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fence_drac5.py

#!/usr/bin/python

#####
##
## The Following Agent Has Been Tested On:
##
##  DRAC Version       Firmware
## +-----------------+---------------------------+
##  DRAC 5             1.0  (Build 06.05.12)
##  DRAC 5             1.21 (Build 07.05.04)
##
## @note: drac_version was removed
#####

import sys, re, pexpect, exceptions
sys.path.append("@FENCEAGENTSLIBDIR@")
from fencing import *

#BEGIN_VERSION_GENERATION
RELEASE_VERSION="New Drac5 Agent - test release on steroids"
REDHAT_COPYRIGHT=""
BUILD_DATE="March, 2008"
#END_VERSION_GENERATION

def get_power_status(conn, options):
      try:
            if options["model"] == "DRAC CMC":
                  conn.sendline("racadm serveraction powerstatus -m " + options["-m"])
            elif options["model"] == "DRAC 5":
                  conn.sendline("racadm serveraction powerstatus")
            
            conn.log_expect(options, options["-c"], int(options["-Y"]))
      except pexpect.EOF:
            fail(EC_CONNECTION_LOST)
      except pexpect.TIMEOUT:
            fail(EC_TIMED_OUT)
                        
      status = re.compile("(^|: )(ON|OFF|Powering ON|Powering OFF)\s*$", re.IGNORECASE | re.MULTILINE).search(conn.before).group(2)
      if status.lower().strip() in ["on", "powering on", "powering off"]:
            return "on"
      else:
            return "off"

def set_power_status(conn, options):
      action = {
            'on' : "powerup",
            'off': "powerdown"
      }[options["-o"]]

      try:
            if options["model"] == "DRAC CMC":
                  conn.sendline("racadm serveraction " + action + " -m " + options["-m"])
            elif options["model"] == "DRAC 5":
                  conn.sendline("racadm serveraction " + action)
            conn.log_expect(options, options["-c"], int(options["-g"]))
      except pexpect.EOF:
            fail(EC_CONNECTION_LOST)
      except pexpect.TIMEOUT:
            fail(EC_TIMED_OUT)

def get_list_devices(conn, options):
      outlets = { }

      try:
            if options["model"] == "DRAC CMC":
                  conn.sendline("getmodinfo")

                  list_re = re.compile("^([^\s]*?)\s+Present\s*(ON|OFF)\s*.*$")
                  for line in conn.before.splitlines():
                        if (list_re.search(line)):
                              outlets[list_re.search(line).group(1)] = ("", list_re.search(line).group(2))
                  conn.log_expect(options, options["-c"], int(options["-g"]))
            elif options["model"] == "DRAC 5":
                  ## DRAC 5 can be used only for one computer
                  pass
      except pexpect.EOF:
            fail(EC_CONNECTION_LOST)
      except pexpect.TIMEOUT:
            fail(EC_TIMED_OUT)

      return outlets
      
def main():
      device_opt = [  "help", "version", "agent", "quiet", "verbose", "debug",
                  "action", "ipaddr", "login", "passwd", "passwd_script",
                  "cmd_prompt", "secure", "identity_file", "drac_version", "module_name",
                  "separator", "inet4_only", "inet6_only", "ipport",
                  "power_timeout", "shell_timeout", "login_timeout", "power_wait" ]

      atexit.register(atexit_handler)

      options = check_input(device_opt, process_input(device_opt))

      ## 
      ## Fence agent specific defaults
      #####
      if 0 == options.has_key("-c"):
            options["-c"] = "\$"

      docs = { }           
      docs["shortdesc"] = "Fence agent for Dell DRAC CMC/5" 
      docs["longdesc"] = "fence_drac5 is an I/O Fencing agent \
which can be used with the Dell Remote Access Card v5 or CMC (DRAC). \
This device provides remote access to controlling  power to a server. \
It logs into the DRAC through the telnet/ssh interface of the card. \
By default, the telnet interface is not  enabled."
      docs["vendorurl"] = "http://www.dell.com"
      show_docs(options, docs)

      ##
      ## Operate the fencing device
      ######
      conn = fence_login(options)

      if conn.before.find("CMC") >= 0:
            if 0 == options.has_key("-m") and 0 == ["monitor", "list"].count(option["-o"].lower()):
                  fail_usage("Failed: You have to enter module name (-m)")
                  
            options["model"]="DRAC CMC"         
      elif conn.before.find("DRAC 5") >= 0:
            options["model"]="DRAC 5"
      else:
            ## Assume this is DRAC 5 by default as we don't want to break anything
            options["model"]="DRAC 5"

      result = fence_action(conn, options, set_power_status, get_power_status, get_list_devices)

      ##
      ## Logout from system
      ######
      try:
            conn.sendline("exit")
            conn.close()
      except exceptions.OSError:
            pass
      except pexpect.ExceptionPexpect:
            pass
      
      sys.exit(result)

if __name__ == "__main__":
      main()

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