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
  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_plcnodes
  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                         print traceback.print_exc()
 161                         pass
 162
 163 class ScanNodeInternal(ScanInterface):
 164         recordclass = FindbadNodeRecord
 165         #syncclass = FindbadNodeRecordSync
 166         syncclass = None
 167         primarykey = 'hostname'
 168
 169         def collectNMAP(self, nodename, cohash):
 170                 #### RUN NMAP ###############################
 171                 values = {}
 172                 nmap = command.CMD()
 173                 print "nmap -oG - -P0 -p22,80,806 %s | grep Host:" % nodename
 174                 (oval,eval) = nmap.run_noexcept("nmap -oG - -P0 -p22,80,806 %s | grep Host:" % nodename)
 175                 # NOTE: an empty / error value for oval, will still work.
 176                 (values['port_status'], continue_probe) = nmap_port_status(oval)
 177
 178                 values['date_checked'] = datetime.now()
 179
 180                 return (nodename, values)
 181
 182         def collectInternal(self, nodename, cohash):
 183                 ### RUN PING ######################
 184                 ping = command.CMD()
 185                 (oval,errval) = ping.run_noexcept("ping -c 1 -q %s | grep rtt" % nodename)
 186
 187                 try:
 188                         values = {}
 189
 190                         if oval == "":
 191                                 # An error occurred
 192                                 values['ping_status'] = False
 193                         else:
 194                                 values['ping_status'] = True
 195
 196                         try:
 197                                 for port in [22, 806]:
 198                                         ssh = command.SSH('root', nodename, port)
 199
 200                                         (oval, errval) = ssh.run_noexcept2(""" <<\EOF
 201                                                 echo "{"
 202                                                 echo '  "kernel_version":"'`uname -a`'",'
 203                                                 echo '  "bmlog":"'`ls /tmp/bm.log`'",'
 204                                                 echo '  "bootcd_version":"'`cat /mnt/cdrom/bootme/ID`'",'
 205                                                 echo '  "nm_status":"'`ps ax | grep nm.py | grep -v grep`'",'
 206                                                 echo '  "fs_status":"'`touch /var/log/monitor 2>&1`'",'
 207                                                 echo '  "dns_status":"'`host boot.planet-lab.org 2>&1`'",'
 208                                                 echo '  "princeton_comon_dir":"'`ls -d /vservers/princeton_comon`'",'
 209
 210                                                 ID=`grep princeton_comon /etc/passwd | awk -F : '{if ( $3 > 500 ) { print $3}}'`
 211                                                 echo '  "princeton_comon_running":"'`ls -d /proc/virtual/$ID`'",'
 212                                                 echo '  "princeton_comon_procs":"'`vps ax | grep $ID | grep -v grep | wc -l`'",'
 213                                                 echo "}"
 214 EOF                             """)
 215
 216                                         values['ssh_error'] = errval
 217                                         if len(oval) > 0:
 218                                                 #print "OVAL: %s" % oval
 219                                                 values.update(eval(oval))
 220                                                 values['ssh_portused'] = port
 221                                                 break
 222                                         else:
 223                                                 values.update({'kernel_version': "", 'bmlog' : "", 'bootcd_version' : '',
 224                                                                                 'nm_status' : '',
 225                                                                                 'fs_status' : '',
 226                                                                                 'dns_status' : '',
 227                                                                                 'princeton_comon_dir' : "",
 228                                                                                 'princeton_comon_running' : "",
 229                                                                                 'princeton_comon_procs' : "", 'ssh_portused' : None})
 230                         except:
 231                                 print traceback.print_exc()
 232                                 sys.exit(1)
 233
 234                         ### RUN SSH ######################
 235                         b_getbootcd_id = True
 236
 237                         oval = values['kernel_version']
 238                         if "2.6.17" in oval or "2.6.2" in oval:
 239                                 values['ssh_status'] = True
 240                                 values['observed_category'] = 'PROD'
 241                                 if "bm.log" in values['bmlog']:
 242                                         values['observed_status'] = 'DEBUG'
 243                                 else:
 244                                         values['observed_status'] = 'BOOT'
 245                         elif "2.6.12" in oval or "2.6.10" in oval:
 246                                 values['ssh_status'] = True
 247                                 values['observed_category'] = 'OLDPROD'
 248                                 if "bm.log" in values['bmlog']:
 249                                         values['observed_status'] = 'DEBUG'
 250                                 else:
 251                                         values['observed_status'] = 'BOOT'
 252
 253                         # NOTE: on 2.6.8 kernels, with 4.2 bootstrapfs, the chroot
 254                         #       command fails.  I have no idea why.
