root / lib / rpc.py @ 3a6a89d7
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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 | 58b311ca | Iustin Pop | import logging |
34 | 12bce260 | Michael Hanselmann | import zlib |
35 | 12bce260 | Michael Hanselmann | import base64 |
36 | 33231500 | Michael Hanselmann | import pycurl |
37 | 33231500 | Michael Hanselmann | import threading |
38 | a8083063 | Iustin Pop | |
39 | a8083063 | Iustin Pop | from ganeti import utils |
40 | a8083063 | Iustin Pop | from ganeti import objects |
41 | ecfe9491 | Michael Hanselmann | from ganeti import http |
42 | 7c28c575 | Michael Hanselmann | from ganeti import serializer |
43 | eafd8762 | Michael Hanselmann | from ganeti import constants |
44 | 781de953 | Iustin Pop | from ganeti import errors |
45 | a744b676 | Manuel Franceschini | from ganeti import netutils |
46 | eb202c13 | Manuel Franceschini | from ganeti import ssconf |
47 | 9a914f7a | René Nussbaumer | from ganeti import runtime |
48 | 00267bfe | Michael Hanselmann | from ganeti import compat |
49 | cd40dc53 | Michael Hanselmann | from ganeti import rpc_defs |
50 | 80ec9f96 | Michael Hanselmann | from ganeti import pathutils |
51 | cffbbae7 | Michael Hanselmann | from ganeti import vcluster |
52 | a8083063 | Iustin Pop | |
53 | 200de241 | Michael Hanselmann | # Special module generated at build time
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54 | 200de241 | Michael Hanselmann | from ganeti import _generated_rpc |
55 | 200de241 | Michael Hanselmann | |
56 | fe267188 | Iustin Pop | # pylint has a bug here, doesn't see this import
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57 | b459a848 | Andrea Spadaccini | import ganeti.http.client # pylint: disable=W0611 |
58 | ae88ef45 | Michael Hanselmann | |
59 | a8083063 | Iustin Pop | |
60 | 33231500 | Michael Hanselmann | _RPC_CLIENT_HEADERS = [ |
61 | 33231500 | Michael Hanselmann | "Content-type: %s" % http.HTTP_APP_JSON,
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62 | 8e29563f | Iustin Pop | "Expect:",
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63 | 33231500 | Michael Hanselmann | ] |
64 | 4331f6cd | Michael Hanselmann | |
65 | 00267bfe | Michael Hanselmann | #: Special value to describe an offline host
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66 | 00267bfe | Michael Hanselmann | _OFFLINE = object()
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67 | 00267bfe | Michael Hanselmann | |
68 | 4331f6cd | Michael Hanselmann | |
69 | 4331f6cd | Michael Hanselmann | def Init(): |
70 | 4331f6cd | Michael Hanselmann | """Initializes the module-global HTTP client manager.
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71 | 4331f6cd | Michael Hanselmann |
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72 | 33231500 | Michael Hanselmann | Must be called before using any RPC function and while exactly one thread is
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73 | 33231500 | Michael Hanselmann | running.
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74 | 4331f6cd | Michael Hanselmann |
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75 | 4331f6cd | Michael Hanselmann | """
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76 | 33231500 | Michael Hanselmann | # curl_global_init(3) and curl_global_cleanup(3) must be called with only
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77 | 33231500 | Michael Hanselmann | # one thread running. This check is just a safety measure -- it doesn't
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78 | 33231500 | Michael Hanselmann | # cover all cases.
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79 | 33231500 | Michael Hanselmann | assert threading.activeCount() == 1, \ |
80 | 33231500 | Michael Hanselmann | "Found more than one active thread when initializing pycURL"
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81 | 4331f6cd | Michael Hanselmann | |
82 | 33231500 | Michael Hanselmann | logging.info("Using PycURL %s", pycurl.version)
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83 | 8d0a4f99 | Michael Hanselmann | |
84 | 33231500 | Michael Hanselmann | pycurl.global_init(pycurl.GLOBAL_ALL) |
85 | 4331f6cd | Michael Hanselmann | |
86 | 4331f6cd | Michael Hanselmann | |
87 | 4331f6cd | Michael Hanselmann | def Shutdown(): |
88 | 4331f6cd | Michael Hanselmann | """Stops the module-global HTTP client manager.
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89 | 4331f6cd | Michael Hanselmann |
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90 | 33231500 | Michael Hanselmann | Must be called before quitting the program and while exactly one thread is
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91 | 33231500 | Michael Hanselmann | running.
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92 | 4331f6cd | Michael Hanselmann |
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93 | 4331f6cd | Michael Hanselmann | """
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94 | 33231500 | Michael Hanselmann | pycurl.global_cleanup() |
95 | 33231500 | Michael Hanselmann | |
96 | 33231500 | Michael Hanselmann | |
97 | 33231500 | Michael Hanselmann | def _ConfigRpcCurl(curl): |
98 | 80ec9f96 | Michael Hanselmann | noded_cert = str(pathutils.NODED_CERT_FILE)
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99 | 4331f6cd | Michael Hanselmann | |
100 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.FOLLOWLOCATION, False)
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101 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.CAINFO, noded_cert) |
102 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.SSL_VERIFYHOST, 0)
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103 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.SSL_VERIFYPEER, True)
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104 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.SSLCERTTYPE, "PEM")
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105 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.SSLCERT, noded_cert) |
106 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.SSLKEYTYPE, "PEM")
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107 | 33231500 | Michael Hanselmann | curl.setopt(pycurl.SSLKEY, noded_cert) |
108 | 2ff587d4 | Agata Murawska | curl.setopt(pycurl.CONNECTTIMEOUT, constants.RPC_CONNECT_TIMEOUT) |
109 | 33231500 | Michael Hanselmann | |
110 | 33231500 | Michael Hanselmann | |
111 | e0e916fe | Iustin Pop | def RunWithRPC(fn): |
112 | e0e916fe | Iustin Pop | """RPC-wrapper decorator.
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113 | e0e916fe | Iustin Pop |
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114 | e0e916fe | Iustin Pop | When applied to a function, it runs it with the RPC system
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115 | e0e916fe | Iustin Pop | initialized, and it shutsdown the system afterwards. This means the
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116 | e0e916fe | Iustin Pop | function must be called without RPC being initialized.
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117 | e0e916fe | Iustin Pop |
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118 | e0e916fe | Iustin Pop | """
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119 | e0e916fe | Iustin Pop | def wrapper(*args, **kwargs): |
120 | e0e916fe | Iustin Pop | Init() |
121 | e0e916fe | Iustin Pop | try:
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122 | e0e916fe | Iustin Pop | return fn(*args, **kwargs)
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123 | e0e916fe | Iustin Pop | finally:
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124 | e0e916fe | Iustin Pop | Shutdown() |
125 | e0e916fe | Iustin Pop | return wrapper
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126 | e0e916fe | Iustin Pop | |
127 | e0e916fe | Iustin Pop | |
128 | 30474135 | Michael Hanselmann | def _Compress(data): |
129 | 30474135 | Michael Hanselmann | """Compresses a string for transport over RPC.
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130 | 30474135 | Michael Hanselmann |
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131 | 30474135 | Michael Hanselmann | Small amounts of data are not compressed.
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132 | 30474135 | Michael Hanselmann |
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133 | 30474135 | Michael Hanselmann | @type data: str
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134 | 30474135 | Michael Hanselmann | @param data: Data
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135 | 30474135 | Michael Hanselmann | @rtype: tuple
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136 | 30474135 | Michael Hanselmann | @return: Encoded data to send
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137 | 30474135 | Michael Hanselmann |
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138 | 30474135 | Michael Hanselmann | """
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139 | 30474135 | Michael Hanselmann | # Small amounts of data are not compressed
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140 | 30474135 | Michael Hanselmann | if len(data) < 512: |
141 | 30474135 | Michael Hanselmann | return (constants.RPC_ENCODING_NONE, data)
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142 | 30474135 | Michael Hanselmann | |
143 | 30474135 | Michael Hanselmann | # Compress with zlib and encode in base64
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144 | 30474135 | Michael Hanselmann | return (constants.RPC_ENCODING_ZLIB_BASE64,
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145 | 30474135 | Michael Hanselmann | base64.b64encode(zlib.compress(data, 3)))
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146 | 30474135 | Michael Hanselmann | |
147 | 30474135 | Michael Hanselmann | |
148 | 781de953 | Iustin Pop | class RpcResult(object): |
149 | 781de953 | Iustin Pop | """RPC Result class.
