Hi Michael,
Thanks for the reply.
I have a playbook that launches an EC2 instance and associates an elastic
IP to that instance I then use register to capture that IP:
- name: Associate a new Elastic IP to instance
ec2_eip: region=us-east-1 in_vpc=yes "instance_id={{ item }}"
with_items: ec2.instance_ids
register: eiptest
I used the debug technique to print out the IP just to make sure it was
working:
- name: Output the IP
debug: msg="The elastic IP is {{ eiptest }}"
Here's the output:
TASK: [Output the IP]
*********************************************************
ok: [localhost] => {
"msg": "The elastic IP is {'msg': 'All items completed', 'changed':
True, 'results': [{u'public_ip': u'255.100.104.57', 'item': u'i-32d230d2',
u'changed': True, 'invocation': {'module_name': u'ec2_eip', 'module_args':
u'region=us-east-1 in_vpc=yes \"instance_id=asdfadf\"'}}]}"
}
I tried a number of things and for some reason I can't get it to print "The
elastic IP is 255.100.104.57" using "The elastic IP is {{ eiptest.public_ip
}}". I had it working before but now I can only get it to dump the full
dict above.
In any case at the end of the play I call the role which attempts to use a
j2 template to put a config in place. From the configuration file:
external-ip="{{ eiptest.public_ip }}"
And the error message:
ASK: [boom | Copy boom configuration]
****************************************
fatal: [10.10.10.10] => {'msg': "AnsibleUndefinedVariable: One or more
undefined variables: 'eiptest' is undefined", 'failed': True}
Hope all of this makes sense. I am using version 1.7.2 currently.
Thanks!
On Wednesday, December 10, 2014 2:11:41 PM UTC-6, [email protected] wrote:
>
> I am launching one-off ec2 instance for development purposes and in the
> main playbook I am launching an EC2 instance then assigning an elastic IP.
> Once all of that is done I am configuring the server via a role. I am able
> to capture the elastic IP via register but how do I call it from the role?
> Or more specifically how can I call it in a configuration template from
> within the role that is applied?
>
> Here's an example:
>
> launch-server.yml:
>
> - name: Launch ec2 instance
> hosts: localhost
> gather_facts: False
> vars:
> key_name: ssh-key
> instance_type: t2.medium
> group_id: sg-f834234
> image: ami-b234234
> region: us-east-1
> vpc_subnet_id: subnet-65wer234
> tasks:
>
> - name: Launch instance
> local_action: ec2 key_name={{ key_name }} group_id={{ group_id }}
> instance_type={{ instance_type }} image={{ image }} wait=true region={{
> region }} vpc_subnet_id={{ vpc_subnet_id }}
> instance_tags='{"Name":"ec2-instance"}'
> register: ec2
>
> - name: allocate a new elastic IP without associating it to anything
> action: ec2_eip region=us-east-1
> register: eiptest
>
> - name: output the IP
> debug: msg="Allocated IP is {{ eiptest.public_ip }}" <--- this
> prints the elastic IP to the screen.
>
> - name: Add new instance to host group
> local_action: add_host hostname={{ item.private_ip }}
> groupname=launched
> with_items: ec2.instances
>
> - name: Wait for SSH to come up
> local_action: wait_for host={{ item.private_ip }} port=22 delay=60
> timeout=320 state=started
> with_items: ec2.instances
>
> - name: Configure instance
> hosts: launched
> sudo: True
> gather_facts: True
> roles:
> - myrole
>
> In the template from within the role it doesn't know about
> eiptest.public_ip so it fails and reading the docs it seems that var will
> be destroyed at the end of the play that calls the role. If I run ansible
> hostname -m setup I don't see any entries for the elastic IP assigned to
> the instance.
>
> I've tried a number of things and read through the docs but not having
> much luck. I would like to keep the roles separate from the plays that
> launch the instances if at all possible.
>
> Thanks!
>
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