root / lib / bootstrap.py @ a52978c7
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1 | a0c9f010 | Michael Hanselmann | #
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2 | a0c9f010 | Michael Hanselmann | #
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3 | a0c9f010 | Michael Hanselmann | |
4 | 7925d409 | Apollon Oikonomopoulos | # Copyright (C) 2006, 2007, 2008, 2010, 2011 Google Inc.
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5 | a0c9f010 | Michael Hanselmann | #
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6 | a0c9f010 | Michael Hanselmann | # This program is free software; you can redistribute it and/or modify
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7 | a0c9f010 | Michael Hanselmann | # it under the terms of the GNU General Public License as published by
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8 | a0c9f010 | Michael Hanselmann | # the Free Software Foundation; either version 2 of the License, or
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9 | a0c9f010 | Michael Hanselmann | # (at your option) any later version.
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10 | a0c9f010 | Michael Hanselmann | #
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11 | a0c9f010 | Michael Hanselmann | # This program is distributed in the hope that it will be useful, but
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12 | a0c9f010 | Michael Hanselmann | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | a0c9f010 | Michael Hanselmann | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | a0c9f010 | Michael Hanselmann | # General Public License for more details.
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15 | a0c9f010 | Michael Hanselmann | #
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16 | a0c9f010 | Michael Hanselmann | # You should have received a copy of the GNU General Public License
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17 | a0c9f010 | Michael Hanselmann | # along with this program; if not, write to the Free Software
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18 | a0c9f010 | Michael Hanselmann | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | a0c9f010 | Michael Hanselmann | # 02110-1301, USA.
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20 | a0c9f010 | Michael Hanselmann | |
21 | a0c9f010 | Michael Hanselmann | |
22 | a0c9f010 | Michael Hanselmann | """Functions to bootstrap a new cluster.
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23 | a0c9f010 | Michael Hanselmann |
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24 | a0c9f010 | Michael Hanselmann | """
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25 | a0c9f010 | Michael Hanselmann | |
26 | a0c9f010 | Michael Hanselmann | import os |
27 | a0c9f010 | Michael Hanselmann | import os.path |
28 | a0c9f010 | Michael Hanselmann | import re |
29 | b1b6ea87 | Iustin Pop | import logging |
30 | d693c864 | Iustin Pop | import time |
31 | a0c9f010 | Michael Hanselmann | |
32 | a0c9f010 | Michael Hanselmann | from ganeti import rpc |
33 | a0c9f010 | Michael Hanselmann | from ganeti import ssh |
34 | a0c9f010 | Michael Hanselmann | from ganeti import utils |
35 | a0c9f010 | Michael Hanselmann | from ganeti import errors |
36 | a0c9f010 | Michael Hanselmann | from ganeti import config |
37 | a0c9f010 | Michael Hanselmann | from ganeti import constants |
38 | b9eeeb02 | Michael Hanselmann | from ganeti import objects |
39 | a0c9f010 | Michael Hanselmann | from ganeti import ssconf |
40 | a33848a5 | Guido Trotter | from ganeti import serializer |
41 | a5728081 | Guido Trotter | from ganeti import hypervisor |
42 | a721e23a | Luca Bigliardi | from ganeti import bdev |
43 | a744b676 | Manuel Franceschini | from ganeti import netutils |
44 | d367b66c | Manuel Franceschini | from ganeti import backend |
45 | 3b6b6129 | Michael Hanselmann | from ganeti import luxi |
46 | ff699aa9 | Michael Hanselmann | from ganeti import jstore |
47 | 3b6b6129 | Michael Hanselmann | |
48 | a0c9f010 | Michael Hanselmann | |
49 | 88b92fe3 | Guido Trotter | # ec_id for InitConfig's temporary reservation manager
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50 | 88b92fe3 | Guido Trotter | _INITCONF_ECID = "initconfig-ecid"
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51 | 88b92fe3 | Guido Trotter | |
52 | 3b6b6129 | Michael Hanselmann | #: After how many seconds daemon must be responsive
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53 | 3b6b6129 | Michael Hanselmann | _DAEMON_READY_TIMEOUT = 10.0
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54 | 3b6b6129 | Michael Hanselmann | |
55 | e38220e4 | Michael Hanselmann | |
56 | 531baf8e | Iustin Pop | def _InitSSHSetup(): |
57 | a0c9f010 | Michael Hanselmann | """Setup the SSH configuration for the cluster.
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58 | a0c9f010 | Michael Hanselmann |
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59 | a0c9f010 | Michael Hanselmann | This generates a dsa keypair for root, adds the pub key to the
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60 | a0c9f010 | Michael Hanselmann | permitted hosts and adds the hostkey to its own known hosts.
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61 | a0c9f010 | Michael Hanselmann |
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62 | a0c9f010 | Michael Hanselmann | """
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63 | a0c9f010 | Michael Hanselmann | priv_key, pub_key, auth_keys = ssh.GetUserFiles(constants.GANETI_RUNAS) |
64 | a0c9f010 | Michael Hanselmann | |
65 | a0c9f010 | Michael Hanselmann | for name in priv_key, pub_key: |
66 | a0c9f010 | Michael Hanselmann | if os.path.exists(name):
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67 | a0c9f010 | Michael Hanselmann | utils.CreateBackup(name) |
68 | a0c9f010 | Michael Hanselmann | utils.RemoveFile(name) |
69 | a0c9f010 | Michael Hanselmann | |
70 | a0c9f010 | Michael Hanselmann | result = utils.RunCmd(["ssh-keygen", "-t", "dsa", |
71 | a0c9f010 | Michael Hanselmann | "-f", priv_key,
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72 | a0c9f010 | Michael Hanselmann | "-q", "-N", ""]) |
73 | a0c9f010 | Michael Hanselmann | if result.failed:
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74 | a0c9f010 | Michael Hanselmann | raise errors.OpExecError("Could not generate ssh keypair, error %s" % |
75 | a0c9f010 | Michael Hanselmann | result.output) |
76 | a0c9f010 | Michael Hanselmann | |
77 | 7a0156dc | Luca Bigliardi | utils.AddAuthorizedKey(auth_keys, utils.ReadFile(pub_key)) |
78 | a0c9f010 | Michael Hanselmann | |
79 | a0c9f010 | Michael Hanselmann | |
80 | c008906b | Michael Hanselmann | def GenerateHmacKey(file_name): |
81 | c008906b | Michael Hanselmann | """Writes a new HMAC key.
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82 | c008906b | Michael Hanselmann |
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83 | c008906b | Michael Hanselmann | @type file_name: str
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84 | c008906b | Michael Hanselmann | @param file_name: Path to output file
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85 | c008906b | Michael Hanselmann |
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86 | c008906b | Michael Hanselmann | """
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87 | 43575108 | Michael Hanselmann | utils.WriteFile(file_name, data="%s\n" % utils.GenerateSecret(), mode=0400, |
88 | 43575108 | Michael Hanselmann | backup=True)
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89 | 43575108 | Michael Hanselmann | |
90 | 43575108 | Michael Hanselmann | |
91 | 6b7d5878 | Michael Hanselmann | def GenerateClusterCrypto(new_cluster_cert, new_rapi_cert, new_confd_hmac_key, |
92 | af2ae1c0 | Iustin Pop | new_cds, rapi_cert_pem=None, cds=None, |
93 | aeefe835 | Iustin Pop | nodecert_file=constants.NODED_CERT_FILE, |
94 | aeefe835 | Iustin Pop | rapicert_file=constants.RAPI_CERT_FILE, |
95 | fc0726b9 | Michael Hanselmann | hmackey_file=constants.CONFD_HMAC_KEY, |
96 | fc0726b9 | Michael Hanselmann | cds_file=constants.CLUSTER_DOMAIN_SECRET_FILE): |
97 | 43575108 | Michael Hanselmann | """Updates the cluster certificates, keys and secrets.
