Pop | """
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25 | a8083063 | Iustin Pop | |
26 | b459a848 | Andrea Spadaccini | # pylint: disable=C0103,R0201,R0904
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27 | 72737a7f | Iustin Pop | # C0103: Invalid name, since call_ are not valid
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28 | 72737a7f | Iustin Pop | # R0201: Method could be a function, we keep all rpcs instance methods
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29 | 72737a7f | Iustin Pop | # as not to change them back and forth between static/instance methods
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30 | 72737a7f | Iustin Pop | # if they need to start using instance attributes
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31 | 72737a7f | Iustin Pop | # R0904: Too many public methods
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32 | a8083063 | Iustin Pop | |
33 | a8083063 | Iustin Pop | import os |
34 | 58b311ca | Iustin Pop | import logging |
35 | 12bce260 | Michael Hanselmann | import zlib |
36 | 12bce260 | Michael Hanselmann | import base64 |
37 | 33231500 | Michael Hanselmann | import pycurl |
38 | 33231500 | Michael Hanselmann | import threading |
39 | a8083063 | Iustin Pop | |
40 | a8083063 | Iustin Pop | from ganeti import utils |
41 | a8083063 | Iustin Pop | from ganeti import objects |
42 | ecfe9491 | Michael Hanselmann | from ganeti import http |
43 | 7c28c575 | Michael Hanselmann | from ganeti import serializer |
44 | eafd8762 | Michael Hanselmann | from ganeti import constants |
45 | 781de953 | Iustin Pop | from ganeti import errors |
46 | a744b676 | Manuel Franceschini | from ganeti import netutils |
47 | eb202c13 | Manuel Franceschini | from ganeti import ssconf |
48 | 9a914f7a | René Nussbaumer | from ganeti import runtime |
49 | 00267bfe | Michael Hanselmann | from ganeti import compat |
50 | cd40dc53 | Michael Hanselmann | from ganeti import rpc_defs |
51 | a8083063 | Iustin Pop | |
52 | 200de241 | Michael Hanselmann | # Special module generated at build time
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53 | 200de241 | Michael Hanselmann | from ganeti import _generated_rpc |
54 | 200de241 | Michael Hanselmann | |
55 | fe267188 | Iustin Pop | # pylint has a bug here, doesn't see this import
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56 | b459a848 | Andrea Spadaccini | import ganeti.http.client # pylint: disable=W0611 |
57 | ae88ef45 | Michael Hanselmann | |
58 | a8083063 | Iustin Pop | |
59 | 33231500 | Michael Hanselmann | # Timeout for connecting to nodes (seconds)
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60 | 33231500 | Michael Hanselmann | _RPC_CONNECT_TIMEOUT = 5
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61 | 33231500 | Michael Hanselmann | |
62 | 33231500 | Michael Hanselmann | _RPC_CLIENT_HEADERS = [ |
63 | 33231500 | Michael Hanselmann | "Content-type: %s" % http.HTTP_APP_JSON,
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64 | 8e29563f | Iustin Pop | "Expect:",
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65 | 33231500 | Michael Hanselmann | ] |
66 | 4331f6cd | Michael Hanselmann | |
67 | 92fd2250 | Iustin Pop | # Various time constants for the timeout table
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68 | 92fd2250 | Iustin Pop | _TMO_URGENT = 60 # one minute |
69 | 92fd2250 | Iustin Pop | _TMO_FAST = 5 * 60 # five minutes |
70 | 92fd2250 | Iustin Pop | _TMO_NORMAL = 15 * 60 # 15 minutes |
71 | 92fd2250 | Iustin Pop | _TMO_SLOW = 3600 # one hour |
72 | 92fd2250 | Iustin Pop | _TMO_4HRS = 4 * 3600 |
73 | 92fd2250 | Iustin Pop | _TMO_1DAY = 86400
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74 | 92fd2250 | Iustin Pop | |
75 | 00267bfe | Michael Hanselmann | #: Special value to describe an offline host
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76 | 00267bfe | Michael Hanselmann | _OFFLINE = object()
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77 | 00267bfe | Michael Hanselmann | |
78 | 4331f6cd | Michael Hanselmann | |
79 | 4331f6cd | Michael Hanselmann | def Init(): |
80 | 4331f6cd | Michael Hanselmann | """Initializes the module-global HTTP client manager.
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81 | 4331f6cd | Michael Hanselmann |
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82 | 33231500 | Michael Hanselmann | Must be called before using any RPC function and while exactly one thread is
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83 | 33231500 | Michael Hanselmann | running.
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84 | 4331f6cd | Michael Hanselmann |
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85 | 4331f6cd | Michael Hanselmann | """
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86 | 33231500 | Michael Hanselmann | # curl_global_init(3) and curl_global_cleanup(3) must be called with only
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87 | 33231500 | Michael Hanselmann | # one thread running. This check is just a safety measure -- it doesn't
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88 | 33231500 | Michael Hanselmann | # cover all cases.
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89 | 33231500 | Michael Hanselmann | assert threading.activeCount() == 1, \ |
90 | 33231500 | Michael Hanselmann | "Found more than one active thread when initializing pycURL"
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91 | 4331f6cd | Michael Hanselmann | |
92 | 33231500 | Michael Hanselmann | logging.info("Using PycURL %s", pycurl.version)
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93 | 8d0a4f99 | Michael Hanselmann | |
94 | 33231500 | Michael Hanselmann | pycurl.global_init(pycurl.GLOBAL_ALL) |
95 | 4331f6cd | Michael Hanselmann | |
96 | 4331f6cd | Michael Hanselmann | |
97 | 4331f6cd | Michael Hanselmann | def Shutdown(): |
98 | 4331f6cd | Michael Hanselmann | """Stops the module-global HTTP client manager.
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99 | 4331f6cd | Michael Hanselmann |
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100 | 33231500 | Michael Hanselmann | Must be called before quitting the program and while exactly one thread is
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101 | 33231500 | Michael Hanselmann | running.
