hosts-config.yaml

heat_template_version: rocky
description: 'All Hosts Config'

parameters:
  hosts:
    type: string

resources:

  hostsConfigImpl:
    type: OS::Heat::SoftwareConfig
    properties:
      group: script
      config:
        str_replace:
          params:
            WRITE_HOSTS:
              list_join:
                - ' '
                - str_split:
                  - '\n'
                  - {get_param: hosts}
          template: {get_file: scripts/hosts-config.sh}

outputs:
  config_id:
    description: The ID of the hostsConfigImpl resource.
    value:
      {get_resource: hostsConfigImpl}
  hosts_entries:
    description: |
      The content that should be appended to your /etc/hosts if you want to get
      hostname-based access to the deployed nodes (useful for testing without
      setting up a DNS).
    value: {get_param: hosts}
  OS::stack_id:
    description: The ID of the hostsConfigImpl resource.
    value: {get_resource: hostsConfigImpl}