monitor/scanapi.py

   1 #!/usr/bin/python
   2
   3 import os
   4 import sys
   5 import string
   6 import time
   7 from datetime import datetime,timedelta
   8 import threadpool
   9 import threading
  10
  11 import socket
  12 from pcucontrol import reboot
  13
  14 from pcucontrol.util import command
  15 from monitor import config
  16
  17 from monitor.database.info.model import *
  18
  19 from monitor.sources import comon
  20 from monitor.wrapper import plc, plccache
  21
  22 import traceback
  23 from monitor.common import nmap_port_status, email_exception
  24
  25 COMON_COTOPURL= "http://summer.cs.princeton.edu/status/tabulator.cgi?" + \
  26                         "table=table_nodeview&" + \
  27                         "dumpcols='name,resptime,sshstatus,uptime,lastcotop,cpuspeed,memsize,disksize'&" + \
  28                         "formatcsv"
  29
  30 api = plc.getAuthAPI()
  31 plc_lock = threading.Lock()
  32 round = 1
  33 global_round = round
  34 count = 0
  35
  36
  37 def get_pcu(pcuname):
  38         plc_lock.acquire()
  39         try:
  40                 #print "GetPCU from PLC %s" % pcuname
  41                 l_pcu  = plc.GetPCUs({'pcu_id' : pcuname})
  42                 #print l_pcu
  43                 if len(l_pcu) > 0:
  44                         l_pcu = l_pcu[0]
  45         except:
  46                 try:
  47                         #print "GetPCU from file %s" % pcuname
  48                         l_pcus = plccache.l_pcus
  49                         for i in l_pcus:
  50                                 if i['pcu_id'] == pcuname:
  51                                         l_pcu = i
  52                 except:
  53                         traceback.print_exc()
  54                         l_pcu = None
  55
  56         plc_lock.release()
  57         return l_pcu
  58
  59 def get_nodes(node_ids):
  60         plc_lock.acquire()
  61         l_node = []
  62         try:
  63                 l_node = plc.getNodes(node_ids, ['hostname', 'last_contact', 'node_id', 'ports'])
  64         except:
  65                 try:
  66                         plc_nodes = plccache.l_nodes
  67                         for n in plc_nodes:
  68                                 if n['node_id'] in node_ids:
  69                                         l_node.append(n)
  70                 except:
  71                         traceback.print_exc()
  72                         l_node = None
  73
  74         plc_lock.release()
  75         if l_node == []:
  76                 l_node = None
  77         return l_node
  78
  79
  80 def get_plc_pcu_values(pcuname):
  81         """
  82                 Try to contact PLC to get the PCU info.
  83                 If that fails, try a backup copy from the last run.
  84                 If that fails, return None
  85         """
  86         values = {}
  87
  88         l_pcu = get_pcu(pcuname)
  89
  90         if l_pcu is not None:
  91                 site_id = l_pcu['site_id']
  92                 node_ids = l_pcu['node_ids']
  93                 l_node = get_nodes(node_ids)
  94
  95                 if l_node is not None:
  96                         for node in l_node:
  97                                 values[node['hostname']] = node['ports'][0]
  98
  99                         values['nodenames'] = [node['hostname'] for node in l_node]
 100
 101                         # NOTE: this is for a dry run later. It doesn't matter which node.
 102                         values['node_id'] = l_node[0]['node_id']
 103
 104                 values.update(l_pcu)
 105         else:
 106                 values = None
 107
 108         return values
 109
 110 class ScanInterface(object):
 111         recordclass = None
 112         syncclass = None
 113         primarykey = 'hostname'
 114
 115         def __init__(self, round=1):
 116                 self.round = round
 117                 self.count = 1
 118
 119         def __getattr__(self, name):
 120                 if 'collect' in name or 'record' in name:
 121                         method = getattr(self, name, None)
 122                         if method is None:
 123                                 raise Exception("No such method %s" % name)
 124                         return method
 125                 else:
 126                         raise Exception("No such method %s" % name)
 127
 128         def collect(self, nodename, data):
 129                 pass
 130
 131         def record(self, request, (nodename, values) ):
 132
 133                 try:
 134                         if values is None:
 135                                 return
 136
 137                         if self.syncclass:
 138                                 fbnodesync = self.syncclass.findby_or_create(
 139                                                                                                 #if_new_set={'round' : self.round},
 140                                                                                                 **{ self.primarykey : nodename})
 141                         # NOTE: This code will either add a new record for the new self.round,
 142                         #       OR it will find the previous value, and update it with new information.
