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cluesserver
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cluesserver
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#!/usr/bin/env python
#
# CLUES - Cluster Energy Saving System
# Copyright (C) 2015 - GRyCAP - Universitat Politecnica de Valencia
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import logging
import sys
import time
_ERROR_IMPORTING=None
try:
from clues.version import VERSION
import clues.configserver as configserver
import cpyutils.rpcweb
import cpyutils.eventloop
import clueslib.request
import clueslib.platform
# import clueslib.schedulers_extra
# import clueslib.evaluate
class clues_web_server(cpyutils.rpcweb.web_class):
def _access_page(self):
return "<html><body><form method=get>secret token<input type=text name=\"secret\" id=\"secret\"><input type=submit></body></html>"
# <style>body {font-family: arial;} </style>\
def _mainpage(self):
query = self.query
return "<html><head>\
<link rel=\"stylesheet\" href=\"http://csszengarden.com/examples/style.css\">\
<script src=\"http://code.jquery.com/jquery-latest.min.js\" type=\"text/javascript\"></script>\
<script language=\"javascript\" type=\"text/javascript\">\
var timeout = setInterval(reloadHosts, 5000);\
var timeout = setInterval(reloadRequests, 5000);\
var timeout = setInterval(reloadJobs, 2000);\
function reloadHosts () {$('#hosts').load('/status/hosts%s');}\
function reloadRequests () {$('#requests').load('/status/requests%s');}\
function reloadJobs () {$('#jobs').load('/status/jobs%s');}\
</script>\
<body><a href=\"/%s\">clear filter</a>\
<h1 class='expand-hosts'>Hosts</h1>\
<div id='hosts'>\
</div>\
<h1 class='expand-requests'>Requests</h1>\
<div id='requests'>\
</div>\
<h1 class='expand-jobs'>Jobs</h1>\
<div id='jobs'>\
</div>\
%%s</body>\
<script language=\"javascript\" type=\"text/javascript\">\
$('.expand-hosts').click(function(){$('#hosts').slideToggle('slow');});\
$('.expand-requests').click(function(){$('#requests').slideToggle('slow');});\
$('.expand-jobs').click(function(){$('#jobs').slideToggle('slow');});\
reloadHosts();reloadJobs();reloadRequests();</script>\
</html>" % (query, query, query, query)
def _status(self, path, secret, ref = ""):
global CLUES_DAEMON
if path == 'hosts':
succeed, nodeinfo = rawstatus(secret, "")
if not succeed:
return "info not available"
nodes = nodeinfo.get_list()
node_rows = []
en_str = { True:'enabled', False:'disabled'}
now = cpyutils.eventloop.now()
for k in sorted(nodes):
n = nodes[k]
days = int((now - n.timestamp_state) / 86400)
node_str="<tr><td><a href=\"/host/%s%s\">%s</a></td><td>%s</td><td>%s</td><td>%sd %s</td><td>%s</td><td>%s</td><td>%s</td><td>%s</td></tr>" % (n.name, ref, n.name[:24], (n.state2str[n.state])[:8], en_str[n.enabled], days, time.strftime("%Hh%M\'%S\"", time.gmtime(now - n.timestamp_state)), str(n.slots_count-n.slots_free), str(n.memory_total-n.memory_free), str(n.slots_count), str(n.memory_total))
node_rows.append(node_str)
return "<table>%s</table>" % "\n".join(node_rows)
if path == 'jobs':
return "%s<br>%s" % (cpyutils.eventloop.now(), str(CLUES_DAEMON.get_job_list()).replace("\n","<br>"))
if path == 'requests':
import clueslib.schedulers
booking_system = clueslib.schedulers.get_booking_system()
retval = "%s<br><h2>booking system</h2>%s<br>" % (str(CLUES_DAEMON.get_requests_list()), str(booking_system))
