How to get IP address of the launched instance with Boto

python amazon-ec2 boto openstack
Malintha picture Malintha · Jul 3, 2014 · Viewed 9k times · Source

I am launching instance in openstack using boto

myinstance = conn.run_instances('ami-0000007d',min_count=1,max_count=1, instance_type = 'm1.small')

newmachine=myinstance.instances[0]

newMachine has the info related to the launched instance. I have tried 

vars(newmachine)

and the ip_address and private_ip_address of variables are empty. How can I obtain the ip_address of the launched instance ?

Answer

Thomas Orozco picture Thomas Orozco · Jul 3, 2014

Refresh the value until the instance enters Running state. At that point, the IP should be present (not that there's anything you could do with the IP before the instance is in running state).

reservation = conn.run_instances(...)

instance = reservation.instances[0]

while instance.update() != "running":
    time.sleep(5)  # Run this in a green thread, ideally

print instance.ip_address

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