monitor/wrapper/plc.py

   1 #
   2 # plc.py
   3 #
   4 # Helper functions that minipulate the PLC api.
   5 #
   6 # Faiyaz Ahmed <faiyaza@cs.princeton.edu
   7 #
   8 # $Id: plc.py,v 1.18 2007/08/29 17:26:50 soltesz Exp $
   9 #
  10
  11 import xml, xmlrpclib
  12 import logging
  13 import time
  14 import traceback
  15 from monitor import database
  16
  17 # note: this needs to be consistent with the value in PLEWWW/planetlab/includes/plc_functions.php
  18 PENDING_CONSORTIUM_ID = 0
  19 # not used in monitor
  20 #APPROVED_CONSORTIUM_ID = 999999
  21
  22 try:
  23         from monitor import config
  24         debug = config.debug
  25         XMLRPC_SERVER=config.API_SERVER
  26 except:
  27         debug = False
  28         # NOTE: this host is used by default when there are no auth files.
  29         XMLRPC_SERVER="https://boot.planet-lab.org/PLCAPI/"
  30
  31 logger = logging.getLogger("monitor")
  32
  33 class Auth:
  34         def __init__(self, username=None, password=None, **kwargs):
  35                 if 'session' in kwargs:
  36                         self.auth= { 'AuthMethod' : 'session',
  37                                         'session' : kwargs['session'] }
  38                 else:
  39                         if username==None and password==None:
  40                                 self.auth = {'AuthMethod': "anonymous"}
  41                         else:
  42                                 self.auth = {'Username' : username,
  43                                                         'AuthMethod' : 'password',
  44                                                         'AuthString' : password}
  45
  46
  47 # NOTE: by default, use anonymous access, but if auth files are
  48 #       configured, use them, with their auth definitions.
  49 auth = Auth()
  50 try:
  51         from monitor import config
  52         auth.auth = {'Username' : config.API_AUTH_USER,
  53                      'AuthMethod' : 'password',
  54                                  'AuthString' : config.API_AUTH_PASSWORD}
  55         auth.server = config.API_SERVER
  56 except:
  57         try:
  58                 import auth
  59                 auth.server = auth.plc
  60         except:
  61                 auth = Auth()
  62                 auth.server = XMLRPC_SERVER
  63
  64 global_error_count = 0
  65
  66 class PLC:
  67         def __init__(self, auth, url):
  68                 self.auth = auth
  69                 self.url = url
  70                 self.api = xmlrpclib.Server(self.url, verbose=False, allow_none=True)
  71
  72         def __getattr__(self, name):
  73                 method = getattr(self.api, name)
  74                 if method is None:
  75                         raise AssertionError("method does not exist")
  76
  77                 try:
  78                         return lambda *params : method(self.auth, *params)
  79                 except xmlrpclib.ProtocolError:
  80                         traceback.print_exc()
  81                         global_error_count += 1
  82                         if global_error_count >= 10:
  83                                 print "maximum error count exceeded; exiting..."
  84                                 sys.exit(1)
  85                         else:
  86                                 print "%s errors have occurred" % global_error_count
  87                         raise Exception("ProtocolError continuing")
  88
  89         def __repr__(self):
  90                 return self.api.__repr__()
  91
  92
  93 class CachedPLC(PLC):
  94
  95         def _param_to_str(self, name, *params):
  96                 fields = len(params)
  97                 retstr = ""
  98                 retstr += "%s-" % name
  99                 for x in params:
 100                         retstr += "%s-" % x
 101                 return retstr[:-1]
 102
 103         def __getattr__(self, name):
 104                 method = getattr(self.api, name)
 105                 if method is None:
 106                         raise AssertionError("method does not exist")
 107
 108                 def run_or_returncached(*params):
 109                         cachename = self._param_to_str(name, *params)
 110                         #print "cachename is %s" % cachename
 111                         if hasattr(config, 'refresh'):
 112                                 refresh = config.refresh
 113                         else:
 114                                 refresh = False
 115
 116                         if 'Get' in name:
 117                                 if not database.cachedRecently(cachename):
 118                                         load_old_cache = False