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150 | 781de953 | Iustin Pop |
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151 | 781de953 | Iustin Pop | This class holds an RPC result. It is needed since in multi-node
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152 | 781de953 | Iustin Pop | calls we can't raise an exception just because one one out of many
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153 | 781de953 | Iustin Pop | failed, and therefore we use this class to encapsulate the result.
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154 | 781de953 | Iustin Pop |
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155 | 5bbd3f7f | Michael Hanselmann | @ivar data: the data payload, for successful results, or None
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156 | ed83f5cc | Iustin Pop | @ivar call: the name of the RPC call
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157 | ed83f5cc | Iustin Pop | @ivar node: the name of the node to which we made the call
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158 | ed83f5cc | Iustin Pop | @ivar offline: whether the operation failed because the node was
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159 | ed83f5cc | Iustin Pop | offline, as opposed to actual failure; offline=True will always
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160 | ed83f5cc | Iustin Pop | imply failed=True, in order to allow simpler checking if
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161 | ed83f5cc | Iustin Pop | the user doesn't care about the exact failure mode
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162 | 4c4e4e1e | Iustin Pop | @ivar fail_msg: the error message if the call failed
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163 | ed83f5cc | Iustin Pop |
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164 | 781de953 | Iustin Pop | """
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165 | ed83f5cc | Iustin Pop | def __init__(self, data=None, failed=False, offline=False, |
166 | ed83f5cc | Iustin Pop | call=None, node=None): |
167 | ed83f5cc | Iustin Pop | self.offline = offline
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168 | ed83f5cc | Iustin Pop | self.call = call
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169 | ed83f5cc | Iustin Pop | self.node = node
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170 | 1645d22d | Michael Hanselmann | |
171 | ed83f5cc | Iustin Pop | if offline:
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172 | 4c4e4e1e | Iustin Pop | self.fail_msg = "Node is marked offline" |
173 | f2def43a | Iustin Pop | self.data = self.payload = None |
174 | ed83f5cc | Iustin Pop | elif failed:
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175 | 4c4e4e1e | Iustin Pop | self.fail_msg = self._EnsureErr(data) |
176 | f2def43a | Iustin Pop | self.data = self.payload = None |
177 | 781de953 | Iustin Pop | else:
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178 | 781de953 | Iustin Pop | self.data = data
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179 | d3c8b360 | Iustin Pop | if not isinstance(self.data, (tuple, list)): |
180 | 4c4e4e1e | Iustin Pop | self.fail_msg = ("RPC layer error: invalid result type (%s)" % |
181 | 4c4e4e1e | Iustin Pop | type(self.data)) |
182 | 1645d22d | Michael Hanselmann | self.payload = None |
183 | d3c8b360 | Iustin Pop | elif len(data) != 2: |
184 | 4c4e4e1e | Iustin Pop | self.fail_msg = ("RPC layer error: invalid result length (%d), " |
185 | 4c4e4e1e | Iustin Pop | "expected 2" % len(self.data)) |
186 | 1645d22d | Michael Hanselmann | self.payload = None |
187 | d3c8b360 | Iustin Pop | elif not self.data[0]: |
188 | 4c4e4e1e | Iustin Pop | self.fail_msg = self._EnsureErr(self.data[1]) |
189 | 1645d22d | Michael Hanselmann | self.payload = None |
190 | f2def43a | Iustin Pop | else:
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191 | d3c8b360 | Iustin Pop | # finally success
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192 | 4c4e4e1e | Iustin Pop | self.fail_msg = None |
193 | d3c8b360 | Iustin Pop | self.payload = data[1] |
194 | d3c8b360 | Iustin Pop | |
195 | 2c0f74f2 | Iustin Pop | for attr_name in ["call", "data", "fail_msg", |
196 | 2c0f74f2 | Iustin Pop | "node", "offline", "payload"]: |
197 | 2c0f74f2 | Iustin Pop | assert hasattr(self, attr_name), "Missing attribute %s" % attr_name |
198 | 1645d22d | Michael Hanselmann | |
199 | d3c8b360 | Iustin Pop | @staticmethod
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200 | d3c8b360 | Iustin Pop | def _EnsureErr(val): |
201 | d3c8b360 | Iustin Pop | """Helper to ensure we return a 'True' value for error."""
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202 | d3c8b360 | Iustin Pop | if val:
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203 | d3c8b360 | Iustin Pop | return val
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204 | d3c8b360 | Iustin Pop | else:
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205 | d3c8b360 | Iustin Pop | return "No error information" |
206 | 781de953 | Iustin Pop | |
207 | 045dd6d9 | Iustin Pop | def Raise(self, msg, prereq=False, ecode=None): |
208 | 781de953 | Iustin Pop | """If the result has failed, raise an OpExecError.
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209 | 781de953 | Iustin Pop |
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210 | 781de953 | Iustin Pop | This is used so that LU code doesn't have to check for each
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211 | 781de953 | Iustin Pop | result, but instead can call this function.
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212 | 781de953 | Iustin Pop |
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213 | 781de953 | Iustin Pop | """
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214 | 4c4e4e1e | Iustin Pop | if not self.fail_msg: |
215 | 4c4e4e1e | Iustin Pop | return
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216 | 4c4e4e1e | Iustin Pop | |
217 | 4c4e4e1e | Iustin Pop | if not msg: # one could pass None for default message |
218 | 4c4e4e1e | Iustin Pop | msg = ("Call '%s' to node '%s' has failed: %s" %
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219 | 4c4e4e1e | Iustin Pop | (self.call, self.node, self.fail_msg)) |
220 | 4c4e4e1e | Iustin Pop | else:
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221 | 4c4e4e1e | Iustin Pop | msg = "%s: %s" % (msg, self.fail_msg) |
222 | 4c4e4e1e | Iustin Pop | if prereq:
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223 | 4c4e4e1e | Iustin Pop | ec = errors.OpPrereqError |
224 | 4c4e4e1e | Iustin Pop | else:
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225 | 4c4e4e1e | Iustin Pop | ec = errors.OpExecError |
226 | 045dd6d9 | Iustin Pop | if ecode is not None: |
227 | 27137e55 | Iustin Pop | args = (msg, ecode) |
228 | 045dd6d9 | Iustin Pop | else:
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229 | 045dd6d9 | Iustin Pop | args = (msg, ) |
230 | b459a848 | Andrea Spadaccini | raise ec(*args) # pylint: disable=W0142 |
231 | 781de953 | Iustin Pop | |
232 | 781de953 | Iustin Pop | |
233 | bd6d1202 | René Nussbaumer | def _SsconfResolver(ssconf_ips, node_list, _, |
234 | 00267bfe | Michael Hanselmann | ssc=ssconf.SimpleStore, |
235 | 00267bfe | Michael Hanselmann | nslookup_fn=netutils.Hostname.GetIP): |
236 | eb202c13 | Manuel Franceschini | """Return addresses for given node names.
