Hi Christian,
You are correct that there is a wait parameter to the ec2 module but
unfortunately it will probably not get you what you want since an ec2
instance in the "running" state does not necessary mean you can ssh to
it.
What we should probably add to this module is a wait for the system
status check to be 'ok' which is what I do typically when using boto
in python code.
To solve your immediate problem I wouldn't use a prompt; instead you
can wait for ssh to become available using the the wait_for module.
Example:
# register the var "ec2" when you launch it using the ec2 module
- name: Add new instance to host group
local_action: >
add_host
hostname={{ item.public_ip }}
groupname=launched
with_items: ec2.instances
- name: Wait for SSH to come up
local_action: >
wait_for
host={{ item.public_dns_name }}
state=started
port=22
delay=60
timeout=320
with_items: ec2.instances
As for idempotent behavior with the ec2 module you can use the id
parameter, see
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/Run_Instance_Idempotency.html
-John
On Tue, Apr 8, 2014 at 1:46 PM, Christian Kaps <[email protected]> wrote:
> I think the wait property on the EC2 module is exactly what I want.
>
> Thanks
>
> Am Dienstag, 8. April 2014 09:13:59 UTC+2 schrieb Christian Kaps:
>>
>> Hi,
>>
>> in the most Playbooks about EC2 provisioning there exists a task which
>> executes the pause module to wait for the instance to be available. Now that
>> the EC2 module supports idempotency it is possible to run a playbook
>> multiple times to add new features to an already provisioned instance. The
>> problem now is that the pause module runs every time and waits for e.g. 2
>> minutes. I know that I can use ^C-c to continue the task. But I think the
>> best solution would be to execute the wait task only after the instance was
>> provisioned. Is there any possibility to achieve such a behavior?
>>
>> Cheers,
>> Christian
>
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