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102 | 4331f6cd | Michael Hanselmann |
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103 | 4331f6cd | Michael Hanselmann | """
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104 | 33231500 | Michael Hanselmann | pycurl.global_cleanup() |
105 | 33231500 | Michael Hanselmann | |
106 | 33231500 | Michael Hanselmann | |
107 | 33231500 | Michael Hanselmann | def _ConfigRpcCurl(curl): |
108 | 33231500 | Michael Hanselmann | noded_cert = str(constants.NODED_CERT_FILE)
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109 | 4331f6cd | Michael Hanselmann | |
110 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.FOLLOWLOCATION, False)
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111 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.CAINFO, noded_cert) |
112 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.SSL_VERIFYHOST, 0)
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113 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.SSL_VERIFYPEER, True)
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114 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.SSLCERTTYPE, "PEM")
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115 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.SSLCERT, noded_cert) |
116 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.SSLKEYTYPE, "PEM")
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117 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.SSLKEY, noded_cert) |
118 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.CONNECTTIMEOUT, _RPC_CONNECT_TIMEOUT) |
119 | 33231500 | Michael Hanselmann | |
120 | 33231500 | Michael Hanselmann | |
121 | e0e916fe | Iustin Pop | def RunWithRPC(fn): |
122 | e0e916fe | Iustin Pop | """RPC-wrapper decorator.
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123 | e0e916fe | Iustin Pop |
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124 | e0e916fe | Iustin Pop | When applied to a function, it runs it with the RPC system
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125 | e0e916fe | Iustin Pop | initialized, and it shutsdown the system afterwards. This means the
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126 | e0e916fe | Iustin Pop | function must be called without RPC being initialized.
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127 | e0e916fe | Iustin Pop |
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128 | e0e916fe | Iustin Pop | """
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129 | e0e916fe | Iustin Pop | def wrapper(*args, **kwargs): |
130 | e0e916fe | Iustin Pop | Init() |
131 | e0e916fe | Iustin Pop | try:
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132 | e0e916fe | Iustin Pop | return fn(*args, **kwargs)
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133 | e0e916fe | Iustin Pop | finally:
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134 | e0e916fe | Iustin Pop | Shutdown() |
135 | e0e916fe | Iustin Pop | return wrapper
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136 | e0e916fe | Iustin Pop | |
137 | e0e916fe | Iustin Pop | |
138 | 30474135 | Michael Hanselmann | def _Compress(data): |
139 | 30474135 | Michael Hanselmann | """Compresses a string for transport over RPC.
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140 | 30474135 | Michael Hanselmann |
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141 | 30474135 | Michael Hanselmann | Small amounts of data are not compressed.
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142 | 30474135 | Michael Hanselmann |
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143 | 30474135 | Michael Hanselmann | @type data: str
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144 | 30474135 | Michael Hanselmann | @param data: Data
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145 | 30474135 | Michael Hanselmann | @rtype: tuple
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146 | 30474135 | Michael Hanselmann | @return: Encoded data to send
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147 | 30474135 | Michael Hanselmann |
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148 | 30474135 | Michael Hanselmann | """
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149 | 30474135 | Michael Hanselmann | # Small amounts of data are not compressed
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150 | 30474135 | Michael Hanselmann | if len(data) < 512: |
151 | 30474135 | Michael Hanselmann | return (constants.RPC_ENCODING_NONE, data)
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152 | 30474135 | Michael Hanselmann | |
153 | 30474135 | Michael Hanselmann | # Compress with zlib and encode in base64
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154 | 30474135 | Michael Hanselmann | return (constants.RPC_ENCODING_ZLIB_BASE64,
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155 | 30474135 | Michael Hanselmann | base64.b64encode(zlib.compress(data, 3)))
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156 | 30474135 | Michael Hanselmann | |
157 | 30474135 | Michael Hanselmann | |
158 | 781de953 | Iustin Pop | class RpcResult(object): |
159 | 781de953 | Iustin Pop | """RPC Result class.
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160 | 781de953 | Iustin Pop |
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161 | 781de953 | Iustin Pop | This class holds an RPC result. It is needed since in multi-node
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162 | 781de953 | Iustin Pop | calls we can't raise an exception just because one one out of many
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163 | 781de953 | Iustin Pop | failed, and therefore we use this class to encapsulate the result.
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164 | 781de953 | Iustin Pop |
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165 | 5bbd3f7f | Michael Hanselmann | @ivar data: the data payload, for successful results, or None
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166 | ed83f5cc | Iustin Pop | @ivar call: the name of the RPC call
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167 | ed83f5cc | Iustin Pop | @ivar node: the name of the node to which we made the call
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168 | ed83f5cc | Iustin Pop | @ivar offline: whether the operation failed because the node was
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169 | ed83f5cc | Iustin Pop | offline, as opposed to actual failure; offline=True will always
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170 | ed83f5cc | Iustin Pop | imply failed=True, in order to allow simpler checking if
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171 | ed83f5cc | Iustin Pop | the user doesn't care about the exact failure mode
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172 | 4c4e4e1e | Iustin Pop | @ivar fail_msg: the error message if the call failed
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173 | ed83f5cc | Iustin Pop |
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174 | 781de953 | Iustin Pop | """
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175 | ed83f5cc | Iustin Pop | def __init__(self, data=None, failed=False, offline=False, |
176 | ed83f5cc | Iustin Pop | call=None, node=None): |
177 | ed83f5cc | Iustin Pop | self.offline = offline
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178 | ed83f5cc | Iustin Pop | self.call = call
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179 | ed83f5cc | Iustin Pop | self.node = node
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180 | 1645d22d | Michael Hanselmann | |
181 | ed83f5cc | Iustin Pop | if offline:
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182 | 4c4e4e1e | Iustin Pop | self.fail_msg = "Node is marked offline" |
183 | f2def43a | Iustin Pop | self.data = self.payload = None |
184 | ed83f5cc | Iustin Pop | elif failed:
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185 | 4c4e4e1e | Iustin Pop | self.fail_msg = self._EnsureErr(data) |
186 | f2def43a | Iustin Pop | self.data = self.payload = None |
187 | 781de953 | Iustin Pop | else:
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188 | 781de953 | Iustin Pop | self.data = data
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189 | d3c8b360 | Iustin Pop | if not isinstance(self.data, (tuple, list)): |
190 | 4c4e4e1e | Iustin Pop | self.fail_msg = ("RPC layer error: invalid result type (%s)" % |
191 | 4c4e4e1e | Iustin Pop | type(self.data)) |
192 | 1645d22d | Michael Hanselmann | self.payload = None |
193 | d3c8b360 | Iustin Pop | elif len(data) != 2: |
194 | 4c4e4e1e | Iustin Pop | self.fail_msg = ("RPC layer error: invalid result length (%d), " |
195 | 4c4e4e1e | Iustin Pop | "expected 2" % len(self.data)) |
196 | 1645d22d | Michael Hanselmann | self.payload = None |
197 | d3c8b360 | Iustin Pop | elif not self.data[0]: |
198 | 4c4e4e1e | Iustin Pop | self.fail_msg = self._EnsureErr(self.data[1]) |
199 | 1645d22d | Michael Hanselmann | self.payload = None |
200 | f2def43a | Iustin Pop | else:
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201 | d3c8b360 | Iustin Pop | # finally success
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202 | 4c4e4e1e | Iustin Pop | self.fail_msg = None |
203 | d3c8b360 | Iustin Pop | self.payload = data[1] |
204 | d3c8b360 | Iustin Pop | |
205 | 2c0f74f2 | Iustin Pop | for attr_name in ["call", "data", "fail_msg", |
206 | 2c0f74f2 | Iustin Pop | "node", "offline", "payload"]: |
207 | 2c0f74f2 | Iustin Pop | assert hasattr(self, attr_name), "Missing attribute %s" % attr_name |
208 | 1645d22d | Michael Hanselmann | |
209 | d3c8b360 | Iustin Pop | @staticmethod
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210 | d3c8b360 | Iustin Pop | def _EnsureErr(val): |
211 | d3c8b360 | Iustin Pop | """Helper to ensure we return a 'True' value for error."""