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237 | eb202c13 | Manuel Franceschini |
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238 | bd6d1202 | René Nussbaumer | @type ssconf_ips: bool
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239 | bd6d1202 | René Nussbaumer | @param ssconf_ips: Use the ssconf IPs
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240 | eb202c13 | Manuel Franceschini | @type node_list: list
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241 | eb202c13 | Manuel Franceschini | @param node_list: List of node names
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242 | eb202c13 | Manuel Franceschini | @type ssc: class
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243 | eb202c13 | Manuel Franceschini | @param ssc: SimpleStore class that is used to obtain node->ip mappings
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244 | 17f7fd27 | Manuel Franceschini | @type nslookup_fn: callable
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245 | 17f7fd27 | Manuel Franceschini | @param nslookup_fn: function use to do NS lookup
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246 | 00267bfe | Michael Hanselmann | @rtype: list of tuple; (string, string)
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247 | 00267bfe | Michael Hanselmann | @return: List of tuples containing node name and IP address
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248 | eb202c13 | Manuel Franceschini |
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249 | eb202c13 | Manuel Franceschini | """
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250 | b43dcc5a | Manuel Franceschini | ss = ssc() |
251 | b43dcc5a | Manuel Franceschini | family = ss.GetPrimaryIPFamily() |
252 | bd6d1202 | René Nussbaumer | |
253 | bd6d1202 | René Nussbaumer | if ssconf_ips:
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254 | bd6d1202 | René Nussbaumer | iplist = ss.GetNodePrimaryIPList() |
255 | bd6d1202 | René Nussbaumer | ipmap = dict(entry.split() for entry in iplist) |
256 | bd6d1202 | René Nussbaumer | else:
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257 | bd6d1202 | René Nussbaumer | ipmap = {} |
258 | 00267bfe | Michael Hanselmann | |
259 | 00267bfe | Michael Hanselmann | result = [] |
260 | b705c7a6 | Manuel Franceschini | for node in node_list: |
261 | 00267bfe | Michael Hanselmann | ip = ipmap.get(node) |
262 | 00267bfe | Michael Hanselmann | if ip is None: |
263 | 00267bfe | Michael Hanselmann | ip = nslookup_fn(node, family=family) |
264 | 00267bfe | Michael Hanselmann | result.append((node, ip)) |
265 | 00267bfe | Michael Hanselmann | |
266 | 00267bfe | Michael Hanselmann | return result
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267 | 00267bfe | Michael Hanselmann | |
268 | 00267bfe | Michael Hanselmann | |
269 | 00267bfe | Michael Hanselmann | class _StaticResolver: |
270 | 00267bfe | Michael Hanselmann | def __init__(self, addresses): |
271 | 00267bfe | Michael Hanselmann | """Initializes this class.
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272 | 00267bfe | Michael Hanselmann |
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273 | 00267bfe | Michael Hanselmann | """
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274 | 00267bfe | Michael Hanselmann | self._addresses = addresses
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275 | 00267bfe | Michael Hanselmann | |
276 | fce5efd1 | Michael Hanselmann | def __call__(self, hosts, _): |
277 | 00267bfe | Michael Hanselmann | """Returns static addresses for hosts.
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278 | 00267bfe | Michael Hanselmann |
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279 | 00267bfe | Michael Hanselmann | """
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280 | 00267bfe | Michael Hanselmann | assert len(hosts) == len(self._addresses) |
281 | 00267bfe | Michael Hanselmann | return zip(hosts, self._addresses) |
282 | 00267bfe | Michael Hanselmann | |
283 | eb202c13 | Manuel Franceschini | |
284 | 890ea4ce | Michael Hanselmann | def _CheckConfigNode(name, node, accept_offline_node): |
285 | 00267bfe | Michael Hanselmann | """Checks if a node is online.
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286 | eb202c13 | Manuel Franceschini |
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287 | 00267bfe | Michael Hanselmann | @type name: string
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288 | 00267bfe | Michael Hanselmann | @param name: Node name
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289 | 00267bfe | Michael Hanselmann | @type node: L{objects.Node} or None
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290 | 00267bfe | Michael Hanselmann | @param node: Node object
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291 | eb202c13 | Manuel Franceschini |
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292 | 00267bfe | Michael Hanselmann | """
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293 | 00267bfe | Michael Hanselmann | if node is None: |
294 | 00267bfe | Michael Hanselmann | # Depend on DNS for name resolution
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295 | 00267bfe | Michael Hanselmann | ip = name |
296 | 890ea4ce | Michael Hanselmann | elif node.offline and not accept_offline_node: |
297 | 00267bfe | Michael Hanselmann | ip = _OFFLINE |
298 | 00267bfe | Michael Hanselmann | else:
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299 | 00267bfe | Michael Hanselmann | ip = node.primary_ip |
300 | 00267bfe | Michael Hanselmann | return (name, ip)
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301 | a8083063 | Iustin Pop | |
302 | a8083063 | Iustin Pop | |
303 | 890ea4ce | Michael Hanselmann | def _NodeConfigResolver(single_node_fn, all_nodes_fn, hosts, opts): |
304 | 00267bfe | Michael Hanselmann | """Calculate node addresses using configuration.
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305 | a8083063 | Iustin Pop |
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306 | a8083063 | Iustin Pop | """
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307 | 890ea4ce | Michael Hanselmann | accept_offline_node = (opts is rpc_defs.ACCEPT_OFFLINE_NODE)
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308 | 890ea4ce | Michael Hanselmann | |
309 | 890ea4ce | Michael Hanselmann | assert accept_offline_node or opts is None, "Unknown option" |
310 | 890ea4ce | Michael Hanselmann | |
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 | 890ea4ce | Michael Hanselmann | return [_CheckConfigNode(name, single_node_fn(name), accept_offline_node)]
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315 | 00267bfe | Michael Hanselmann | else:
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316 | 00267bfe | Michael Hanselmann | all_nodes = all_nodes_fn() |
317 | 890ea4ce | Michael Hanselmann | return [_CheckConfigNode(name, all_nodes.get(name, None), |
318 | 890ea4ce | Michael Hanselmann | accept_offline_node) |
319 | 00267bfe | Michael Hanselmann | for name in hosts] |
320 | 00267bfe | Michael Hanselmann | |
321 | 00267bfe | Michael Hanselmann | |
322 | 00267bfe | Michael Hanselmann | class _RpcProcessor: |
323 | aea5caef | Michael Hanselmann | def __init__(self, resolver, port, lock_monitor_cb=None): |
324 | 00267bfe | Michael Hanselmann | """Initializes this class.
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325 | 00267bfe | Michael Hanselmann |
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326 | 00267bfe | Michael Hanselmann | @param resolver: callable accepting a list of hostnames, returning a list
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327 | 00267bfe | Michael Hanselmann | of tuples containing name and IP address (IP address can be the name or
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328 | 00267bfe | Michael Hanselmann | the special value L{_OFFLINE} to mark offline machines)
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329 | 00267bfe | Michael Hanselmann | @type port: int
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330 | 00267bfe | Michael Hanselmann | @param port: TCP port
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331 | aea5caef | Michael Hanselmann | @param lock_monitor_cb: Callable for registering with lock monitor
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332 | 3ef3c771 | Iustin Pop |
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333 | a8083063 | Iustin Pop | """
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334 | 00267bfe | Michael Hanselmann | self._resolver = resolver
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335 | 00267bfe | Michael Hanselmann | self._port = port
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336 | aea5caef | Michael Hanselmann | self._lock_monitor_cb = lock_monitor_cb
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337 | eb202c13 | Manuel Franceschini | |
338 | 00267bfe | Michael Hanselmann | @staticmethod
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339 | 00267bfe | Michael Hanselmann | def _PrepareRequests(hosts, port, procedure, body, read_timeout): |
340 | 00267bfe | Michael Hanselmann | """Prepares requests by sorting offline hosts into separate list.
