-from __future__ import with_statement
-
-import sys
-import os, errno
-import logging
-import datetime
-from multiprocessing import Process
-from time import sleep
-
-import boto
-from boto.ec2.regioninfo import RegionInfo
-from boto.exception import EC2ResponseError
-from ConfigParser import ConfigParser
-from xmlbuilder import XMLBuilder
-from lxml import etree as ET
-from sqlobject import *
-
-from sfa.util.faults import InvalidRSpec
-from sfa.util.xrn import urn_to_hrn, Xrn
-from sfa.util.callids import Callids
-#comes with its own logging
-#from sfa.util.sfalogging import logger
-from sfa.util.version import version_core
-
-from sfa.trust.credential import Credential
-
-from sfa.rspecs.version_manager import VersionManager
-from sfa.rspecs.rspec import RSpec
-
-from sfa.planetlab.plaggregate import PlAggregate
-from sfa.planetlab.plslices import PlSlices
-from sfa.planetlab.plxrn import slicename_to_hrn
-
-##
-# Meta data of an instance.
-#
-class Meta(SQLObject):
- instance = SingleJoin('EucaInstance')
- state = StringCol(default = 'new')
- pub_addr = StringCol(default = None)
- pri_addr = StringCol(default = None)
- start_time = DateTimeCol(default = None)
-
-##
-# A representation of an Eucalyptus instance. This is a support class
-# for instance <-> slice mapping.
-#
-class EucaInstance(SQLObject):
- instance_id = StringCol(unique=True, default=None)
- kernel_id = StringCol()
- image_id = StringCol()
- ramdisk_id = StringCol()
- inst_type = StringCol()
- key_pair = StringCol()
- slice = ForeignKey('Slice')
- meta = ForeignKey('Meta')
-
- ##
- # Contacts Eucalyptus and tries to reserve this instance.
- #
- # @param botoConn A connection to Eucalyptus.
- # @param pubKeys A list of public keys for the instance.
- #
- def reserveInstance(self, botoConn, pubKeys):
- logger = logging.getLogger('EucaAggregate')
- logger.info('Reserving an instance: image: %s, kernel: ' \
- '%s, ramdisk: %s, type: %s, key: %s' % \
- (self.image_id, self.kernel_id, self.ramdisk_id,
- self.inst_type, self.key_pair))
-
- try:
- reservation = botoConn.run_instances(self.image_id,
- kernel_id = self.kernel_id,
- ramdisk_id = self.ramdisk_id,
- instance_type = self.inst_type,
- key_name = self.key_pair,
- user_data = pubKeys)
- for instance in reservation.instances:
- self.instance_id = instance.id
-
- # If there is an error, destroy itself.
- except EC2ResponseError as ec2RespErr:
- errTree = ET.fromstring(ec2RespErr.body)
- msg = errTree.find('.//Message')
- logger.error(msg.text)
- self.destroySelf()
-
-##
-# A representation of a PlanetLab slice. This is a support class
-# for instance <-> slice mapping.
-#
-class Slice(SQLObject):
- slice_hrn = StringCol()
- #slice_index = DatabaseIndex('slice_hrn')
- instances = MultipleJoin('EucaInstance')
-
-##
-# A class that builds the RSpec for Eucalyptus.
-#
-class EucaRSpecBuilder(object):
- ##
- # Initizes a RSpec builder
- #
- # @param cloud A dictionary containing data about a
- # cloud (ex. clusters, ip)
- def __init__(self, cloud):
- self.eucaRSpec = XMLBuilder(format = True, tab_step = " ")
- self.cloudInfo = cloud
-
- ##
- # Creates a request stanza.
- #
- # @param num The number of instances to create.
- # @param image The disk image id.
- # @param kernel The kernel image id.
- # @param keypair Key pair to embed.
- # @param ramdisk Ramdisk id (optional).
- #
- def __requestXML(self, num, image, kernel, keypair, ramdisk = ''):
- xml = self.eucaRSpec
- with xml.request:
- with xml.instances:
- xml << str(num)
- with xml.kernel_image(id=kernel):
- xml << ''
- if ramdisk == '':
- with xml.ramdisk:
- xml << ''
- else:
- with xml.ramdisk(id=ramdisk):
- xml << ''
- with xml.disk_image(id=image):
- xml << ''
- with xml.keypair:
- xml << keypair
-
- ##
- # Creates the cluster stanza.