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212 | d3c8b360 | Iustin Pop | if val:
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213 | d3c8b360 | Iustin Pop | return val
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214 | d3c8b360 | Iustin Pop | else:
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215 | d3c8b360 | Iustin Pop | return "No error information" |
216 | 781de953 | Iustin Pop | |
217 | 045dd6d9 | Iustin Pop | def Raise(self, msg, prereq=False, ecode=None): |
218 | 781de953 | Iustin Pop | """If the result has failed, raise an OpExecError.
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219 | 781de953 | Iustin Pop |
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220 | 781de953 | Iustin Pop | This is used so that LU code doesn't have to check for each
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221 | 781de953 | Iustin Pop | result, but instead can call this function.
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222 | 781de953 | Iustin Pop |
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223 | 781de953 | Iustin Pop | """
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224 | 4c4e4e1e | Iustin Pop | if not self.fail_msg: |
225 | 4c4e4e1e | Iustin Pop | return
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226 | 4c4e4e1e | Iustin Pop | |
227 | 4c4e4e1e | Iustin Pop | if not msg: # one could pass None for default message |
228 | 4c4e4e1e | Iustin Pop | msg = ("Call '%s' to node '%s' has failed: %s" %
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229 | 4c4e4e1e | Iustin Pop | (self.call, self.node, self.fail_msg)) |
230 | 4c4e4e1e | Iustin Pop | else:
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231 | 4c4e4e1e | Iustin Pop | msg = "%s: %s" % (msg, self.fail_msg) |
232 | 4c4e4e1e | Iustin Pop | if prereq:
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233 | 4c4e4e1e | Iustin Pop | ec = errors.OpPrereqError |
234 | 4c4e4e1e | Iustin Pop | else:
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235 | 4c4e4e1e | Iustin Pop | ec = errors.OpExecError |
236 | 045dd6d9 | Iustin Pop | if ecode is not None: |
237 | 27137e55 | Iustin Pop | args = (msg, ecode) |
238 | 045dd6d9 | Iustin Pop | else:
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239 | 045dd6d9 | Iustin Pop | args = (msg, ) |
240 | b459a848 | Andrea Spadaccini | raise ec(*args) # pylint: disable=W0142 |
241 | 781de953 | Iustin Pop | |
242 | 781de953 | Iustin Pop | |
243 | 00267bfe | Michael Hanselmann | def _SsconfResolver(node_list, |
244 | 00267bfe | Michael Hanselmann | ssc=ssconf.SimpleStore, |
245 | 00267bfe | Michael Hanselmann | nslookup_fn=netutils.Hostname.GetIP): |
246 | eb202c13 | Manuel Franceschini | """Return addresses for given node names.
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247 | eb202c13 | Manuel Franceschini |
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248 | eb202c13 | Manuel Franceschini | @type node_list: list
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249 | eb202c13 | Manuel Franceschini | @param node_list: List of node names
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250 | eb202c13 | Manuel Franceschini | @type ssc: class
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251 | eb202c13 | Manuel Franceschini | @param ssc: SimpleStore class that is used to obtain node->ip mappings
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252 | 17f7fd27 | Manuel Franceschini | @type nslookup_fn: callable
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253 | 17f7fd27 | Manuel Franceschini | @param nslookup_fn: function use to do NS lookup
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254 | 00267bfe | Michael Hanselmann | @rtype: list of tuple; (string, string)
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255 | 00267bfe | Michael Hanselmann | @return: List of tuples containing node name and IP address
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256 | eb202c13 | Manuel Franceschini |
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257 | eb202c13 | Manuel Franceschini | """
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258 | b43dcc5a | Manuel Franceschini | ss = ssc() |
259 | b43dcc5a | Manuel Franceschini | iplist = ss.GetNodePrimaryIPList() |
260 | b43dcc5a | Manuel Franceschini | family = ss.GetPrimaryIPFamily() |
261 | b705c7a6 | Manuel Franceschini | ipmap = dict(entry.split() for entry in iplist) |
262 | 00267bfe | Michael Hanselmann | |
263 | 00267bfe | Michael Hanselmann | result = [] |
264 | b705c7a6 | Manuel Franceschini | for node in node_list: |
265 | 00267bfe | Michael Hanselmann | ip = ipmap.get(node) |
266 | 00267bfe | Michael Hanselmann | if ip is None: |
267 | 00267bfe | Michael Hanselmann | ip = nslookup_fn(node, family=family) |
268 | 00267bfe | Michael Hanselmann | result.append((node, ip)) |
269 | 00267bfe | Michael Hanselmann | |
270 | 00267bfe | Michael Hanselmann | return result
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271 | 00267bfe | Michael Hanselmann | |
272 | 00267bfe | Michael Hanselmann | |
273 | 00267bfe | Michael Hanselmann | class _StaticResolver: |
274 | 00267bfe | Michael Hanselmann | def __init__(self, addresses): |
275 | 00267bfe | Michael Hanselmann | """Initializes this class.
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276 | 00267bfe | Michael Hanselmann |
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277 | 00267bfe | Michael Hanselmann | """
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278 | 00267bfe | Michael Hanselmann | self._addresses = addresses
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279 | 00267bfe | Michael Hanselmann | |
280 | 00267bfe | Michael Hanselmann | def __call__(self, hosts): |
281 | 00267bfe | Michael Hanselmann | """Returns static addresses for hosts.