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341 | eb202c13 | Manuel Franceschini |
|
342 | d9de612c | Iustin Pop | @type body: dict
|
343 | d9de612c | Iustin Pop | @param body: a dictionary with per-host body data
|
344 | d9de612c | Iustin Pop |
|
345 | 00267bfe | Michael Hanselmann | """
|
346 | 00267bfe | Michael Hanselmann | results = {} |
347 | 00267bfe | Michael Hanselmann | requests = {} |
348 | bdf7d8c0 | Iustin Pop | |
349 | d9de612c | Iustin Pop | assert isinstance(body, dict) |
350 | d9de612c | Iustin Pop | assert len(body) == len(hosts) |
351 | d9de612c | Iustin Pop | assert compat.all(isinstance(v, str) for v in body.values()) |
352 | d9de612c | Iustin Pop | assert frozenset(map(compat.fst, hosts)) == frozenset(body.keys()), \ |
353 | d9de612c | Iustin Pop | "%s != %s" % (hosts, body.keys())
|
354 | d9de612c | Iustin Pop | |
355 | 00267bfe | Michael Hanselmann | for (name, ip) in hosts: |
356 | 00267bfe | Michael Hanselmann | if ip is _OFFLINE: |
357 | 00267bfe | Michael Hanselmann | # Node is marked as offline
|
358 | 00267bfe | Michael Hanselmann | results[name] = RpcResult(node=name, offline=True, call=procedure)
|
359 | 00267bfe | Michael Hanselmann | else:
|
360 | 00267bfe | Michael Hanselmann | requests[name] = \ |
361 | 00267bfe | Michael Hanselmann | http.client.HttpClientRequest(str(ip), port,
|
362 | 7530364d | Iustin Pop | http.HTTP_POST, str("/%s" % procedure), |
363 | 00267bfe | Michael Hanselmann | headers=_RPC_CLIENT_HEADERS, |
364 | d9de612c | Iustin Pop | post_data=body[name], |
365 | 7cb2d205 | Michael Hanselmann | read_timeout=read_timeout, |
366 | abbf2cd9 | Michael Hanselmann | nicename="%s/%s" % (name, procedure),
|
367 | abbf2cd9 | Michael Hanselmann | curl_config_fn=_ConfigRpcCurl) |
368 | a8083063 | Iustin Pop | |
369 | 00267bfe | Michael Hanselmann | return (results, requests)
|
370 | 00267bfe | Michael Hanselmann | |
371 | 00267bfe | Michael Hanselmann | @staticmethod
|
372 | 00267bfe | Michael Hanselmann | def _CombineResults(results, requests, procedure): |
373 | 00267bfe | Michael Hanselmann | """Combines pre-computed results for offline hosts with actual call results.
|
374 | bdf7d8c0 | Iustin Pop |
|
375 | a8083063 | Iustin Pop | """
|
376 | 00267bfe | Michael Hanselmann | for name, req in requests.items(): |
377 | 00267bfe | Michael Hanselmann | if req.success and req.resp_status_code == http.HTTP_OK: |
378 | 00267bfe | Michael Hanselmann | host_result = RpcResult(data=serializer.LoadJson(req.resp_body), |
379 | 00267bfe | Michael Hanselmann | node=name, call=procedure) |
380 | 00267bfe | Michael Hanselmann | else:
|
381 | 00267bfe | Michael Hanselmann | # TODO: Better error reporting
|
382 | 00267bfe | Michael Hanselmann | if req.error:
|
383 | 00267bfe | Michael Hanselmann | msg = req.error |
384 | 00267bfe | Michael Hanselmann | else:
|
385 | 00267bfe | Michael Hanselmann | msg = req.resp_body |
386 | eb202c13 | Manuel Franceschini | |
387 | 00267bfe | Michael Hanselmann | logging.error("RPC error in %s on node %s: %s", procedure, name, msg)
|
388 | 00267bfe | Michael Hanselmann | host_result = RpcResult(data=msg, failed=True, node=name,
|
389 | 00267bfe | Michael Hanselmann | call=procedure) |
390 | ecfe9491 | Michael Hanselmann | |
391 | 00267bfe | Michael Hanselmann | results[name] = host_result |
392 | 92fd2250 | Iustin Pop | |
393 | 00267bfe | Michael Hanselmann | return results
|
394 | a8083063 | Iustin Pop | |
395 | fce5efd1 | Michael Hanselmann | def __call__(self, hosts, procedure, body, read_timeout, resolver_opts, |
396 | 065be3f0 | Michael Hanselmann | _req_process_fn=None):
|
397 | 00267bfe | Michael Hanselmann | """Makes an RPC request to a number of nodes.
|
398 | ecfe9491 | Michael Hanselmann |
|
399 | 00267bfe | Michael Hanselmann | @type hosts: sequence
|
400 | 00267bfe | Michael Hanselmann | @param hosts: Hostnames
|
401 | 00267bfe | Michael Hanselmann | @type procedure: string
|
402 | 00267bfe | Michael Hanselmann | @param procedure: Request path
|
403 | d9de612c | Iustin Pop | @type body: dictionary
|
404 | d9de612c | Iustin Pop | @param body: dictionary with request bodies per host
|
405 | 00267bfe | Michael Hanselmann | @type read_timeout: int or None
|
406 | 00267bfe | Michael Hanselmann | @param read_timeout: Read timeout for request
|
407 | a8083063 | Iustin Pop |
|
408 | a8083063 | Iustin Pop | """
|
409 | 83e7af18 | Michael Hanselmann | assert read_timeout is not None, \ |
410 | 83e7af18 | Michael Hanselmann | "Missing RPC read timeout for procedure '%s'" % procedure
|
411 | a8083063 | Iustin Pop | |
412 | 065be3f0 | Michael Hanselmann | if _req_process_fn is None: |
413 | 065be3f0 | Michael Hanselmann | _req_process_fn = http.client.ProcessRequests |
414 | 065be3f0 | Michael Hanselmann | |
415 | 00267bfe | Michael Hanselmann | (results, requests) = \ |
416 | fce5efd1 | Michael Hanselmann | self._PrepareRequests(self._resolver(hosts, resolver_opts), self._port, |
417 | fce5efd1 | Michael Hanselmann | procedure, body, read_timeout) |
418 | a8083063 | Iustin Pop | |
419 | abbf2cd9 | Michael Hanselmann | _req_process_fn(requests.values(), lock_monitor_cb=self._lock_monitor_cb)
|
420 | a8083063 | Iustin Pop | |
421 | 00267bfe | Michael Hanselmann | assert not frozenset(results).intersection(requests) |
422 | ecfe9491 | Michael Hanselmann | |
423 | 00267bfe | Michael Hanselmann | return self._CombineResults(results, requests, procedure) |
424 | a8083063 | Iustin Pop | |
425 | a8083063 | Iustin Pop | |
426 | cd40dc53 | Michael Hanselmann | class _RpcClientBase: |
427 | 065be3f0 | Michael Hanselmann | def __init__(self, resolver, encoder_fn, lock_monitor_cb=None, |
428 | 065be3f0 | Michael Hanselmann | _req_process_fn=None):
|
429 | cd40dc53 | Michael Hanselmann | """Initializes this class.
|
430 | cd40dc53 | Michael Hanselmann |
|
431 | cd40dc53 | Michael Hanselmann | """
|
432 | 065be3f0 | Michael Hanselmann | proc = _RpcProcessor(resolver, |
433 | 065be3f0 | Michael Hanselmann | netutils.GetDaemonPort(constants.NODED), |
434 | 065be3f0 | Michael Hanselmann | lock_monitor_cb=lock_monitor_cb) |
435 | 065be3f0 | Michael Hanselmann | self._proc = compat.partial(proc, _req_process_fn=_req_process_fn)
|
436 | cd40dc53 | Michael Hanselmann | self._encoder = compat.partial(self._EncodeArg, encoder_fn) |
437 | cd40dc53 | Michael Hanselmann | |
438 | cd40dc53 | Michael Hanselmann | @staticmethod
|
439 | cd40dc53 | Michael Hanselmann | def _EncodeArg(encoder_fn, (argkind, value)): |
440 | cd40dc53 | Michael Hanselmann | """Encode argument.
|
441 | cd40dc53 | Michael Hanselmann |
|
442 | cd40dc53 | Michael Hanselmann | """
|
443 | cd40dc53 | Michael Hanselmann | if argkind is None: |
444 | cd40dc53 | Michael Hanselmann | return value
|
445 | cd40dc53 | Michael Hanselmann | else:
|
446 | cd40dc53 | Michael Hanselmann | return encoder_fn(argkind)(value)
|
447 | cd40dc53 | Michael Hanselmann | |
448 | f7d9b3aa | Michael Hanselmann | def _Call(self, cdef, node_list, args): |
449 | cd40dc53 | Michael Hanselmann | """Entry point for automatically generated RPC wrappers.