 143                         #       The data that is 'lost' is not that important, b/c older
 144                         #       history still exists.
 145                         fbrec = self.recordclass.findby_or_create(
 146                                                 **{ self.primarykey:nodename})
 147
 148                         fbrec.set( **values )
 149
 150                         fbrec.flush()
 151                         if self.syncclass:
 152                                 fbnodesync.round = self.round
 153                                 fbnodesync.flush()
 154
 155                         print "%d %s %s" % (self.count, nodename, values)
 156                         self.count += 1
 157
 158                 except:
 159                         print "ERROR:"
 160                         email_exception(str(nodename))
 161                         print traceback.print_exc()
 162                         pass
 163
 164 class ScanNodeInternal(ScanInterface):
 165         recordclass = FindbadNodeRecord
 166         #syncclass = FindbadNodeRecordSync
 167         syncclass = None
 168         primarykey = 'hostname'
 169
 170         def collectNMAP(self, nodename, cohash):
 171                 #### RUN NMAP ###############################
 172                 values = {}
 173                 nmap = command.CMD()
 174                 print "nmap -oG - -P0 -p22,80,806 %s | grep Host:" % nodename
 175                 (oval,eval) = nmap.run_noexcept("nmap -oG - -P0 -p22,80,806 %s | grep Host:" % nodename)
 176                 # NOTE: an empty / error value for oval, will still work.
 177                 (values['port_status'], continue_probe) = nmap_port_status(oval)
 178
 179                 values['date_checked'] = datetime.now()
 180
 181                 return (nodename, values)
 182
 183         def collectInternal(self, nodename, cohash):
 184                 ### RUN PING ######################
 185                 ping = command.CMD()
 186                 (oval,errval) = ping.run_noexcept("ping -c 1 -q %s | grep rtt" % nodename)
 187
 188                 try:
 189                         values = {}
 190
 191                         if oval == "":
 192                                 # An error occurred
 193                                 values['ping_status'] = False
 194                         else:
 195                                 values['ping_status'] = True
 196
 197                         try:
 198                                 for port in [22, 806]:
 199                                         ssh = command.SSH('root', nodename, port)
 200
 201                                         (oval, errval) = ssh.run_noexcept2(""" <<\EOF
 202                                                 echo "{"
 203                                                 echo '  "kernel_version":"'`uname -a`'",'
 204                                                 echo '  "bmlog":"'`ls /tmp/bm.log`'",'
 205                                                 echo '  "bootcd_version":"'`cat /mnt/cdrom/bootme/ID`'",'
 206                                                 echo '  "nm_status":"'`ps ax | grep nm.py | grep -v grep`'",'
 207                                                 echo '  "dns_status":"'`host boot.planet-lab.org 2>&1`'",'
 208                                                 echo '  "princeton_comon_dir":"'`ls -d /vservers/princeton_comon`'",'
 209                                                 echo '  "uptime":"'`uptime`'",'
 210
 211                                                 ID=`grep princeton_comon /etc/passwd | awk -F : '{if ( $3 > 500 ) { print $3}}'`
 212                                                 echo '  "princeton_comon_running":"'`ls -d /proc/virtual/$ID`'",'
 213                                                 echo '  "princeton_comon_procs":"'`vps ax | grep $ID | grep -v grep | wc -l`'",'
 214                                                 echo '  "fs_status":"'`grep proc /proc/mounts | grep ro, ; if [ -x /usr/bin/timeout.pl ] ; then timeout.pl 20 touch /var/log/monitor 2>&1 ; if [ -d /vservers/ ] ; then timeout.pl 20 touch /vservers/monitor.log 2>&1  ; fi ; fi`'",'
 215                                                 echo '  "rpm_version":"'`if [ -x /usr/bin/timeout.pl ] ; then timeout.pl 30 rpm -q NodeManager ; fi`'",'
 216                                                 echo '  "rpm_versions":"'`if [ -x /usr/bin/timeout.pl ] ; then timeout.pl 45 rpm -q -a ; fi`'",'
 217                                                 echo "}"
 218 EOF                             """)
 219
 220                                         values['ssh_error'] = errval
 221                                         if len(oval) > 0:
 222                                                 #print "OVAL: %s" % oval
 223                                                 values.update(eval(oval))
 224                                                 values['ssh_portused'] = port
 225                                                 break
 226                                         else:
 227                                                 values.update({'kernel_version': "", 'bmlog' : "", 'bootcd_version' : '',
 228                                                                                 'nm_status' : '',
 229                                                                                 'fs_status' : '',
 230                                                                                 'uptime' : '',
 231                                                                                 'dns_status' : '',
 232                                                                                 'rpm_version' : '',
 233                                                                                 'rpm_versions' : '',
 234                                                                                 'princeton_comon_dir' : "",
 235                                                                                 'princeton_comon_running' : "",