 255                         elif "2.4" in oval or "2.6.8" in oval:
 256                                 b_getbootcd_id = False
 257                                 values['ssh_status'] = True
 258                                 values['observed_category'] = 'OLDBOOTCD'
 259                                 values['observed_status'] = 'DEBUG'
 260                         elif oval != "":
 261                                 values['ssh_status'] = True
 262                                 values['observed_category'] = 'UNKNOWN'
 263                                 if "bm.log" in values['bmlog']:
 264                                         values['observed_status'] = 'DEBUG'
 265                                 else:
 266                                         values['observed_status'] = 'BOOT'
 267                         else:
 268                                 # An error occurred.
 269                                 b_getbootcd_id = False
 270                                 values['ssh_status'] = False
 271                                 values['observed_category'] = 'ERROR'
 272                                 values['observed_status'] = 'DOWN'
 273                                 val = errval.strip()
 274                                 values['ssh_error'] = val
 275                                 values['kernel_version'] = ""
 276
 277                         if b_getbootcd_id:
 278                                 # try to get BootCD for all nodes that are not 2.4 nor inaccessible
 279                                 oval = values['bootcd_version']
 280                                 if "BootCD" in oval:
 281                                         values['bootcd_version'] = oval
 282                                         if "v2" in oval and \
 283                                                 ( nodename is not "planetlab1.cs.unc.edu" and \
 284                                                   nodename is not "planetlab2.cs.unc.edu" ):
 285                                                 values['observed_category'] = 'OLDBOOTCD'
 286                                 else:
 287                                         values['bootcd_version'] = ""
 288                         else:
 289                                 values['bootcd_version'] = ""
 290
 291                         oval = values['nm_status']
 292                         if "nm.py" in oval:
 293                                 values['nm_status'] = "Y"
 294                         else:
 295                                 values['nm_status'] = "N"
 296
 297                         continue_slice_check = True
 298                         oval = values['princeton_comon_dir']
 299                         if "princeton_comon_dir" in oval:
 300                                 values['princeton_comon_dir'] = True
 301                         else:
 302                                 values['princeton_comon_dir'] = False
 303                                 continue_slice_check = False
 304
 305                         if continue_slice_check:
 306                                 oval = values['princeton_comon_running']
 307                                 if len(oval) > len('/proc/virtual/'):
 308                                         values['princeton_comon_running'] = True
 309                                 else:
 310                                         values['princeton_comon_running'] = False
 311                                         continue_slice_check = False
 312                         else:
 313                                 values['princeton_comon_running'] = False
 314
 315                         if continue_slice_check:
 316                                 oval = values['princeton_comon_procs']
 317                                 values['princeton_comon_procs'] = int(oval)
 318                         else:
 319                                 values['princeton_comon_procs'] = None
 320
 321
 322                         if nodename in cohash:
 323                                 values['comon_stats'] = cohash[nodename]
 324                         else:
 325                                 values['comon_stats'] = {'resptime':  '-1',
 326                                                                                 'uptime':    '-1',
 327                                                                                 'sshstatus': '-1',
 328                                                                                 'lastcotop': '-1',
 329                                                                                 'cpuspeed' : "null",
 330                                                                                 'disksize' : 'null',
 331                                                                                 'memsize'  : 'null'}
 332                         # include output value
 333                         ### GET PLC NODE ######################
 334                         plc_lock.acquire()
 335                         d_node = None
 336                         try:
 337                                 d_node = plc.getNodes({'hostname': nodename}, ['pcu_ids', 'site_id',