|
450 | cd40dc53 | Michael Hanselmann |
|
451 | cd40dc53 | Michael Hanselmann | """
|
452 | dd6d2d09 | Michael Hanselmann | (procedure, _, resolver_opts, timeout, argdefs, |
453 | dd6d2d09 | Michael Hanselmann | prep_fn, postproc_fn, _) = cdef |
454 | f7d9b3aa | Michael Hanselmann | |
455 | f7d9b3aa | Michael Hanselmann | if callable(timeout): |
456 | f7d9b3aa | Michael Hanselmann | read_timeout = timeout(args) |
457 | f7d9b3aa | Michael Hanselmann | else:
|
458 | f7d9b3aa | Michael Hanselmann | read_timeout = timeout |
459 | cd40dc53 | Michael Hanselmann | |
460 | dd6d2d09 | Michael Hanselmann | if callable(resolver_opts): |
461 | dd6d2d09 | Michael Hanselmann | req_resolver_opts = resolver_opts(args) |
462 | dd6d2d09 | Michael Hanselmann | else:
|
463 | dd6d2d09 | Michael Hanselmann | req_resolver_opts = resolver_opts |
464 | dd6d2d09 | Michael Hanselmann | |
465 | e78667fe | Michael Hanselmann | if len(args) != len(argdefs): |
466 | e78667fe | Michael Hanselmann | raise errors.ProgrammerError("Number of passed arguments doesn't match") |
467 | e78667fe | Michael Hanselmann | |
468 | d9de612c | Iustin Pop | enc_args = map(self._encoder, zip(map(compat.snd, argdefs), args)) |
469 | d9de612c | Iustin Pop | if prep_fn is None: |
470 | d9de612c | Iustin Pop | # for a no-op prep_fn, we serialise the body once, and then we
|
471 | d9de612c | Iustin Pop | # reuse it in the dictionary values
|
472 | d9de612c | Iustin Pop | body = serializer.DumpJson(enc_args) |
473 | d9de612c | Iustin Pop | pnbody = dict((n, body) for n in node_list) |
474 | d9de612c | Iustin Pop | else:
|
475 | d9de612c | Iustin Pop | # for a custom prep_fn, we pass the encoded arguments and the
|
476 | d9de612c | Iustin Pop | # node name to the prep_fn, and we serialise its return value
|
477 | 764ff2eb | Michael Hanselmann | assert callable(prep_fn) |
478 | d9de612c | Iustin Pop | pnbody = dict((n, serializer.DumpJson(prep_fn(n, enc_args)))
|
479 | d9de612c | Iustin Pop | for n in node_list) |
480 | d9de612c | Iustin Pop | |
481 | fce5efd1 | Michael Hanselmann | result = self._proc(node_list, procedure, pnbody, read_timeout,
|
482 | fce5efd1 | Michael Hanselmann | req_resolver_opts) |
483 | 26d502d0 | Michael Hanselmann | |
484 | 26d502d0 | Michael Hanselmann | if postproc_fn:
|
485 | d9da5065 | Michael Hanselmann | return dict(map(lambda (key, value): (key, postproc_fn(value)), |
486 | d9da5065 | Michael Hanselmann | result.items())) |
487 | 26d502d0 | Michael Hanselmann | else:
|
488 | 26d502d0 | Michael Hanselmann | return result
|
489 | cd40dc53 | Michael Hanselmann | |
490 | cd40dc53 | Michael Hanselmann | |
491 | cd40dc53 | Michael Hanselmann | def _ObjectToDict(value): |
492 | cd40dc53 | Michael Hanselmann | """Converts an object to a dictionary.
|
493 | cd40dc53 | Michael Hanselmann |
|
494 | cd40dc53 | Michael Hanselmann | @note: See L{objects}.
|
495 | cd40dc53 | Michael Hanselmann |
|
496 | cd40dc53 | Michael Hanselmann | """
|
497 | cd40dc53 | Michael Hanselmann | return value.ToDict()
|
498 | cd40dc53 | Michael Hanselmann | |
499 | cd40dc53 | Michael Hanselmann | |
500 | cd40dc53 | Michael Hanselmann | def _ObjectListToDict(value): |
501 | cd40dc53 | Michael Hanselmann | """Converts a list of L{objects} to dictionaries.
|
502 | cd40dc53 | Michael Hanselmann |
|
503 | cd40dc53 | Michael Hanselmann | """
|
504 | cd40dc53 | Michael Hanselmann | return map(_ObjectToDict, value) |
505 | cd40dc53 | Michael Hanselmann | |
506 | cd40dc53 | Michael Hanselmann | |
507 | cd40dc53 | Michael Hanselmann | def _EncodeNodeToDiskDict(value): |
508 | cd40dc53 | Michael Hanselmann | """Encodes a dictionary with node name as key and disk objects as values.
|
509 | cd40dc53 | Michael Hanselmann |
|
510 | cd40dc53 | Michael Hanselmann | """
|
511 | cd40dc53 | Michael Hanselmann | return dict((name, _ObjectListToDict(disks)) |
512 | cd40dc53 | Michael Hanselmann | for name, disks in value.items()) |
513 | cd40dc53 | Michael Hanselmann | |
514 | cd40dc53 | Michael Hanselmann | |
515 | 601dfcbb | Michael Hanselmann | def _PrepareFileUpload(getents_fn, filename): |
516 | cd40dc53 | Michael Hanselmann | """Loads a file and prepares it for an upload to nodes.
|
517 | cd40dc53 | Michael Hanselmann |
|
518 | cd40dc53 | Michael Hanselmann | """
|
519 | 2ce40421 | Michael Hanselmann | statcb = utils.FileStatHelper() |
520 | 2ce40421 | Michael Hanselmann | data = _Compress(utils.ReadFile(filename, preread=statcb)) |
521 | 2ce40421 | Michael Hanselmann | st = statcb.st |
522 | 601dfcbb | Michael Hanselmann | |
523 | 601dfcbb | Michael Hanselmann | if getents_fn is None: |
524 | 601dfcbb | Michael Hanselmann | getents_fn = runtime.GetEnts |
525 | 601dfcbb | Michael Hanselmann | |
526 | 601dfcbb | Michael Hanselmann | getents = getents_fn() |
527 | 601dfcbb | Michael Hanselmann | |
528 | cffbbae7 | Michael Hanselmann | virt_filename = vcluster.MakeVirtualPath(filename) |
529 | cffbbae7 | Michael Hanselmann | |
530 | cffbbae7 | Michael Hanselmann | return [virt_filename, data, st.st_mode, getents.LookupUid(st.st_uid),
|
531 | cd40dc53 | Michael Hanselmann | getents.LookupGid(st.st_gid), st.st_atime, st.st_mtime] |
532 | cd40dc53 | Michael Hanselmann | |
533 | cd40dc53 | Michael Hanselmann | |
534 | cd40dc53 | Michael Hanselmann | def _PrepareFinalizeExportDisks(snap_disks): |
535 | cd40dc53 | Michael Hanselmann | """Encodes disks for finalizing export.
|
536 | cd40dc53 | Michael Hanselmann |
|
537 | cd40dc53 | Michael Hanselmann | """
|
538 | cd40dc53 | Michael Hanselmann | flat_disks = [] |
539 | cd40dc53 | Michael Hanselmann | |
540 | cd40dc53 | Michael Hanselmann | for disk in snap_disks: |
541 | cd40dc53 | Michael Hanselmann | if isinstance(disk, bool): |
542 | cd40dc53 | Michael Hanselmann | flat_disks.append(disk) |
543 | cd40dc53 | Michael Hanselmann | else:
|
544 | cd40dc53 | Michael Hanselmann | flat_disks.append(disk.ToDict()) |
545 | cd40dc53 | Michael Hanselmann | |
546 | cd40dc53 | Michael Hanselmann | return flat_disks
|
547 | cd40dc53 | Michael Hanselmann | |
548 | cd40dc53 | Michael Hanselmann | |
549 | cd40dc53 | Michael Hanselmann | def _EncodeImportExportIO((ieio, ieioargs)): |
550 | cd40dc53 | Michael Hanselmann | """Encodes import/export I/O information.
