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import sys | |
import boto | |
import boto.ec2 | |
def _launchAWSInstances(): | |
connection = boto.ec2.connect_to_region(AWS_REGION, aws_access_key_id = AWS_ACCESS_KEY_ID, aws_secret_access_key=AWS_ACCESS_KEY_SECRET) | |
global reservation | |
reservation = connection.run_instances(AWS_AMI, | |
key_name=AWS_SSH_KEY_NAME, | |
instance_type=AWS_INSTANCE_SIZE, | |
security_groups=[AWS_SECURITY_GROUP]) | |
import time | |
unixtime = int(time.time()) | |
for index, instance in enumerate(reservation.instances): | |
instance.add_tag('Name', 'UDB Machine ' + str(unixtime)) | |
print "Awaiting Instances Ready" | |
for index, instance in enumerate(reservation.instances): | |
_awaitAWSInstanceReady(instance, 0) | |
print "All Instances Ready" | |
# takes an ec2 instance object | |
# recursively calls itself until it's ready | |
def _awaitAWSInstanceReady(instance, loops): | |
time_interval = 1 | |
if instance.update() == 'running': | |
time_elapsed = loops * time_interval | |
print '' | |
print 'Took %d seconds' % time_elapsed | |
return True | |
else: | |
_progressBar(loops) | |
time.sleep(1) | |
_awaitAWSInstanceReady(instance, loops + 1) | |
# simple progress bar | |
def _progressBar(state): | |
progress_bar = '=' * state | |
sys.stdout.write('\r'+progress_bar) | |
sys.stdout.flush() |
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