 119                                         try:
 120                                                 values = method(self.auth, *params)
 121                                         except:
 122                                                 print "Call %s FAILED: Using old cached data" % cachename
 123                                                 load_old_cache = True
 124
 125                                         if load_old_cache:
 126                                                 values = database.dbLoad(cachename)
 127                                         else:
 128                                                 database.dbDump(cachename, values)
 129
 130                                         return values
 131                                 else:
 132                                         values = database.dbLoad(cachename)
 133                                         return values
 134                         else:
 135                                 return method(self.auth, *params)
 136
 137                 return run_or_returncached
 138
 139 api = PLC(auth.auth, auth.server)
 140 cacheapi = CachedPLC(auth.auth, auth.server)
 141
 142
 143 def getAPI(url):
 144         return xmlrpclib.Server(url, verbose=False, allow_none=True)
 145
 146 def getNodeAPI(session):
 147         nodeauth = Auth(session=session)
 148         return PLC(nodeauth.auth, auth.server)
 149
 150 def getAuthAPI(url=None):
 151         if url:
 152                 return PLC(auth.auth, url)
 153         else:
 154                 return PLC(auth.auth, auth.server)
 155
 156 def getCachedAuthAPI():
 157         return CachedPLC(auth.auth, auth.server)
 158
 159 def getSessionAPI(session, server):
 160         nodeauth = Auth(session=session)
 161         return PLC(nodeauth.auth, server)
 162 def getUserAPI(username, password, server):
 163         auth = Auth(username,password)
 164         return PLC(auth.auth, server)
 165
 166 def getTechEmails(loginbase):
 167         """
 168                 For the given site, return all user email addresses that have the 'tech' role.
 169         """
 170         api = getAuthAPI()
 171         # get site details.
 172         s = api.GetSites(loginbase)[0]
 173         # get people at site
 174         p = api.GetPersons(s['person_ids'])
 175         # pull out those with the right role.
 176         emails = [ person['email'] for person in filter(lambda x: 'tech' in x['roles'], p) ]
 177         return emails
 178
 179 def getPIEmails(loginbase):
 180         """
 181                 For the given site, return all user email addresses that have the 'tech' role.
 182         """
 183         api = getAuthAPI()
 184         # get site details.
 185         s = api.GetSites(loginbase)[0]
 186         # get people at site
 187         p = api.GetPersons(s['person_ids'])
 188         # pull out those with the right role.
 189         emails = [ person['email'] for person in filter(lambda x: 'pi' in x['roles'], p) ]
 190         return emails
 191
 192 def getSliceUserEmails(loginbase):
 193         """
 194                 For the given site, return all user email addresses that have the 'tech' role.
 195         """
 196         api = getAuthAPI()
 197         # get site details.
 198         s = api.GetSites(loginbase)[0]
 199         # get people at site
 200         slices = api.GetSlices(s['slice_ids'])
 201         people = []
 202         for slice in slices:
 203                 people += api.GetPersons(slice['person_ids'])
 204         # pull out those with the right role.
 205         emails = [ person['email'] for person in filter(lambda x: 'pi' in x['roles'], people) ]
 206         unique_emails = [ x for x in set(emails) ]
 207         return unique_emails
 208
 209 '''
 210 Returns list of nodes in dbg as reported by PLC
 211 '''
 212 def nodesDbg():
 213         dbgNodes = []
 214         api = xmlrpclib.Server(auth.server, verbose=False)
 215         anon = {'AuthMethod': "anonymous"}
 216         for node in api.GetNodes(anon, {"boot_state":"dbg"},["hostname"]):
 217                 dbgNodes.append(node['hostname'])
 218         logger.info("%s nodes in debug according to PLC." %len(dbgNodes))
 219         return dbgNodes
 220
 221
 222 '''
 223 Returns loginbase for given nodename
 224 '''
 225 def siteId(nodename):
 226         api = xmlrpclib.Server(auth.server, verbose=False, allow_none=True)
 227         site_id = api.GetNodes (auth.auth, {"hostname": nodename}, ['site_id'])
 228         if len(site_id) == 1:
 229                 loginbase = api.GetSites (auth.auth, site_id[0], ["login_base"])
 230                 return loginbase[0]['login_base']
 231         else:
 232                 print "Not nodes returned!!!!"