- #
- # @param clusters Clusters information.
- #
- def __clustersXML(self, clusters):
- cloud = self.cloudInfo
- xml = self.eucaRSpec
-
- for cluster in clusters:
- instances = cluster['instances']
- with xml.cluster(id=cluster['name']):
- with xml.ipv4:
- xml << cluster['ip']
- with xml.vm_types:
- for inst in instances:
- with xml.vm_type(name=inst[0]):
- with xml.free_slots:
- xml << str(inst[1])
- with xml.max_instances:
- xml << str(inst[2])
- with xml.cores:
- xml << str(inst[3])
- with xml.memory(unit='MB'):
- xml << str(inst[4])
- with xml.disk_space(unit='GB'):
- xml << str(inst[5])
- if 'instances' in cloud and inst[0] in cloud['instances']:
- existingEucaInstances = cloud['instances'][inst[0]]
- with xml.euca_instances:
- for eucaInst in existingEucaInstances:
- with xml.euca_instance(id=eucaInst['id']):
- with xml.state:
- xml << eucaInst['state']
- with xml.public_dns:
- xml << eucaInst['public_dns']
-
- def __imageBundleXML(self, bundles):
- xml = self.eucaRSpec
- with xml.bundles:
- for bundle in bundles.keys():
- with xml.bundle(id=bundle):
- xml << ''
-
- ##
- # Creates the Images stanza.
- #
- # @param images A list of images in Eucalyptus.
- #
- def __imagesXML(self, images):
- xml = self.eucaRSpec
- with xml.images:
- for image in images:
- with xml.image(id=image.id):
- with xml.type:
- xml << image.type
- with xml.arch:
- xml << image.architecture
- with xml.state:
- xml << image.state
- with xml.location:
- xml << image.location
-
- ##
- # Creates the KeyPairs stanza.
- #
- # @param keypairs A list of key pairs in Eucalyptus.
- #
- def __keyPairsXML(self, keypairs):
- xml = self.eucaRSpec
- with xml.keypairs:
- for key in keypairs:
- with xml.keypair:
- xml << key.name
-
- ##
- # Generates the RSpec.
- #
- def toXML(self):
- logger = logging.getLogger('EucaAggregate')
- if not self.cloudInfo:
- logger.error('No cloud information')
- return ''
-
- xml = self.eucaRSpec
- cloud = self.cloudInfo
- with xml.RSpec(type='eucalyptus'):
- with xml.network(name=cloud['name']):
- with xml.ipv4:
- xml << cloud['ip']
- #self.__keyPairsXML(cloud['keypairs'])
- #self.__imagesXML(cloud['images'])
- self.__imageBundleXML(cloud['imageBundles'])
- self.__clustersXML(cloud['clusters'])
- return str(xml)
-
-##
-# A parser to parse the output of availability-zones.
-#
-# Note: Only one cluster is supported. If more than one, this will
-# not work.
-#
-class ZoneResultParser(object):
- def __init__(self, zones):
- self.zones = zones
-
- def parse(self):
- if len(self.zones) < 3:
- return
- clusterList = []
- cluster = {}
- instList = []
-
- cluster['name'] = self.zones[0].name
- cluster['ip'] = self.zones[0].state
-
- for i in range(2, len(self.zones)):
- currZone = self.zones[i]
- instType = currZone.name.split()[1]
-
- stateString = currZone.state.split('/')
- rscString = stateString[1].split()
-
- instFree = int(stateString[0])
- instMax = int(rscString[0])
- instNumCpu = int(rscString[1])
- instRam = int(rscString[2])
- instDiskSpace = int(rscString[3])
-
- instTuple = (instType, instFree, instMax, instNumCpu, instRam, instDiskSpace)
- instList.append(instTuple)
- cluster['instances'] = instList
- clusterList.append(cluster)
-
- return clusterList
-
-class AggregateManagerEucalyptus:
-
- # The data structure used to represent a cloud.
- # It contains the cloud name, its ip address, image information,
- # key pairs, and clusters information.
- cloud = {}
-
- # The location of the RelaxNG schema.