|
551 | cd40dc53 | Michael Hanselmann |
|
552 | cd40dc53 | Michael Hanselmann | """
|
553 | cd40dc53 | Michael Hanselmann | if ieio == constants.IEIO_RAW_DISK:
|
554 | cd40dc53 | Michael Hanselmann | assert len(ieioargs) == 1 |
555 | cd40dc53 | Michael Hanselmann | return (ieio, (ieioargs[0].ToDict(), )) |
556 | cd40dc53 | Michael Hanselmann | |
557 | cd40dc53 | Michael Hanselmann | if ieio == constants.IEIO_SCRIPT:
|
558 | cd40dc53 | Michael Hanselmann | assert len(ieioargs) == 2 |
559 | cd40dc53 | Michael Hanselmann | return (ieio, (ieioargs[0].ToDict(), ieioargs[1])) |
560 | cd40dc53 | Michael Hanselmann | |
561 | cd40dc53 | Michael Hanselmann | return (ieio, ieioargs)
|
562 | cd40dc53 | Michael Hanselmann | |
563 | cd40dc53 | Michael Hanselmann | |
564 | cd40dc53 | Michael Hanselmann | def _EncodeBlockdevRename(value): |
565 | cd40dc53 | Michael Hanselmann | """Encodes information for renaming block devices.
|
566 | cd40dc53 | Michael Hanselmann |
|
567 | cd40dc53 | Michael Hanselmann | """
|
568 | cd40dc53 | Michael Hanselmann | return [(d.ToDict(), uid) for d, uid in value] |
569 | cd40dc53 | Michael Hanselmann | |
570 | cd40dc53 | Michael Hanselmann | |
571 | b112bfc4 | René Nussbaumer | def MakeLegacyNodeInfo(data): |
572 | b112bfc4 | René Nussbaumer | """Formats the data returned by L{rpc.RpcRunner.call_node_info}.
|
573 | b112bfc4 | René Nussbaumer |
|
574 | b112bfc4 | René Nussbaumer | Converts the data into a single dictionary. This is fine for most use cases,
|
575 | b112bfc4 | René Nussbaumer | but some require information from more than one volume group or hypervisor.
|
576 | b112bfc4 | René Nussbaumer |
|
577 | b112bfc4 | René Nussbaumer | """
|
578 | b112bfc4 | René Nussbaumer | (bootid, (vg_info, ), (hv_info, )) = data |
579 | b112bfc4 | René Nussbaumer | |
580 | b112bfc4 | René Nussbaumer | return utils.JoinDisjointDicts(utils.JoinDisjointDicts(vg_info, hv_info), {
|
581 | b112bfc4 | René Nussbaumer | "bootid": bootid,
|
582 | b112bfc4 | René Nussbaumer | }) |
583 | b112bfc4 | René Nussbaumer | |
584 | b112bfc4 | René Nussbaumer | |
585 | cd46491f | René Nussbaumer | def _AnnotateDParamsDRBD(disk, (drbd_params, data_params, meta_params)): |
586 | cd46491f | René Nussbaumer | """Annotates just DRBD disks layouts.
|
587 | cd46491f | René Nussbaumer |
|
588 | cd46491f | René Nussbaumer | """
|
589 | cd46491f | René Nussbaumer | assert disk.dev_type == constants.LD_DRBD8
|
590 | cd46491f | René Nussbaumer | |
591 | cd46491f | René Nussbaumer | disk.params = objects.FillDict(drbd_params, disk.params) |
592 | cd46491f | René Nussbaumer | (dev_data, dev_meta) = disk.children |
593 | cd46491f | René Nussbaumer | dev_data.params = objects.FillDict(data_params, dev_data.params) |
594 | cd46491f | René Nussbaumer | dev_meta.params = objects.FillDict(meta_params, dev_meta.params) |
595 | cd46491f | René Nussbaumer | |
596 | cd46491f | René Nussbaumer | return disk
|
597 | cd46491f | René Nussbaumer | |
598 | cd46491f | René Nussbaumer | |
599 | cd46491f | René Nussbaumer | def _AnnotateDParamsGeneric(disk, (params, )): |
600 | cd46491f | René Nussbaumer | """Generic disk parameter annotation routine.
|
601 | cd46491f | René Nussbaumer |
|
602 | cd46491f | René Nussbaumer | """
|
603 | cd46491f | René Nussbaumer | assert disk.dev_type != constants.LD_DRBD8
|
604 | cd46491f | René Nussbaumer | |
605 | cd46491f | René Nussbaumer | disk.params = objects.FillDict(params, disk.params) |
606 | cd46491f | René Nussbaumer | |
607 | cd46491f | René Nussbaumer | return disk
|
608 | cd46491f | René Nussbaumer | |
609 | cd46491f | René Nussbaumer | |
610 | cd46491f | René Nussbaumer | def AnnotateDiskParams(template, disks, disk_params): |
611 | cd46491f | René Nussbaumer | """Annotates the disk objects with the disk parameters.
|
612 | cd46491f | René Nussbaumer |
|
613 | cd46491f | René Nussbaumer | @param template: The disk template used
|
614 | cd46491f | René Nussbaumer | @param disks: The list of disks objects to annotate
|
615 | cd46491f | René Nussbaumer | @param disk_params: The disk paramaters for annotation
|
616 | cd46491f | René Nussbaumer | @returns: A list of disk objects annotated
|
617 | cd46491f | René Nussbaumer |
|
618 | cd46491f | René Nussbaumer | """
|
619 | cd46491f | René Nussbaumer | ld_params = objects.Disk.ComputeLDParams(template, disk_params) |
620 | cd46491f | René Nussbaumer | |
621 | cd46491f | René Nussbaumer | if template == constants.DT_DRBD8:
|
622 | cd46491f | René Nussbaumer | annotation_fn = _AnnotateDParamsDRBD |
623 | cd46491f | René Nussbaumer | elif template == constants.DT_DISKLESS:
|
624 | cd46491f | René Nussbaumer | annotation_fn = lambda disk, _: disk
|
625 | cd46491f | René Nussbaumer | else:
|
626 | cd46491f | René Nussbaumer | annotation_fn = _AnnotateDParamsGeneric |
627 | cd46491f | René Nussbaumer | |
628 | 52f93ffd | Michael Hanselmann | return [annotation_fn(disk.Copy(), ld_params) for disk in disks] |
629 | cd46491f | René Nussbaumer | |
630 | cd46491f | René Nussbaumer | |
631 | cd40dc53 | Michael Hanselmann | #: Generic encoders
|
632 | cd40dc53 | Michael Hanselmann | _ENCODERS = { |
633 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_OBJECT_DICT: _ObjectToDict, |
634 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_OBJECT_DICT_LIST: _ObjectListToDict, |
635 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_NODE_TO_DISK_DICT: _EncodeNodeToDiskDict, |
636 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_COMPRESS: _Compress, |
637 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_FINALIZE_EXPORT_DISKS: _PrepareFinalizeExportDisks, |
638 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_IMPEXP_IO: _EncodeImportExportIO, |
639 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_BLOCKDEV_RENAME: _EncodeBlockdevRename, |
640 | cd40dc53 | Michael Hanselmann | } |
641 | cd40dc53 | Michael Hanselmann | |
642 | cd40dc53 | Michael Hanselmann | |
643 | cd40dc53 | Michael Hanselmann | class RpcRunner(_RpcClientBase, |
644 | cd40dc53 | Michael Hanselmann | _generated_rpc.RpcClientDefault, |
645 | 415a7304 | Michael Hanselmann | _generated_rpc.RpcClientBootstrap, |
646 | bd6d1202 | René Nussbaumer | _generated_rpc.RpcClientDnsOnly, |
647 | 415a7304 | Michael Hanselmann | _generated_rpc.RpcClientConfig): |
648 | 87b3cb26 | Michael Hanselmann | """RPC runner class.
|
649 | a8083063 | Iustin Pop |
|
650 | 87b3cb26 | Michael Hanselmann | """
|
651 | d5ea30e8 | Michael Hanselmann | def __init__(self, cfg, lock_monitor_cb, _req_process_fn=None, _getents=None): |
652 | 87b3cb26 | Michael Hanselmann | """Initialized the RPC runner.