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98 | 43575108 | Michael Hanselmann |
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99 | 43575108 | Michael Hanselmann | @type new_cluster_cert: bool
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100 | 43575108 | Michael Hanselmann | @param new_cluster_cert: Whether to generate a new cluster certificate
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101 | 43575108 | Michael Hanselmann | @type new_rapi_cert: bool
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102 | 43575108 | Michael Hanselmann | @param new_rapi_cert: Whether to generate a new RAPI certificate
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103 | 6b7d5878 | Michael Hanselmann | @type new_confd_hmac_key: bool
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104 | 6b7d5878 | Michael Hanselmann | @param new_confd_hmac_key: Whether to generate a new HMAC key
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105 | 3db3eb2a | Michael Hanselmann | @type new_cds: bool
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106 | 3db3eb2a | Michael Hanselmann | @param new_cds: Whether to generate a new cluster domain secret
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107 | 43575108 | Michael Hanselmann | @type rapi_cert_pem: string
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108 | 43575108 | Michael Hanselmann | @param rapi_cert_pem: New RAPI certificate in PEM format
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109 | 3db3eb2a | Michael Hanselmann | @type cds: string
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110 | 3db3eb2a | Michael Hanselmann | @param cds: New cluster domain secret
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111 | aeefe835 | Iustin Pop | @type nodecert_file: string
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112 | aeefe835 | Iustin Pop | @param nodecert_file: optional override of the node cert file path
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113 | aeefe835 | Iustin Pop | @type rapicert_file: string
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114 | aeefe835 | Iustin Pop | @param rapicert_file: optional override of the rapi cert file path
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115 | aeefe835 | Iustin Pop | @type hmackey_file: string
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116 | aeefe835 | Iustin Pop | @param hmackey_file: optional override of the hmac key file path
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117 | 43575108 | Michael Hanselmann |
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118 | 43575108 | Michael Hanselmann | """
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119 | 168c1de2 | Michael Hanselmann | # noded SSL certificate
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120 | aeefe835 | Iustin Pop | cluster_cert_exists = os.path.exists(nodecert_file) |
121 | 43575108 | Michael Hanselmann | if new_cluster_cert or not cluster_cert_exists: |
122 | 43575108 | Michael Hanselmann | if cluster_cert_exists:
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123 | aeefe835 | Iustin Pop | utils.CreateBackup(nodecert_file) |
124 | 43575108 | Michael Hanselmann | |
125 | aeefe835 | Iustin Pop | logging.debug("Generating new cluster certificate at %s", nodecert_file)
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126 | af2ae1c0 | Iustin Pop | utils.GenerateSelfSignedSslCert(nodecert_file) |
127 | 43575108 | Michael Hanselmann | |
128 | 6b7d5878 | Michael Hanselmann | # confd HMAC key
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129 | aeefe835 | Iustin Pop | if new_confd_hmac_key or not os.path.exists(hmackey_file): |
130 | aeefe835 | Iustin Pop | logging.debug("Writing new confd HMAC key to %s", hmackey_file)
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131 | aeefe835 | Iustin Pop | GenerateHmacKey(hmackey_file) |
132 | 43575108 | Michael Hanselmann | |
133 | 43575108 | Michael Hanselmann | # RAPI
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134 | aeefe835 | Iustin Pop | rapi_cert_exists = os.path.exists(rapicert_file) |
135 | 43575108 | Michael Hanselmann | |
136 | 43575108 | Michael Hanselmann | if rapi_cert_pem:
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137 | 43575108 | Michael Hanselmann | # Assume rapi_pem contains a valid PEM-formatted certificate and key
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138 | aeefe835 | Iustin Pop | logging.debug("Writing RAPI certificate at %s", rapicert_file)
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139 | aeefe835 | Iustin Pop | utils.WriteFile(rapicert_file, data=rapi_cert_pem, backup=True)
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140 | 43575108 | Michael Hanselmann | |
141 | 43575108 | Michael Hanselmann | elif new_rapi_cert or not rapi_cert_exists: |
142 | 43575108 | Michael Hanselmann | if rapi_cert_exists:
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143 | aeefe835 | Iustin Pop | utils.CreateBackup(rapicert_file) |
144 | 43575108 | Michael Hanselmann | |
145 | aeefe835 | Iustin Pop | logging.debug("Generating new RAPI certificate at %s", rapicert_file)
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146 | af2ae1c0 | Iustin Pop | utils.GenerateSelfSignedSslCert(rapicert_file) |
147 | c008906b | Michael Hanselmann | |
148 | 3db3eb2a | Michael Hanselmann | # Cluster domain secret
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149 | 3db3eb2a | Michael Hanselmann | if cds:
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150 | fc0726b9 | Michael Hanselmann | logging.debug("Writing cluster domain secret to %s", cds_file)
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151 | fc0726b9 | Michael Hanselmann | utils.WriteFile(cds_file, data=cds, backup=True)
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152 | fc0726b9 | Michael Hanselmann | |
153 | fc0726b9 | Michael Hanselmann | elif new_cds or not os.path.exists(cds_file): |
154 | fc0726b9 | Michael Hanselmann | logging.debug("Generating new cluster domain secret at %s", cds_file)
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155 | fc0726b9 | Michael Hanselmann | GenerateHmacKey(cds_file) |
156 | 3db3eb2a | Michael Hanselmann | |
157 | c008906b | Michael Hanselmann | |
158 | 8f215968 | Michael Hanselmann | def _InitGanetiServerSetup(master_name): |
159 | 40a97d80 | Michael Hanselmann | """Setup the necessary configuration for the initial node daemon.
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160 | 40a97d80 | Michael Hanselmann |
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161 | 40a97d80 | Michael Hanselmann | This creates the nodepass file containing the shared password for
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162 | 600535f0 | Manuel Franceschini | the cluster, generates the SSL certificate and starts the node daemon.
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163 | 600535f0 | Manuel Franceschini |
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164 | 600535f0 | Manuel Franceschini | @type master_name: str
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165 | 600535f0 | Manuel Franceschini | @param master_name: Name of the master node
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166 | 40a97d80 | Michael Hanselmann |
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167 | 40a97d80 | Michael Hanselmann | """
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168 | 43575108 | Michael Hanselmann | # Generate cluster secrets
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169 | 3db3eb2a | Michael Hanselmann | GenerateClusterCrypto(True, False, False, False) |
170 | 4a34c5cf | Guido Trotter | |
171 | f154a7a3 | Michael Hanselmann | result = utils.RunCmd([constants.DAEMON_UTIL, "start", constants.NODED])
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172 | a0c9f010 | Michael Hanselmann | if result.failed:
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173 | a0c9f010 | Michael Hanselmann | raise errors.OpExecError("Could not start the node daemon, command %s" |
174 | a0c9f010 | Michael Hanselmann | " had exitcode %s and error %s" %
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175 | a0c9f010 | Michael Hanselmann | (result.cmd, result.exit_code, result.output)) |
176 | a0c9f010 | Michael Hanselmann | |
177 | 5627f375 | Michael Hanselmann | _WaitForNodeDaemon(master_name) |
178 | 5627f375 | Michael Hanselmann | |
179 | 5627f375 | Michael Hanselmann | |
180 | 5627f375 | Michael Hanselmann | def _WaitForNodeDaemon(node_name): |
181 | 5627f375 | Michael Hanselmann | """Wait for node daemon to become responsive.
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182 | 5627f375 | Michael Hanselmann |
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183 | 5627f375 | Michael Hanselmann | """
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184 | d3833ebd | Michael Hanselmann | def _CheckNodeDaemon(): |
185 | 5627f375 | Michael Hanselmann | result = rpc.RpcRunner.call_version([node_name])[node_name] |
186 | d3833ebd | Michael Hanselmann | if result.fail_msg:
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187 | d3833ebd | Michael Hanselmann | raise utils.RetryAgain()
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188 | 8f215968 | Michael Hanselmann | |
189 | d3833ebd | Michael Hanselmann | try:
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190 | 3b6b6129 | Michael Hanselmann | utils.Retry(_CheckNodeDaemon, 1.0, _DAEMON_READY_TIMEOUT)
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191 | d3833ebd | Michael Hanselmann | except utils.RetryTimeout:
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192 | 5627f375 | Michael Hanselmann | raise errors.OpExecError("Node daemon on %s didn't answer queries within" |
193 | 3b6b6129 | Michael Hanselmann | " %s seconds" % (node_name, _DAEMON_READY_TIMEOUT))
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194 | 3b6b6129 | Michael Hanselmann | |
195 | 3b6b6129 | Michael Hanselmann | |
196 | 3b6b6129 | Michael Hanselmann | def _WaitForMasterDaemon(): |
197 | 3b6b6129 | Michael Hanselmann | """Wait for master daemon to become responsive.
