os_hardening: Add test for setting password warning days via variable os_auth_pw_warn_age

Signed-off-by: Norman Ziegner <norman.ziegner@ufz.de>

molecule/os_hardening/converge.yml

@@ -29,6 +29,7 @@
     os_filesystem_whitelist: []
     os_yum_repo_file_whitelist: ['foo.repo']
     os_users_without_password_ageing: ['pw_no_ageing']
+    os_auth_pw_warn_age: 7
     os_netrc_enabled: false
     os_ignore_users: ["shell_sys_acc"]
     os_ignore_home_folder_users: ["user_with_777_home"]

molecule/os_hardening/verify_tasks/pw_ageing.yml

@@ -14,9 +14,19 @@
   changed_when: false
   register: expiry_date
 
-- name: Check that the expiry date of pw_ageing is 30 days
+- name: Check that the expiry date of pw_ageing is 60 days
   ansible.builtin.assert:
     # this uses the date from the expire_date variable and subtracts the current date.
     # it should be bigger that the password_expire_min of the user "pw_no_ageing"
     that:
       - "{{ ( expiry_date.stdout | trim | to_datetime('%b %d, %Y') - ansible_date_time.date | to_datetime('%Y-%m-%d')).days }} == 60"
+
+- name: Get Password Expiry warning days for pw_ageing
+  ansible.builtin.shell: chage -l pw_ageing | grep "warning before password expires" | cut -d ":" -f 2
+  changed_when: false
+  register: expiry_warndays
+
+- name: Check that number of days of warning before password expires is 7 days
+  ansible.builtin.assert:
+    that:
+      - "expiry_warndays.stdout | trim == '7'"