/usr/lib/stonith/plugins/external/dracmc-telnet is in cluster-glue 1.0.12-5.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 | #!/usr/bin/env python
# vim: set filetype=python
#######################################################################
#
# dracmc-telnet - External stonith plugin for HAv2 (http://linux-ha.org/wiki)
# Connects to Dell Drac/MC Blade Enclosure via a Cyclades
# terminal server with telnet and switches power of named
# blade servers appropriatelly.
#
# Required parameters:
# nodename: The name of the server you want to touch on your network
# cyclades_ip: The IP address of the cyclades terminal server
# cyclades_port: The port for telnet to access on the cyclades (i.e. 7032)
# servername: The DRAC/MC server name of the blade (i.e. Server-7)
# username: The login user name for the DRAC/MC
# password: The login password for the DRAC/MC
#
# Author: Alex Tsariounov <alext@novell.com>
#
# Based on ibmrsa-telnet external stonith plugin by Andreas Mock
# (andreas.mock@web.de), Copyright by Adreas Mock and released as part
# of HAv2.
#
# History:
# 2009-10-12 First release.
#
# Copyright (c) 2009 Novell, Inc.
# All Rights Reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 or later of the GNU General Public
# License as published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# Further, this software is distributed without any warranty that it is
# free of the rightful claim of any third person regarding infringement
# or the like. Any license provided herein, whether implied or
# otherwise, applies only to this software file. Patent licenses, if
# any, provided herein do not apply to combinations of this program with
# other software, or any other product whatsoever.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
#
#######################################################################
import sys
import os
import time
import telnetlib
import random
import subprocess
LOGINRETRIES = 10
class TimeoutException(Exception):
def __init__(self, value=None):
Exception.__init__(self)
self.value = value
def __str__(self):
return repr(self.value)
class DracMC(telnetlib.Telnet):
def __init__(self, *args, **kwargs):
telnetlib.Telnet.__init__(self)
self._timeout = 4
self._loggedin = 0
self._history = []
self._appl = os.path.basename(sys.argv[0])
self._server = args[0]
def _get_timestamp(self):
ct = time.time()
msecs = (ct - long(ct)) * 1000
return "%s,%03d" % (time.strftime("%Y-%m-%d %H:%M:%S",
time.localtime(ct)), msecs)
def write(self, buffer):
self._history.append(self._get_timestamp() + ': WRITE: ' + repr(buffer))
telnetlib.Telnet.write(self, buffer)
def read_until(self, what, timeout=2):
line = telnetlib.Telnet.read_until(self, what, timeout)
self._history.append(self._get_timestamp() + ': READ : ' + repr(line))
if not line.endswith(what):
raise TimeoutException("Timeout while waiting for '%s'." % (what, ))
return line
def login(self, user, passwd):
time.sleep(0.3)
try:
line = self.read_until('Login: ', self._timeout)
self.write(user)
self.write('\r')
line = self.read_until('Password: ', self._timeout)
self.write(passwd)
self.write('\r')
except:
self.write("\r")
line = self.read_until('Login: ', self._timeout)
self.write(user)
self.write('\r')
line = self.read_until('Password: ', self._timeout)
self.write(passwd)
self.write('\r')
try:
line = self.read_until('DRAC/MC:', self._timeout)
except:
self.write("\r")
line = self.read_until('DRAC/MC:', self._timeout)
def hardreset(self):
self.write('serveraction -s %s hardreset\r' % self._server)
line = self.read_until('OK', 10)
line = self.read_until('DRAC/MC:', self._timeout)
def powercycle(self):
self.write('serveraction -s %s powercycle\r' % self._server)
line = self.read_until('OK', 10)
line = self.read_until('DRAC/MC:', self._timeout)
def on(self):
self.write('serveraction -s %s powerup\r' % self._server)
line = self.read_until('OK', 10)
line = self.read_until('DRAC/MC:', self._timeout)
def off(self):
self.write('serveraction -s %s powerdown\r' % self._server)
line = self.read_until('OK', 10)
line = self.read_until('DRAC/MC:', self._timeout)
def exit(self):
self.write('exit\r')
def get_history(self):
return "\n".join(self._history)
class DracMCStonithPlugin:
def __init__(self):
# define the external stonith plugin api
self._required_cmds = \
'reset gethosts status getconfignames getinfo-devid ' \
'getinfo-devname getinfo-devdescr getinfo-devurl ' \
'getinfo-xml'
self._optional_cmds = 'on off'
self._required_cmds_list = self._required_cmds.split()
self._optional_cmds_list = self._optional_cmds.split()
# who am i
self._appl = os.path.basename(sys.argv[0])
# telnet connection object
self._connection = None
# the list of configuration names
self._confignames = ['nodename', 'cyclades_ip', 'cyclades_port',
'servername', 'username', 'password']
# catch the parameters provided by environment
self._parameters = {}
for name in self._confignames:
try:
self._parameters[name] = os.environ.get(name, '').split()[0]
except IndexError:
self._parameters[name] = ''
def _get_timestamp(self):
ct = time.time()
msecs = (ct - long(ct)) * 1000
return "%s,%03d" % (time.strftime("%Y-%m-%d %H:%M:%S",
time.localtime(ct)), msecs)
def _echo_debug(self, *args):
subprocess.call("ha_log.sh debug '%s'" % ' '.join(args), shell=True)
def echo(self, *args):
what = ''.join([str(x) for x in args])
sys.stdout.write(what)
sys.stdout.write('\n')
sys.stdout.flush()