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282 | 00267bfe | Michael Hanselmann |
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283 | 00267bfe | Michael Hanselmann | """
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284 | 00267bfe | Michael Hanselmann | assert len(hosts) == len(self._addresses) |
285 | 00267bfe | Michael Hanselmann | return zip(hosts, self._addresses) |
286 | 00267bfe | Michael Hanselmann | |
287 | eb202c13 | Manuel Franceschini | |
288 | 00267bfe | Michael Hanselmann | def _CheckConfigNode(name, node): |
289 | 00267bfe | Michael Hanselmann | """Checks if a node is online.
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290 | eb202c13 | Manuel Franceschini |
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291 | 00267bfe | Michael Hanselmann | @type name: string
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292 | 00267bfe | Michael Hanselmann | @param name: Node name
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293 | 00267bfe | Michael Hanselmann | @type node: L{objects.Node} or None
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294 | 00267bfe | Michael Hanselmann | @param node: Node object
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295 | eb202c13 | Manuel Franceschini |
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296 | 00267bfe | Michael Hanselmann | """
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297 | 00267bfe | Michael Hanselmann | if node is None: |
298 | 00267bfe | Michael Hanselmann | # Depend on DNS for name resolution
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299 | 00267bfe | Michael Hanselmann | ip = name |
300 | 00267bfe | Michael Hanselmann | elif node.offline:
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301 | 00267bfe | Michael Hanselmann | ip = _OFFLINE |
302 | 00267bfe | Michael Hanselmann | else:
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303 | 00267bfe | Michael Hanselmann | ip = node.primary_ip |
304 | 00267bfe | Michael Hanselmann | return (name, ip)
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305 | a8083063 | Iustin Pop | |
306 | a8083063 | Iustin Pop | |
307 | 00267bfe | Michael Hanselmann | def _NodeConfigResolver(single_node_fn, all_nodes_fn, hosts): |
308 | 00267bfe | Michael Hanselmann | """Calculate node addresses using configuration.
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309 | a8083063 | Iustin Pop |
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310 | a8083063 | Iustin Pop | """
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311 | 00267bfe | Michael Hanselmann | # Special case for single-host lookups
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312 | 00267bfe | Michael Hanselmann | if len(hosts) == 1: |
313 | 00267bfe | Michael Hanselmann | (name, ) = hosts |
314 | 00267bfe | Michael Hanselmann | return [_CheckConfigNode(name, single_node_fn(name))]
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315 | 00267bfe | Michael Hanselmann | else:
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316 | 00267bfe | Michael Hanselmann | all_nodes = all_nodes_fn() |
317 | 00267bfe | Michael Hanselmann | return [_CheckConfigNode(name, all_nodes.get(name, None)) |
318 | 00267bfe | Michael Hanselmann | for name in hosts] |
319 | 00267bfe | Michael Hanselmann | |
320 | 00267bfe | Michael Hanselmann | |
321 | 00267bfe | Michael Hanselmann | class _RpcProcessor: |
322 | aea5caef | Michael Hanselmann | def __init__(self, resolver, port, lock_monitor_cb=None): |
323 | 00267bfe | Michael Hanselmann | """Initializes this class.
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324 | 00267bfe | Michael Hanselmann |
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325 | 00267bfe | Michael Hanselmann | @param resolver: callable accepting a list of hostnames, returning a list
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326 | 00267bfe | Michael Hanselmann | of tuples containing name and IP address (IP address can be the name or
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327 | 00267bfe | Michael Hanselmann | the special value L{_OFFLINE} to mark offline machines)
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328 | 00267bfe | Michael Hanselmann | @type port: int
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329 | 00267bfe | Michael Hanselmann | @param port: TCP port
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330 | aea5caef | Michael Hanselmann | @param lock_monitor_cb: Callable for registering with lock monitor
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331 | 3ef3c771 | Iustin Pop |
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332 | a8083063 | Iustin Pop | """
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333 | 00267bfe | Michael Hanselmann | self._resolver = resolver
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334 | 00267bfe | Michael Hanselmann | self._port = port
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335 | aea5caef | Michael Hanselmann | self._lock_monitor_cb = lock_monitor_cb
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336 | eb202c13 | Manuel Franceschini | |
337 | 00267bfe | Michael Hanselmann | @staticmethod
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338 | 00267bfe | Michael Hanselmann | def _PrepareRequests(hosts, port, procedure, body, read_timeout): |
339 | 00267bfe | Michael Hanselmann | """Prepares requests by sorting offline hosts into separate list.
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340 | eb202c13 | Manuel Franceschini |
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341 | 00267bfe | Michael Hanselmann | """
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342 | 00267bfe | Michael Hanselmann | results = {} |
343 | 00267bfe | Michael Hanselmann | requests = {} |
344 | bdf7d8c0 | Iustin Pop | |
345 | 00267bfe | Michael Hanselmann | for (name, ip) in hosts: |
346 | 00267bfe | Michael Hanselmann | if ip is _OFFLINE: |
347 | 00267bfe | Michael Hanselmann | # Node is marked as offline
|
348 | 00267bfe | Michael Hanselmann | results[name] = RpcResult(node=name, offline=True, call=procedure)
|
349 | 00267bfe | Michael Hanselmann | else:
|
350 | 00267bfe | Michael Hanselmann | requests[name] = \ |
351 | 00267bfe | Michael Hanselmann | http.client.HttpClientRequest(str(ip), port,
|
352 | 00267bfe | Michael Hanselmann | http.HTTP_PUT, str("/%s" % procedure), |
353 | 00267bfe | Michael Hanselmann | headers=_RPC_CLIENT_HEADERS, |
354 | 00267bfe | Michael Hanselmann | post_data=body, |
355 | 7cb2d205 | Michael Hanselmann | read_timeout=read_timeout, |
356 | abbf2cd9 | Michael Hanselmann | nicename="%s/%s" % (name, procedure),
|
357 | abbf2cd9 | Michael Hanselmann | curl_config_fn=_ConfigRpcCurl) |
358 | a8083063 | Iustin Pop | |
359 | 00267bfe | Michael Hanselmann | return (results, requests)
|
360 | 00267bfe | Michael Hanselmann | |
361 | 00267bfe | Michael Hanselmann | @staticmethod
|
362 | 00267bfe | Michael Hanselmann | def _CombineResults(results, requests, procedure): |
363 | 00267bfe | Michael Hanselmann | """Combines pre-computed results for offline hosts with actual call results.
