okd/roles/openshift_aws/tasks/scale_group.yml

---
- name: query vpc
  ec2_vpc_net_facts:
    region: "{{ openshift_aws_region }}"
    filters:
      'tag:Name': "{{ openshift_aws_vpc_name }}"
  register: vpcout

- name: fetch the subnet to use in scale group
  ec2_vpc_subnet_facts:
    region: "{{ openshift_aws_region }}"
    filters:
      "tag:Name": "{{ openshift_aws_subnet_name }}"
      vpc-id: "{{ vpcout.vpcs[0].id }}"
  register: subnetout

- name: Create the scale group
  ec2_asg:
    name: "{{ openshift_aws_scale_group_name }}"
    launch_config_name: "{{ openshift_aws_launch_config_name }}"
    health_check_period: "{{ openshift_aws_node_group_config[openshift_aws_node_group_type].health_check.period }}"
    health_check_type: "{{ openshift_aws_node_group_config[openshift_aws_node_group_type].health_check.type }}"
    min_size: "{{ openshift_aws_node_group_config[openshift_aws_node_group_type].min_size }}"
    max_size: "{{ openshift_aws_node_group_config[openshift_aws_node_group_type].max_size }}"
    desired_capacity: "{{ openshift_aws_node_group_config[openshift_aws_node_group_type].desired_size }}"
    region: "{{ openshift_aws_region }}"
    termination_policies: "{{ openshift_aws_node_group_config[openshift_aws_node_group_type].termination_policy if 'termination_policy' in  openshift_aws_node_group_config[openshift_aws_node_group_type] else omit }}"
    load_balancers: "{{ openshift_aws_node_group_config[openshift_aws_node_group_type].elbs if 'elbs' in openshift_aws_node_group_config[openshift_aws_node_group_type] else omit }}"
    wait_for_instances: "{{ openshift_aws_node_group_config[openshift_aws_node_group_type].wait_for_instances | default(False)}}"
    vpc_zone_identifier: "{{ subnetout.subnets[0].id }}"
    replace_instances: "{{ openshift_aws_node_group_replace_instances if openshift_aws_node_group_replace_instances != [] else omit }}"
    replace_all_instances: "{{ omit if openshift_aws_node_group_replace_instances != [] else (openshift_aws_node_group_config[openshift_aws_node_group_type].replace_all_instances | default(omit)) }}"
    tags:
    - "{{ openshift_aws_node_group_config.tags | combine(openshift_aws_node_group_config[openshift_aws_node_group_type].tags) }}"