upgrade_ec2_provision.yml

---

- hosts: localhost
  gather_facts: False

  tasks:
    - name: Get most recent AMI
      amazon.aws.ec2_ami_info:
        region: "{{ aws_region }}"
        filters:
          name: "{{ app_name }}-ami-*"
      register: register_ami_info

    - name: Get running web servers
      community.aws.ec2_instance_info:
        region: "{{ aws_region }}"
        filters:
          "tag:Name": "{{ app_name }}-ec2-{{ ansible_environment }}-webserver"
          instance-state-name: [ "running" ]
      register: register_web_info

    - name: Get running worker servers
      community.aws.ec2_instance_info:
        region: "{{ aws_region }}"
        filters:
          "tag:Name": "{{ app_name }}-ec2-{{ ansible_environment }}-worker"
          instance-state-name: [ "running" ]
      register: register_worker_info

    - name: Get running control servers
      community.aws.ec2_instance_info:
        region: "{{ aws_region }}"
        filters:
          "tag:Name": "{{ app_name }}-ec2-{{ ansible_environment }}-control"
          instance-state-name: [ "running" ]
      register: register_control_info

    - set_fact:
        ami: "{{ register_ami_info.images | sort(attribute='creation_date', reverse = True) | first }}"
        web: "{{ register_web_info.instances|length * 2 }}"
        worker: "{{ register_worker_info.instances|length * 2 }}"
        control: "{{ register_control_info.instances|length * 2 }}"