|
364 | bdf7d8c0 | Iustin Pop |
|
365 | a8083063 | Iustin Pop | """
|
366 | 00267bfe | Michael Hanselmann | for name, req in requests.items(): |
367 | 00267bfe | Michael Hanselmann | if req.success and req.resp_status_code == http.HTTP_OK: |
368 | 00267bfe | Michael Hanselmann | host_result = RpcResult(data=serializer.LoadJson(req.resp_body), |
369 | 00267bfe | Michael Hanselmann | node=name, call=procedure) |
370 | 00267bfe | Michael Hanselmann | else:
|
371 | 00267bfe | Michael Hanselmann | # TODO: Better error reporting
|
372 | 00267bfe | Michael Hanselmann | if req.error:
|
373 | 00267bfe | Michael Hanselmann | msg = req.error |
374 | 00267bfe | Michael Hanselmann | else:
|
375 | 00267bfe | Michael Hanselmann | msg = req.resp_body |
376 | eb202c13 | Manuel Franceschini | |
377 | 00267bfe | Michael Hanselmann | logging.error("RPC error in %s on node %s: %s", procedure, name, msg)
|
378 | 00267bfe | Michael Hanselmann | host_result = RpcResult(data=msg, failed=True, node=name,
|
379 | 00267bfe | Michael Hanselmann | call=procedure) |
380 | ecfe9491 | Michael Hanselmann | |
381 | 00267bfe | Michael Hanselmann | results[name] = host_result |
382 | 92fd2250 | Iustin Pop | |
383 | 00267bfe | Michael Hanselmann | return results
|
384 | a8083063 | Iustin Pop | |
385 | abbf2cd9 | Michael Hanselmann | def __call__(self, hosts, procedure, body, read_timeout=None, |
386 | abbf2cd9 | Michael Hanselmann | _req_process_fn=http.client.ProcessRequests): |
387 | 00267bfe | Michael Hanselmann | """Makes an RPC request to a number of nodes.
|
388 | ecfe9491 | Michael Hanselmann |
|
389 | 00267bfe | Michael Hanselmann | @type hosts: sequence
|
390 | 00267bfe | Michael Hanselmann | @param hosts: Hostnames
|
391 | 00267bfe | Michael Hanselmann | @type procedure: string
|
392 | 00267bfe | Michael Hanselmann | @param procedure: Request path
|
393 | 00267bfe | Michael Hanselmann | @type body: string
|
394 | 00267bfe | Michael Hanselmann | @param body: Request body
|
395 | 00267bfe | Michael Hanselmann | @type read_timeout: int or None
|
396 | 00267bfe | Michael Hanselmann | @param read_timeout: Read timeout for request
|
397 | a8083063 | Iustin Pop |
|
398 | a8083063 | Iustin Pop | """
|
399 | 83e7af18 | Michael Hanselmann | assert read_timeout is not None, \ |
400 | 83e7af18 | Michael Hanselmann | "Missing RPC read timeout for procedure '%s'" % procedure
|
401 | a8083063 | Iustin Pop | |
402 | 00267bfe | Michael Hanselmann | (results, requests) = \ |
403 | 00267bfe | Michael Hanselmann | self._PrepareRequests(self._resolver(hosts), self._port, procedure, |
404 | 00267bfe | Michael Hanselmann | str(body), read_timeout)
|
405 | a8083063 | Iustin Pop | |
406 | abbf2cd9 | Michael Hanselmann | _req_process_fn(requests.values(), lock_monitor_cb=self._lock_monitor_cb)
|
407 | a8083063 | Iustin Pop | |
408 | 00267bfe | Michael Hanselmann | assert not frozenset(results).intersection(requests) |
409 | ecfe9491 | Michael Hanselmann | |
410 | 00267bfe | Michael Hanselmann | return self._CombineResults(results, requests, procedure) |
411 | a8083063 | Iustin Pop | |
412 | a8083063 | Iustin Pop | |
413 | cd40dc53 | Michael Hanselmann | class _RpcClientBase: |
414 | cd40dc53 | Michael Hanselmann | def __init__(self, resolver, encoder_fn, lock_monitor_cb=None): |
415 | cd40dc53 | Michael Hanselmann | """Initializes this class.
|
416 | cd40dc53 | Michael Hanselmann |
|
417 | cd40dc53 | Michael Hanselmann | """
|
418 | cd40dc53 | Michael Hanselmann | self._proc = _RpcProcessor(resolver,
|
419 | cd40dc53 | Michael Hanselmann | netutils.GetDaemonPort(constants.NODED), |
420 | cd40dc53 | Michael Hanselmann | lock_monitor_cb=lock_monitor_cb) |
421 | cd40dc53 | Michael Hanselmann | self._encoder = compat.partial(self._EncodeArg, encoder_fn) |
422 | cd40dc53 | Michael Hanselmann | |
423 | cd40dc53 | Michael Hanselmann | @staticmethod
|
424 | cd40dc53 | Michael Hanselmann | def _EncodeArg(encoder_fn, (argkind, value)): |
425 | cd40dc53 | Michael Hanselmann | """Encode argument.
|
426 | cd40dc53 | Michael Hanselmann |
|
427 | cd40dc53 | Michael Hanselmann | """
|
428 | cd40dc53 | Michael Hanselmann | if argkind is None: |
429 | cd40dc53 | Michael Hanselmann | return value
|
430 | cd40dc53 | Michael Hanselmann | else:
|
431 | cd40dc53 | Michael Hanselmann | return encoder_fn(argkind)(value)
|
432 | cd40dc53 | Michael Hanselmann | |
433 | f7d9b3aa | Michael Hanselmann | def _Call(self, cdef, node_list, args): |
434 | cd40dc53 | Michael Hanselmann | """Entry point for automatically generated RPC wrappers.
