def startItUp():
conn = meConnector.createEC2connection()
try:
strayInstances = False
meReservations = conn.get_all_instances()
for reservation in meReservations:
for instance in reservation.instances:
if (instance.state != 'terminated'):
strayInstances = True
badInstance = instance
except Exception, e:
meTools.mailIt(email,'Error with get_all_instances()!', 'Exception:\n\n%s' % e)
def createEC2connection():
try:
keyQuery = db.GqlQuery("Select * From EC2Credentials")
result = keyQuery.fetch(1)
meConn = EC2Connection(aws_access_key_id = result[0].public,
aws_secret_access_key = result[0].private,
is_secure = result[0].is_secure)
meConn.SignatureVersion = result[0].SignatureVersion
return meConn
except Exception, e:
meTools.mailIt(email,'Error Connecting to EC2!', 'Exception:\n\n%s' % e)
raise
def post(self):
instanceID = str(self.request.get('instanceID'))
conn = meConnector.createEC2connection()
try:
meInstances = conn.get_all_instances(instanceID)
for reservation in meInstances:
for instance in reservation.instances:
if instance.state == 'running':
meTools.mailIt(email,'Instance Running!','InstanceID: %s is %s' % (instance.id,instance.state))
elif instance.state == 'terminated':
meTools.mailIt(email,'Instance Terminated?!','InstanceID: %s is %s' % (instance.id,instance.state))
else:
addChkInstanceTask(instanceID)
meTools.mailIt(email,'Instance NOT Running!','Trying again in 50 seconds.\nInstanceID: %s is %s' %
(instance.id,instance.state))
except Exception, e:
meTools.mailIt(email,'Error with get_all_instances()!', 'Exception:\n\n%s' % e)
for reservation in meReservations:
for instance in reservation.instances:
if (instance.state != 'terminated'):
strayInstances = True
badInstance = instance
except Exception, e:
meTools.mailIt(email,'Error with get_all_instances()!', 'Exception:\n\n%s' % e)
#raise #Raising exception may cause Cron to retry indefinitely.
if not strayInstances:
try:
config = meSchema.getConfig()
meImage = conn.get_image(config[0].AMI_id) # Also add wakeup-time?
result = meImage.run( key_name = config[0].keypair_name,
placement = config[0].placement,
security_groups = config[0].security_groups )
meTools.mailIt(email,'Started new instance up!!!', '%s\n%s' % (result, result.instances[0].id))
except Exception, e:
meTools.mailIt(email,'Could Not Start AMI!','Error:\n%s' % e)
#raise #Raising exception may cause Cron to retry indefinitely.
meTasks.addChkInstanceTask(str(result.instances[0].id))
else:
meTools.mailIt(email,'Instances Already Running!','InstanceID: %s is %s' % (badInstance.id,badInstance.state))
email = '*****@*****.**'
application = webapp.WSGIApplication([('/starter/startAMI', StartAMI)],
debug=True)
def main():
run_wsgi_app(application)
def addChkInstanceTask(instanceStr):
try:
taskqueue.add(url = '/tasks/checkIt', countdown = 50,
params = {'instanceID': instanceStr} )
except Exception, e:
meTools.mailIt(email,'Problem Adding Task!','Error: %s' % e)