- EUCALYPTUS_RSPEC_SCHEMA='/etc/sfa/eucalyptus.rng'
-
- _inited=False
-
- # the init_server mechanism has vanished
- def __init__ (self, config):
- if AggregateManagerEucalyptus._inited: return
- AggregateManagerEucalyptus.init_server()
-
- # Initialize the aggregate manager by reading a configuration file.
- @staticmethod
- def init_server():
- logger = logging.getLogger('EucaAggregate')
- fileHandler = logging.FileHandler('/var/log/euca.log')
- fileHandler.setFormatter(logging.Formatter('%(asctime)s - %(levelname)s - %(message)s'))
- logger.addHandler(fileHandler)
- fileHandler.setLevel(logging.DEBUG)
- logger.setLevel(logging.DEBUG)
-
- configParser = ConfigParser()
- configParser.read(['/etc/sfa/eucalyptus_aggregate.conf', 'eucalyptus_aggregate.conf'])
- if len(configParser.sections()) < 1:
- logger.error('No cloud defined in the config file')
- raise Exception('Cannot find cloud definition in configuration file.')
-
- # Only read the first section.
- cloudSec = configParser.sections()[0]
- AggregateManagerEucalyptus.cloud['name'] = cloudSec
- AggregateManagerEucalyptus.cloud['access_key'] = configParser.get(cloudSec, 'access_key')
- AggregateManagerEucalyptus.cloud['secret_key'] = configParser.get(cloudSec, 'secret_key')
- AggregateManagerEucalyptus.cloud['cloud_url'] = configParser.get(cloudSec, 'cloud_url')
- cloudURL = AggregateManagerEucalyptus.cloud['cloud_url']
- if cloudURL.find('https://') >= 0:
- cloudURL = cloudURL.replace('https://', '')
- elif cloudURL.find('http://') >= 0:
- cloudURL = cloudURL.replace('http://', '')
- (AggregateManagerEucalyptus.cloud['ip'], parts) = cloudURL.split(':')
-
- # Create image bundles
- images = self.getEucaConnection().get_all_images()
- AggregateManagerEucalyptus.cloud['images'] = images
- AggregateManagerEucalyptus.cloud['imageBundles'] = {}
- for i in images:
- if i.type != 'machine' or i.kernel_id is None: continue
- name = os.path.dirname(i.location)
- detail = {'imageID' : i.id, 'kernelID' : i.kernel_id, 'ramdiskID' : i.ramdisk_id}
- AggregateManagerEucalyptus.cloud['imageBundles'][name] = detail
-
- # Initialize sqlite3 database and tables.
- dbPath = '/etc/sfa/db'
- dbName = 'euca_aggregate.db'
-
- if not os.path.isdir(dbPath):
- logger.info('%s not found. Creating directory ...' % dbPath)
- os.mkdir(dbPath)
-
- conn = connectionForURI('sqlite://%s/%s' % (dbPath, dbName))
- sqlhub.processConnection = conn
- Slice.createTable(ifNotExists=True)
- EucaInstance.createTable(ifNotExists=True)
- Meta.createTable(ifNotExists=True)
-
- # Start the update process to keep track of the meta data
- # about Eucalyptus instance.
- Process(target=AggregateManagerEucalyptus.updateMeta).start()
-
- # Make sure the schema exists.
- if not os.path.exists(AggregateManagerEucalyptus.EUCALYPTUS_RSPEC_SCHEMA):
- err = 'Cannot location schema at %s' % AggregateManagerEucalyptus.EUCALYPTUS_RSPEC_SCHEMA
- logger.error(err)
- raise Exception(err)
-
- #
- # A separate process that will update the meta data.
- #
- @staticmethod
- def updateMeta():
- logger = logging.getLogger('EucaMeta')
- fileHandler = logging.FileHandler('/var/log/euca_meta.log')
- fileHandler.setFormatter(logging.Formatter('%(asctime)s - %(levelname)s - %(message)s'))
- logger.addHandler(fileHandler)
- fileHandler.setLevel(logging.DEBUG)
- logger.setLevel(logging.DEBUG)
-
- while True:
- sleep(30)
-
- # Get IDs of the instances that don't have IPs yet.
