EC2: Waiting until a new instance is in running state

Question

I would like to create a new instance based on my stored AMI.

I achieve this by the following code:

RunInstancesRequest rir = new RunInstancesRequest(ima         


        

Answer 1

Waiting for the EC2 instance to get ready is a common pattern. In the Python library boto you also solve this with sleep calls:

   reservation = conn.run_instances([Instance configuration here])
   instance = reservation.instances[0]

   while instance.state != 'running':
       print '...instance is %s' % instance.state
       time.sleep(10)
       instance.update()

With this mechanism you will be able to poll when your new instance will come up.