Setting up a basic EC2 Instance with boto

reserve_server.py

from boto.ec2.connection import EC2Connection
import secretkeys

conn = EC2Connection(secretkeys.AWS_ACCESS_KEY, secretkeys.AWS_SECRET_KEY)
security_description = 'Security rules for external servers'
repo_sg = conn.create_security_group('external-server', security_description)
repo_sg.authorize('tcp', 80, 80, '0.0.0.0/0')
repo_sg.authorize('tcp', 22, 22, '0.0.0.0/0')
repo_sg.authorize('tcp', 443, 443, '0.0.0.0/0')

reservation = conn.run_instances(image_id='ami-fd20ad94', # from canonical
                                 key_name='canepi',
                                 security_groups=['external-server'],
                                 instance_type='t1.micro')
intance = reservation.instances[0]
instance.start()
# wait a bit
instance.update()
print instance.public_dns_name