|
653 | a8083063 | Iustin Pop |
|
654 | d5ea30e8 | Michael Hanselmann | @type cfg: L{config.ConfigWriter}
|
655 | d5ea30e8 | Michael Hanselmann | @param cfg: Configuration
|
656 | d5ea30e8 | Michael Hanselmann | @type lock_monitor_cb: callable
|
657 | d5ea30e8 | Michael Hanselmann | @param lock_monitor_cb: Lock monitor callback
|
658 | a8083063 | Iustin Pop |
|
659 | 72737a7f | Iustin Pop | """
|
660 | d5ea30e8 | Michael Hanselmann | self._cfg = cfg
|
661 | cd40dc53 | Michael Hanselmann | |
662 | cd40dc53 | Michael Hanselmann | encoders = _ENCODERS.copy() |
663 | cd40dc53 | Michael Hanselmann | |
664 | cd40dc53 | Michael Hanselmann | encoders.update({ |
665 | 601dfcbb | Michael Hanselmann | # Encoders requiring configuration object
|
666 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_INST_DICT: self._InstDict,
|
667 | cd40dc53 | Michael Hanselmann | rpc_defs.ED_INST_DICT_HVP_BEP: self._InstDictHvpBep,
|
668 | b8291e00 | René Nussbaumer | rpc_defs.ED_INST_DICT_OSP_DP: self._InstDictOspDp,
|
669 | 601dfcbb | Michael Hanselmann | |
670 | aedf5fd7 | René Nussbaumer | # Encoders annotating disk parameters
|
671 | aedf5fd7 | René Nussbaumer | rpc_defs.ED_DISKS_DICT_DP: self._DisksDictDP,
|
672 | aedf5fd7 | René Nussbaumer | rpc_defs.ED_SINGLE_DISK_DICT_DP: self._SingleDiskDictDP,
|
673 | aedf5fd7 | René Nussbaumer | |
674 | 601dfcbb | Michael Hanselmann | # Encoders with special requirements
|
675 | 601dfcbb | Michael Hanselmann | rpc_defs.ED_FILE_DETAILS: compat.partial(_PrepareFileUpload, _getents), |
676 | cd40dc53 | Michael Hanselmann | }) |
677 | cd40dc53 | Michael Hanselmann | |
678 | cd40dc53 | Michael Hanselmann | # Resolver using configuration
|
679 | d5ea30e8 | Michael Hanselmann | resolver = compat.partial(_NodeConfigResolver, cfg.GetNodeInfo, |
680 | d5ea30e8 | Michael Hanselmann | cfg.GetAllNodesInfo) |
681 | cd40dc53 | Michael Hanselmann | |
682 | db04ce5d | Michael Hanselmann | # Pylint doesn't recognize multiple inheritance properly, see
|
683 | db04ce5d | Michael Hanselmann | # <http://www.logilab.org/ticket/36586> and
|
684 | db04ce5d | Michael Hanselmann | # <http://www.logilab.org/ticket/35642>
|
685 | db04ce5d | Michael Hanselmann | # pylint: disable=W0233
|
686 | cd40dc53 | Michael Hanselmann | _RpcClientBase.__init__(self, resolver, encoders.get,
|
687 | d5ea30e8 | Michael Hanselmann | lock_monitor_cb=lock_monitor_cb, |
688 | d5ea30e8 | Michael Hanselmann | _req_process_fn=_req_process_fn) |
689 | 415a7304 | Michael Hanselmann | _generated_rpc.RpcClientConfig.__init__(self)
|
690 | db04ce5d | Michael Hanselmann | _generated_rpc.RpcClientBootstrap.__init__(self)
|
691 | bd6d1202 | René Nussbaumer | _generated_rpc.RpcClientDnsOnly.__init__(self)
|
692 | 200de241 | Michael Hanselmann | _generated_rpc.RpcClientDefault.__init__(self)
|
693 | 200de241 | Michael Hanselmann | |
694 | 1bdcbbab | Iustin Pop | def _InstDict(self, instance, hvp=None, bep=None, osp=None): |
695 | 26ba2bd8 | Iustin Pop | """Convert the given instance to a dict.
|
696 | 26ba2bd8 | Iustin Pop |
|
697 | 26ba2bd8 | Iustin Pop | This is done via the instance's ToDict() method and additionally
|
698 | 26ba2bd8 | Iustin Pop | we fill the hvparams with the cluster defaults.
|
699 | 26ba2bd8 | Iustin Pop |
|
700 | 26ba2bd8 | Iustin Pop | @type instance: L{objects.Instance}
|
701 | 26ba2bd8 | Iustin Pop | @param instance: an Instance object
|
702 | 0eca8e0c | Iustin Pop | @type hvp: dict or None
|
703 | 5bbd3f7f | Michael Hanselmann | @param hvp: a dictionary with overridden hypervisor parameters
|
704 | 0eca8e0c | Iustin Pop | @type bep: dict or None
|
705 | 5bbd3f7f | Michael Hanselmann | @param bep: a dictionary with overridden backend parameters
|
706 | 1bdcbbab | Iustin Pop | @type osp: dict or None
|
707 | 8d8c4eff | Michael Hanselmann | @param osp: a dictionary with overridden os parameters
|
708 | 26ba2bd8 | Iustin Pop | @rtype: dict
|
709 | 26ba2bd8 | Iustin Pop | @return: the instance dict, with the hvparams filled with the
|
710 | 26ba2bd8 | Iustin Pop | cluster defaults
|
711 | 26ba2bd8 | Iustin Pop |
|
712 | 26ba2bd8 | Iustin Pop | """
|
713 | 26ba2bd8 | Iustin Pop | idict = instance.ToDict() |
714 | 5b442704 | Iustin Pop | cluster = self._cfg.GetClusterInfo()
|
715 | 5b442704 | Iustin Pop | idict["hvparams"] = cluster.FillHV(instance)
|
716 | 0eca8e0c | Iustin Pop | if hvp is not None: |
717 | 0eca8e0c | Iustin Pop | idict["hvparams"].update(hvp)
|
718 | 5b442704 | Iustin Pop | idict["beparams"] = cluster.FillBE(instance)
|
719 | 0eca8e0c | Iustin Pop | if bep is not None: |
720 | 0eca8e0c | Iustin Pop | idict["beparams"].update(bep)
|
721 | 1bdcbbab | Iustin Pop | idict["osparams"] = cluster.SimpleFillOS(instance.os, instance.osparams)
|
722 | 1bdcbbab | Iustin Pop | if osp is not None: |
723 | 1bdcbbab | Iustin Pop | idict["osparams"].update(osp)
|
724 | b848ce79 | Guido Trotter | for nic in idict["nics"]: |
725 | 3ccb3a64 | Michael Hanselmann | nic["nicparams"] = objects.FillDict(
|
726 | b848ce79 | Guido Trotter | cluster.nicparams[constants.PP_DEFAULT], |
727 | 3ccb3a64 | Michael Hanselmann | nic["nicparams"])
|
728 | 26ba2bd8 | Iustin Pop | return idict
|
729 | 26ba2bd8 | Iustin Pop | |
730 | c4de9b7a | Michael Hanselmann | def _InstDictHvpBep(self, (instance, hvp, bep)): |
731 | c4de9b7a | Michael Hanselmann | """Wrapper for L{_InstDict}.
|
732 | c4de9b7a | Michael Hanselmann |
|
733 | c4de9b7a | Michael Hanselmann | """
|
734 | c4de9b7a | Michael Hanselmann | return self._InstDict(instance, hvp=hvp, bep=bep) |
735 | c4de9b7a | Michael Hanselmann | |
736 | b8291e00 | René Nussbaumer | def _InstDictOspDp(self, (instance, osparams)): |
737 | c4de9b7a | Michael Hanselmann | """Wrapper for L{_InstDict}.
|
738 | c4de9b7a | Michael Hanselmann |
|
739 | c4de9b7a | Michael Hanselmann | """
|
740 | b8291e00 | René Nussbaumer | updated_inst = self._InstDict(instance, osp=osparams)
|
741 | b8291e00 | René Nussbaumer | updated_inst["disks"] = self._DisksDictDP((instance.disks, instance)) |
742 | b8291e00 | René Nussbaumer | return updated_inst
|
743 | c4de9b7a | Michael Hanselmann | |
744 | aedf5fd7 | René Nussbaumer | def _DisksDictDP(self, (disks, instance)): |
745 | aedf5fd7 | René Nussbaumer | """Wrapper for L{AnnotateDiskParams}.
