Ansible hide ok: [web] output but display msg

Question

how can I hide the ok: [web] output on terminal but display the msg on the terminal.

This is what I have in the ansible.cfg file. If I set display_ok_hosts=false, nothing will display on the terminal.

Answer 1

Use the callback community.general.selective. See

shell> ansible-doc -t callback selective

Quoting:

This callback only prints tasks that have been tagged with print_action or that have failed.

For example, the playbook

shell> cat pb.yml
- hosts: web
  gather_facts: false
tasks:
- getent:
    database: passwd

- assert:
    that:
      - getent_passwd._apt.5 == '/usr/sbin/nologin'
      - getent_passwd._rpc.5 == '/usr/sbin/nologin'
      - getent_passwd._chrony.5 == '/usr/sbin/nologin'
    success_msg: "[PASSED] - Ensure system accounts are non-login"
  tags: [print_action]

shows the output of all tasks when default callback is used

shell> ANSIBLE_STDOUT_CALLBACK=default ansible-playbook pb.yml
PLAY [web] ***********************************************************************************
TASK [getent] ********************************************************************************
ok: [web]
TASK [assert] ********************************************************************************
ok: [web] => {
    "changed": false,
    "msg": "[PASSED] - Ensure system accounts are non-login"
}
PLAY RECAP ***********************************************************************************
web: ok=2    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0

The output is limited to the enabled task when the selective callback is used

shell> ANSIBLE_STDOUT_CALLBACK=selective ansible-playbook pb.yml
.
# assert ******************************************************************************************************************
  * web                        - changed=False --------------------------------------------------
    [PASSED] - Ensure system accounts are non-login
STATS *******************************************************************************************************************
web: ok=2   changed=0   failed=0    unreachable=0   rescued=0   ignored=0