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198 | 3b6b6129 | Michael Hanselmann |
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199 | 3b6b6129 | Michael Hanselmann | """
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200 | 3b6b6129 | Michael Hanselmann | def _CheckMasterDaemon(): |
201 | 3b6b6129 | Michael Hanselmann | try:
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202 | 3b6b6129 | Michael Hanselmann | cl = luxi.Client() |
203 | 3b6b6129 | Michael Hanselmann | (cluster_name, ) = cl.QueryConfigValues(["cluster_name"])
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204 | 3b6b6129 | Michael Hanselmann | except Exception: |
205 | 3b6b6129 | Michael Hanselmann | raise utils.RetryAgain()
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206 | 3b6b6129 | Michael Hanselmann | |
207 | 3b6b6129 | Michael Hanselmann | logging.debug("Received cluster name %s from master", cluster_name)
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208 | 3b6b6129 | Michael Hanselmann | |
209 | 3b6b6129 | Michael Hanselmann | try:
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210 | 3b6b6129 | Michael Hanselmann | utils.Retry(_CheckMasterDaemon, 1.0, _DAEMON_READY_TIMEOUT)
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211 | 3b6b6129 | Michael Hanselmann | except utils.RetryTimeout:
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212 | 3b6b6129 | Michael Hanselmann | raise errors.OpExecError("Master daemon didn't answer queries within" |
213 | 3b6b6129 | Michael Hanselmann | " %s seconds" % _DAEMON_READY_TIMEOUT)
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214 | 5627f375 | Michael Hanselmann | |
215 | a0c9f010 | Michael Hanselmann | |
216 | 0e3baaf3 | Iustin Pop | def _InitFileStorage(file_storage_dir): |
217 | 0e3baaf3 | Iustin Pop | """Initialize if needed the file storage.
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218 | 0e3baaf3 | Iustin Pop |
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219 | 0e3baaf3 | Iustin Pop | @param file_storage_dir: the user-supplied value
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220 | 0e3baaf3 | Iustin Pop | @return: either empty string (if file storage was disabled at build
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221 | 0e3baaf3 | Iustin Pop | time) or the normalized path to the storage directory
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222 | 0e3baaf3 | Iustin Pop |
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223 | 0e3baaf3 | Iustin Pop | """
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224 | 0e3baaf3 | Iustin Pop | file_storage_dir = os.path.normpath(file_storage_dir) |
225 | 0e3baaf3 | Iustin Pop | |
226 | 0e3baaf3 | Iustin Pop | if not os.path.isabs(file_storage_dir): |
227 | 0376655e | Guido Trotter | raise errors.OpPrereqError("File storage directory '%s' is not an absolute" |
228 | 0376655e | Guido Trotter | " path" % file_storage_dir, errors.ECODE_INVAL)
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229 | 0e3baaf3 | Iustin Pop | |
230 | 0e3baaf3 | Iustin Pop | if not os.path.exists(file_storage_dir): |
231 | 0e3baaf3 | Iustin Pop | try:
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232 | 0e3baaf3 | Iustin Pop | os.makedirs(file_storage_dir, 0750)
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233 | 0e3baaf3 | Iustin Pop | except OSError, err: |
234 | 0e3baaf3 | Iustin Pop | raise errors.OpPrereqError("Cannot create file storage directory" |
235 | 0e3baaf3 | Iustin Pop | " '%s': %s" % (file_storage_dir, err),
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236 | 0e3baaf3 | Iustin Pop | errors.ECODE_ENVIRON) |
237 | 0e3baaf3 | Iustin Pop | |
238 | 0e3baaf3 | Iustin Pop | if not os.path.isdir(file_storage_dir): |
239 | 0e3baaf3 | Iustin Pop | raise errors.OpPrereqError("The file storage directory '%s' is not" |
240 | 0e3baaf3 | Iustin Pop | " a directory." % file_storage_dir,
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241 | 0e3baaf3 | Iustin Pop | errors.ECODE_ENVIRON) |
242 | 0e3baaf3 | Iustin Pop | return file_storage_dir
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243 | 0e3baaf3 | Iustin Pop | |
244 | 0e3baaf3 | Iustin Pop | |
245 | b459a848 | Andrea Spadaccini | def InitCluster(cluster_name, mac_prefix, # pylint: disable=R0913 |
246 | 7925d409 | Apollon Oikonomopoulos | master_netdev, file_storage_dir, shared_file_storage_dir, |
247 | 7925d409 | Apollon Oikonomopoulos | candidate_pool_size, secondary_ip=None, vg_name=None, |
248 | 7925d409 | Apollon Oikonomopoulos | beparams=None, nicparams=None, ndparams=None, hvparams=None, |
249 | 6204ee71 | Renรฉ Nussbaumer | enabled_hypervisors=None, modify_etc_hosts=True, |
250 | 6204ee71 | Renรฉ Nussbaumer | modify_ssh_setup=True, maintain_node_health=False, |
251 | 6204ee71 | Renรฉ Nussbaumer | drbd_helper=None, uid_pool=None, default_iallocator=None, |
252 | 3d914585 | Renรฉ Nussbaumer | primary_ip_version=None, prealloc_wipe_disks=False): |
253 | a0c9f010 | Michael Hanselmann | """Initialise the cluster.
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254 | a0c9f010 | Michael Hanselmann |
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255 | ce735215 | Guido Trotter | @type candidate_pool_size: int
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256 | ce735215 | Guido Trotter | @param candidate_pool_size: master candidate pool size
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257 | ce735215 | Guido Trotter |
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258 | a0c9f010 | Michael Hanselmann | """
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259 | ce735215 | Guido Trotter | # TODO: complete the docstring
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260 | a0c9f010 | Michael Hanselmann | if config.ConfigWriter.IsCluster():
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261 | debac808 | Iustin Pop | raise errors.OpPrereqError("Cluster is already initialised", |
262 | debac808 | Iustin Pop | errors.ECODE_STATE) |
263 | a0c9f010 | Michael Hanselmann | |
264 | b119bccb | Guido Trotter | if not enabled_hypervisors: |
265 | b119bccb | Guido Trotter | raise errors.OpPrereqError("Enabled hypervisors list must contain at" |
266 | debac808 | Iustin Pop | " least one member", errors.ECODE_INVAL)
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267 | b119bccb | Guido Trotter | invalid_hvs = set(enabled_hypervisors) - constants.HYPER_TYPES
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268 | b119bccb | Guido Trotter | if invalid_hvs:
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269 | b119bccb | Guido Trotter | raise errors.OpPrereqError("Enabled hypervisors contains invalid" |
270 | debac808 | Iustin Pop | " entries: %s" % invalid_hvs,
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271 | debac808 | Iustin Pop | errors.ECODE_INVAL) |
272 | b119bccb | Guido Trotter | |
273 | 2f20d07b | Manuel Franceschini | ipcls = None
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274 | 2f20d07b | Manuel Franceschini | if primary_ip_version == constants.IP4_VERSION:
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275 | 2f20d07b | Manuel Franceschini | ipcls = netutils.IP4Address |
276 | 2f20d07b | Manuel Franceschini | elif primary_ip_version == constants.IP6_VERSION:
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277 | 2f20d07b | Manuel Franceschini | ipcls = netutils.IP6Address |
278 | 2f20d07b | Manuel Franceschini | else:
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279 | 2f20d07b | Manuel Franceschini | raise errors.OpPrereqError("Invalid primary ip version: %d." % |
280 | 2f20d07b | Manuel Franceschini | primary_ip_version) |
281 | 2f20d07b | Manuel Franceschini | |
282 | 2f20d07b | Manuel Franceschini | hostname = netutils.GetHostname(family=ipcls.family) |
283 | 2f20d07b | Manuel Franceschini | if not ipcls.IsValid(hostname.ip): |
284 | 2f20d07b | Manuel Franceschini | raise errors.OpPrereqError("This host's IP (%s) is not a valid IPv%d" |
285 | 2f20d07b | Manuel Franceschini | " address." % (hostname.ip, primary_ip_version))
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286 | 2f20d07b | Manuel Franceschini | |
287 | 2f20d07b | Manuel Franceschini | if ipcls.IsLoopback(hostname.ip):
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288 | 8b312c1d | Manuel Franceschini | raise errors.OpPrereqError("This host's IP (%s) resolves to a loopback" |
289 | 8b312c1d | Manuel Franceschini | " address. Please fix DNS or %s." %
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290 | debac808 | Iustin Pop | (hostname.ip, constants.ETC_HOSTS), |
291 | debac808 | Iustin Pop | errors.ECODE_ENVIRON) |
292 | a0c9f010 | Michael Hanselmann | |
293 | 2f20d07b | Manuel Franceschini | if not ipcls.Own(hostname.ip): |
294 | a0c9f010 | Michael Hanselmann | raise errors.OpPrereqError("Inconsistency: this host's name resolves" |
295 | a0c9f010 | Michael Hanselmann | " to %s,\nbut this ip address does not"
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296 | 7c4c22f5 | Manuel Franceschini | " belong to this host" %
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297 | debac808 | Iustin Pop | hostname.ip, errors.ECODE_ENVIRON) |
298 | a0c9f010 | Michael Hanselmann | |
299 | 2f20d07b | Manuel Franceschini | clustername = netutils.GetHostname(name=cluster_name, family=ipcls.family) |
300 | a0c9f010 | Michael Hanselmann | |
301 | 2f20d07b | Manuel Franceschini | if netutils.TcpPing(clustername.ip, constants.DEFAULT_NODED_PORT, timeout=5): |
302 | 7c4c22f5 | Manuel Franceschini | raise errors.OpPrereqError("Cluster IP already active", |
303 | debac808 | Iustin Pop | errors.ECODE_NOTUNIQUE) |
304 | a0c9f010 | Michael Hanselmann | |
305 | 2f20d07b | Manuel Franceschini | if not secondary_ip: |
306 | 2f20d07b | Manuel Franceschini | if primary_ip_version == constants.IP6_VERSION:
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307 | 2f20d07b | Manuel Franceschini | raise errors.OpPrereqError("When using a IPv6 primary address, a valid" |
308 | 7c4c22f5 | Manuel Franceschini | " IPv4 address must be given as secondary",
|
309 | 7c4c22f5 | Manuel Franceschini | errors.ECODE_INVAL) |
310 | b9eeeb02 | Michael Hanselmann | secondary_ip = hostname.ip |
311 | a0c9f010 | Michael Hanselmann | |
312 | 2f20d07b | Manuel Franceschini | if not netutils.IP4Address.IsValid(secondary_ip): |
313 | 2f20d07b | Manuel Franceschini | raise errors.OpPrereqError("Secondary IP address (%s) has to be a valid" |
314 | 2f20d07b | Manuel Franceschini | " IPv4 address." % secondary_ip,
|
315 | 2f20d07b | Manuel Franceschini | errors.ECODE_INVAL) |
316 | 2f20d07b | Manuel Franceschini | |
317 | 2f20d07b | Manuel Franceschini | if not netutils.IP4Address.Own(secondary_ip): |
318 | 2f20d07b | Manuel Franceschini | raise errors.OpPrereqError("You gave %s as secondary IP," |
319 | 2f20d07b | Manuel Franceschini | " but it does not belong to this host." %
|
320 | 2f20d07b | Manuel Franceschini | secondary_ip, errors.ECODE_ENVIRON) |
321 | 2f20d07b | Manuel Franceschini | |
322 | a0c9f010 | Michael Hanselmann | if vg_name is not None: |
323 | a0c9f010 | Michael Hanselmann | # Check if volume group is valid
|
324 | a0c9f010 | Michael Hanselmann | vgstatus = utils.CheckVolumeGroupSize(utils.ListVolumeGroups(), vg_name, |
325 | a0c9f010 | Michael Hanselmann | constants.MIN_VG_SIZE) |
326 | a0c9f010 | Michael Hanselmann | if vgstatus:
|
327 | a0c9f010 | Michael Hanselmann | raise errors.OpPrereqError("Error: %s\nspecify --no-lvm-storage if" |
328 | debac808 | Iustin Pop | " you are not using lvm" % vgstatus,
|
329 | debac808 | Iustin Pop | errors.ECODE_INVAL) |
330 | a0c9f010 | Michael Hanselmann | |
331 | a721e23a | Luca Bigliardi | if drbd_helper is not None: |
332 | a721e23a | Luca Bigliardi | try:
|
333 | a721e23a | Luca Bigliardi | curr_helper = bdev.BaseDRBD.GetUsermodeHelper() |
334 | a721e23a | Luca Bigliardi | except errors.BlockDeviceError, err:
|
335 | a721e23a | Luca Bigliardi | raise errors.OpPrereqError("Error while checking drbd helper" |
336 | a721e23a | Luca Bigliardi | " (specify --no-drbd-storage if you are not"
|
337 | a721e23a | Luca Bigliardi | " using drbd): %s" % str(err), |
338 | a721e23a | Luca Bigliardi | errors.ECODE_ENVIRON) |
339 | a721e23a | Luca Bigliardi | if drbd_helper != curr_helper:
|
340 | a721e23a | Luca Bigliardi | raise errors.OpPrereqError("Error: requiring %s as drbd helper but %s" |
341 | a721e23a | Luca Bigliardi | " is the current helper" % (drbd_helper,
|
342 | a721e23a | Luca Bigliardi | curr_helper), |
343 | a721e23a | Luca Bigliardi | errors.ECODE_INVAL) |
344 | a721e23a | Luca Bigliardi | |
345 | 0376655e | Guido Trotter | if constants.ENABLE_FILE_STORAGE:
|
346 | 0376655e | Guido Trotter | file_storage_dir = _InitFileStorage(file_storage_dir) |
347 | 0376655e | Guido Trotter | else:
|
348 | 0376655e | Guido Trotter | file_storage_dir = ""
|
349 | 0376655e | Guido Trotter | |
350 | 0376655e | Guido Trotter | if constants.ENABLE_SHARED_FILE_STORAGE:
|
351 | 0376655e | Guido Trotter | shared_file_storage_dir = _InitFileStorage(shared_file_storage_dir) |
352 | 0376655e | Guido Trotter | else:
|
353 | 0376655e | Guido Trotter | shared_file_storage_dir = ""
|
354 | a0c9f010 | Michael Hanselmann | |
355 | a0c9f010 | Michael Hanselmann | if not re.match("^[0-9a-z]{2}:[0-9a-z]{2}:[0-9a-z]{2}$", mac_prefix): |
356 | debac808 | Iustin Pop | raise errors.OpPrereqError("Invalid mac prefix given '%s'" % mac_prefix, |
357 | debac808 | Iustin Pop | errors.ECODE_INVAL) |
358 | a0c9f010 | Michael Hanselmann | |
359 | a0c9f010 | Michael Hanselmann | result = utils.RunCmd(["ip", "link", "show", "dev", master_netdev]) |
360 | a0c9f010 | Michael Hanselmann | if result.failed:
|
361 | a0c9f010 | Michael Hanselmann | raise errors.OpPrereqError("Invalid master netdev given (%s): '%s'" % |
362 | a0c9f010 | Michael Hanselmann | (master_netdev, |
363 | debac808 | Iustin Pop | result.output.strip()), errors.ECODE_INVAL) |
364 | a0c9f010 | Michael Hanselmann | |
365 | 9dae41ad | Guido Trotter | dirs = [(constants.RUN_GANETI_DIR, constants.RUN_DIRS_MODE)] |
366 | 9dae41ad | Guido Trotter | utils.EnsureDirs(dirs) |
