import sys
import os
+import logging
+import datetime
import boto
from boto.ec2.regioninfo import RegionInfo
from sfa.rspecs.sfa_rspec import sfa_rspec_version
from sfa.util.version import version_core
+from threading import Thread
+from time import sleep
+
##
# The data structure used to represent a cloud.
# It contains the cloud name, its ip address, image information,
#
EUCALYPTUS_RSPEC_SCHEMA='/etc/sfa/eucalyptus.rng'
-# Quick hack
-sys.stderr = file('/var/log/euca_agg.log', 'a+')
api = SfaAPI()
+##
+# 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.
ramdisk_id = StringCol()
inst_type = StringCol()
key_pair = StringCol()
- slice = ForeignKey('Slice')
+ slice = ForeignKey('Slice')
+ meta = ForeignKey('Meta')
##
# Contacts Eucalyptus and tries to reserve this instance.
# @param pubKeys A list of public keys for the instance.
#
def reserveInstance(self, botoConn, pubKeys):
- print >>sys.stderr, '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)
+ 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))
# XXX The return statement is for testing. REMOVE in production
#return
except EC2ResponseError, ec2RespErr:
errTree = ET.fromstring(ec2RespErr.body)
msg = errTree.find('.//Message')
- print >>sys.stderr, msg.text
+ logger.error(msg.text)
self.destroySelf()
##
# Initialize the aggregate manager by reading a configuration file.
#
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)
+ logger.setLevel(logging.DEBUG)
+
configParser = ConfigParser()
configParser.read(['/etc/sfa/eucalyptus_aggregate.conf', 'eucalyptus_aggregate.conf'])
if len(configParser.sections()) < 1:
- print >>sys.stderr, 'No cloud defined in the config file'
+ logger.error('No cloud defined in the config file')
raise Exception('Cannot find cloud definition in configuration file.')
# Only read the first section.
detail = {'imageID' : i.id, 'kernelID' : i.kernel_id, 'ramdiskID' : i.ramdisk_id}
cloud['imageBundles'][name] = detail
- # Initialize sqlite3 database.
+ # Initialize sqlite3 database and tables.
dbPath = '/etc/sfa/db'
dbName = 'euca_aggregate.db'
if not os.path.isdir(dbPath):
- print >>sys.stderr, '%s not found. Creating directory ...' % 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)
+ IP.createTable(ifNotExists=True)
+
+ # Start the update thread to keep track of the meta data
+ # about Eucalyptus instance.
+ Thread(target=updateMeta).start()
# Make sure the schema exists.
if not os.path.exists(EUCALYPTUS_RSPEC_SCHEMA):
err = 'Cannot location schema at %s' % EUCALYPTUS_RSPEC_SCHEMA
- print >>sys.stderr, err
+ logger.error(err)
raise Exception(err)
##
useSSL = False
srvPath = '/'
eucaPort = 8773
+ logger = logging.getLogger('EucaAggregate')
if not accessKey or not secretKey or not eucaURL:
- print >>sys.stderr, 'Please set ALL of the required environment ' \
- 'variables by sourcing the eucarc file.'
+ logger.error('Please set ALL of the required environment ' \
+ 'variables by sourcing the eucarc file.')
return None
# Split the url into parts
# @return sting()
#
def getKeysForSlice(api, sliceHRN):
+ logger = logging.getLogger('EucaAggregate')
cred = api.getCredential()
registry = api.registries[api.hrn]
keys = []
# Get the slice record
records = registry.Resolve(sliceHRN, cred)
if not records:
- print >>sys.stderr, 'Cannot find any record for slice %s' % sliceHRN
+ logging.warn('Cannot find any record for slice %s' % sliceHRN)
return []
# Find who can log into this slice
# Generates the RSpec.
#
def toXML(self):
+ logger = logging.getLogger('EucaAggregate')
if not self.cloudInfo:
- print >>sys.stderr, 'No cloud information'
+ logger.error('No cloud information')
return ''
xml = self.eucaRSpec
# 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)
conn = getEucaConnection()
if not conn:
- print >>sys.stderr, 'Error: Cannot create a connection to Eucalyptus'
+ logger.error('Cannot create a connection to Eucalyptus')
return 'Cannot create a connection to Eucalyptus'
try:
except EC2ResponseError, ec2RespErr:
errTree = ET.fromstring(ec2RespErr.body)
errMsgE = errTree.find('.//Message')
- print >>sys.stderr, errMsgE.text
+ logger.error(errMsgE.text)
rspec = EucaRSpecBuilder(cloud).toXML()
global cloud
hrn = urn_to_hrn(xrn)[0]
+ logger = logging.getLogger('EucaAggregate')
conn = getEucaConnection()
if not conn:
- print >>sys.stderr, 'Error: Cannot create a connection to Eucalyptus'
+ logger.error('Cannot create a connection to Eucalyptus')
return ""
# Validate RSpec
if existingInst.get('id') in pendingRmInst:
pendingRmInst.remove(existingInst.get('id'))
for inst in pendingRmInst:
- print >>sys.stderr, 'Instance %s will be terminated' % inst
+ logger.debug('Instance %s will be terminated' % inst)
dbInst = EucaInstance.select(EucaInstance.q.instance_id == inst).getOne(None)
- dbInst.destroySelf()
+ # Only change the state but do not remove the entry from the DB.
+ dbInst.meta.state = 'deleted'
+ #dbInst.destroySelf()
conn.terminate_instances(pendingRmInst)
# Process new instance requests
if requests:
# Get all the public keys associate with slice.
pubKeys = getKeysForSlice(api, s.slice_hrn)
- print >>sys.stderr, "Passing the following keys to the instance:\n%s" % pubKeys
- sys.stderr.flush()
+ logger.debug('Passing the following keys to the instance:\n%s' % pubKeys)
for req in requests:
vmTypeElement = req.getparent()
instType = vmTypeElement.get('name')
bundleName = req.find('bundle').text
if not cloud['imageBundles'][bundleName]:
- print >>sys.stderr, 'Cannot find bundle %s' % bundleName
+ logger.error('Cannot find bundle %s' % bundleName)
bundleInfo = cloud['imageBundles'][bundleName]
instKernel = bundleInfo['kernelID']
instDiskImg = bundleInfo['imageID']
# Create the instances
for i in range(0, numInst):
- eucaInst = EucaInstance(slice = s,
- kernel_id = instKernel,
- image_id = instDiskImg,
+ eucaInst = EucaInstance(slice = s,
+ kernel_id = instKernel,
+ image_id = instDiskImg,
ramdisk_id = instRamDisk,
- key_pair = instKey,
- inst_type = instType)
+ key_pair = instKey,
+ inst_type = instType,
+ meta = Meta(start_time=datetime.datetime.now()))
eucaInst.reserveInstance(conn, pubKeys)
# xxx - should return altered rspec
# with enough data for the client to understand what's happened
return xml
+##
+# A thread that will update the meta data.
+#
+def updateMeta():
+ logger = logging.getLogger('EucaAggregate')
+ while True:
+ sleep(120)
+
+ # 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 thread] dbResults: %s' % dbResults)
+ instids = []
+ for r in dbResults:
+ instids.append(r.instance.instance_id)
+ logger.debug('[update thread] Instance Id: %s' % ', '.join(instids))
+
+ # Get instance information from Eucalyptus
+ conn = 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 thread] 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 thread] 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'
+
def GetVersion(api):
xrn=Xrn(api.hrn)
request_rspec_versions = [dict(sfa_rspec_version)]
git://git.onelab.eu / sfa.git / blobdiff