play

PLAY [all] ******************************************************************** 

GATHERING FACTS *************************************************************** 
ok: [tyrion]

TASK: [group ] **************************************************************** 
failed: [tyrion] => (item={'name': 'first_group'}) => {"failed": true, "item": {"name": "first_group"}, "name": "first_group"}
msg: groupadd: invalid group ID ''

failed: [tyrion] => (item={'name': 'second_group', 'system': 'yes'}) => {"failed": true, "item": {"name": "second_group", "system": "yes"}, "name": "second_group"}
msg: groupadd: invalid group ID ''

ok: [tyrion] => (item={'state': 'absent', 'gid': '12121', 'name': 'third_group'})

FATAL: all hosts have already failed -- aborting

test_group.yml

---

- hosts: all
  sudo: True

  vars:
    group_list:
      - name: 'first_group'
      - name: 'second_group'
        system: 'yes'
      - name: 'third_group'
        gid: '12121'
        state: 'absent'

  tasks:
    - group:
        name: '{{ item.name }}'
        state: '{{ item.state | default("present") }}'
        system: '{{ item.system | default("no") }}'
        gid: '{{ item.gid | default(None) }}'
      with_items: group_list
      when: item.name is defined and item.name