return str(retval.replace("\n","<br>"))
return "Not available"
def _get_var(self, varname):
secret = ""
for vv in self.query.lstrip("?").split("&"):
va = vv.split("=")
key = None
val = None
if len(va) == 2:
key, val = va
if key == varname:
secret = val
return secret
def _get_host(self, secret, hostname):
success, result = get_node_description(secret, hostname, False)
if success:
import clueslib.cluesd
import clueslib.node
import time
#db = clueslib.cluesd.NodeData()
#changes = db.retrieve_node_state_history(hostname, True)
changes_str = ""
#for (state, timestamp) in changes:
# if changes_str == "":
# change_str = "began in state '%s' @ %s" % (clueslib.node.Node.state2str[int(state)], time.strftime("%b %d %Y %H:%M:%S", time.gmtime(long(timestamp))))
# else:
# change_str = "changed to state '%s' @ %s" % (clueslib.node.Node.state2str[int(state)], time.strftime("%b %d %Y %H:%M:%S", time.gmtime(long(timestamp))))
# changes_str="%s%s<BR>" % (changes_str, change_str)
return changes_str + result.replace(";","<BR>")
return "Could not get info"
def GET(self, url):
self.query = "?"+"?".join(url.split("?")[1:])
url = url.split("?")[0]
path = url.lstrip("/").split("/")
secret = self._get_var("secret")
if (secret == "") or (secret is None):
return self._access_page()
if len(path) > 1 and path[0] == 'status':
return self._status("/".join(path[1:]), secret, self.query)
if path[0]=='host':
# print web.ctx.path
# print self._mainpage() % self._get_host("/".join(path[1:]))
return self._mainpage() % self._get_host(self._get_var("secret"), "/".join(path[1:]))
return self._mainpage() % ""
pass
vv = url.lstrip("/").split("/")
hdetail = None
if len(vv) == 2:
if vv[0] == 'host':
hdetail = vv[1]
if hdetail is not None:
success, hdetail = get_node_description(secret, hdetail, False)
else:
hdetail=""
success, requests = get_requests(secret)
global CLUES_DAEMON
retval="<html><body><table>%s</table>\n%s\n%s\n%s\n</body></html>" % ("\n".join(node_rows), requests.replace("\n","<BR>"), hdetail.replace(";", "<BR>"), str(CLUES_DAEMON).replace("\n","<BR>"))
return retval
except Exception, e:
_ERROR_IMPORTING = e
pass
import cpyutils.log
cpyutils.log.include_timestamp()
_LOGGER = cpyutils.log.Log("SERVER")
_LOGGER.level = logging.DEBUG
def GET_CLUES_DAEMON():
global CLUES_DAEMON
print CLUES_DAEMON
return CLUES_DAEMON
class Authentication_secret(object):
def __init__(self, SECRET):
self._SECRET = SECRET
def check_secret(self, secret):
if secret == self._SECRET:
return True, "Secret key correct"
return False, "Error checking the secret key. Please check the configuration file and the CLUES_SECRET_TOKEN setting"
AUTH_ENGINE = Authentication_secret("")
def version():
return VERSION
def login(sec_info):
global AUTH_ENGINE
succeed, explain = AUTH_ENGINE.check_secret(sec_info)
if succeed:
return True, sec_info
return False, "Could not authorize user"
def rawstatus(sec_info, nname):
global AUTH_ENGINE
succeed, explain = AUTH_ENGINE.check_secret(sec_info)
if not succeed:
return False, explain
global CLUES_DAEMON
nodelist = CLUES_DAEMON.get_nodelist()
return True, nodelist
def status(sec_info, nname):
#global AUTH_ENGINE
#succeed, explain = AUTH_ENGINE.check_secret(sec_info)
#if not succeed:
# return False, explain
#
#global CLUES_DAEMON
#nodelist = CLUES_DAEMON.get_nodelist()
succeed, nodelist = rawstatus(sec_info, nname)
if not succeed:
return False, nodelist
fmt_hea = "%-24s %8s %8s %11s %14s %15s"