367 | 9dae41ad | Guido Trotter | |
368 | a5728081 | Guido Trotter | utils.ForceDictType(beparams, constants.BES_PARAMETER_TYPES) |
369 | b6a30b0d | Guido Trotter | utils.ForceDictType(nicparams, constants.NICS_PARAMETER_TYPES) |
370 | b6a30b0d | Guido Trotter | objects.NIC.CheckParameterSyntax(nicparams) |
371 | b6a30b0d | Guido Trotter | |
372 | 6204ee71 | Renรฉ Nussbaumer | if ndparams is not None: |
373 | 6204ee71 | Renรฉ Nussbaumer | utils.ForceDictType(ndparams, constants.NDS_PARAMETER_TYPES) |
374 | 6204ee71 | Renรฉ Nussbaumer | else:
|
375 | 6204ee71 | Renรฉ Nussbaumer | ndparams = dict(constants.NDC_DEFAULTS)
|
376 | 6204ee71 | Renรฉ Nussbaumer | |
377 | a5728081 | Guido Trotter | # hvparams is a mapping of hypervisor->hvparams dict
|
378 | a5728081 | Guido Trotter | for hv_name, hv_params in hvparams.iteritems(): |
379 | a5728081 | Guido Trotter | utils.ForceDictType(hv_params, constants.HVS_PARAMETER_TYPES) |
380 | a5728081 | Guido Trotter | hv_class = hypervisor.GetHypervisor(hv_name) |
381 | a5728081 | Guido Trotter | hv_class.CheckParameterSyntax(hv_params) |
382 | d4b72030 | Guido Trotter | |
383 | a0c9f010 | Michael Hanselmann | # set up ssh config and /etc/hosts
|
384 | 13998ef2 | Michael Hanselmann | sshline = utils.ReadFile(constants.SSH_HOST_RSA_PUB) |
385 | a0c9f010 | Michael Hanselmann | sshkey = sshline.split(" ")[1] |
386 | a0c9f010 | Michael Hanselmann | |
387 | b86a6bcd | Guido Trotter | if modify_etc_hosts:
|
388 | ea8ac9c9 | Renรฉ Nussbaumer | utils.AddHostToEtcHosts(hostname.name, hostname.ip) |
389 | b86a6bcd | Guido Trotter | |
390 | b989b9d9 | Ken Wehr | if modify_ssh_setup:
|
391 | b989b9d9 | Ken Wehr | _InitSSHSetup() |
392 | a0c9f010 | Michael Hanselmann | |
393 | bf4af505 | Apollon Oikonomopoulos | if default_iallocator is not None: |
394 | bf4af505 | Apollon Oikonomopoulos | alloc_script = utils.FindFile(default_iallocator, |
395 | bf4af505 | Apollon Oikonomopoulos | constants.IALLOCATOR_SEARCH_PATH, |
396 | bf4af505 | Apollon Oikonomopoulos | os.path.isfile) |
397 | bf4af505 | Apollon Oikonomopoulos | if alloc_script is None: |
398 | bf4af505 | Apollon Oikonomopoulos | raise errors.OpPrereqError("Invalid default iallocator script '%s'" |
399 | bf4af505 | Apollon Oikonomopoulos | " specified" % default_iallocator,
|
400 | bf4af505 | Apollon Oikonomopoulos | errors.ECODE_INVAL) |
401 | d1e9c98d | Iustin Pop | elif constants.HTOOLS:
|
402 | d1e9c98d | Iustin Pop | # htools was enabled at build-time, we default to it
|
403 | d1e9c98d | Iustin Pop | if utils.FindFile(constants.IALLOC_HAIL,
|
404 | d1e9c98d | Iustin Pop | constants.IALLOCATOR_SEARCH_PATH, |
405 | d1e9c98d | Iustin Pop | os.path.isfile): |
406 | d1e9c98d | Iustin Pop | default_iallocator = constants.IALLOC_HAIL |
407 | bf4af505 | Apollon Oikonomopoulos | |
408 | 430b923c | Iustin Pop | now = time.time() |
409 | 430b923c | Iustin Pop | |
410 | a0c9f010 | Michael Hanselmann | # init of cluster config file
|
411 | b9eeeb02 | Michael Hanselmann | cluster_config = objects.Cluster( |
412 | b9eeeb02 | Michael Hanselmann | serial_no=1,
|
413 | b9eeeb02 | Michael Hanselmann | rsahostkeypub=sshkey, |
414 | b9eeeb02 | Michael Hanselmann | highest_used_port=(constants.FIRST_DRBD_PORT - 1),
|
415 | b9eeeb02 | Michael Hanselmann | mac_prefix=mac_prefix, |
416 | b9eeeb02 | Michael Hanselmann | volume_group_name=vg_name, |
417 | b9eeeb02 | Michael Hanselmann | tcpudp_port_pool=set(),
|
418 | f6bd6e98 | Michael Hanselmann | master_node=hostname.name, |
419 | f6bd6e98 | Michael Hanselmann | master_ip=clustername.ip, |
420 | f6bd6e98 | Michael Hanselmann | master_netdev=master_netdev, |
421 | f6bd6e98 | Michael Hanselmann | cluster_name=clustername.name, |
422 | f6bd6e98 | Michael Hanselmann | file_storage_dir=file_storage_dir, |
423 | 4b97f902 | Apollon Oikonomopoulos | shared_file_storage_dir=shared_file_storage_dir, |
424 | ea3a925f | Alexander Schreiber | enabled_hypervisors=enabled_hypervisors, |
425 | 4ef7f423 | Guido Trotter | beparams={constants.PP_DEFAULT: beparams}, |
426 | b6a30b0d | Guido Trotter | nicparams={constants.PP_DEFAULT: nicparams}, |
427 | 6204ee71 | Renรฉ Nussbaumer | ndparams=ndparams, |
428 | ea3a925f | Alexander Schreiber | hvparams=hvparams, |
429 | ce735215 | Guido Trotter | candidate_pool_size=candidate_pool_size, |
430 | 022c3a0b | Guido Trotter | modify_etc_hosts=modify_etc_hosts, |
431 | b989b9d9 | Ken Wehr | modify_ssh_setup=modify_ssh_setup, |
432 | 39b0f0c2 | Balazs Lecz | uid_pool=uid_pool, |
433 | 430b923c | Iustin Pop | ctime=now, |
434 | 430b923c | Iustin Pop | mtime=now, |
435 | 3953242f | Iustin Pop | maintain_node_health=maintain_node_health, |
436 | a721e23a | Luca Bigliardi | drbd_usermode_helper=drbd_helper, |
437 | bf4af505 | Apollon Oikonomopoulos | default_iallocator=default_iallocator, |
438 | 2f20d07b | Manuel Franceschini | primary_ip_family=ipcls.family, |
439 | 3d914585 | Renรฉ Nussbaumer | prealloc_wipe_disks=prealloc_wipe_disks, |
440 | b9eeeb02 | Michael Hanselmann | ) |
441 | b9eeeb02 | Michael Hanselmann | master_node_config = objects.Node(name=hostname.name, |
442 | b9eeeb02 | Michael Hanselmann | primary_ip=hostname.ip, |
443 | b9222f32 | Guido Trotter | secondary_ip=secondary_ip, |
444 | c044f32c | Guido Trotter | serial_no=1,
|
445 | c044f32c | Guido Trotter | master_candidate=True,
|
446 | af64c0ea | Iustin Pop | offline=False, drained=False, |
447 | 435e4bd6 | Michael Hanselmann | ctime=now, mtime=now, |
448 | c044f32c | Guido Trotter | ) |
449 | 9e1333b9 | Guido Trotter | InitConfig(constants.CONFIG_VERSION, cluster_config, master_node_config) |
450 | d367b66c | Manuel Franceschini | cfg = config.ConfigWriter(offline=True)
|
451 | 9e1333b9 | Guido Trotter | ssh.WriteKnownHostsFile(cfg, constants.SSH_KNOWN_HOSTS_FILE) |
452 | a4eae71f | Michael Hanselmann | cfg.Update(cfg.GetClusterInfo(), logging.error) |
453 | d367b66c | Manuel Franceschini | backend.WriteSsconfFiles(cfg.GetSsconfValues()) |
454 | d367b66c | Manuel Franceschini | |
455 | d367b66c | Manuel Franceschini | # set up the inter-node password and certificate
|
456 | d367b66c | Manuel Franceschini | _InitGanetiServerSetup(hostname.name) |
457 | 827f753e | Guido Trotter | |
458 | 952d7515 | Michael Hanselmann | logging.debug("Starting daemons")
|
459 | 952d7515 | Michael Hanselmann | result = utils.RunCmd([constants.DAEMON_UTIL, "start-all"])
|
460 | 952d7515 | Michael Hanselmann | if result.failed:
|
461 | 952d7515 | Michael Hanselmann | raise errors.OpExecError("Could not start daemons, command %s" |
462 | 952d7515 | Michael Hanselmann | " had exitcode %s and error %s" %
|
463 | 952d7515 | Michael Hanselmann | (result.cmd, result.exit_code, result.output)) |
464 | b3f1cf6f | Iustin Pop | |
465 | 3b6b6129 | Michael Hanselmann | _WaitForMasterDaemon() |
466 | b3f1cf6f | Iustin Pop | |
467 | b1b6ea87 | Iustin Pop | |
468 | 02f99608 | Oleksiy Mishchenko | def InitConfig(version, cluster_config, master_node_config, |
469 | 02f99608 | Oleksiy Mishchenko | cfg_file=constants.CLUSTER_CONF_FILE): |
470 | 7b3a8fb5 | Iustin Pop | """Create the initial cluster configuration.
