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fence_rsa.py

#!/usr/bin/python

#####
##
## The Following Agent Has Been Tested On:
##  Main GFEP25A & Boot GFBP25A
##
#####

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

#BEGIN_VERSION_GENERATION
RELEASE_VERSION="New RSA2 Agent - test release on steroids"
REDHAT_COPYRIGHT=""
BUILD_DATE=""
#END_VERSION_GENERATION

def get_power_status(conn, options):
      try:
            conn.send("power state\r\n")
            conn.log_expect(options, options["-c"], int(options["-Y"]))
      except pexpect.EOF:
            fail(EC_CONNECTION_LOST)
      except pexpect.TIMEOUT:
            fail(EC_TIMED_OUT)
                        
      match = re.compile("Power: (.*)", re.IGNORECASE).search(conn.before)
      if (match != None):
            status = match.group(1)
      else:
            status = "undefined"

      return status.lower().strip()

def set_power_status(conn, options):
      try:
            conn.send("power " + options["-o"] + "\r\n")
            conn.log_expect(options, options["-c"], int(options["-g"]))
      except pexpect.EOF:
            fail(EC_CONNECTION_LOST)
      except pexpect.TIMEOUT:
            fail(EC_TIMED_OUT)

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

      atexit.register(atexit_handler)

      all_opt["login_timeout"]["default"] = 10
      options = check_input(device_opt, process_input(device_opt))

      ## 
      ## Fence agent specific defaults
      #####
      if 0 == options.has_key("-c"):
            options["-c"] = ">"
            
      # This device will not allow us to login even with LANG=C
      options["ssh_options"] = "-F /dev/null"

      docs = { }
      docs["shortdesc"] = "Fence agent for IBM RSA"
      docs["longdesc"] = "fence_rsa is an I/O Fencing agent \
which can be used with the IBM RSA II management interface. It \
logs into an RSA II device via telnet and reboots the associated \
machine. Lengthy telnet connections to the RSA II device should \
be avoided while a GFS cluster is running because the connection \
will block any necessary fencing actions."
      docs["vendorurl"] = "http://www.ibm.com"
      show_docs(options, docs)
      
      ##
      ## Operate the fencing device
      ######
      conn = fence_login(options)
      result = fence_action(conn, options, set_power_status, get_power_status, None)

      ##
      ## 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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