获取使用Ansible创建的AMI的AMI ID

Question

I'm building an EC2 instance with Ansible, then creating an AMI from the instance. I'm sure I'm missing something here, but how do I get the DI of the newly created AMI? I've tried:

tasks:
- name: create an ami in us-east-1
  ec2_ami: wait=yes
           aws_access_key={{ ec2_access_key }}
           aws_secret_key={{ ec2_secret_key }}
           instance_id={{ item }}
           region={{ region1 }}
           name=data-mgmt-qa-006
  with_items: hostvars[inventory_hostname]['ansible_ec2_instance_id']
  register: ec2_ami_info

- debug: var=item
  with_items: ec2_ami_info.image_id 

and:

tasks:
- name: create an ami in us-east-1
  ec2_ami: wait=yes
           aws_access_key={{ ec2_access_key }}
           aws_secret_key={{ ec2_secret_key }}
           instance_id={{ item }}
           region={{ region1 }}
           name=data-mgmt-qa-006
  with_items: hostvars[inventory_hostname]['ansible_ec2_instance_id']
  register: instance

- debug: var=item
  with_items: instance.image_id

The latter 'register' is copied from the docs, but I'm not able to get the right with_items obviously.

The AMI is being created fine. Any suggestions would be much appreciated.

Answer 1

Ran debug var=instance, and got:

TASK: [debug var=instance] **************************************************** 
ok: [54.90.128.104] => {
"instance": {
    "changed": true, 
    "msg": "All items completed", 
    "results": [
        {
            "changed": true, 
            "image_id": "ami-be14b9d6", 
            "invocation": {
                "module_args": "wait=yes aws_access_key=**** aws_secret_key=**** instance_id=i-393284d2 region=us-east-1 name=blah", 
                "module_name": "ec2_ami"
            }, 
            "item": "i-393284d2", 
            "msg": "AMI creation operation complete", 
            "state": "available"
        }
    ]
}
}

Given that:

- debug: var=instance.results[0].image_id

gave the correct results.

Answer 2

The ec2_ami task is correct, but your invocation of the debug module is wrong. Try this:

- debug: var=instance.image_id

or alternatively

- debug: msg={{instance.image_id}}

You don't need with_items here since there's only one value. with_items is a loop.