|
471 | 7b3a8fb5 | Iustin Pop |
|
472 | 7b3a8fb5 | Iustin Pop | It will contain the current node, which will also be the master
|
473 | 7b3a8fb5 | Iustin Pop | node, and no instances.
|
474 | 7b3a8fb5 | Iustin Pop |
|
475 | 7b3a8fb5 | Iustin Pop | @type version: int
|
476 | c41eea6e | Iustin Pop | @param version: configuration version
|
477 | c41eea6e | Iustin Pop | @type cluster_config: L{objects.Cluster}
|
478 | c41eea6e | Iustin Pop | @param cluster_config: cluster configuration
|
479 | c41eea6e | Iustin Pop | @type master_node_config: L{objects.Node}
|
480 | c41eea6e | Iustin Pop | @param master_node_config: master node configuration
|
481 | c41eea6e | Iustin Pop | @type cfg_file: string
|
482 | c41eea6e | Iustin Pop | @param cfg_file: configuration file path
|
483 | c41eea6e | Iustin Pop |
|
484 | 7b3a8fb5 | Iustin Pop | """
|
485 | 88b92fe3 | Guido Trotter | uuid_generator = config.TemporaryReservationManager() |
486 | 88b92fe3 | Guido Trotter | cluster_config.uuid = uuid_generator.Generate([], utils.NewUUID, |
487 | 88b92fe3 | Guido Trotter | _INITCONF_ECID) |
488 | 88b92fe3 | Guido Trotter | master_node_config.uuid = uuid_generator.Generate([], utils.NewUUID, |
489 | 88b92fe3 | Guido Trotter | _INITCONF_ECID) |
490 | 7b3a8fb5 | Iustin Pop | nodes = { |
491 | 7b3a8fb5 | Iustin Pop | master_node_config.name: master_node_config, |
492 | 7b3a8fb5 | Iustin Pop | } |
493 | 88b92fe3 | Guido Trotter | default_nodegroup = objects.NodeGroup( |
494 | 88b92fe3 | Guido Trotter | uuid=uuid_generator.Generate([], utils.NewUUID, _INITCONF_ECID), |
495 | 75cf411a | Adeodato Simo | name=constants.INITIAL_NODE_GROUP_NAME, |
496 | 88b92fe3 | Guido Trotter | members=[master_node_config.name], |
497 | 88b92fe3 | Guido Trotter | ) |
498 | 88b92fe3 | Guido Trotter | nodegroups = { |
499 | 88b92fe3 | Guido Trotter | default_nodegroup.uuid: default_nodegroup, |
500 | 88b92fe3 | Guido Trotter | } |
501 | d693c864 | Iustin Pop | now = time.time() |
502 | 7b3a8fb5 | Iustin Pop | config_data = objects.ConfigData(version=version, |
503 | 7b3a8fb5 | Iustin Pop | cluster=cluster_config, |
504 | 88b92fe3 | Guido Trotter | nodegroups=nodegroups, |
505 | 7b3a8fb5 | Iustin Pop | nodes=nodes, |
506 | 7b3a8fb5 | Iustin Pop | instances={}, |
507 | d693c864 | Iustin Pop | serial_no=1,
|
508 | d693c864 | Iustin Pop | ctime=now, mtime=now) |
509 | a33848a5 | Guido Trotter | utils.WriteFile(cfg_file, |
510 | a33848a5 | Guido Trotter | data=serializer.Dump(config_data.ToDict()), |
511 | a33848a5 | Guido Trotter | mode=0600)
|
512 | 02f99608 | Oleksiy Mishchenko | |
513 | 02f99608 | Oleksiy Mishchenko | |
514 | 140aa4a8 | Iustin Pop | def FinalizeClusterDestroy(master): |
515 | 140aa4a8 | Iustin Pop | """Execute the last steps of cluster destroy
|
516 | 140aa4a8 | Iustin Pop |
|
517 | 140aa4a8 | Iustin Pop | This function shuts down all the daemons, completing the destroy
|
518 | 140aa4a8 | Iustin Pop | begun in cmdlib.LUDestroyOpcode.
|
519 | 140aa4a8 | Iustin Pop |
|
520 | 140aa4a8 | Iustin Pop | """
|
521 | b989b9d9 | Ken Wehr | cfg = config.ConfigWriter() |
522 | b989b9d9 | Ken Wehr | modify_ssh_setup = cfg.GetClusterInfo().modify_ssh_setup |
523 | 781de953 | Iustin Pop | result = rpc.RpcRunner.call_node_stop_master(master, True)
|
524 | 3cebe102 | Michael Hanselmann | msg = result.fail_msg |
525 | 6c00d19a | Iustin Pop | if msg:
|
526 | 099c52ad | Iustin Pop | logging.warning("Could not disable the master role: %s", msg)
|
527 | b989b9d9 | Ken Wehr | result = rpc.RpcRunner.call_node_leave_cluster(master, modify_ssh_setup) |
528 | 3cebe102 | Michael Hanselmann | msg = result.fail_msg |
529 | 0623d351 | Iustin Pop | if msg:
|
530 | 0623d351 | Iustin Pop | logging.warning("Could not shutdown the node daemon and cleanup"
|
531 | 0623d351 | Iustin Pop | " the node: %s", msg)
|
532 | 140aa4a8 | Iustin Pop | |
533 | 140aa4a8 | Iustin Pop | |
534 | 87622829 | Iustin Pop | def SetupNodeDaemon(cluster_name, node, ssh_key_check): |
535 | 827f753e | Guido Trotter | """Add a node to the cluster.
|
536 | 827f753e | Guido Trotter |
|
537 | b1b6ea87 | Iustin Pop | This function must be called before the actual opcode, and will ssh
|
538 | b1b6ea87 | Iustin Pop | to the remote node, copy the needed files, and start ganeti-noded,
|
539 | b1b6ea87 | Iustin Pop | allowing the master to do the rest via normal rpc calls.
|
540 | 827f753e | Guido Trotter |
|
541 | 87622829 | Iustin Pop | @param cluster_name: the cluster name
|
542 | 87622829 | Iustin Pop | @param node: the name of the new node
|
543 | 87622829 | Iustin Pop | @param ssh_key_check: whether to do a strict key check
|
544 | 827f753e | Guido Trotter |
|
545 | 827f753e | Guido Trotter | """
|
546 | b43dcc5a | Manuel Franceschini | family = ssconf.SimpleStore().GetPrimaryIPFamily() |
547 | b43dcc5a | Manuel Franceschini | sshrunner = ssh.SshRunner(cluster_name, |
548 | 72729d6e | Michael Hanselmann | ipv6=(family == netutils.IP6Address.family)) |
549 | 827f753e | Guido Trotter | |
550 | b43dcc5a | Manuel Franceschini | bind_address = constants.IP4_ADDRESS_ANY |
551 | b43dcc5a | Manuel Franceschini | if family == netutils.IP6Address.family:
|
552 | b43dcc5a | Manuel Franceschini | bind_address = constants.IP6_ADDRESS_ANY |
553 | b43dcc5a | Manuel Franceschini | |
554 | 827f753e | Guido Trotter | # set up inter-node password and certificate and restarts the node daemon
|
555 | 827f753e | Guido Trotter | # and then connect with ssh to set password and start ganeti-noded
|
556 | 827f753e | Guido Trotter | # note that all the below variables are sanitized at this point,
|
557 | 827f753e | Guido Trotter | # either by being constants or by the checks above
|
558 | 9294514d | Renรฉ Nussbaumer | sshrunner.CopyFileToNode(node, constants.NODED_CERT_FILE) |
559 | 9294514d | Renรฉ Nussbaumer | sshrunner.CopyFileToNode(node, constants.RAPI_CERT_FILE) |
560 | 9294514d | Renรฉ Nussbaumer | sshrunner.CopyFileToNode(node, constants.CONFD_HMAC_KEY) |
561 | 72729d6e | Michael Hanselmann | mycommand = ("%s stop-all; %s start %s -b %s" %
|
562 | 72729d6e | Michael Hanselmann | (constants.DAEMON_UTIL, constants.DAEMON_UTIL, constants.NODED, |
563 | 72729d6e | Michael Hanselmann | utils.ShellQuote(bind_address))) |
564 | 827f753e | Guido Trotter | |
565 | c4b6c29c | Michael Hanselmann | result = sshrunner.Run(node, 'root', mycommand, batch=False, |
566 | c4b6c29c | Michael Hanselmann | ask_key=ssh_key_check, |
567 | 9294514d | Renรฉ Nussbaumer | use_cluster_key=True,
|
568 | c4b6c29c | Michael Hanselmann | strict_host_check=ssh_key_check) |
569 | 827f753e | Guido Trotter | if result.failed:
|
570 | 827f753e | Guido Trotter | raise errors.OpExecError("Remote command on node %s, error: %s," |
571 | 827f753e | Guido Trotter | " output: %s" %
|
572 | 827f753e | Guido Trotter | (node, result.fail_reason, result.output)) |
573 | 827f753e | Guido Trotter | |
574 | 5627f375 | Michael Hanselmann | _WaitForNodeDaemon(node) |
575 | 5627f375 | Michael Hanselmann | |
576 | b1b6ea87 | Iustin Pop | |
577 | 8e2524c3 | Guido Trotter | def MasterFailover(no_voting=False): |
578 | b1b6ea87 | Iustin Pop | """Failover the master node.