 236                                                                                 'princeton_comon_procs' : "", 'ssh_portused' : None})
 237                         except:
 238                                 print traceback.print_exc()
 239                                 sys.exit(1)
 240
 241                         values['fs_status'] = ""
 242                         print "ALLVERSIONS: %s %s" % (nodename, values['rpm_versions'])
 243
 244                         print "RPMVERSION: %s %s" % (nodename, values['rpm_version'])
 245                         print "UPTIME: %s %s" % (nodename, values['uptime'])
 246                         ### RUN SSH ######################
 247                         b_getbootcd_id = True
 248
 249                         oval = values['kernel_version']
 250                         if "2.6.17" in oval or "2.6.2" in oval:
 251                                 values['ssh_status'] = True
 252                                 values['observed_category'] = 'PROD'
 253                                 if "bm.log" in values['bmlog']:
 254                                         values['observed_status'] = 'DEBUG'
 255                                 else:
 256                                         values['observed_status'] = 'BOOT'
 257                         elif "2.6.12" in oval or "2.6.10" in oval:
 258                                 values['ssh_status'] = True
 259                                 values['observed_category'] = 'OLDPROD'
 260                                 if "bm.log" in values['bmlog']:
 261                                         values['observed_status'] = 'DEBUG'
 262                                 else:
 263                                         values['observed_status'] = 'BOOT'
 264
 265                         # NOTE: on 2.6.8 kernels, with 4.2 bootstrapfs, the chroot
 266                         #       command fails.  I have no idea why.
 267                         elif "2.4" in oval or "2.6.8" in oval:
 268                                 b_getbootcd_id = False
 269                                 values['ssh_status'] = True
 270                                 values['observed_category'] = 'OLDBOOTCD'
 271                                 values['observed_status'] = 'DEBUG'
 272                         elif oval != "":
 273                                 values['ssh_status'] = True
 274                                 values['observed_category'] = 'UNKNOWN'
 275                                 if "bm.log" in values['bmlog']:
 276                                         values['observed_status'] = 'DEBUG'
 277                                 else:
 278                                         values['observed_status'] = 'BOOT'
 279                         else:
 280                                 # An error occurred.
 281                                 b_getbootcd_id = False
 282                                 values['ssh_status'] = False
 283                                 values['observed_category'] = 'ERROR'
 284                                 values['observed_status'] = 'DOWN'
 285                                 val = errval.strip()
 286                                 values['ssh_error'] = val
 287                                 values['kernel_version'] = ""
 288
 289                         if b_getbootcd_id:
 290                                 # try to get BootCD for all nodes that are not 2.4 nor inaccessible
 291                                 oval = values['bootcd_version']
 292                                 if "BootCD" in oval:
 293                                         values['bootcd_version'] = oval
 294                                         if "v2" in oval and \
 295                                                 ( nodename is not "planetlab1.cs.unc.edu" and \
 296                                                   nodename is not "planetlab2.cs.unc.edu" ):
 297                                                 values['observed_category'] = 'OLDBOOTCD'
 298                                 else:
 299                                         values['bootcd_version'] = ""
 300                         else:
 301                                 values['bootcd_version'] = ""
 302
 303                         oval = values['nm_status']
 304                         if "nm.py" in oval:
 305                                 values['nm_status'] = "Y"
 306                         else:
 307                                 values['nm_status'] = "N"
 308
 309                         continue_slice_check = True
 310                         oval = values['princeton_comon_dir']
 311                         if "princeton_comon_dir" in oval:
 312                                 values['princeton_comon_dir'] = True
 313                         else:
 314                                 values['princeton_comon_dir'] = False
 315                                 continue_slice_check = False
 316
 317                         if continue_slice_check:
 318                                 oval = values['princeton_comon_running']
 319                                 if len(oval) > len('/proc/virtual/'):
 320                                         values['princeton_comon_running'] = True
 321                                 else:
 322                                         values['princeton_comon_running'] = False
 323                                         continue_slice_check = False
 324                         else:
 325                                 values['princeton_comon_running'] = False
 326
 327                         if continue_slice_check:
 328                                 oval = values['princeton_comon_procs']
 329                                 values['princeton_comon_procs'] = int(oval)
 330                         else:
 331                                 values['princeton_comon_procs'] = None
 332
 333
 334                         if nodename in cohash:
