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fence-agents
fence_rhevm.patch
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File fence_rhevm.patch of Package fence-agents
From f3920bddb1df849d1ccc7284174af841201bd8ee Mon Sep 17 00:00:00 2001 From: Marek 'marx' Grac <mgrac@redhat.com> Date: Wed, 13 Oct 2010 16:02:09 +0200 Subject: [PATCH] fence_rhevm: New fence agent for RHEV-M REST API Resolves: rhbz#595383 --- fence/agents/lib/fencing.py.py | 8 ++ fence/agents/rhevm/Makefile | 7 ++ fence/agents/rhevm/fence_rhevm.py | 145 +++++++++++++++++++++++++++++++++++++ 3 files changed, 160 insertions(+), 0 deletions(-) create mode 100644 fence/agents/rhevm/Makefile create mode 100755 fence/agents/rhevm/fence_rhevm.py diff --git a/fence/agents/lib/fencing.py.py b/fence/agents/lib/fencing.py.py index 6646eb9..c906c06 100644 --- a/fence/agents/lib/fencing.py.py +++ b/fence/agents/lib/fencing.py.py @@ -67,6 +67,10 @@ all_opt = { "getopt" : "", "help" : "", "order" : 1 }, + "web" : { + "getopt" : "", + "help" : "", + "order" : 1 }, "action" : { "getopt" : "o:", "longopt" : "action", @@ -331,6 +335,8 @@ all_opt = { "longopt" : "shell-timeout", "help" : "--shell-timeout <seconds> Wait X seconds for cmd prompt after issuing command", "default" : "3", + "required" : "0", + "shortdesc" : "Wait X seconds for cmd prompt after issuing command", "order" : 200 }, "power_timeout" : { "getopt" : "g:", @@ -664,6 +670,8 @@ def check_input(device_opt, opt): options["-u"] = 22 elif options.has_key("-z"): options["-u"] = 443 + elif device_opt.count("web"): + options["-u"] = 80 else: options["-u"] = 23 diff --git a/fence/agents/rhevm/Makefile b/fence/agents/rhevm/Makefile new file mode 100644 index 0000000..21f1747 --- /dev/null +++ b/fence/agents/rhevm/Makefile @@ -0,0 +1,7 @@ +include ../../../make/defines.mk + +TARGET= fence_rhevm + +MAKEMAN = 1 + +include $(OBJDIR)/make/fencebuild.mk diff --git a/fence/agents/rhevm/fence_rhevm.py b/fence/agents/rhevm/fence_rhevm.py new file mode 100755 index 0000000..376e6e3 --- /dev/null +++ b/fence/agents/rhevm/fence_rhevm.py @@ -0,0 +1,145 @@ +#!/usr/bin/python + +import sys, re, pexpect, socket +import pycurl, StringIO +sys.path.append("@FENCEAGENTSLIBDIR@") +from fencing import * + +#BEGIN_VERSION_GENERATION +RELEASE_VERSION="New RHEV-M Agent - test release on steroids" +REDHAT_COPYRIGHT="" +BUILD_DATE="March, 2008" +#END_VERSION_GENERATION + + +re_get_id = re.compile("<vm id=\"(.*?)\"", re.IGNORECASE); +re_status = re.compile("<status>(.*?)</status>", re.IGNORECASE); +re_get_name = re.compile("<name>(.*?)</name>", re.IGNORECASE); + +def get_power_status(conn, options): + ### Obtain real ID from name + try: + res = send_command(options, "vms/?search=name%3D" + options["-n"]) + except pycurl.error, e: + sys.stderr.write(e[1] + "\n") + fail(EC_TIMED_OUT) + + result = re_get_id.search(res) + if (result == None): + # Unable to obtain ID needed to access virtual machine + fail(EC_STATUS) + + options["id"] = result.group(1); + + re_status.search(res) + result = re_status.search(res) + if (result == None): + # We were able to parse ID so output is correct + # in some cases it is possible that RHEV-M output does not + # contain <status> line. We can assume machine is OFF then + return "off" + else: + status = result.group(1) + + if (status == "RUNNING"): + return "on" + else: + return "off" + +def set_power_status(conn, options): + action = { + 'on' : "start", + 'off' : "stop" + }[options["-o"]] + + url = "vms/" + options["id"] + "/" + action + try: + res = send_command(options, url, "POST") + except pycurl.error, e: + sys.stderr.write(e[1] + "\n") + fail(EC_TIMED_OUT) + + return + +def get_list(conn, options): + outlets = { } + + try: + try: + res = send_command(options, "vms") + except pycurl.error, e: + sys.stderr.write(e[1] + "\n") + fail(EC_TIMED_OUT) + + lines = res.split("<vm ") + for i in range(1, len(lines)): + name = re_get_name.search(lines[i]).group(1) + outlets[name] = ("", None) + except AttributeError: + return { } + except IndexError: + return { } + + return outlets + +def send_command(opt, command, method = "GET"): + ## setup correct URL + if opt.has_key("-z"): + url = "https:" + else: + url = "http:" + + url += "//" + opt["-a"] + ":" + str(opt["-u"]) + "/rhevm-api-powershell/" + command + + ## send command through pycurl + c = pycurl.Curl() + b = StringIO.StringIO() + c.setopt(pycurl.URL, url) + c.setopt(pycurl.HTTPHEADER, [ "Content-type: application/xml", "Accept: application/xml" ]) + c.setopt(pycurl.HTTPAUTH, pycurl.HTTPAUTH_BASIC) + c.setopt(pycurl.USERPWD, opt["-l"] + ":" + opt["-p"]) + c.setopt(pycurl.TIMEOUT, int(opt["-Y"])) + c.setopt(pycurl.SSL_VERIFYPEER, 0) + + if (method == "POST"): + c.setopt(pycurl.POSTFIELDS, "<action />") + + c.setopt(pycurl.WRITEFUNCTION, b.write) + c.perform() + result = b.getvalue() + + if opt["log"] >= LOG_MODE_VERBOSE: + opt["debug_fh"].write(command + "\n") + opt["debug_fh"].write(result + "\n") + + return result + +def main(): + device_opt = [ "help", "version", "agent", "quiet", "verbose", "debug", + "action", "ipaddr", "login", "passwd", "passwd_script", + "ssl", "inet4_only", "inet6_only", "ipport", "port", + "web", "separator", "power_wait", "power_timeout", + "shell_timeout" ] + + atexit.register(atexit_handler) + + all_opt["power_wait"]["default"] = "1" + + options = check_input(device_opt, process_input(device_opt)) + + docs = { } + docs["shortdesc"] = "Fence agent for RHEV-M REST API" + docs["longdesc"] = "fence_rhevm is an I/O Fencing agent which can be \ +used with RHEV-M REST API to fence virtual machines." + docs["vendorurl"] = "http://www.redhat.com" + show_docs(options, docs) + + ## + ## Fence operations + #### + result = fence_action(None, options, set_power_status, get_power_status, get_list) + + sys.exit(result) + +if __name__ == "__main__": + main() -- 1.6.0.6
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