|
579 | b1b6ea87 | Iustin Pop |
|
580 | b1b6ea87 | Iustin Pop | This checks that we are not already the master, and will cause the
|
581 | b1b6ea87 | Iustin Pop | current master to cease being master, and the non-master to become
|
582 | b1b6ea87 | Iustin Pop | new master.
|
583 | b1b6ea87 | Iustin Pop |
|
584 | 8e2524c3 | Guido Trotter | @type no_voting: boolean
|
585 | 8e2524c3 | Guido Trotter | @param no_voting: force the operation without remote nodes agreement
|
586 | 8e2524c3 | Guido Trotter | (dangerous)
|
587 | 8e2524c3 | Guido Trotter |
|
588 | b1b6ea87 | Iustin Pop | """
|
589 | 8135a2db | Iustin Pop | sstore = ssconf.SimpleStore() |
590 | b1b6ea87 | Iustin Pop | |
591 | 8135a2db | Iustin Pop | old_master, new_master = ssconf.GetMasterAndMyself(sstore) |
592 | 8135a2db | Iustin Pop | node_list = sstore.GetNodeList() |
593 | 8135a2db | Iustin Pop | mc_list = sstore.GetMasterCandidates() |
594 | b1b6ea87 | Iustin Pop | |
595 | b1b6ea87 | Iustin Pop | if old_master == new_master:
|
596 | b1b6ea87 | Iustin Pop | raise errors.OpPrereqError("This commands must be run on the node" |
597 | b1b6ea87 | Iustin Pop | " where you want the new master to be."
|
598 | b1b6ea87 | Iustin Pop | " %s is already the master" %
|
599 | debac808 | Iustin Pop | old_master, errors.ECODE_INVAL) |
600 | d5927e48 | Iustin Pop | |
601 | 8135a2db | Iustin Pop | if new_master not in mc_list: |
602 | 8135a2db | Iustin Pop | mc_no_master = [name for name in mc_list if name != old_master] |
603 | 8135a2db | Iustin Pop | raise errors.OpPrereqError("This node is not among the nodes marked" |
604 | 8135a2db | Iustin Pop | " as master candidates. Only these nodes"
|
605 | 8135a2db | Iustin Pop | " can become masters. Current list of"
|
606 | 8135a2db | Iustin Pop | " master candidates is:\n"
|
607 | debac808 | Iustin Pop | "%s" % ('\n'.join(mc_no_master)), |
608 | debac808 | Iustin Pop | errors.ECODE_STATE) |
609 | 8135a2db | Iustin Pop | |
610 | 8e2524c3 | Guido Trotter | if not no_voting: |
611 | 8e2524c3 | Guido Trotter | vote_list = GatherMasterVotes(node_list) |
612 | 8e2524c3 | Guido Trotter | |
613 | 8e2524c3 | Guido Trotter | if vote_list:
|
614 | 8e2524c3 | Guido Trotter | voted_master = vote_list[0][0] |
615 | 8e2524c3 | Guido Trotter | if voted_master is None: |
616 | 8e2524c3 | Guido Trotter | raise errors.OpPrereqError("Cluster is inconsistent, most nodes did" |
617 | debac808 | Iustin Pop | " not respond.", errors.ECODE_ENVIRON)
|
618 | 8e2524c3 | Guido Trotter | elif voted_master != old_master:
|
619 | 8e2524c3 | Guido Trotter | raise errors.OpPrereqError("I have a wrong configuration, I believe" |
620 | 8e2524c3 | Guido Trotter | " the master is %s but the other nodes"
|
621 | 8e2524c3 | Guido Trotter | " voted %s. Please resync the configuration"
|
622 | 8e2524c3 | Guido Trotter | " of this node." %
|
623 | debac808 | Iustin Pop | (old_master, voted_master), |
624 | debac808 | Iustin Pop | errors.ECODE_STATE) |
625 | b1b6ea87 | Iustin Pop | # end checks
|
626 | b1b6ea87 | Iustin Pop | |
627 | b1b6ea87 | Iustin Pop | rcode = 0
|
628 | b1b6ea87 | Iustin Pop | |
629 | d5927e48 | Iustin Pop | logging.info("Setting master to %s, old master: %s", new_master, old_master)
|
630 | b1b6ea87 | Iustin Pop | |
631 | 21004460 | Iustin Pop | try:
|
632 | 21004460 | Iustin Pop | # instantiate a real config writer, as we now know we have the
|
633 | 21004460 | Iustin Pop | # configuration data
|
634 | eb180fe2 | Iustin Pop | cfg = config.ConfigWriter(accept_foreign=True)
|
635 | 21004460 | Iustin Pop | |
636 | 21004460 | Iustin Pop | cluster_info = cfg.GetClusterInfo() |
637 | 21004460 | Iustin Pop | cluster_info.master_node = new_master |
638 | 21004460 | Iustin Pop | # this will also regenerate the ssconf files, since we updated the
|
639 | 21004460 | Iustin Pop | # cluster info
|
640 | 21004460 | Iustin Pop | cfg.Update(cluster_info, logging.error) |
641 | 21004460 | Iustin Pop | except errors.ConfigurationError, err:
|
642 | 21004460 | Iustin Pop | logging.error("Error while trying to set the new master: %s",
|
643 | 21004460 | Iustin Pop | str(err))
|
644 | 21004460 | Iustin Pop | return 1 |
645 | 21004460 | Iustin Pop | |
646 | 21004460 | Iustin Pop | # if cfg.Update worked, then it means the old master daemon won't be
|
647 | 21004460 | Iustin Pop | # able now to write its own config file (we rely on locking in both
|
648 | 21004460 | Iustin Pop | # backend.UploadFile() and ConfigWriter._Write(); hence the next
|
649 | 21004460 | Iustin Pop | # step is to kill the old master
|
650 | 21004460 | Iustin Pop | |
651 | 21004460 | Iustin Pop | logging.info("Stopping the master daemon on node %s", old_master)
|
652 | 21004460 | Iustin Pop | |
653 | 781de953 | Iustin Pop | result = rpc.RpcRunner.call_node_stop_master(old_master, True)
|
654 | 3cebe102 | Michael Hanselmann | msg = result.fail_msg |
655 | 6c00d19a | Iustin Pop | if msg:
|
656 | d5927e48 | Iustin Pop | logging.error("Could not disable the master role on the old master"
|
657 | 6c00d19a | Iustin Pop | " %s, please disable manually: %s", old_master, msg)
|
658 | b1b6ea87 | Iustin Pop | |
659 | 21004460 | Iustin Pop | logging.info("Checking master IP non-reachability...")