self._echo_debug("STDOUT:", what)
def echo_log(self, level, *args):
subprocess.call("ha_log.sh %s '%s'" % (level,' '.join(args)), shell=True)
def _get_connection(self):
if not self._connection:
c = DracMC(self._parameters['servername'])
self._echo_debug("Connecting to '%s:%s'" %
(self._parameters['cyclades_ip'],
self._parameters['cyclades_port']))
tries = 0
while tries < LOGINRETRIES:
try:
c.open(self._parameters['cyclades_ip'],
self._parameters['cyclades_port'])
c.login(self._parameters['username'],
self._parameters['password'])
except Exception, args:
if "Connection reset by peer" in str(args):
self._echo_debug("Someone is already logged in... retry=%s" % tries)
c.close()
time.sleep(random.uniform(1.0, 5.0))
else:
raise
else:
break
tries += 1
if tries == LOGINRETRIES:
c.close()
raise Exception("Could not log in to %s:%s" %
(self._parameters['cyclades_ip'],
self._parameters['cyclades_port']))
self._connection = c
def _end_connection(self):
if self._connection:
self._connection.exit()
self._connection.close()
def reset(self):
self._get_connection()
# self._connection.hardreset()
self._connection.powercycle()
self._end_connection()
self._echo_debug(self._connection.get_history())
self.echo_log("info", "Reset of node '%s' done" %
(self._parameters['nodename'],))
return(0)
def on(self):
self._get_connection()
self._connection.on()
self._end_connection()
self._echo_debug(self._connection.get_history())
self.echo_log("info", "Switched node '%s' ON" %
(self._parameters['nodename'],))
return(0)
def off(self):
self._get_connection()
self._connection.off()
self._end_connection()
self._echo_debug(self._connection.get_history())
self.echo_log("info", "Switched node '%s' OFF" %
(self._parameters['nodename'],))
return(0)
def gethosts(self):
self.echo(self._parameters['nodename'])
return(0)
def status(self):
self._get_connection()
self._end_connection()
self._echo_debug(self._connection.get_history())
return(0)
def getconfignames(self):
for name in ['nodename', 'cyclades_ip', 'cyclades_port', 'servername',
'username', 'password']:
self.echo(name)
return(0)
def getinfo_devid(self):
self.echo("External Stonith Plugin for Dell DRAC/MC via Cyclades")
return(0)
def getinfo_devname(self):
self.echo("External Stonith Plugin for Dell Drac/MC connecting "
"via Telnet to a Cyclades port")
return(0)
def getinfo_devdescr(self):
self.echo("External stonith plugin for HAv2 which connects to "
"a Dell DRAC/MC connected via a Cyclades port with telnet. "
"Commands to turn on/off power and to reset server are sent "
"appropriately. "
"(c) 2009 by Novell, Inc. (alext@novell.com)")
return(0)
def getinfo_devurl(self):
self.echo("http://support.dell.com/support/edocs/software/smdrac3/dracmc/1.3/en/index.htm")
def getinfo_xml(self):
info = """<parameters>
<parameter name="nodename" unique="1" required="1">
<content type="string" />
<shortdesc lang="en">nodename to shoot</shortdesc>
<longdesc lang="en">
Name of the node to be stonithed.
</longdesc>
</parameter>
<parameter name="cyclades_ip" unique="1" required="1">
<content type="string" />
<shortdesc lang="en">hostname or ip address of cyclades</shortdesc>
<longdesc lang="en">
Hostname or IP address of Cyclades connected to DRAC/MC.
</longdesc>
</parameter>
<parameter name="cyclades_port" unique="1" required="1">
<content type="string" />
<shortdesc lang="en">telnet port to use on cyclades</shortdesc>
<longdesc lang="en">
Port used with the Cyclades telnet interface which is connected to the DRAC/MC.
</longdesc>
</parameter>
<parameter name="servername" unique="1" required="1">
<content type="string" />
<shortdesc lang="en">DRAC/MC name of blade to be stonithed</shortdesc>
<longdesc lang="en">
Name of server blade to be stonithed on the DRAC/MC (example: Server-7)
</longdesc>
</parameter>
<parameter name="username" unique="1" required="1">
<content type="string" />
<shortdesc lang="en">username to login on the DRAC/MC</shortdesc>
<longdesc lang="en">
Username to login to the DRAC/MC once connected via the Cyclades port.
</longdesc>
</parameter>
<parameter name="password" unique="1" required="1">
<content type="string" />
<shortdesc lang="en">password to login on the DRAC/MC</shortdesc>
<longdesc lang="en">
Password to login to the DRAC/MC once connected via the Cyclades port.
</longdesc>
</parameter>
</parameters>
"""
self.echo(info)
return(0)
def not_implemented(self, cmd):
self.echo_log("err", "Command '%s' not implemented." % (cmd,))
return(1)
def usage(self):
usage = "Call me with one of the allowed commands: %s, %s" % (
', '.join(self._required_cmds_list),
', '.join(self._optional_cmds_list))
return usage
def process(self, argv):
self._echo_debug("========== Start =============")
if len(argv) < 1:
self.echo_log("err", 'At least one commandline argument required.')
return(1)
cmd = argv[0]
self._echo_debug("cmd:", cmd)
if cmd not in self._required_cmds_list and \
cmd not in self._optional_cmds_list:
self.echo_log("err", "Command '%s' not supported." % (cmd,))
return(1)
try:
cmd = cmd.lower().replace('-', '_')
func = getattr(self, cmd, self.not_implemented)
rc = func()
return(rc)
except Exception, args:
self.echo_log("err", 'Exception raised:', str(args))
if self._connection:
self.echo_log("err", self._connection.get_history())
self._connection.close()
return(1)
if __name__ == '__main__':
stonith = DracMCStonithPlugin()
rc = stonith.process(sys.argv[1:])
sys.exit(rc)
|