 335                                 values['comon_stats'] = cohash[nodename]
 336                         else:
 337                                 values['comon_stats'] = {'resptime':  '-1',
 338                                                                                 'uptime':    '-1',
 339                                                                                 'sshstatus': '-1',
 340                                                                                 'lastcotop': '-1',
 341                                                                                 'cpuspeed' : "null",
 342                                                                                 'disksize' : 'null',
 343                                                                                 'memsize'  : 'null'}
 344                         # include output value
 345                         ### GET PLC NODE ######################
 346                         d_node = plccache.GetNodeByName(nodename)
 347                         values['plc_node_stats'] = d_node
 348
 349                         ##### NMAP  ###################
 350                         (n, v) = self.collectNMAP(nodename, None)
 351                         values.update(v)
 352
 353                         ### GET PLC PCU ######################
 354                         site_id = -1
 355                         d_pcu = None
 356                         if d_node:
 357                                 pcu = d_node['pcu_ids']
 358                                 if len(pcu) > 0:
 359                                         d_pcu = pcu[0]
 360
 361                                 site_id = d_node['site_id']
 362
 363                         values['plc_pcuid'] = d_pcu
 364
 365                         ### GET PLC SITE ######################
 366                         plc_lock.acquire()
 367                         d_site = None
 368                         values['loginbase'] = ""
 369                         try:
 370                                 d_site = plccache.GetSitesById([ site_id ])[0]
 371                                 #d_site = plc.getSites({'site_id': site_id},
 372                                 #                                       ['max_slices', 'slice_ids', 'node_ids', 'login_base'])[0]
 373                                 values['loginbase'] = d_site['login_base']
 374                         except:
 375                                 traceback.print_exc()
 376                         plc_lock.release()
 377
 378                         values['plc_site_stats'] = d_site
 379                         values['date_checked'] = datetime.now()
 380                 except:
 381                         print traceback.print_exc()
 382
 383                 return (nodename, values)
 384
 385 def internalprobe(hostname):
 386         #fbsync = FindbadNodeRecordSync.findby_or_create(hostname="global",
 387         #                                                                                               if_new_set={'round' : 1})
 388         scannode = ScanNodeInternal() # fbsync.round)
 389         try:
 390                 (nodename, values) = scannode.collectInternal(hostname, {})
 391                 scannode.record(None, (nodename, values))
 392                 session.flush()
 393                 return True
 394         except:
 395                 print traceback.print_exc()
 396                 return False
 397
 398 def externalprobe(hostname):
 399         #fbsync = FindbadNodeRecordSync.findby_or_create(hostname="global",
 400         #                                                                                               if_new_set={'round' : 1})
 401         scannode = ScanNodeInternal() # fbsync.round)
 402         try:
 403                 (nodename, values) = scannode.collectNMAP(hostname, {})
 404                 scannode.record(None, (nodename, values))
 405                 session.flush()
 406                 return True
 407         except:
 408                 print traceback.print_exc()
 409                 return False
 410
 411 class ScanPCU(ScanInterface):
 412         recordclass = FindbadPCURecord
 413         syncclass = None
 414         primarykey = 'plc_pcuid'
 415
 416         def collectInternal(self, pcuname, cohash):
 417
 418                 continue_probe = True
 419                 errors = None
 420                 values = {'reboot_trial_status' : 'novalue'}
 421                 ### GET PCU ######################
 422                 try:
 423                         b_except = False
 424                         try:
 425                                 v = get_plc_pcu_values(pcuname)
 426                                 if v['hostname'] is not None: v['hostname'] = v['hostname'].strip()
 427                                 if v['ip'] is not None: v['ip'] = v['ip'].strip()
 428
 429                                 if v is not None:
 430                                         values['plc_pcu_stats'] = v
 431                                 else:
 432                                         continue_probe = False
 433                         except:
 434                                 b_except = True
 435                                 traceback.print_exc()
 436                                 continue_probe = False
 437
 438                         if b_except or not continue_probe: return (None, None, None)
 439
 440                         #### RUN NMAP ###############################
 441                         if continue_probe:
 442                                 nmap = command.CMD()
 443                                 print "nmap -oG - -P0 -p22,23,80,443,5869,9100,16992 %s | grep Host:" % reboot.pcu_name(values['plc_pcu_stats'])
 444                                 (oval,eval) = nmap.run_noexcept("nmap -oG - -P0 -p22,23,80,443,5869,9100,16992 %s | grep Host:" % reboot.pcu_name(values['plc_pcu_stats']))
 445                                 # NOTE: an empty / error value for oval, will still work.
