[Cluster-devel] [PATCH] fence_netio: new fence-agent for the Koukaam NETIO-230B PDU

[Nikola Ciprich <nikola.ciprich@linuxbox.cz>]

Hi guys,

just wanted to report, it works pretty well with 230CS too.
good job, thanks a lot!

nik


On Mon, Sep 30, 2013 at 01:18:34PM +0200, Marek Grac wrote:
> Hi,
> 
> thanks for patch, I do not have any objections - applied to upstream
> 
> m,
> On 09/28/2013 12:15 PM, Niels de Vos wrote:
> >The Koukaam NETIO-230B is a power distribution unit with four normal
> >(European) sockets. The device has a webui and a telnet interface. Each
> >socket can be given a custom name, which is returned with '-o list'.
> >
> >Link to the device, its specifications and API:
> >- http://www.koukaam.se/kkm/showproduct.php?article_id=1502
> >
> >Signed-off-by: Niels de Vos <ndevos@redhat.com>
> >---
> >  .gitignore                        |    1 +
> >  configure.ac                      |    1 +
> >  fence/agents/netio/Makefile.am    |   17 +++++
> >  fence/agents/netio/fence_netio.py |  119 +++++++++++++++++++++++++++++++++++++
> >  4 files changed, 138 insertions(+), 0 deletions(-)
> >  create mode 100644 fence/agents/netio/Makefile.am
> >  create mode 100755 fence/agents/netio/fence_netio.py
> >
> >diff --git a/.gitignore b/.gitignore
> >index 245592f..0c19556 100644
> >--- a/.gitignore
> >+++ b/.gitignore
> >@@ -59,6 +59,7 @@ fence/agents/lib/fencing_snmp.pyc
> >  fence/agents/lpar/fence_lpar
> >  fence/agents/manual/fence_ack_manual
> >  fence/agents/mcdata/fence_mcdata
> >+fence/agents/netio/fence_netio
> >  fence/agents/node_assassin/fence_na
> >  fence/agents/node_assassin/fence_na.conf
> >  fence/agents/node_assassin/fence_na.lib
> >diff --git a/configure.ac b/configure.ac
> >index 910cab8..6f4baa0 100644
> >--- a/configure.ac
> >+++ b/configure.ac
> >@@ -276,6 +276,7 @@ AC_CONFIG_FILES([Makefile
> >  		 fence/agents/lpar/Makefile
> >  		 fence/agents/manual/Makefile
> >  		 fence/agents/mcdata/Makefile
> >+		 fence/agents/netio/Makefile
> >  		 fence/agents/nss_wrapper/Makefile
> >  		 fence/agents/rackswitch/Makefile
> >  		 fence/agents/ovh/Makefile
> >diff --git a/fence/agents/netio/Makefile.am b/fence/agents/netio/Makefile.am
> >new file mode 100644
> >index 0000000..3e1a1d9
> >--- /dev/null
> >+++ b/fence/agents/netio/Makefile.am
> >@@ -0,0 +1,17 @@
> >+MAINTAINERCLEANFILES	= Makefile.in
> >+
> >+TARGET			= fence_netio
> >+
> >+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/netio/fence_netio.py b/fence/agents/netio/fence_netio.py
> >new file mode 100755
> >index 0000000..ffb6e30
> >--- /dev/null
> >+++ b/fence/agents/netio/fence_netio.py
> >@@ -0,0 +1,119 @@
> >+#!/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
> >+
> >+def get_power_status(conn, options):
> >+	conn.send_eol("port %s" % options["--plug"])
> >+	re_status = re.compile("250 [01imt]")
> >+	conn.log_expect(options, re_status, int(options["--shell-timeout"]))
> >+	status = {
> >+		"0" : "off",
> >+		"1" : "on",
> >+		"i" : "reboot",
> >+		"m" : "manual",
> >+		"t" : "timer"
> >+	}[conn.after.split()[1]]
> >+
> >+	return status
> >+
> >+def set_power_status(conn, options):
> >+	action = {
> >+		"on" : "1",
> >+		"off" : "0",
> >+		"reboot" : "i"
> >+	}[options["--action"]]
> >+
> >+	conn.send_eol("port %s %s" % (options["--plug"], action))
> >+	conn.log_expect(options, "250 OK", int(options["--shell-timeout"]))
> >+
> >+def get_outlet_list(conn, options):
> >+	result = {}
> >+
> >+	try:
> >+		# the NETIO-230B has 4 ports, counting start at 1
> >+		for plug in ["1", "2", "3", "4"]:
> >+			conn.send_eol("port setup %s" % plug)
> >+			conn.log_expect(options, "250 .+", int(options["--shell-timeout"]))
> >+			# the name is enclosed in "", drop those with [1:-1]
> >+			name = conn.after.split()[1][1:-1]
> >+			result[plug] = (name, "unknown")
> >+	except Exception, exn:
> >+		print str(exn)
> >+
> >+	return result
> >+
> >+def main():
> >+	device_opt = [ "ipaddr", "login", "passwd", "port" ]
> >+
> >+	atexit.register(atexit_handler)
> >+
> >+	opt = process_input(device_opt)
> >+
> >+	# set default port for telnet only
> >+	if 0 == opt.has_key("--ipport"):
> >+		opt["--ipport"] = "1234"
> >+
> >+	opt["eol"] = "\r\n"
> >+	options = check_input(device_opt, opt)
> >+
> >+	docs = { }
> >+	docs["shortdesc"] = "I/O Fencing agent for Koukaam NETIO-230B"
> >+	docs["longdesc"] = "fence_netio is an I/O Fencing agent which can be \
> >+used with the Koukaam NETIO-230B 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.koukaam.se/"
> >+	show_docs(options, docs)
> >+
> >+	##
> >+	## Operate the fencing device
> >+	## We can not use fence_login(), username and passwd are sent on one line
> >+	####
> >+	try:
> >+		try:
> >+			conn = fspawn(options, TELNET_PATH)
> >+			conn.send("set binary\n")
> >+			conn.send("open %s -%s\n"%(options["--ip"], options["--ipport"]))
> >+		except pexpect.ExceptionPexpect, ex:
> >+			sys.stderr.write(str(ex) + "\n")
> >+			sys.stderr.write("Due to limitations, binary dependencies on fence agents "
> >+			"are not in the spec file and must be installed separately." + "\n")
> >+			sys.exit(EC_GENERIC_ERROR)
> >+
> >+		screen = conn.read_nonblocking(size=100, timeout=int(options["--shell-timeout"]))
> >+		conn.log_expect(options, "100 HELLO .*", int(options["--shell-timeout"]))
> >+		conn.send_eol("login %s %s" % (options["--username"], options["--password"]))
> >+		conn.log_expect(options, "250 OK", 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, get_outlet_list)
> >+
> >+	##
> >+	## 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("quit\n")
> >+		conn.log_expect(options, "110 BYE", int(options["--shell-timeout"]))
> >+		conn.close()
> >+	except:
> >+		pass
> >+
> >+	sys.exit(result)
> >+
> >+if __name__ == "__main__":
> >+	main()
> 

-- 
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Ing. Nikola CIPRICH
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