how to get metadata of aws instance created in ansible?

Question

I'm creating an AWS instance and need to get the hostname, ip address in the same play. How to get the metadata. I tried 'ec2_instance_facts', 'ec2_metadata_facts', these are giving the host ansible playbook is running not the one just created.

I have tried using different modules '

- name: Debug
  ec2_metadata_facts:
- debug: var=ansible_ec2_hostname
- debug: var=ansible_ec2_public_ipv4
- debug: var=ansible_ec2_public_hostname


- ec2_instance_facts:
   region: "ap-southeast-2"
   filters:
      "tag:Name": A01NANISIM20

  register: ec2_metadata

These snippets are not giving the details of the insatnce created, instead they give the details of the instance where playbook is run.

Thanks for the info ! So how to get the metadata from outside the ec2 instance? I'm a complete novice ! — DevOps Junky, Nov 24 '17 at 08:02

score 4 · Answer 1 · answered Nov 27 '17 at 01:02

- ec2_instance_facts:
   region: "ap-southeast-2"
   filters:
      "tag:Name": A01NANISIM04

  register: ec2_metadata

- debug: msg="{{ ec2_metadata.instances }}"

- debug: msg="{{ ec2_metadata.instances[0].public_ip_address }}"

Finally I figured out myself. I didn't realize that ansible is an amalgamation of technologies. Just understood that the output is JSON data and all I need to form is the appropriate tags.

score 0 · Answer 2 · answered Aug 08 '19 at 15:14

I've been using the ohai_ec2 fact run task based on the region or availability zone as ec2_instance_facts fails for me with a boto3 bug

using https://stackoverflow.com/a/51308298/4389552 let me see which facts I can use

e.g.

 {{ ohai_ec2.region }}

# find the region
  - name: get the region and availability zone
    debug:
      msg: "Region is {{ ohai_ec2.region }} and zone is {{ ohai_ec2.availability_zone }}"

how to get metadata of aws instance created in ansible?

2 Answers2