Ansible Pilot

Ansible troubleshooting - user module password_expiry_min bug and workaround

Ansible troubleshooting - user module password_expiry_min bug and workaround

How to reproduce the password_expiry_min bug of the module user, triage, read the GitHub report, and workaround!

Today we’re going to talk about Ansible troubleshooting, specifically about the user module bug and possible workaround. I’m Luca Berton and welcome to today’s episode of Ansible Pilot

Demo

The best way of talking about Ansible troubleshooting is to jump in a live demo to show you practically the user module bug triage and possible workaround!

Reproducer

---
- name: user module demo
  hosts: all
  become: true
  vars:
    myuser: "example"
  tasks:
    - name: password expiration
      ansible.builtin.user:
        name: "{{ myuser }}"
        password_expire_min: 7
        password_expire_max: 90

execution

$ ansible-playbook -i demo/inventory troubleshooting/userbug_error.yml.yml
PLAY [user module demo] **********************************************************************************
TASK [Gathering Facts] ***********************************************************************************
ok: [demo.example.com]
TASK [password expiration] *******************************************************************************
changed: [demo.example.com]
PLAY RECAP ***********************************************************************************************
demo.example.com           : ok=2    changed=1    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0
ansible-pilot $ ansible-playbook -i demo/inventory user\ expiration/user.yml
PLAY [user module demo] **********************************************************************************
TASK [Gathering Facts] ***********************************************************************************
ok: [demo.example.com]
TASK [password expiration] *******************************************************************************
ok: [demo.example.com]
PLAY RECAP ***********************************************************************************************
demo.example.com           : ok=2    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0
ansible-pilot $ ssh [email protected]
Last login: Mon Nov  8 17:09:16 2021 from 192.168.43.5
[[email protected] ~]$ sudo su
[[email protected] devops]# chage -l example
Last password change     : Nov 08, 2021
Password expires     : Feb 06, 2022
Password inactive     : never
Account expires      : never
Minimum number of days between password change  : 0
Maximum number of days between password change  : 90
Number of days of warning before password expires : 7

We expected a 7 value for Minimum number of days between password change but we obtain 0.

Troubleshoot

bug report https://github.com/ansible/ansible/issues/75017 - user module can’t handle password expiration parameters correctly #75017

pull request https://github.com/ansible/ansible/pull/75390 - user module password expiration fixes #75390

Workaround

---
- name: user module demo
  hosts: all
  become: true
  vars:
    myuser: "example"
  tasks:
    - name: password min expiration
      ansible.builtin.user:
        name: "{{ myuser }}"
        password_expire_min: 7
- name: password max expiration
      ansible.builtin.user:
        name: "{{ myuser }}"
        password_expire_max: 90

execution

$ ansible-playbook -i demo/inventory troubleshooting/userbug_workaround.yml
PLAY [user module demo] **********************************************************************************
TASK [Gathering Facts] ***********************************************************************************
ok: [demo.example.com]
TASK [password min expiration] ***************************************************************************
changed: [demo.example.com]
TASK [password max expiration] ***************************************************************************
ok: [demo.example.com]
PLAY RECAP ***********************************************************************************************
demo.example.com           : ok=3    changed=1    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0
ansible-pilot $ ssh [email protected]
Last login: Wed Nov 10 10:38:59 2021 from 192.168.43.5
[[email protected] ~]$ sudo su
[[email protected] devops]# chage -l example
Last password change     : Nov 08, 2021
Password expires     : Feb 06, 2022
Password inactive     : never
Account expires      : never
Minimum number of days between password change  : 7
Maximum number of days between password change  : 90
Number of days of warning before password expires : 7

code with ❤️ in GitHub

Recap

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November 10, 2021