fmt_str = "%-24s %8s %8s %11s %4s,%-9s %3s,%-9s"
legend = fmt_hea % ("node", "state", "enabled", "time stable", "(cpu,mem) used", "(cpu,mem) total")
head = "-"*24 + "---" + "-"*8 + "---" + "-"*8 + "---" + "-"*11 + "---" + "-"*14 + "---" + "-"*15
retval = "%s\n%s\n" % (legend, head)
now = cpyutils.eventloop.now()
head = "-"*24 + "---" + "-"*8 + "---" + "-"*8 + "---"
en_str = { True:'enabled', False:'disabled'}
nodes = nodelist.get_list()
for k in sorted(nodes):
n = nodes[k]
n_str = fmt_str % (n.name[:24], (n.state2str[n.state])[:8], en_str[n.enabled], time.strftime("%Hh%M\'%S\"", time.gmtime(now - n.timestamp_state)), str(n.slots_count-n.slots_free), str(n.memory_total-n.memory_free), str(n.slots_count), str(n.memory_total))
retval = "%s%s\n" % (retval, n_str)
return True, retval
def poweron(sec_info, node):
global AUTH_ENGINE
succeed, explain = AUTH_ENGINE.check_secret(sec_info)
# _LOGGER.debug("poweron result: %s" % succeed)
if not succeed:
return False, explain
global CLUES_DAEMON
success, nname = CLUES_DAEMON.power_on(node, True)
if not success:
return False, "could not power on the node %s" % node
else:
return True, "node %s powered on" % nname
def poweroff(sec_info, node):
global AUTH_ENGINE
succeed, explain = AUTH_ENGINE.check_secret(sec_info)
# _LOGGER.debug("poweroff result: %s" % succeed)
if not succeed:
return False, explain
global CLUES_DAEMON
success, nname = CLUES_DAEMON.power_off(node, True)
if not success:
return False, "could not power off the node %s" % node
else:
return True, "node %s powered off" % nname
def reset_node_state(sec_info, node):
global AUTH_ENGINE
succeed, explain = AUTH_ENGINE.check_secret(sec_info)
if not succeed:
return False, explain
global CLUES_DAEMON
success, msg = CLUES_DAEMON.reset_node_state(node)
if not success:
return False, "could not reset the node %s (%s)" % (node, msg)
else:
return True, msg
def enable_node(sec_info, nname, enable):
global AUTH_ENGINE
succeed, explain = AUTH_ENGINE.check_secret(sec_info)
# _LOGGER.debug("enable_node result: %s" % succeed)
if not succeed:
return False, explain
global CLUES_DAEMON
succeed, explain = CLUES_DAEMON.enable_host(nname, enable)
if enable:
opres = ("enabled", "enable")
else:
opres = ("disabled", "disable")
if succeed:
return True, "node %s successfully %s" % (nname, opres[0])
else:
return False, "could not %s node %s (%s)" % (opres[1], nname, explain)
def request_create(sec_info, cpu, memory, taskcount, maxtaskspernode = -1, request_string = "", job_id = -1, job_nodes = []):
global AUTH_ENGINE
succeed, explain = AUTH_ENGINE.check_secret(sec_info)
# _LOGGER.debug("request_create result: %s" % succeed)
if not succeed:
return False, explain
global CLUES_DAEMON
# TODO: it is pending to include other feaures for the nodes (i.e. keywords or expression to evaluate the nodes)
if job_id < 0:
job_id = None
job_nodes = []
if maxtaskspernode <= 0:
maxtaskspernode = taskcount
r = clueslib.request.Request(clueslib.request.ResourcesNeeded(cpu, memory, [ request_string ], taskcount, taskcount), job_id, job_nodes)
r_id = CLUES_DAEMON.request(r)
return True, r_id
def request_wait(sec_info, req_id, timeout):
global AUTH_ENGINE
succeed, explain = AUTH_ENGINE.check_secret(sec_info)
# _LOGGER.debug("request_wait result: %s (explain: %s)" % (succeed, explain))
if not succeed:
return False, explain
global CLUES_DAEMON
start_time = cpyutils.eventloop.now()