 338                                                                                 'date_created', 'last_updated',
 339                                                                                 'last_contact', 'boot_state', 'nodegroup_ids'])[0]
 340                         except:
 341                                 traceback.print_exc()
 342                         plc_lock.release()
 343                         values['plc_node_stats'] = d_node
 344
 345                         ##### NMAP  ###################
 346                         (n, v) = self.collectNMAP(nodename, None)
 347                         values.update(v)
 348
 349                         ### GET PLC PCU ######################
 350                         site_id = -1
 351                         d_pcu = None
 352                         if d_node:
 353                                 pcu = d_node['pcu_ids']
 354                                 if len(pcu) > 0:
 355                                         d_pcu = pcu[0]
 356
 357                                 site_id = d_node['site_id']
 358
 359                         values['plc_pcuid'] = d_pcu
 360
 361                         ### GET PLC SITE ######################
 362                         plc_lock.acquire()
 363                         d_site = None
 364                         values['loginbase'] = ""
 365                         try:
 366                                 d_site = plc.getSites({'site_id': site_id},
 367                                                                         ['max_slices', 'slice_ids', 'node_ids', 'login_base'])[0]
 368                                 values['loginbase'] = d_site['login_base']
 369                         except:
 370                                 traceback.print_exc()
 371                         plc_lock.release()
 372
 373                         values['plc_site_stats'] = d_site
 374                         values['date_checked'] = datetime.now()
 375                 except:
 376                         print traceback.print_exc()
 377
 378                 return (nodename, values)
 379
 380 def internalprobe(hostname):
 381         #fbsync = FindbadNodeRecordSync.findby_or_create(hostname="global",
 382         #                                                                                               if_new_set={'round' : 1})
 383         scannode = ScanNodeInternal() # fbsync.round)
 384         try:
 385                 (nodename, values) = scannode.collectInternal(hostname, {})
 386                 scannode.record(None, (nodename, values))
 387                 session.flush()
 388                 return True
 389         except:
 390                 print traceback.print_exc()
 391                 return False
 392
 393 def externalprobe(hostname):
 394         #fbsync = FindbadNodeRecordSync.findby_or_create(hostname="global",
 395         #                                                                                               if_new_set={'round' : 1})
 396         scannode = ScanNodeInternal() # fbsync.round)
 397         try:
 398                 (nodename, values) = scannode.collectNMAP(hostname, {})
 399                 scannode.record(None, (nodename, values))
 400                 session.flush()
 401                 return True
 402         except:
 403                 print traceback.print_exc()
 404                 return False
 405
 406 class ScanPCU(ScanInterface):
 407         recordclass = FindbadPCURecord
 408         syncclass = None
 409         primarykey = 'plc_pcuid'
 410
 411         def collectInternal(self, pcuname, cohash):
 412
 413                 continue_probe = True
 414                 errors = None
 415                 values = {'reboot_trial_status' : 'novalue'}
 416                 ### GET PCU ######################
 417                 try:
 418                         b_except = False
 419                         try:
 420                                 v = get_plc_pcu_values(pcuname)
 421                                 if v['hostname'] is not None: v['hostname'] = v['hostname'].strip()
 422                                 if v['ip'] is not None: v['ip'] = v['ip'].strip()
 423
 424                                 if v is not None:
 425                                         values['plc_pcu_stats'] = v
 426                                 else:
 427                                         continue_probe = False
 428                         except:
 429                                 b_except = True
 430                                 traceback.print_exc()
 431                                 continue_probe = False
 432
 433                         if b_except or not continue_probe: return (None, None, None)
 434
 435                         #### RUN NMAP ###############################
 436                         if continue_probe:
 437                                 nmap = command.CMD()
 438                                 print "nmap -oG - -P0 -p22,23,80,443,5869,9100,16992 %s | grep Host:" % reboot.pcu_name(values['plc_pcu_stats'])
 439                                 (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']))
 440                                 # NOTE: an empty / error value for oval, will still work.