- dbResults = Meta.select(
- AND(Meta.q.pri_addr == None,
- Meta.q.state != 'deleted')
- )
- dbResults = list(dbResults)
- logger.debug('[update process] dbResults: %s' % dbResults)
- instids = []
- for r in dbResults:
- if not r.instance:
- continue
- instids.append(r.instance.instance_id)
- logger.debug('[update process] Instance Id: %s' % ', '.join(instids))
-
- # Get instance information from Eucalyptus
- conn = self.getEucaConnection()
- vmInstances = []
- reservations = conn.get_all_instances(instids)
- for reservation in reservations:
- vmInstances += reservation.instances
-
- # Check the IPs
- instIPs = [ {'id':i.id, 'pri_addr':i.private_dns_name, 'pub_addr':i.public_dns_name}
- for i in vmInstances if i.private_dns_name != '0.0.0.0' ]
- logger.debug('[update process] IP dict: %s' % str(instIPs))
-
- # Update the local DB
- for ipData in instIPs:
- dbInst = EucaInstance.select(EucaInstance.q.instance_id == ipData['id']).getOne(None)
- if not dbInst:
- logger.info('[update process] Could not find %s in DB' % ipData['id'])
- continue
- dbInst.meta.pri_addr = ipData['pri_addr']
- dbInst.meta.pub_addr = ipData['pub_addr']
- dbInst.meta.state = 'running'
-
- self.dumpinstanceInfo()
-
- ##
- # Creates a connection to Eucalytpus. This function is inspired by
- # the make_connection() in Euca2ools.
- #
- # @return A connection object or None
- #
- def getEucaConnection():
- accessKey = AggregateManagerEucalyptus.cloud['access_key']
- secretKey = AggregateManagerEucalyptus.cloud['secret_key']
- eucaURL = AggregateManagerEucalyptus.cloud['cloud_url']
- useSSL = False
- srvPath = '/'
- eucaPort = 8773
- logger = logging.getLogger('EucaAggregate')
-
- if not accessKey or not secretKey or not eucaURL:
- logger.error('Please set ALL of the required environment ' \
- 'variables by sourcing the eucarc file.')
- return None
-
- # Split the url into parts
- if eucaURL.find('https://') >= 0:
- useSSL = True
- eucaURL = eucaURL.replace('https://', '')
- elif eucaURL.find('http://') >= 0:
- useSSL = False
- eucaURL = eucaURL.replace('http://', '')
- (eucaHost, parts) = eucaURL.split(':')
- if len(parts) > 1:
- parts = parts.split('/')
- eucaPort = int(parts[0])
- parts = parts[1:]
- srvPath = '/'.join(parts)
-
- return boto.connect_ec2(aws_access_key_id=accessKey,
- aws_secret_access_key=secretKey,
- is_secure=useSSL,
- region=RegionInfo(None, 'eucalyptus', eucaHost),
- port=eucaPort,
- path=srvPath)
-
- def ListResources(api, creds, options):
- call_id = options.get('call_id')
- if Callids().already_handled(call_id): return ""
- # get slice's hrn from options
- xrn = options.get('geni_slice_urn', '')
- hrn, type = urn_to_hrn(xrn)
- logger = logging.getLogger('EucaAggregate')
-
- # get hrn of the original caller
- origin_hrn = options.get('origin_hrn', None)
- if not origin_hrn:
- origin_hrn = Credential(string=creds[0]).get_gid_caller().get_hrn()
-
- conn = self.getEucaConnection()
-
- if not conn:
- logger.error('Cannot create a connection to Eucalyptus')
- return 'Cannot create a connection to Eucalyptus'
-
- try:
- # Zones
- zones = conn.get_all_zones(['verbose'])
- p = ZoneResultParser(zones)
- clusters = p.parse()
- AggregateManagerEucalyptus.cloud['clusters'] = clusters
-
- # Images
- images = conn.get_all_images()
- AggregateManagerEucalyptus.cloud['images'] = images
- AggregateManagerEucalyptus.cloud['imageBundles'] = {}
- for i in images:
- if i.type != 'machine' or i.kernel_id is None: continue
- name = os.path.dirname(i.location)
- detail = {'imageID' : i.id, 'kernelID' : i.kernel_id, 'ramdiskID' : i.ramdisk_id}
- AggregateManagerEucalyptus.cloud['imageBundles'][name] = detail
-
- # Key Pairs
- keyPairs = conn.get_all_key_pairs()
- AggregateManagerEucalyptus.cloud['keypairs'] = keyPairs
-
- if hrn:
- instanceId = []
- instances = []
-
- # Get the instances that belong to the given slice from sqlite3
- # XXX use getOne() in production because the slice's hrn is supposed
- # to be unique. For testing, uniqueness is turned off in the db.
