How to get IP address of the launched instance with Boto

Question

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 ?

score 13 · Accepted Answer · answered Jul 03 '14 at 07:20

13

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

answered Jul 03 '14 at 07:20

Thomas Orozco

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I had a problem with this and calling `instance.update()` again 5 seconds after it entered "running" state solved it. – Reut Sharabani Feb 10 '15 at 17:55
Can an instance not have multiple ip addresses? – ThorSummoner Apr 30 '15 at 16:10
if you want the private IP address, you can use instance.private_ip_address – cgseller Jul 22 '15 at 13:39

How to get IP address of the launched instance with Boto

1 Answers1