 233
 234 '''
 235 Returns list of slices for a site.
 236 '''
 237 def slices(loginbase):
 238         siteslices = []
 239         api = xmlrpclib.Server(auth.server, verbose=False, allow_none=True)
 240         sliceids = api.GetSites (auth.auth, {"login_base" : loginbase}, ["slice_ids"])[0]['slice_ids']
 241         for slice in api.GetSlices(auth.auth, {"slice_id" : sliceids}, ["name"]):
 242                 siteslices.append(slice['name'])
 243         return siteslices
 244
 245 '''
 246 Returns dict of PCU info of a given node.
 247 '''
 248 def getpcu(nodename):
 249         api = xmlrpclib.Server(auth.server, verbose=False, allow_none=True)
 250         anon = {'AuthMethod': "anonymous"}
 251         nodeinfo = api.GetNodes(auth.auth, {"hostname": nodename}, ["pcu_ids", "ports"])[0]
 252         if nodeinfo['pcu_ids']:
 253                 print nodeinfo
 254                 sitepcu = api.GetPCUs(auth.auth, nodeinfo['pcu_ids'])[0]
 255                 print sitepcu
 256                 print nodeinfo["ports"]
 257                 sitepcu[nodename] = nodeinfo["ports"][0]
 258                 return sitepcu
 259         else:
 260                 logger.info("%s doesn't have PCU" % nodename)
 261                 return False
 262
 263 def GetPCUs(filter=None, fields=None):
 264         api = xmlrpclib.Server(auth.server, verbose=False, allow_none=True)
 265         pcu_list = api.GetPCUs(auth.auth, filter, fields)
 266         return pcu_list
 267
 268 '''
 269 Returns all site nodes for site id (loginbase).
 270 '''
 271 def getSiteNodes(loginbase, fields=None):
 272         api = xmlrpclib.Server(auth.server, verbose=False)
 273         nodelist = []
 274         anon = {'AuthMethod': "anonymous"}
 275         try:
 276                 nodeids = api.GetSites(anon, {"login_base": loginbase}, fields)[0]['node_ids']
 277                 for node in api.GetNodes(anon, {"node_id": nodeids}, ['hostname']):
 278                         nodelist.append(node['hostname'])
 279         except Exception, exc:
 280                 logger.info("getSiteNodes:  %s" % exc)
 281                 print "getSiteNodes:  %s" % exc
 282         return nodelist
 283
 284
 285 def getPersons(filter=None, fields=None):
 286         api = xmlrpclib.Server(auth.server, verbose=False, allow_none=True)
 287         persons = []
 288         try:
 289                 persons = api.GetPersons(auth.auth, filter, fields)
 290         except Exception, exc:
 291                 print "getPersons:  %s" % exc
 292                 logger.info("getPersons:  %s" % exc)
 293         return persons
 294
 295 def getSites(filter=None, fields=None):
 296         api = xmlrpclib.Server(auth.server, verbose=False, allow_none=True)
 297         sites = []
 298         anon = {'AuthMethod': "anonymous"}
 299         try:
 300                 #sites = api.GetSites(anon, filter, fields)
 301                 sites = api.GetSites(auth.auth, filter, fields)
 302         except Exception, exc:
 303                 traceback.print_exc()
 304                 print "getSites:  %s" % exc
 305                 logger.info("getSites:  %s" % exc)
 306         return sites
 307
 308 def getSiteNodes2(loginbase):
 309         api = xmlrpclib.Server(auth.server, verbose=False)
 310         nodelist = []
 311         anon = {'AuthMethod': "anonymous"}
 312         try:
 313                 nodeids = api.GetSites(anon, {"login_base": loginbase})[0]['node_ids']
 314                 nodelist += getNodes({'node_id':nodeids})
 315         except Exception, exc:
 316                 logger.info("getSiteNodes2:  %s" % exc)
 317         return nodelist
 318
 319 def getNodeNetworks(filter=None):
 320         api = xmlrpclib.Server(auth.server, verbose=False, allow_none=True)
 321         nodenetworks = api.GetInterfaces(auth.auth, filter, None)
 322         return nodenetworks
 323
 324 def getNodes(filter=None, fields=None):
 325         api = xmlrpclib.Server(auth.server, verbose=False, allow_none=True)
 326         nodes = api.GetNodes(auth.auth, filter, fields)
 327                         #['boot_state', 'hostname',
 328                         #'site_id', 'date_created', 'node_id', 'version', 'interface_ids',
 329                         #'last_updated', 'peer_node_id', 'ssh_rsa_key' ])
 330         return nodes
 331
 332
 333 # Check if the site is a pending site that needs to be approved.