|
660 | 21004460 | Iustin Pop | |
661 | 425f0f54 | Iustin Pop | master_ip = sstore.GetMasterIP() |
662 | 425f0f54 | Iustin Pop | total_timeout = 30
|
663 | e687ec01 | Michael Hanselmann | |
664 | d23ef431 | Michael Hanselmann | # Here we have a phase where no master should be running
|
665 | 425f0f54 | Iustin Pop | def _check_ip(): |
666 | a744b676 | Manuel Franceschini | if netutils.TcpPing(master_ip, constants.DEFAULT_NODED_PORT):
|
667 | 425f0f54 | Iustin Pop | raise utils.RetryAgain()
|
668 | 425f0f54 | Iustin Pop | |
669 | 425f0f54 | Iustin Pop | try:
|
670 | 425f0f54 | Iustin Pop | utils.Retry(_check_ip, (1, 1.5, 5), total_timeout) |
671 | 425f0f54 | Iustin Pop | except utils.RetryTimeout:
|
672 | 425f0f54 | Iustin Pop | logging.warning("The master IP is still reachable after %s seconds,"
|
673 | 425f0f54 | Iustin Pop | " continuing but activating the master on the current"
|
674 | 425f0f54 | Iustin Pop | " node will probably fail", total_timeout)
|
675 | b1b6ea87 | Iustin Pop | |
676 | ff699aa9 | Michael Hanselmann | if jstore.CheckDrainFlag():
|
677 | ff699aa9 | Michael Hanselmann | logging.info("Undraining job queue")
|
678 | ff699aa9 | Michael Hanselmann | jstore.SetDrainFlag(False)
|
679 | ff699aa9 | Michael Hanselmann | |
680 | 21004460 | Iustin Pop | logging.info("Starting the master daemons on the new master")
|
681 | d5927e48 | Iustin Pop | |
682 | 3583908a | Guido Trotter | result = rpc.RpcRunner.call_node_start_master(new_master, True, no_voting)
|
683 | 3cebe102 | Michael Hanselmann | msg = result.fail_msg |
684 | b726aff0 | Iustin Pop | if msg:
|
685 | d5927e48 | Iustin Pop | logging.error("Could not start the master role on the new master"
|
686 | b726aff0 | Iustin Pop | " %s, please check: %s", new_master, msg)
|
687 | b1b6ea87 | Iustin Pop | rcode = 1
|
688 | b1b6ea87 | Iustin Pop | |
689 | 21004460 | Iustin Pop | logging.info("Master failed over from %s to %s", old_master, new_master)
|
690 | b1b6ea87 | Iustin Pop | return rcode
|
691 | d7cdb55d | Iustin Pop | |
692 | d7cdb55d | Iustin Pop | |
693 | 8eb148ae | Iustin Pop | def GetMaster(): |
694 | 8eb148ae | Iustin Pop | """Returns the current master node.
|
695 | 8eb148ae | Iustin Pop |
|
696 | 8eb148ae | Iustin Pop | This is a separate function in bootstrap since it's needed by
|
697 | 8eb148ae | Iustin Pop | gnt-cluster, and instead of importing directly ssconf, it's better
|
698 | 8eb148ae | Iustin Pop | to abstract it in bootstrap, where we do use ssconf in other
|
699 | 8eb148ae | Iustin Pop | functions too.
|
700 | 8eb148ae | Iustin Pop |
|
701 | 8eb148ae | Iustin Pop | """
|
702 | 8eb148ae | Iustin Pop | sstore = ssconf.SimpleStore() |
703 | 8eb148ae | Iustin Pop | |
704 | 8eb148ae | Iustin Pop | old_master, _ = ssconf.GetMasterAndMyself(sstore) |
705 | 8eb148ae | Iustin Pop | |
706 | 8eb148ae | Iustin Pop | return old_master
|
707 | 8eb148ae | Iustin Pop | |
708 | 8eb148ae | Iustin Pop | |
709 | d7cdb55d | Iustin Pop | def GatherMasterVotes(node_list): |
710 | d7cdb55d | Iustin Pop | """Check the agreement on who is the master.
|
711 | d7cdb55d | Iustin Pop |
|
712 | d7cdb55d | Iustin Pop | This function will return a list of (node, number of votes), ordered
|
713 | d7cdb55d | Iustin Pop | by the number of votes. Errors will be denoted by the key 'None'.
|
714 | d7cdb55d | Iustin Pop |
|
715 | d7cdb55d | Iustin Pop | Note that the sum of votes is the number of nodes this machine
|
716 | d7cdb55d | Iustin Pop | knows, whereas the number of entries in the list could be different
|
717 | d7cdb55d | Iustin Pop | (if some nodes vote for another master).
|
718 | d7cdb55d | Iustin Pop |
|
719 | d7cdb55d | Iustin Pop | We remove ourselves from the list since we know that (bugs aside)
|
720 | d7cdb55d | Iustin Pop | since we use the same source for configuration information for both
|
721 | d7cdb55d | Iustin Pop | backend and boostrap, we'll always vote for ourselves.
|
722 | d7cdb55d | Iustin Pop |
|
723 | d7cdb55d | Iustin Pop | @type node_list: list
|
724 | d7cdb55d | Iustin Pop | @param node_list: the list of nodes to query for master info; the current
|
725 | 5bbd3f7f | Michael Hanselmann | node will be removed if it is in the list
|
726 | d7cdb55d | Iustin Pop | @rtype: list
|
727 | d7cdb55d | Iustin Pop | @return: list of (node, votes)
|
728 | d7cdb55d | Iustin Pop |
|
729 | d7cdb55d | Iustin Pop | """
|
730 | b705c7a6 | Manuel Franceschini | myself = netutils.Hostname.GetSysName() |
731 | d7cdb55d | Iustin Pop | try:
|
732 | d7cdb55d | Iustin Pop | node_list.remove(myself) |
733 | d7cdb55d | Iustin Pop | except ValueError: |
734 | d7cdb55d | Iustin Pop | pass
|
735 | d7cdb55d | Iustin Pop | if not node_list: |
736 | d7cdb55d | Iustin Pop | # no nodes left (eventually after removing myself)
|
737 | d7cdb55d | Iustin Pop | return []
|
738 | d7cdb55d | Iustin Pop | results = rpc.RpcRunner.call_master_info(node_list) |
739 | d7cdb55d | Iustin Pop | if not isinstance(results, dict): |
740 | d7cdb55d | Iustin Pop | # this should not happen (unless internal error in rpc)
|
741 | d7cdb55d | Iustin Pop | logging.critical("Can't complete rpc call, aborting master startup")
|
742 | d7cdb55d | Iustin Pop | return [(None, len(node_list))] |
743 | d7cdb55d | Iustin Pop | votes = {} |
744 | d7cdb55d | Iustin Pop | for node in results: |
745 | 781de953 | Iustin Pop | nres = results[node] |
746 | 2a52a064 | Iustin Pop | data = nres.payload |
747 | 3cebe102 | Michael Hanselmann | msg = nres.fail_msg |
748 | 2a52a064 | Iustin Pop | fail = False
|
749 | 2a52a064 | Iustin Pop | if msg:
|
750 | 2a52a064 | Iustin Pop | logging.warning("Error contacting node %s: %s", node, msg)
|
751 | 2a52a064 | Iustin Pop | fail = True
|
752 | d8e0caa6 | Manuel Franceschini | # for now we accept both length 3 and 4 (data[3] is primary ip version)
|
753 | 2a52a064 | Iustin Pop | elif not isinstance(data, (tuple, list)) or len(data) < 3: |
754 | 2a52a064 | Iustin Pop | logging.warning("Invalid data received from node %s: %s", node, data)
|
755 | 2a52a064 | Iustin Pop | fail = True
|
756 | 2a52a064 | Iustin Pop | if fail:
|
757 | d7cdb55d | Iustin Pop | if None not in votes: |
758 | d7cdb55d | Iustin Pop | votes[None] = 0 |
759 | d7cdb55d | Iustin Pop | votes[None] += 1 |
760 | d7cdb55d | Iustin Pop | continue
|
761 | 781de953 | Iustin Pop | master_node = data[2]
|
762 | d7cdb55d | Iustin Pop | if master_node not in votes: |
763 | d7cdb55d | Iustin Pop | votes[master_node] = 0
|
764 | d7cdb55d | Iustin Pop | votes[master_node] += 1
|
765 | d7cdb55d | Iustin Pop | |
766 | d7cdb55d | Iustin Pop | vote_list = [v for v in votes.items()] |
767 | d7cdb55d | Iustin Pop | # sort first on number of votes then on name, since we want None
|
768 | d7cdb55d | Iustin Pop | # sorted later if we have the half of the nodes not responding, and
|
769 | d7cdb55d | Iustin Pop | # half voting all for the same master
|
770 | d7cdb55d | Iustin Pop | vote_list.sort(key=lambda x: (x[1], x[0]), reverse=True) |
771 | d7cdb55d | Iustin Pop | |
772 | d7cdb55d | Iustin Pop | return vote_list |