algo/roles/cloud-ec2/tasks/main.yml

- block:
    - name: Build python virtual environment
      import_tasks: venv.yml

    - block:
      - name: Include prompts
        import_tasks: prompts.yml

      - set_fact:
          algo_region: >-
            {% if region is defined %}{{ region }}
            {%- elif _algo_region.user_input is defined and _algo_region.user_input != "" %}{{ aws_regions[_algo_region.user_input | int -1 ]['region_name'] }}
            {%- else %}{{ aws_regions[default_region | int - 1]['region_name'] }}{% endif %}            
          stack_name: "{{ algo_server_name | replace('.', '-') }}"

      - name: Locate official AMI for region
        ec2_ami_facts:
          aws_access_key: "{{ access_key }}"
          aws_secret_key: "{{ secret_key }}"
          owners: "{{ cloud_providers.ec2.image.owner }}"
          region: "{{ algo_region }}"
          filters:
            name: "ubuntu/images/hvm-ssd/{{ cloud_providers.ec2.image.name }}-amd64-server-*"
        register: ami_search

      - import_tasks: encrypt_image.yml
        when: encrypted

      - name: Set the ami id as a fact
        set_fact:
          ami_image: >-
            {% if ami_search_encrypted.image_id is defined %}{{ ami_search_encrypted.image_id }}
            {%- elif search_crypt.images is defined and search_crypt.images|length >= 1 %}{{ (search_crypt.images | sort(attribute='creation_date') | last)['image_id'] }}
            {%- else %}{{ (ami_search.images | sort(attribute='creation_date') | last)['image_id'] }}{% endif %}            

      - name: Deploy the stack
        import_tasks: cloudformation.yml

      - set_fact:
          cloud_instance_ip: "{{ stack.stack_outputs.ElasticIP }}"
          ansible_ssh_user: ubuntu
      environment:
        PYTHONPATH: "{{ ec2_venv }}/lib/python2.7/site-packages/"
  rescue:
    - debug: var=fail_hint
      tags: always
    - fail:
      tags: always