{% for host in groups['all'] %}
object Host "{{ host }}" {
  /* Import the default host template defined in `templates.conf`. */
  import "generic-host"

  /* Specify the address attributes for checks e.g. `ssh` or `http`. */
  address = "{{ host }}"

  /* Set custom variable `os` for hostgroup assignment in `groups.conf`. */
  vars.os = "Linux"
}
{% endfor %}