fence-agents: master - fence_raritan: new fence agent for Raritan Dominion PX

Marek GrĂ¡c marx at fedoraproject.org
Wed Apr 2 13:11:53 UTC 2014


Gitweb:        http://git.fedorahosted.org/git/?p=fence-agents.git;a=commitdiff;h=ef85cb7d44f4772b258c03352b6d8ca75c6107df
Commit:        ef85cb7d44f4772b258c03352b6d8ca75c6107df
Parent:        5901c326a39f68582fd0d5f5d465ced87b9e230d
Author:        Marek 'marx' Grac <mgrac at redhat.com>
AuthorDate:    Wed Apr 2 15:06:55 2014 +0200
Committer:     Marek 'marx' Grac <mgrac at redhat.com>
CommitterDate: Wed Apr 2 15:06:55 2014 +0200

fence_raritan: new fence agent for Raritan Dominion PX

Written by David Smith <dsmith at mypchelp.com>
---
 .gitignore                            |    1 +
 configure.ac                          |    1 +
 fence/agents/raritan/Makefile.am      |   17 ++++++
 fence/agents/raritan/fence_raritan.py |   98 +++++++++++++++++++++++++++++++++
 4 files changed, 117 insertions(+), 0 deletions(-)

diff --git a/.gitignore b/.gitignore
index a711b3a..74198b2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -67,6 +67,7 @@ fence/agents/node_assassin/fence_na.pod
 fence/agents/nss_wrapper/fence_nss_wrapper
 fence/agents/rackswitch/fence_rackswitch
 fence/agents/rhevm/fence_rhevm
+fence/agents/raritan/fence_raritan
 fence/agents/rsa/fence_rsa
 fence/agents/rsb/fence_rsb
 fence/agents/sanbox2/fence_sanbox2
diff --git a/configure.ac b/configure.ac
index eaef1d8..c24198c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -283,6 +283,7 @@ AC_CONFIG_FILES([Makefile
 		 fence/agents/netio/Makefile
 		 fence/agents/rackswitch/Makefile
 		 fence/agents/ovh/Makefile
+		 fence/agents/raritan/Makefile
 		 fence/agents/rhevm/Makefile
 		 fence/agents/rsa/Makefile
 		 fence/agents/rsb/Makefile
diff --git a/fence/agents/raritan/Makefile.am b/fence/agents/raritan/Makefile.am
new file mode 100644
index 0000000..f41ba56
--- /dev/null
+++ b/fence/agents/raritan/Makefile.am
@@ -0,0 +1,17 @@
+MAINTAINERCLEANFILES	= Makefile.in
+
+TARGET			= fence_raritan
+
+SRC			= $(TARGET).py
+
+EXTRA_DIST		= $(SRC)
+
+sbin_SCRIPTS		= $(TARGET)
+
+man_MANS		= $(TARGET).8
+
+include $(top_srcdir)/make/fencebuild.mk
+include $(top_srcdir)/make/fenceman.mk
+
+clean-local: clean-man
+	rm -f $(TARGET)
diff --git a/fence/agents/raritan/fence_raritan.py b/fence/agents/raritan/fence_raritan.py
new file mode 100644
index 0000000..c8137b0
--- /dev/null
+++ b/fence/agents/raritan/fence_raritan.py
@@ -0,0 +1,98 @@
+#!/usr/bin/python
+
+import sys, re, pexpect, exceptions
+sys.path.append("@FENCEAGENTSLIBDIR@")
+from fencing import *
+
+#BEGIN_VERSION_GENERATION
+RELEASE_VERSION=""
+REDHAT_COPYRIGHT=""
+BUILD_DATE=""
+#END_VERSION_GENERATION
+
+# --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(options, 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" ]
+
+	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
+	if options["--action"] in ["off", "reboot"]:
+                time.sleep(int(options["--delay"]))
+
+	##
+	## Operate the fencing device
+	## We can not use fence_login(), username and passwd are sent on one line
+	####
+	try:
+		conn = fspawn(options, TELNET_PATH)
+		conn.send("set binary\n")
+		conn.send("open %s -%s\n"%(options["--ip"], options["--ipport"]))
+		screen = conn.read_nonblocking(size=100, timeout=int(options["--shell-timeout"]))
+		conn.log_expect(options, "Login.*", int(options["--shell-timeout"]))
+		conn.send_eol("%s" % (options["--username"]))
+		conn.log_expect(options, "Password.*", int(options["--shell-timeout"]))
+		conn.send_eol("%s" % (options["--password"]))
+		conn.log_expect(options, "clp.*", int(options["--shell-timeout"]))
+	except pexpect.EOF:
+		fail(EC_LOGIN_DENIED)
+	except pexpect.TIMEOUT:
+		fail(EC_LOGIN_DENIED)
+	result = fence_action(conn, options, set_power_status, get_power_status)
+
+	##
+	## Logout from system
+	##
+	## In some special unspecified cases it is possible that
+	## connection will be closed before we run close(). This is not
+	## a problem because everything is checked before.
+	######
+	try:
+		conn.send("exit\n")
+		conn.close()
+	except:
+		pass
+
+	sys.exit(result)
+
+if __name__ == "__main__":
+	main()


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