|
746 | aedf5fd7 | René Nussbaumer |
|
747 | aedf5fd7 | René Nussbaumer | """
|
748 | aedf5fd7 | René Nussbaumer | diskparams = self._cfg.GetInstanceDiskParams(instance)
|
749 | aedf5fd7 | René Nussbaumer | return [disk.ToDict()
|
750 | aedf5fd7 | René Nussbaumer | for disk in AnnotateDiskParams(instance.disk_template, |
751 | aedf5fd7 | René Nussbaumer | disks, diskparams)] |
752 | aedf5fd7 | René Nussbaumer | |
753 | aedf5fd7 | René Nussbaumer | def _SingleDiskDictDP(self, (disk, instance)): |
754 | aedf5fd7 | René Nussbaumer | """Wrapper for L{AnnotateDiskParams}.
|
755 | aedf5fd7 | René Nussbaumer |
|
756 | aedf5fd7 | René Nussbaumer | """
|
757 | aedf5fd7 | René Nussbaumer | (anno_disk,) = self._DisksDictDP(([disk], instance))
|
758 | aedf5fd7 | René Nussbaumer | return anno_disk
|
759 | aedf5fd7 | René Nussbaumer | |
760 | fb1ffbca | Michael Hanselmann | |
761 | cd40dc53 | Michael Hanselmann | class JobQueueRunner(_RpcClientBase, _generated_rpc.RpcClientJobQueue): |
762 | fb1ffbca | Michael Hanselmann | """RPC wrappers for job queue.
|
763 | fb1ffbca | Michael Hanselmann |
|
764 | fb1ffbca | Michael Hanselmann | """
|
765 | fb1ffbca | Michael Hanselmann | def __init__(self, context, address_list): |
766 | fb1ffbca | Michael Hanselmann | """Initializes this class.
|
767 | fb1ffbca | Michael Hanselmann |
|
768 | fb1ffbca | Michael Hanselmann | """
|
769 | fb1ffbca | Michael Hanselmann | if address_list is None: |
770 | bd6d1202 | René Nussbaumer | resolver = compat.partial(_SsconfResolver, True)
|
771 | fb1ffbca | Michael Hanselmann | else:
|
772 | fb1ffbca | Michael Hanselmann | # Caller provided an address list
|
773 | fb1ffbca | Michael Hanselmann | resolver = _StaticResolver(address_list) |
774 | fb1ffbca | Michael Hanselmann | |
775 | cd40dc53 | Michael Hanselmann | _RpcClientBase.__init__(self, resolver, _ENCODERS.get,
|
776 | cd40dc53 | Michael Hanselmann | lock_monitor_cb=context.glm.AddToLockMonitor) |
777 | cd40dc53 | Michael Hanselmann | _generated_rpc.RpcClientJobQueue.__init__(self)
|
778 | db04ce5d | Michael Hanselmann | |
779 | db04ce5d | Michael Hanselmann | |
780 | bd6d1202 | René Nussbaumer | class BootstrapRunner(_RpcClientBase, |
781 | bd6d1202 | René Nussbaumer | _generated_rpc.RpcClientBootstrap, |
782 | bd6d1202 | René Nussbaumer | _generated_rpc.RpcClientDnsOnly): |
783 | db04ce5d | Michael Hanselmann | """RPC wrappers for bootstrapping.
|
784 | db04ce5d | Michael Hanselmann |
|
785 | db04ce5d | Michael Hanselmann | """
|
786 | db04ce5d | Michael Hanselmann | def __init__(self): |
787 | db04ce5d | Michael Hanselmann | """Initializes this class.
|
788 | db04ce5d | Michael Hanselmann |
|
789 | db04ce5d | Michael Hanselmann | """
|
790 | bd6d1202 | René Nussbaumer | # Pylint doesn't recognize multiple inheritance properly, see
|
791 | bd6d1202 | René Nussbaumer | # <http://www.logilab.org/ticket/36586> and
|
792 | bd6d1202 | René Nussbaumer | # <http://www.logilab.org/ticket/35642>
|
793 | bd6d1202 | René Nussbaumer | # pylint: disable=W0233
|
794 | bd6d1202 | René Nussbaumer | _RpcClientBase.__init__(self, compat.partial(_SsconfResolver, True), |
795 | bd6d1202 | René Nussbaumer | _ENCODERS.get) |
796 | db04ce5d | Michael Hanselmann | _generated_rpc.RpcClientBootstrap.__init__(self)
|
797 | bd6d1202 | René Nussbaumer | _generated_rpc.RpcClientDnsOnly.__init__(self)
|
798 | bd6d1202 | René Nussbaumer | |
799 | bd6d1202 | René Nussbaumer | |
800 | bd6d1202 | René Nussbaumer | class DnsOnlyRunner(_RpcClientBase, _generated_rpc.RpcClientDnsOnly): |
801 | bd6d1202 | René Nussbaumer | """RPC wrappers for calls using only DNS.
|
802 | bd6d1202 | René Nussbaumer |
|
803 | bd6d1202 | René Nussbaumer | """
|
804 | bd6d1202 | René Nussbaumer | def __init__(self): |
805 | bd6d1202 | René Nussbaumer | """Initialize this class.
|
806 | bd6d1202 | René Nussbaumer |
|
807 | bd6d1202 | René Nussbaumer | """
|
808 | bd6d1202 | René Nussbaumer | _RpcClientBase.__init__(self, compat.partial(_SsconfResolver, False), |
809 | bd6d1202 | René Nussbaumer | _ENCODERS.get) |
810 | bd6d1202 | René Nussbaumer | _generated_rpc.RpcClientDnsOnly.__init__(self)
|
811 | db04ce5d | Michael Hanselmann | |
812 | 415a7304 | Michael Hanselmann | |
813 | cd40dc53 | Michael Hanselmann | class ConfigRunner(_RpcClientBase, _generated_rpc.RpcClientConfig): |
814 | 415a7304 | Michael Hanselmann | """RPC wrappers for L{config}.
|
815 | 415a7304 | Michael Hanselmann |
|
816 | 415a7304 | Michael Hanselmann | """
|
817 | c2dc025a | Michael Hanselmann | def __init__(self, context, address_list, _req_process_fn=None, |
818 | c2dc025a | Michael Hanselmann | _getents=None):
|
819 | 415a7304 | Michael Hanselmann | """Initializes this class.
|
820 | 415a7304 | Michael Hanselmann |
|
821 | 415a7304 | Michael Hanselmann | """
|
822 | b2acdbdc | Michael Hanselmann | if context:
|
823 | b2acdbdc | Michael Hanselmann | lock_monitor_cb = context.glm.AddToLockMonitor |
824 | b2acdbdc | Michael Hanselmann | else:
|
825 | b2acdbdc | Michael Hanselmann | lock_monitor_cb = None
|
826 | b2acdbdc | Michael Hanselmann | |
827 | 415a7304 | Michael Hanselmann | if address_list is None: |
828 | bd6d1202 | René Nussbaumer | resolver = compat.partial(_SsconfResolver, True)
|
829 | 415a7304 | Michael Hanselmann | else:
|
830 | 415a7304 | Michael Hanselmann | # Caller provided an address list
|
831 | 415a7304 | Michael Hanselmann | resolver = _StaticResolver(address_list) |
832 | 415a7304 | Michael Hanselmann | |
833 | c2dc025a | Michael Hanselmann | encoders = _ENCODERS.copy() |
834 | c2dc025a | Michael Hanselmann | |
835 | c2dc025a | Michael Hanselmann | encoders.update({ |
836 | c2dc025a | Michael Hanselmann | rpc_defs.ED_FILE_DETAILS: compat.partial(_PrepareFileUpload, _getents), |
837 | c2dc025a | Michael Hanselmann | }) |
838 | c2dc025a | Michael Hanselmann | |
839 | c2dc025a | Michael Hanselmann | _RpcClientBase.__init__(self, resolver, encoders.get,
|
840 | c2dc025a | Michael Hanselmann | lock_monitor_cb=lock_monitor_cb, |
841 | c2dc025a | Michael Hanselmann | _req_process_fn=_req_process_fn) |
842 | cd40dc53 | Michael Hanselmann | _generated_rpc.RpcClientConfig.__init__(self) |