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fence_raritan.py
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fence_raritan.py
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#!@PYTHON@ -tt
import sys, re, pexpect
import atexit
sys.path.append("@FENCEAGENTSLIBDIR@")
from fencing import *
from fencing import fspawn, fail, EC_LOGIN_DENIED, run_delay
# --plug should include path to the outlet # such as port 1:
# /system1/outlet1
def get_power_status(conn, options):
conn.send_eol("show -d properties=powerState %s" % options["--plug"])
re_status = re.compile(".*powerState is [12].*")
conn.log_expect(re_status, int(options["--shell-timeout"]))
status = {
#"0" : "off",
"1" : "on",
"2" : "off",
}[conn.after.split()[2]]
return status
def set_power_status(conn, options):
action = {
"on" : "on",
"off" : "off",
}[options["--action"]]
conn.send_eol("set %s powerState=%s" % (options["--plug"], action))
def main():
device_opt = ["ipaddr", "login", "passwd", "port", "telnet"]
atexit.register(atexit_handler)
opt = process_input(device_opt)
all_opt["ipport"]["default"] = "23"
opt["eol"] = "\r\n"
options = check_input(device_opt, opt)
docs = {}
docs["shortdesc"] = "I/O Fencing agent for Raritan Dominion PX"
docs["longdesc"] = "fence_raritan is an I/O Fencing agent which can be \
used with the Raritan DPXS12-20 Power Distribution Unit. It logs into \
device via telnet and reboots a specified outlet. Lengthy telnet connections \
should be avoided while a GFS cluster is running because the connection will \
block any necessary fencing actions."
docs["vendorurl"] = "http://www.raritan.com/"
show_docs(options, docs)
# add support also for delay before login which is very useful for 2-node clusters
run_delay(options)
##
## Operate the fencing device
## We can not use fence_login(), username and passwd are sent on one line
####
try:
conn = fspawn(options, options["--telnet-path"])
conn.send("set binary\n")
conn.send("open %s -%s\n"%(options["--ip"], options["--ipport"]))
conn.read_nonblocking(size=100, timeout=int(options["--shell-timeout"]))
conn.log_expect("Login.*", int(options["--shell-timeout"]))
conn.send_eol("%s" % (options["--username"]))
conn.log_expect("Password.*", int(options["--shell-timeout"]))
conn.send_eol("%s" % (options["--password"]))
conn.log_expect("clp.*", int(options["--shell-timeout"]))
except pexpect.EOF:
fail(EC_LOGIN_DENIED)
except pexpect.TIMEOUT:
fail(EC_LOGIN_DENIED)
result = 0
if options["--action"] != "monitor":
result = fence_action(conn, options, set_power_status, get_power_status)
fence_logout(conn, "exit\n")
sys.exit(result)
if __name__ == "__main__":
main()

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