# TODO: should we launch this wait in other thread, just to avoid hanging the server?
while CLUES_DAEMON.request_in_queue(req_id):
current_time = cpyutils.eventloop.now()
if (timeout > 0) and ((current_time - start_time) > timeout):
return True, False
time.sleep(0.5)
return True, True
def request_pending(sec_info, req_id):
global AUTH_ENGINE
succeed, explain = AUTH_ENGINE.check_secret(sec_info)
if not succeed:
return False, explain
global CLUES_DAEMON
return True, CLUES_DAEMON.request_in_queue(req_id)
def get_node_description(sec_info, nname, xml = True):
global AUTH_ENGINE
succeed, explain = AUTH_ENGINE.check_secret(sec_info)
# _LOGGER.debug("get_node_description result: %s" % succeed)
if not succeed:
return False, explain
global CLUES_DAEMON
node = CLUES_DAEMON.get_node(nname)
if node is None:
return False, "node is not managed by CLUES"
if xml:
return True, node.toxml()
else:
return True, node.tokeywordstr()
def get_requests(sec_info):
global AUTH_ENGINE
succeed, explain = AUTH_ENGINE.check_secret(sec_info)
# _LOGGER.debug("get_request result: %s" % succeed)
if not succeed:
return False, explain
global CLUES_DAEMON
return True, str(CLUES_DAEMON.get_requests_list())
#--------------------
def main_loop(custom_lrms = None, custom_power_mgr = None, callback_before_loop = None, args_to_callback_before_loop = []):
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-s", "--simmulated-time", dest="RT_MODE", action="store_false", default=True, help="runs app in real time")
(options, args) = parser.parse_args()
try:
LOG_FILE=configserver._CONFIGURATION_GENERAL.LOG_FILE
LOG_LEVEL=configserver._CONFIGURATION_GENERAL.LOG_LEVEL
except:
LOG_FILE=None
LOG_LEVEL=logging.DEBUG
logging.basicConfig(filename=LOG_FILE,level=LOG_LEVEL,format="[%(levelname)s] %(asctime)-15s %(message)s")
if _ERROR_IMPORTING is not None:
if isinstance(_ERROR_IMPORTING, ImportError):
logging.critical("Error starting CLUES because there is a missing class: %s" % str(_ERROR_IMPORTING))
else:
logging.critical("Error starting CLUES: %s" % str(_ERROR_IMPORTING))
sys.exit(-1)
cpyutils.eventloop.create_eventloop(options.RT_MODE)
global AUTH_ENGINE
AUTH_ENGINE = Authentication_secret(configserver._CONFIGURATION_GENERAL.CLUES_SECRET_TOKEN)
# -------------------------------------------------------------------------------
# This is how we can integrate to a ONE deployment
# i.e. monitoring the hosts
# -------------------------------------------------------------------------------
# import plugins.one
# LRMS = plugins.one.lrms()
# -------------------------------------------------------------------------------
# This is how we can integrate to a PBS deployment
# i.e. monitoring the hosts
# -------------------------------------------------------------------------------
# import plugins.pbs
# LRMS = plugins.pbs.lrms()
'''
import plugins.pbs
LRMS = plugins.pbs.lrms()
import plugins.one
POW_MGR = plugins.one.powermanager()
'''
if configserver._CONFIGURATION_GENERAL.LRMS_CLASS == "":
logging.error("a LRMS class must be defined for CLUES, you should use LRMS_CLASS in the clues2.cfg file")
exit(-1)
if configserver._CONFIGURATION_GENERAL.POWERMANAGER_CLASS == "":
logging.warning("a POWERMANAGER class must be defined for CLUES, you should use POWERMANAGER_CLASS in the clues2.cfg file")
configserver._CONFIGURATION_GENERAL.POWERMANAGER_CLASS = None
import importlib
if custom_lrms is None:
try:
LRMS_CLASS=importlib.import_module(configserver._CONFIGURATION_GENERAL.LRMS_CLASS)
_LOGGER.info("activating lrms: \"%s\"" % configserver._CONFIGURATION_GENERAL.LRMS_CLASS)
except Exception, e:
logging.error(e)
