Ansible + EC2 Tags

demo2.aws_ec2.yml

plugin: aws_ec2
regions:
  - us-west-2
keyed_groups:
  - key: tags.TG
    prefix: tag_TG_
    separator: ""
compose:
  # set the ansible_host variable to connect with the private IP address without changing the hostname
  ansible_host: private_ip_address

get-tag-for-current-instance.sh

aws ec2 describe-instances --region us-west-2 --instance-ids `curl -s http://169.254.169.254/latest/meta-data/instance-id` | jq '.Reservations[0].Instances[0].Tags | from_entries.TG'

ping-all.txt

$ ansible -i demo2.aws_ec2.yml tag_TG_Jim1 -m ping
ec2-54-187-132-73.us-west-2.compute.amazonaws.com | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python3"
    }, 
    "changed": false, 
    "ping": "pong"
}
ec2-52-40-49-101.us-west-2.compute.amazonaws.com | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python3"
    }, 
    "changed": false, 
    "ping": "pong"
}
ec2-34-220-218-167.us-west-2.compute.amazonaws.com | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python3"
    }, 
    "changed": false, 
    "ping": "pong"
}
ec2-34-212-179-98.us-west-2.compute.amazonaws.com | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python3"
    }, 
    "changed": false, 
    "ping": "pong"
}