|
435 | cd40dc53 | Michael Hanselmann |
|
436 | cd40dc53 | Michael Hanselmann | """
|
437 | f7d9b3aa | Michael Hanselmann | (procedure, _, timeout, argdefs, postproc_fn, _) = cdef |
438 | f7d9b3aa | Michael Hanselmann | |
439 | f7d9b3aa | Michael Hanselmann | if callable(timeout): |
440 | f7d9b3aa | Michael Hanselmann | read_timeout = timeout(args) |
441 | f7d9b3aa | Michael Hanselmann | else:
|
442 | f7d9b3aa | Michael Hanselmann | read_timeout = timeout |
443 | cd40dc53 | Michael Hanselmann | |
444 | 702abcf9 | Michael Hanselmann | body = serializer.DumpJson(map(self._encoder, |
445 | 702abcf9 | Michael Hanselmann | zip(map(compat.snd, argdefs), args)), |
446 | cd40dc53 | Michael Hanselmann | indent=False)
|
447 | cd40dc53 | Michael Hanselmann | |
448 | f7d9b3aa | Michael Hanselmann | result = self._proc(node_list, procedure, body, read_timeout=read_timeout)
|
449 | 26d502d0 | Michael Hanselmann | |
450 | 26d502d0 | Michael Hanselmann | if postproc_fn:
|
451 | d9da5065 | Michael Hanselmann | return dict(map(lambda (key, value): (key, postproc_fn(value)), |
452 | d9da5065 | Michael Hanselmann | result.items())) |
453 | 26d502d0 | Michael Hanselmann | else:
|
454 | 26d502d0 | Michael Hanselmann | return result
|
455 | cd40dc53 | Michael Hanselmann | |
456 | cd40dc53 | Michael Hanselmann | |
457 | cd40dc53 | Michael Hanselmann | def _ObjectToDict(value): |
458 | cd40dc53 | Michael Hanselmann | """Converts an object to a dictionary.
|
459 | cd40dc53 | Michael Hanselmann |
|
460 | cd40dc53 | Michael Hanselmann | @note: See L{objects}.
|
461 | cd40dc53 | Michael Hanselmann |
|
462 | cd40dc53 | Michael Hanselmann | """
|
463 | cd40dc53 | Michael Hanselmann | return value.ToDict()
|
464 | cd40dc53 | Michael Hanselmann | |
465 | cd40dc53 | Michael Hanselmann | |
466 | cd40dc53 | Michael Hanselmann | def _ObjectListToDict(value): |
467 | cd40dc53 | Michael Hanselmann | """Converts a list of L{objects} to dictionaries.
|
468 | cd40dc53 | Michael Hanselmann |
|
469 | cd40dc53 | Michael Hanselmann | """
|
470 | cd40dc53 | Michael Hanselmann | return map(_ObjectToDict, value) |
471 | cd40dc53 | Michael Hanselmann | |
472 | cd40dc53 | Michael Hanselmann | |
473 | cd40dc53 | Michael Hanselmann | def _EncodeNodeToDiskDict(value): |
474 | cd40dc53 | Michael Hanselmann | """Encodes a dictionary with node name as key and disk objects as values.
|
475 | cd40dc53 | Michael Hanselmann |
|
476 | cd40dc53 | Michael Hanselmann | """
|
477 | cd40dc53 | Michael Hanselmann | return dict((name, _ObjectListToDict(disks)) |
478 | cd40dc53 | Michael Hanselmann | for name, disks in value.items()) |
479 | cd40dc53 | Michael Hanselmann | |
480 | cd40dc53 | Michael Hanselmann | |
481 | cd40dc53 | Michael Hanselmann | def _PrepareFileUpload(filename): |
482 | cd40dc53 | Michael Hanselmann | """Loads a file and prepares it for an upload to nodes.
|
483 | cd40dc53 | Michael Hanselmann |
|
484 | cd40dc53 | Michael Hanselmann | """
|
485 | cd40dc53 | Michael Hanselmann | data = _Compress(utils.ReadFile(filename)) |
486 | cd40dc53 | Michael Hanselmann | st = os.stat(filename) |
487 | cd40dc53 | Michael Hanselmann | getents = runtime.GetEnts() |
488 | cd40dc53 | Michael Hanselmann | return [filename, data, st.st_mode, getents.LookupUid(st.st_uid),
|
489 | cd40dc53 | Michael Hanselmann | getents.LookupGid(st.st_gid), st.st_atime, st.st_mtime] |
490 | cd40dc53 | Michael Hanselmann | |
491 | cd40dc53 | Michael Hanselmann | |
492 | cd40dc53 | Michael Hanselmann | def _PrepareFinalizeExportDisks(snap_disks): |
493 | cd40dc53 | Michael Hanselmann | """Encodes disks for finalizing export.
|
494 | cd40dc53 | Michael Hanselmann |
|
495 | cd40dc53 | Michael Hanselmann | """
|
496 | cd40dc53 | Michael Hanselmann | flat_disks = [] |
497 | cd40dc53 | Michael Hanselmann | |
498 | cd40dc53 | Michael Hanselmann | for disk in snap_disks: |
499 | cd40dc53 | Michael Hanselmann | if isinstance(disk, bool): |
500 | cd40dc53 | Michael Hanselmann | flat_disks.append(disk) |
501 | cd40dc53 | Michael Hanselmann | else:
|
502 | cd40dc53 | Michael Hanselmann | flat_disks.append(disk.ToDict()) |
503 | cd40dc53 | Michael Hanselmann | |
504 | cd40dc53 | Michael Hanselmann | return flat_disks
|
505 | cd40dc53 | Michael Hanselmann | |
506 | cd40dc53 | Michael Hanselmann | |
507 | cd40dc53 | Michael Hanselmann | def _EncodeImportExportIO((ieio, ieioargs)): |
508 | cd40dc53 | Michael Hanselmann | """Encodes import/export I/O information.
|
509 | cd40dc53 | Michael Hanselmann |
|
510 | cd40dc53 | Michael Hanselmann | """
|
511 | cd40dc53 | Michael Hanselmann | if ieio == constants.IEIO_RAW_DISK:
|
512 | cd40dc53 | Michael Hanselmann | assert len(ieioargs) == 1 |
513 | cd40dc53 | Michael Hanselmann | return (ieio, (ieioargs[0].ToDict(), )) |
514 | cd40dc53 | Michael Hanselmann | |
515 | cd40dc53 | Michael Hanselmann | if ieio == constants.IEIO_SCRIPT:
|
516 | cd40dc53 | Michael Hanselmann | assert len(ieioargs) == 2 |
517 | cd40dc53 | Michael Hanselmann | return (ieio, (ieioargs[0].ToDict(), ieioargs[1])) |
518 | cd40dc53 | Michael Hanselmann | |
519 | cd40dc53 | Michael Hanselmann | return (ieio, ieioargs)
|
520 | cd40dc53 | Michael Hanselmann | |
521 | cd40dc53 | Michael Hanselmann | |
522 | cd40dc53 | Michael Hanselmann | def _EncodeBlockdevRename(value): |
523 | cd40dc53 | Michael Hanselmann | """Encodes information for renaming block devices.