logging.error("could not import the LRMS class stated in LRMS_CLASS (%s) from the clues2.cfg file" % configserver._CONFIGURATION_GENERAL.LRMS_CLASS)
exit(-1)
if custom_power_mgr is None:
if configserver._CONFIGURATION_GENERAL.POWERMANAGER_CLASS is not None:
try:
POWERMANAGER_CLASS=importlib.import_module(configserver._CONFIGURATION_GENERAL.POWERMANAGER_CLASS)
_LOGGER.info("activating powermanager: \"%s\"" % configserver._CONFIGURATION_GENERAL.POWERMANAGER_CLASS)
except Exception, e:
logging.error(e)
logging.error("could not import the POWERMANAGER class stated in POWERMANAGER_CLASS (%s) from the clues2.cfg file" % configserver._CONFIGURATION_GENERAL.POWERMANAGER_CLASS)
exit(-1)
else:
logging.warning("it is not defined any POWERMANAGER class in the configuration file. CLUES will not be able to power on or off the nodes")
global LRMS
if custom_lrms is None:
try:
LRMS=LRMS_CLASS.lrms()
except Exception, e:
logging.error(e)
logging.error("cannot use %s as a plugin for LRMS in CLUES, because the 'lrms' class is not defined" % configserver._CONFIGURATION_GENERAL.LRMS_CLASS)
exit(-1)
else:
LRMS = custom_lrms
logging.debug("LRMS %s initialized" % LRMS.get_id())
POW_MGR = None
if custom_power_mgr is None:
if configserver._CONFIGURATION_GENERAL.POWERMANAGER_CLASS is not None:
try:
POW_MGR=POWERMANAGER_CLASS.powermanager()
except Exception, e:
logging.error(e)
logging.error("cannot use %s as a plugin for POWERMANAGER in CLUES, because the 'powermanager' class is not defined" % configserver._CONFIGURATION_GENERAL.POWERMANAGER_CLASS)
exit(-1)
else:
POW_MGR = custom_power_mgr
import clueslib.platform
server = cpyutils.rpcweb.XMLRPCServer("localhost", configserver._CONFIGURATION_GENERAL.CLUES_PORT, web_class = clues_web_server)
'''
server.register_function(qsub)
server.register_function(qstat)
server.register_function(pbsnodes)
server.register_function(cluesnodes)
'''
# Production
server.register_function(version)
server.register_function(login)
server.register_function(status)
server.register_function(poweron)
server.register_function(poweroff)
server.register_function(enable_node)
server.register_function(reset_node_state)
server.register_function(request_create)
server.register_function(request_wait)
server.register_function(request_pending)
server.register_function(get_requests)
server.register_function(get_node_description)
server.start_in_thread()
global PLATFORM
PLATFORM = clueslib.platform.Platform(LRMS, POW_MGR)
from clueslib.cluesd import CluesDaemon
global CLUES_DAEMON
# Here we will instantiate the schedulers
active_schedulers = []
scheduler_classes = configserver.config_scheduling.SCHEDULER_CLASSES.split(",")
for sclass in scheduler_classes:
sclass = sclass.strip()
valid_scheduler = False
try:
_LOGGER.debug("loading class %s for scheduling" % sclass)
class_name = clueslib.helpers.str_to_class(sclass)
valid_scheduler = True
except NameError:
_LOGGER.error("CLUES does not have access to class \"%s\" to create the scheduler" % sclass)
except TypeError:
_LOGGER.error("\"%s\" is not a valid class to create the scheduler" % sclass)
if valid_scheduler:
current_scheduler = class_name()
if not isinstance(current_scheduler, clueslib.schedulers.CLUES_Scheduler):
_LOGGER.error("ignoring scheduler \"%s\" because it is not a valid class to create the scheduler" % sclass)
else:
_LOGGER.info("Activating scheduler \"%s\"" % sclass)
active_schedulers.append(current_scheduler)
CLUES_DAEMON = CluesDaemon(PLATFORM, active_schedulers)
_LOGGER.debug("CLUES server starting")
if callback_before_loop is not None:
callback_before_loop(*args_to_callback_before_loop)
CLUES_DAEMON.loop(options.RT_MODE)
if __name__ == '__main__':
main_loop()