 334 def isPendingSite(loginbase):
 335         api = xmlrpclib.Server(auth.server, verbose=False)
 336         try:
 337                 site = api.GetSites(auth.auth, loginbase)[0]
 338         except Exception, exc:
 339                 login.info("ERROR: No site %s" % loginbase)
 340                 return False
 341
 342         if not site['enabled'] and site['ext_consortium_id'] == PENDING_CONSORTIUM_ID:
 343                 return True
 344
 345         return False
 346
 347
 348 '''
 349 Sets boot state of a node.
 350 '''
 351 def nodeBootState(nodename, state):
 352         api = xmlrpclib.Server(auth.server, verbose=False)
 353         try:
 354                 return api.UpdateNode(auth.auth, nodename, {'boot_state': state})
 355         except Exception, exc:
 356                 logger.info("nodeBootState:  %s" % exc)
 357
 358 def updateNodeKey(nodename, key):
 359         api = xmlrpclib.Server(auth.server, verbose=False)
 360         try:
 361                 return api.UpdateNode(auth.auth, nodename, {'key': key})
 362         except Exception, exc:
 363                 logger.info("updateNodeKey:  %s" % exc)
 364
 365 '''
 366 Sends Ping Of Death to node.
 367 '''
 368 def nodePOD(nodename):
 369         api = xmlrpclib.Server(auth.server, verbose=False)
 370         logger.info("Sending POD to %s" % nodename)
 371         try:
 372                 if not debug:
 373                         return api.RebootNode(auth.auth, nodename)
 374         except Exception, exc:
 375                         logger.info("nodePOD:  %s" % exc)
 376
 377 '''
 378 Freeze all site slices.
 379 '''
 380 def suspendSiteSlices(loginbase):
 381         if isPendingSite(loginbase):
 382                 msg = "INFO: suspendSiteSlices: Pending Site (%s)" % loginbase
 383                 print msg
 384                 logger.info(msg)
 385                 return
 386
 387         api = xmlrpclib.Server(auth.server, verbose=False)
 388         for slice in slices(loginbase):
 389                 logger.info("Suspending slice %s" % slice)
 390                 try:
 391                         if not debug:
 392                                 api.AddSliceAttribute(auth.auth, slice, "enabled", "0")
 393                 except Exception, exc:
 394                         logger.info("suspendSlices:  %s" % exc)
 395
 396 '''
 397 Freeze all site slices.
 398 '''
 399 def suspendSlices(nodename):
 400         loginbase = siteId(nodename)
 401         suspendSiteSlices(loginbase)
 402
 403
 404 def enableSiteSlices(loginbase):
 405         if isPendingSite(loginbase):
 406                 msg = "INFO: enableSiteSlices: Pending Site (%s)" % loginbase
 407                 print msg
 408                 logger.info(msg)
 409                 return
 410
 411         api = xmlrpclib.Server(auth.server, verbose=False, allow_none=True)
 412         for slice in slices(loginbase):
 413                 logger.info("Enabling slices %s" % slice)
 414                 try:
 415                         if not debug:
 416                                 slice_list = api.GetSlices(auth.auth, {'name': slice}, None)
 417                                 if len(slice_list) == 0:
 418                                         return
 419                                 slice_id = slice_list[0]['slice_id']
 420                                 l_attr = api.GetSliceAttributes(auth.auth, {'slice_id': slice_id}, None)
 421                                 for attr in l_attr:
 422                                         if "enabled" == attr['name'] and attr['value'] == "0":
 423                                                 logger.info("Deleted enable=0 attribute from slice %s" % slice)
 424                                                 api.DeleteSliceAttribute(auth.auth, attr['slice_attribute_id'])
 425                 except Exception, exc:
 426                         logger.info("enableSiteSlices: %s" % exc)
 427                         print "exception: %s" % exc
 428
 429 def enableSlices(nodename):
 430         loginbase = siteId(nodename)
 431         enableSiteSlices(loginbase)
 432
 433
 434 #I'm commenting this because this really should be a manual process.
 435 #'''
 436 #Enable suspended site slices.