 446                                 (values['port_status'], continue_probe) = nmap_port_status(oval)
 447                         else:
 448                                 values['port_status'] = None
 449
 450                         #### COMPLETE ENTRY   #######################
 451
 452                         values['entry_complete'] = []
 453                         #if values['protocol'] is None or values['protocol'] is "":
 454                         #       values['entry_complete'] += ["protocol"]
 455                         if values['plc_pcu_stats']['model'] is None or values['plc_pcu_stats']['model'] is "":
 456                                 values['entry_complete'] += ["model"]
 457                                 # Cannot continue due to this condition
 458                                 continue_probe = False
 459
 460                         if values['plc_pcu_stats']['password'] is None or values['plc_pcu_stats']['password'] is "":
 461                                 values['entry_complete'] += ["password"]
 462                                 # Cannot continue due to this condition
 463                                 continue_probe = False
 464
 465                         if len(values['entry_complete']) > 0:
 466                                 continue_probe = False
 467
 468                         if values['plc_pcu_stats']['hostname'] is None or values['plc_pcu_stats']['hostname'] is "":
 469                                 values['entry_complete'] += ["hostname"]
 470                         if values['plc_pcu_stats']['ip'] is None or values['plc_pcu_stats']['ip'] is "":
 471                                 values['entry_complete'] += ["ip"]
 472
 473                         # If there are no nodes associated with this PCU, then we cannot continue.
 474                         if len(values['plc_pcu_stats']['node_ids']) == 0:
 475                                 continue_probe = False
 476                                 values['entry_complete'] += ['nodeids']
 477
 478
 479                         #### DNS and IP MATCH #######################
 480                         if values['plc_pcu_stats']['hostname'] is not None and values['plc_pcu_stats']['hostname'] is not "" and \
 481                            values['plc_pcu_stats']['ip'] is not None and values['plc_pcu_stats']['ip'] is not "":
 482                                 try:
 483                                         ipaddr = socket.gethostbyname(values['plc_pcu_stats']['hostname'])
 484                                         if ipaddr == values['plc_pcu_stats']['ip']:
 485                                                 values['dns_status'] = "DNS-OK"
 486                                         else:
 487                                                 values['dns_status'] = "DNS-MISMATCH"
 488                                                 values['plc_pcu_stats']['hostname'] = values['plc_pcu_stats']['ip']
 489
 490                                 except Exception, err:
 491                                         values['dns_status'] = "DNS-NOENTRY"
 492                                         values['plc_pcu_stats']['hostname'] = values['plc_pcu_stats']['ip']
 493                         else:
 494                                 if values['plc_pcu_stats']['ip'] is not None and values['plc_pcu_stats']['ip'] is not "":
 495                                         values['dns_status'] = "NOHOSTNAME"
 496                                         values['plc_pcu_stats']['hostname'] = values['plc_pcu_stats']['ip']
 497                                 else:
 498                                         values['dns_status'] = "NO-DNS-OR-IP"
 499                                         values['plc_pcu_stats']['hostname'] = "No_entry_in_DB"
 500                                         continue_probe = False
 501
 502
 503                         ######  DRY RUN  ############################
 504                         if continue_probe and 'node_ids' in values['plc_pcu_stats'] and \
 505                                 len(values['plc_pcu_stats']['node_ids']) > 0:
 506                                 rb_ret = reboot.reboot_test_new(values['plc_pcu_stats']['nodenames'][0],
 507                                                                                                 values, 1, True)
 508                         else:
 509                                 rb_ret = "Not_Run" # No nodes to test"
 510
 511                         values['reboot_trial_status'] = rb_ret
 512
 513                 except:
 514                         print "____________________________________"
 515                         print values
 516                         errors = values
 517                         print "____________________________________"
 518                         errors['traceback'] = traceback.format_exc()
 519                         print errors['traceback']
 520                         values['reboot_trial_status'] = str(errors['traceback'])
 521                         print values
 522
 523                 values['entry_complete']=" ".join(values['entry_complete'])
 524
 525                 values['date_checked'] = datetime.now()
 526                 return (pcuname, values)
 527