Thanks for the deeper explanation, I get it now.
When you say "Most people only target localhost, instead of a group that
contains multiple hosts." do you mean when I'm applying a role? Because in
the same playbook s the ec2 instance(s) creation i'm apply a role(s) to the
newly created instances. So the whole playbook is:
- hosts: ec2_test
connection: local
gather_facts: true
tasks:
- name: Launch Instance
ec2:
group_id: "{{ groupID }}"
instance_type: 't2.micro'
image: "{{ image }}"
wait: true
region: "{{ region }}"
keypair: "{{ keypair }}"
vpc_subnet_id: "{{ subnet }}"
instance_tags:
Name: "{{ inventory_hostname }}"
ENV: "{{ tagEnv }}"
register: ec2
- name: Add hosts to group
add_host: name="{{ hostvars[item]['ec2'].instances.0.private_ip }}"
groups=dynamic
with_items: "{{ play_hosts }}"
- name: Wait for SSH
wait_for:
host: "{{ item.private_ip }}"
port: 22
delay: 10
timeout: 320
state: started
with_items: "{{ ec2.instances }}"
- name: Wait a little longer for centos
pause: seconds=20
- hosts: dynamic
gather_facts: yes
sudo: yes
roles:
- hostname
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