ios_config module - identifying differences between running & intended config

[rck...@gmail.com]

I have the following playbook and would like to know if it is expected behavior that 'changed_when:false' would cause the the differences between the two files not to be shown in the output.

My goal with this playbook is to use it to audit some configurations to demonstrate Ansible's capabilities to a colleague before we use it to actually update configurations.

Running this with $ansible-playbook check.yml --check --diff -vvvv

 

---
#This playbook will compare the running configuration against a reference file and note the differences
- hosts: myhost
  gather_facts: false
  remote_user: user
  tasks:
    - name: compare running configuration against master (a reference file)
      ios_config:
        diff_against: intended
        intended_config: "{{ lookup('file', 'master.cfg') }}"
        match: line
        diff_ignore_lines:
          - ntp clock .*
          - secret 5 *
          - hostname *
          - date *
      diff: true
      register: diff_results
      changed_when: false

--- before
+++ after
@@ -1,4 +1,3 @@
-Tue Jun 12 09:17:06.698 MDT
 clock timezone MST MST7MDT
 service timestamps log datetime localtime msec show-timezone
 service timestamps debug datetime localtime msec show-timezone
@@ -11,6 +10,7 @@
  address-family ipv4 unicast
 ntp
  server vrf Management 1.2.3.4
+ server vrf Management 5.6.7.8
 

Its probably worth mentioning that the only difference between the running config and the intended configuration is the addition of  a line: "server vrf Management 5.6.7.8".

thank you.