 437 #'''
 438 #def enableSlices(nodename, slicelist):
 439 #       api = xmlrpclib.Server(auth.server, verbose=False)
 440 #       for slice in  slices(siteId(nodename)):
 441 #               logger.info("Suspending slice %s" % slice)
 442 #               api.SliceAttributeAdd(auth.auth, slice, "plc_slice_state", {"state" : "suspended"})
 443 #
 444 def enableSiteSliceCreation(loginbase):
 445         if isPendingSite(loginbase):
 446                 msg = "INFO: enableSiteSliceCreation: Pending Site (%s)" % loginbase
 447                 print msg
 448                 logger.info(msg)
 449                 return
 450
 451         api = xmlrpclib.Server(auth.server, verbose=False, allow_none=True)
 452         try:
 453                 logger.info("Enabling slice creation for site %s" % loginbase)
 454                 if not debug:
 455                         logger.info("\tcalling UpdateSite(%s, enabled=True)" % loginbase)
 456                         api.UpdateSite(auth.auth, loginbase, {'enabled': True})
 457         except Exception, exc:
 458                 print "ERROR: enableSiteSliceCreation:  %s" % exc
 459                 logger.info("ERROR: enableSiteSliceCreation:  %s" % exc)
 460
 461 def enableSliceCreation(nodename):
 462         loginbase = siteId(nodename)
 463         enableSiteSliceCreation(loginbase)
 464
 465 '''
 466 Removes site's ability to create slices. Returns previous max_slices
 467 '''
 468 def removeSiteSliceCreation(loginbase):
 469         print "removeSiteSliceCreation(%s)" % loginbase
 470
 471         if isPendingSite(loginbase):
 472                 msg = "INFO: removeSiteSliceCreation: Pending Site (%s)" % loginbase
 473                 print msg
 474                 logger.info(msg)
 475                 return
 476
 477         api = xmlrpclib.Server(auth.server, verbose=False)
 478         try:
 479                 logger.info("Removing slice creation for site %s" % loginbase)
 480                 if not debug:
 481                         api.UpdateSite(auth.auth, loginbase, {'enabled': False})
 482         except Exception, exc:
 483                 logger.info("removeSiteSliceCreation:  %s" % exc)
 484
 485 '''
 486 Removes ability to create slices. Returns previous max_slices
 487 '''
 488 def removeSliceCreation(nodename):
 489         loginbase = siteId(nodename)
 490         removeSiteSliceCreation(loginbase)
 491
 492
 493 '''
 494 QED
 495 '''
 496 #def enableSliceCreation(nodename, maxslices):
 497 #       api = xmlrpclib.Server(auth.server, verbose=False)
 498 #       anon = {'AuthMethod': "anonymous"}
 499 #       siteid = api.AnonAdmQuerySite (anon, {"node_hostname": nodename})
 500 #       if len(siteid) == 1:
 501 #               logger.info("Enabling slice creation for site %s" % siteId(nodename))
 502 #               try:
 503 #                       if not debug:
 504 #                               api.AdmUpdateSite(auth.auth, siteid[0], {"max_slices" : maxslices})
 505 #               except Exception, exc:
 506 #                       logger.info("API:  %s" % exc)
 507 #       else:
 508 #               logger.debug("Cant find site for %s.  Cannot enable creation." % nodename)
 509
 510 def main():
 511         logger.setLevel(logging.DEBUG)
 512         ch = logging.StreamHandler()
 513         ch.setLevel(logging.DEBUG)
 514         formatter = logging.Formatter('logger - %(message)s')
 515         ch.setFormatter(formatter)
 516         logger.addHandler(ch)
 517         #print getpcu("kupl2.ittc.ku.edu")
 518         #print getpcu("planetlab1.cse.msu.edu")
 519         #print getpcu("alice.cs.princeton.edu")
 520         #print nodesDbg()
 521         #nodeBootState("alice.cs.princeton.edu", "boot")
 522         #freezeSite("alice.cs.princeton.edu")
 523         print removeSliceCreation("alice.cs.princeton.edu")
 524         #enableSliceCreation("alice.cs.princeton.edu", 1024)
 525         #print getSiteNodes("princeton")
 526         #print siteId("alice.cs.princeton.edu")
 527         #print nodePOD("alice.cs.princeton.edu")
 528         #print slices("princeton")
 529
 530 if __name__=="__main__":
 531         main()