- # If the slice isn't found in the database, create a record for the
- # slice.
- matchedSlices = list(Slice.select(Slice.q.slice_hrn == hrn))
- if matchedSlices:
- theSlice = matchedSlices[-1]
- else:
- theSlice = Slice(slice_hrn = hrn)
- for instance in theSlice.instances:
- instanceId.append(instance.instance_id)
-
- # Get the information about those instances using their ids.
- if len(instanceId) > 0:
- reservations = conn.get_all_instances(instanceId)
- else:
- reservations = []
- for reservation in reservations:
- for instance in reservation.instances:
- instances.append(instance)
-
- # Construct a dictionary for the EucaRSpecBuilder
- instancesDict = {}
- for instance in instances:
- instList = instancesDict.setdefault(instance.instance_type, [])
- instInfoDict = {}
-
- instInfoDict['id'] = instance.id
- instInfoDict['public_dns'] = instance.public_dns_name
- instInfoDict['state'] = instance.state
- instInfoDict['key'] = instance.key_name
-
- instList.append(instInfoDict)
- AggregateManagerEucalyptus.cloud['instances'] = instancesDict
-
- except EC2ResponseError as ec2RespErr:
- errTree = ET.fromstring(ec2RespErr.body)
- errMsgE = errTree.find('.//Message')
- logger.error(errMsgE.text)
-
- rspec = EucaRSpecBuilder(AggregateManagerEucalyptus.cloud).toXML()
-
- # Remove the instances records so next time they won't
- # show up.
- if 'instances' in AggregateManagerEucalyptus.cloud:
- del AggregateManagerEucalyptus.cloud['instances']
-
- return rspec
-
- """
- Hook called via 'sfi.py create'
- """
- def CreateSliver(api, slice_xrn, creds, xml, users, options):
- call_id = options.get('call_id')
- if Callids().already_handled(call_id): return ""
-
- logger = logging.getLogger('EucaAggregate')
- logger.debug("In CreateSliver")
-
- aggregate = PlAggregate(self.driver)
- slices = PlSlices(self.driver)
- (hrn, type) = urn_to_hrn(slice_xrn)
- peer = slices.get_peer(hrn)
- sfa_peer = slices.get_sfa_peer(hrn)
- slice_record=None
- if users:
- slice_record = users[0].get('slice_record', {})
-
- conn = self.getEucaConnection()
- if not conn:
- logger.error('Cannot create a connection to Eucalyptus')
- return ""
-
- # Validate RSpec
- schemaXML = ET.parse(AggregateManagerEucalyptus.EUCALYPTUS_RSPEC_SCHEMA)
- rspecValidator = ET.RelaxNG(schemaXML)
- rspecXML = ET.XML(xml)
- for network in rspecXML.iterfind("./network"):
- if network.get('name') != AggregateManagerEucalyptus.cloud['name']:
- # Throw away everything except my own RSpec
- # sfa_logger().error("CreateSliver: deleting %s from rspec"%network.get('id'))
- network.getparent().remove(network)
- if not rspecValidator(rspecXML):
- error = rspecValidator.error_log.last_error
- message = '%s (line %s)' % (error.message, error.line)
- raise InvalidRSpec(message)
-
- """
- Create the sliver[s] (slice) at this aggregate.
- Verify HRN and initialize the slice record in PLC if necessary.
- """
-
- # ensure site record exists
- site = slices.verify_site(hrn, slice_record, peer, sfa_peer)
- # ensure slice record exists
- slice = slices.verify_slice(hrn, slice_record, peer, sfa_peer)
- # ensure person records exists
- persons = slices.verify_persons(hrn, slice, users, peer, sfa_peer)
-
- # Get the slice from db or create one.