|
524 | cd40dc53 | Michael Hanselmann |
|
525 | cd40dc53 | Michael Hanselmann | """
|
526 | cd40dc53 | Michael Hanselmann | return [(d.ToDict(), uid) for d, uid in value] |
527 | cd40dc53 | Michael Hanselmann | |
528 | cd40dc53 | Michael Hanselmann | |
529 | cd40dc53 | Michael Hanselmann | #: Generic encoders
|
530 | cd40dc53 | Michael Hanselmann | _ENCODERS = { |
531 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_OBJECT_DICT: _ObjectToDict, |
532 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_OBJECT_DICT_LIST: _ObjectListToDict, |
533 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_NODE_TO_DISK_DICT: _EncodeNodeToDiskDict, |
534 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_FILE_DETAILS: _PrepareFileUpload, |
535 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_COMPRESS: _Compress, |
536 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_FINALIZE_EXPORT_DISKS: _PrepareFinalizeExportDisks, |
537 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_IMPEXP_IO: _EncodeImportExportIO, |
538 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_BLOCKDEV_RENAME: _EncodeBlockdevRename, |
539 | cd40dc53 | Michael Hanselmann | } |
540 | cd40dc53 | Michael Hanselmann | |
541 | cd40dc53 | Michael Hanselmann | |
542 | cd40dc53 | Michael Hanselmann | class RpcRunner(_RpcClientBase, |
543 | cd40dc53 | Michael Hanselmann | _generated_rpc.RpcClientDefault, |
544 | 415a7304 | Michael Hanselmann | _generated_rpc.RpcClientBootstrap, |
545 | 415a7304 | Michael Hanselmann | _generated_rpc.RpcClientConfig): |
546 | 87b3cb26 | Michael Hanselmann | """RPC runner class.
|
547 | a8083063 | Iustin Pop |
|
548 | 87b3cb26 | Michael Hanselmann | """
|
549 | 87b3cb26 | Michael Hanselmann | def __init__(self, context): |
550 | 87b3cb26 | Michael Hanselmann | """Initialized the RPC runner.
|
551 | a8083063 | Iustin Pop |
|
552 | 87b3cb26 | Michael Hanselmann | @type context: C{masterd.GanetiContext}
|
553 | 87b3cb26 | Michael Hanselmann | @param context: Ganeti context
|
554 | a8083063 | Iustin Pop |
|
555 | 72737a7f | Iustin Pop | """
|
556 | cd40dc53 | Michael Hanselmann | self._cfg = context.cfg
|
557 | cd40dc53 | Michael Hanselmann | |
558 | cd40dc53 | Michael Hanselmann | encoders = _ENCODERS.copy() |
559 | cd40dc53 | Michael Hanselmann | |
560 | cd40dc53 | Michael Hanselmann | # Add encoders requiring configuration object
|
561 | cd40dc53 | Michael Hanselmann | encoders.update({ |
562 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_INST_DICT: self._InstDict,
|
563 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_INST_DICT_HVP_BEP: self._InstDictHvpBep,
|
564 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_INST_DICT_OSP: self._InstDictOsp,
|
565 | cd40dc53 | Michael Hanselmann | }) |
566 | cd40dc53 | Michael Hanselmann | |
567 | cd40dc53 | Michael Hanselmann | # Resolver using configuration
|
568 | cd40dc53 | Michael Hanselmann | resolver = compat.partial(_NodeConfigResolver, self._cfg.GetNodeInfo,
|
569 | cd40dc53 | Michael Hanselmann | self._cfg.GetAllNodesInfo)
|
570 | cd40dc53 | Michael Hanselmann | |
571 | db04ce5d | Michael Hanselmann | # Pylint doesn't recognize multiple inheritance properly, see
|
572 | db04ce5d | Michael Hanselmann | # <http://www.logilab.org/ticket/36586> and
|
573 | db04ce5d | Michael Hanselmann | # <http://www.logilab.org/ticket/35642>
|
574 | db04ce5d | Michael Hanselmann | # pylint: disable=W0233
|
575 | cd40dc53 | Michael Hanselmann | _RpcClientBase.__init__(self, resolver, encoders.get,
|
576 | cd40dc53 | Michael Hanselmann | lock_monitor_cb=context.glm.AddToLockMonitor) |
577 | 415a7304 | Michael Hanselmann | _generated_rpc.RpcClientConfig.__init__(self)
|
578 | db04ce5d | Michael Hanselmann | _generated_rpc.RpcClientBootstrap.__init__(self)
|
579 | 200de241 | Michael Hanselmann | _generated_rpc.RpcClientDefault.__init__(self)
|
580 | 200de241 | Michael Hanselmann | |
581 | 1bdcbbab | Iustin Pop | def _InstDict(self, instance, hvp=None, bep=None, osp=None): |
582 | 26ba2bd8 | Iustin Pop | """Convert the given instance to a dict.
|
583 | 26ba2bd8 | Iustin Pop |
|
584 | 26ba2bd8 | Iustin Pop | This is done via the instance's ToDict() method and additionally
|
585 | 26ba2bd8 | Iustin Pop | we fill the hvparams with the cluster defaults.
|
586 | 26ba2bd8 | Iustin Pop |
|
587 | 26ba2bd8 | Iustin Pop | @type instance: L{objects.Instance}
|
588 | 26ba2bd8 | Iustin Pop | @param instance: an Instance object
|
589 | 0eca8e0c | Iustin Pop | @type hvp: dict or None
|
590 | 5bbd3f7f | Michael Hanselmann | @param hvp: a dictionary with overridden hypervisor parameters
|
591 | 0eca8e0c | Iustin Pop | @type bep: dict or None
|
592 | 5bbd3f7f | Michael Hanselmann | @param bep: a dictionary with overridden backend parameters
|
593 | 1bdcbbab | Iustin Pop | @type osp: dict or None
|
594 | 8d8c4eff | Michael Hanselmann | @param osp: a dictionary with overridden os parameters
|
595 | 26ba2bd8 | Iustin Pop | @rtype: dict
|
596 | 26ba2bd8 | Iustin Pop | @return: the instance dict, with the hvparams filled with the
|
597 | 26ba2bd8 | Iustin Pop | cluster defaults
|
598 | 26ba2bd8 | Iustin Pop |
|
599 | 26ba2bd8 | Iustin Pop | """
|
600 | 26ba2bd8 | Iustin Pop | idict = instance.ToDict() |
601 | 5b442704 | Iustin Pop | cluster = self._cfg.GetClusterInfo()
|
602 | 5b442704 | Iustin Pop | idict["hvparams"] = cluster.FillHV(instance)
|
603 | 0eca8e0c | Iustin Pop | if hvp is not None: |
604 | 0eca8e0c | Iustin Pop | idict["hvparams"].update(hvp)
|
605 | 5b442704 | Iustin Pop | idict["beparams"] = cluster.FillBE(instance)
|
606 | 0eca8e0c | Iustin Pop | if bep is not None: |
607 | 0eca8e0c | Iustin Pop | idict["beparams"].update(bep)
|
608 | 1bdcbbab | Iustin Pop | idict["osparams"] = cluster.SimpleFillOS(instance.os, instance.osparams)
|
609 | 1bdcbbab | Iustin Pop | if osp is not None: |
610 | 1bdcbbab | Iustin Pop | idict["osparams"].update(osp)
|
611 | b848ce79 | Guido Trotter | for nic in idict["nics"]: |
612 | b848ce79 | Guido Trotter | nic['nicparams'] = objects.FillDict(
|
613 | b848ce79 | Guido Trotter | cluster.nicparams[constants.PP_DEFAULT], |
614 | b848ce79 | Guido Trotter | nic['nicparams'])
|
615 | 26ba2bd8 | Iustin Pop | return idict
|
616 | 26ba2bd8 | Iustin Pop | |
617 | c4de9b7a | Michael Hanselmann | def _InstDictHvpBep(self, (instance, hvp, bep)): |
618 | c4de9b7a | Michael Hanselmann | """Wrapper for L{_InstDict}.