 441                                 (values['port_status'], continue_probe) = nmap_port_status(oval)
 442                         else:
 443                                 values['port_status'] = None
 444
 445                         #### COMPLETE ENTRY   #######################
 446
 447                         values['entry_complete'] = []
 448                         #if values['protocol'] is None or values['protocol'] is "":
 449                         #       values['entry_complete'] += ["protocol"]
 450                         if values['plc_pcu_stats']['model'] is None or values['plc_pcu_stats']['model'] is "":
 451                                 values['entry_complete'] += ["model"]
 452                                 # Cannot continue due to this condition
 453                                 continue_probe = False
 454
 455                         if values['plc_pcu_stats']['password'] is None or values['plc_pcu_stats']['password'] is "":
 456                                 values['entry_complete'] += ["password"]
 457                                 # Cannot continue due to this condition
 458                                 continue_probe = False
 459
 460                         if len(values['entry_complete']) > 0:
 461                                 continue_probe = False
 462
 463                         if values['plc_pcu_stats']['hostname'] is None or values['plc_pcu_stats']['hostname'] is "":
 464                                 values['entry_complete'] += ["hostname"]
 465                         if values['plc_pcu_stats']['ip'] is None or values['plc_pcu_stats']['ip'] is "":
 466                                 values['entry_complete'] += ["ip"]
 467
 468                         # If there are no nodes associated with this PCU, then we cannot continue.
 469                         if len(values['plc_pcu_stats']['node_ids']) == 0:
 470                                 continue_probe = False
 471                                 values['entry_complete'] += ['nodeids']
 472
 473
 474                         #### DNS and IP MATCH #######################
 475                         if values['plc_pcu_stats']['hostname'] is not None and values['plc_pcu_stats']['hostname'] is not "" and \
 476                            values['plc_pcu_stats']['ip'] is not None and values['plc_pcu_stats']['ip'] is not "":
 477                                 try:
 478                                         ipaddr = socket.gethostbyname(values['plc_pcu_stats']['hostname'])
 479                                         if ipaddr == values['plc_pcu_stats']['ip']:
 480                                                 values['dns_status'] = "DNS-OK"
 481                                         else:
 482                                                 values['dns_status'] = "DNS-MISMATCH"
 483                                                 continue_probe = False
 484
 485                                 except Exception, err:
 486                                         values['dns_status'] = "DNS-NOENTRY"
 487                                         values['plc_pcu_stats']['hostname'] = values['plc_pcu_stats']['ip']
 488                         else:
 489                                 if values['plc_pcu_stats']['ip'] is not None and values['plc_pcu_stats']['ip'] is not "":
 490                                         values['dns_status'] = "NOHOSTNAME"
 491                                         values['plc_pcu_stats']['hostname'] = values['plc_pcu_stats']['ip']
 492                                 else:
 493                                         values['dns_status'] = "NO-DNS-OR-IP"
 494                                         values['plc_pcu_stats']['hostname'] = "No_entry_in_DB"
 495                                         continue_probe = False
 496
 497
 498                         ######  DRY RUN  ############################
 499                         if continue_probe and 'node_ids' in values['plc_pcu_stats'] and \
 500                                 len(values['plc_pcu_stats']['node_ids']) > 0:
 501                                 rb_ret = reboot.reboot_test_new(values['plc_pcu_stats']['nodenames'][0],
 502                                                                                                 values, 1, True)
 503                         else:
 504                                 rb_ret = "Not_Run" # No nodes to test"
 505
 506                         values['reboot_trial_status'] = rb_ret
 507
 508                 except:
 509                         print "____________________________________"
 510                         print values
 511                         errors = values
 512                         print "____________________________________"
 513                         errors['traceback'] = traceback.format_exc()
 514                         print errors['traceback']
 515                         values['reboot_trial_status'] = str(errors['traceback'])
 516                         print values
 517
 518                 values['entry_complete']=" ".join(values['entry_complete'])
 519
 520                 values['date_checked'] = datetime.now()
 521                 return (pcuname, values)
 522