- s = Slice.select(Slice.q.slice_hrn == hrn).getOne(None)
- if s is None:
- s = Slice(slice_hrn = hrn)
-
- # Process any changes in existing instance allocation
- pendingRmInst = []
- for sliceInst in s.instances:
- pendingRmInst.append(sliceInst.instance_id)
- existingInstGroup = rspecXML.findall(".//euca_instances")
- for instGroup in existingInstGroup:
- for existingInst in instGroup:
- if existingInst.get('id') in pendingRmInst:
- pendingRmInst.remove(existingInst.get('id'))
- for inst in pendingRmInst:
- dbInst = EucaInstance.select(EucaInstance.q.instance_id == inst).getOne(None)
- if dbInst.meta.state != 'deleted':
- logger.debug('Instance %s will be terminated' % inst)
- # Terminate instances one at a time for robustness
- conn.terminate_instances([inst])
- # Only change the state but do not remove the entry from the DB.
- dbInst.meta.state = 'deleted'
- #dbInst.destroySelf()
-
- # Process new instance requests
- requests = rspecXML.findall(".//request")
- if requests:
- # Get all the public keys associate with slice.
- keys = []
- for user in users:
- keys += user['keys']
- logger.debug("Keys: %s" % user['keys'])
- pubKeys = '\n'.join(keys)
- logger.debug('Passing the following keys to the instance:\n%s' % pubKeys)
- for req in requests:
- vmTypeElement = req.getparent()
- instType = vmTypeElement.get('name')
- numInst = int(req.find('instances').text)
-
- bundleName = req.find('bundle').text
- if not AggregateManagerEucalyptus.cloud['imageBundles'][bundleName]:
- logger.error('Cannot find bundle %s' % bundleName)
- bundleInfo = AggregateManagerEucalyptus.cloud['imageBundles'][bundleName]
- instKernel = bundleInfo['kernelID']
- instDiskImg = bundleInfo['imageID']
- instRamDisk = bundleInfo['ramdiskID']
- instKey = None
-
- # Create the instances
- for i in range(0, numInst):
- eucaInst = EucaInstance(slice = s,
- kernel_id = instKernel,
- image_id = instDiskImg,
- ramdisk_id = instRamDisk,
- key_pair = instKey,
- inst_type = instType,
- meta = Meta(start_time=datetime.datetime.utcnow()))
- eucaInst.reserveInstance(conn, pubKeys)
-
- # xxx - should return altered rspec
- # with enough data for the client to understand what's happened
- return xml
-
- ##
- # Return information on the IP addresses bound to each slice's instances
- #
- def dumpInstanceInfo():
- logger = logging.getLogger('EucaMeta')
- outdir = "/var/www/html/euca/"
- outfile = outdir + "instances.txt"
-
- try:
- os.makedirs(outdir)
- except OSError as e:
- if e.errno != errno.EEXIST:
- raise
-
- dbResults = Meta.select(
- AND(Meta.q.pri_addr != None,
- Meta.q.state == 'running')
- )
- dbResults = list(dbResults)
- f = open(outfile, "w")
- for r in dbResults:
- instId = r.instance.instance_id
- ipaddr = r.pri_addr
- hrn = r.instance.slice.slice_hrn
- logger.debug('[dumpInstanceInfo] %s %s %s' % (instId, ipaddr, hrn))
- f.write("%s %s %s\n" % (instId, ipaddr, hrn))
- f.close()
-
- def GetVersion(api, options):
-
- version_manager = VersionManager()
- ad_rspec_versions = []
- request_rspec_versions = []
- for rspec_version in version_manager.versions:
- if rspec_version.content_type in ['*', 'ad']:
- ad_rspec_versions.append(rspec_version.to_dict())
- if rspec_version.content_type in ['*', 'request']:
- request_rspec_versions.append(rspec_version.to_dict())
- xrn=Xrn(api.hrn)
- version_more = {'interface':'aggregate',
- 'sfa': 1,
- 'geni_api': '2',
- 'testbed':'myplc',
- 'hrn':xrn.get_hrn(),
- 'geni_request_rspec_versions': request_rspec_versions,
- 'geni_ad_rspec_versions': ad_rspec_versions,
- }
- return version_core(version_more)
git://git.onelab.eu / sfa.git / commitdiff