|
619 | c4de9b7a | Michael Hanselmann |
|
620 | c4de9b7a | Michael Hanselmann | """
|
621 | c4de9b7a | Michael Hanselmann | return self._InstDict(instance, hvp=hvp, bep=bep) |
622 | c4de9b7a | Michael Hanselmann | |
623 | c4de9b7a | Michael Hanselmann | def _InstDictOsp(self, (instance, osparams)): |
624 | c4de9b7a | Michael Hanselmann | """Wrapper for L{_InstDict}.
|
625 | c4de9b7a | Michael Hanselmann |
|
626 | c4de9b7a | Michael Hanselmann | """
|
627 | c4de9b7a | Michael Hanselmann | return self._InstDict(instance, osp=osparams) |
628 | c4de9b7a | Michael Hanselmann | |
629 | fb1ffbca | Michael Hanselmann | |
630 | cd40dc53 | Michael Hanselmann | class JobQueueRunner(_RpcClientBase, _generated_rpc.RpcClientJobQueue): |
631 | fb1ffbca | Michael Hanselmann | """RPC wrappers for job queue.
|
632 | fb1ffbca | Michael Hanselmann |
|
633 | fb1ffbca | Michael Hanselmann | """
|
634 | fb1ffbca | Michael Hanselmann | def __init__(self, context, address_list): |
635 | fb1ffbca | Michael Hanselmann | """Initializes this class.
|
636 | fb1ffbca | Michael Hanselmann |
|
637 | fb1ffbca | Michael Hanselmann | """
|
638 | fb1ffbca | Michael Hanselmann | if address_list is None: |
639 | fb1ffbca | Michael Hanselmann | resolver = _SsconfResolver |
640 | fb1ffbca | Michael Hanselmann | else:
|
641 | fb1ffbca | Michael Hanselmann | # Caller provided an address list
|
642 | fb1ffbca | Michael Hanselmann | resolver = _StaticResolver(address_list) |
643 | fb1ffbca | Michael Hanselmann | |
644 | cd40dc53 | Michael Hanselmann | _RpcClientBase.__init__(self, resolver, _ENCODERS.get,
|
645 | cd40dc53 | Michael Hanselmann | lock_monitor_cb=context.glm.AddToLockMonitor) |
646 | cd40dc53 | Michael Hanselmann | _generated_rpc.RpcClientJobQueue.__init__(self)
|
647 | db04ce5d | Michael Hanselmann | |
648 | db04ce5d | Michael Hanselmann | |
649 | cd40dc53 | Michael Hanselmann | class BootstrapRunner(_RpcClientBase, _generated_rpc.RpcClientBootstrap): |
650 | db04ce5d | Michael Hanselmann | """RPC wrappers for bootstrapping.
|
651 | db04ce5d | Michael Hanselmann |
|
652 | db04ce5d | Michael Hanselmann | """
|
653 | db04ce5d | Michael Hanselmann | def __init__(self): |
654 | db04ce5d | Michael Hanselmann | """Initializes this class.
|
655 | db04ce5d | Michael Hanselmann |
|
656 | db04ce5d | Michael Hanselmann | """
|
657 | cd40dc53 | Michael Hanselmann | _RpcClientBase.__init__(self, _SsconfResolver, _ENCODERS.get)
|
658 | db04ce5d | Michael Hanselmann | _generated_rpc.RpcClientBootstrap.__init__(self)
|
659 | db04ce5d | Michael Hanselmann | |
660 | 415a7304 | Michael Hanselmann | |
661 | cd40dc53 | Michael Hanselmann | class ConfigRunner(_RpcClientBase, _generated_rpc.RpcClientConfig): |
662 | 415a7304 | Michael Hanselmann | """RPC wrappers for L{config}.
|
663 | 415a7304 | Michael Hanselmann |
|
664 | 415a7304 | Michael Hanselmann | """
|
665 | b2acdbdc | Michael Hanselmann | def __init__(self, context, address_list): |
666 | 415a7304 | Michael Hanselmann | """Initializes this class.
|
667 | 415a7304 | Michael Hanselmann |
|
668 | 415a7304 | Michael Hanselmann | """
|
669 | b2acdbdc | Michael Hanselmann | if context:
|
670 | b2acdbdc | Michael Hanselmann | lock_monitor_cb = context.glm.AddToLockMonitor |
671 | b2acdbdc | Michael Hanselmann | else:
|
672 | b2acdbdc | Michael Hanselmann | lock_monitor_cb = None
|
673 | b2acdbdc | Michael Hanselmann | |
674 | 415a7304 | Michael Hanselmann | if address_list is None: |
675 | 415a7304 | Michael Hanselmann | resolver = _SsconfResolver |
676 | 415a7304 | Michael Hanselmann | else:
|
677 | 415a7304 | Michael Hanselmann | # Caller provided an address list
|
678 | 415a7304 | Michael Hanselmann | resolver = _StaticResolver(address_list) |
679 | 415a7304 | Michael Hanselmann | |
680 | b2acdbdc | Michael Hanselmann | _RpcClientBase.__init__(self, resolver, _ENCODERS.get,
|
681 | b2acdbdc | Michael Hanselmann | lock_monitor_cb=lock_monitor_cb) |
682 | cd40dc53 | Michael Hanselmann | _generated_rpc.RpcClientConfig.__init__(self) |