Ansible variable is not being updated from on unmatched conditions
I have the below playbook which actually compares two routers(basically pairs) for running configuration and if there is a match and mismatch it should report out.
---
-
hosts: '{{d1}}'
gather_facts: no
connection: network_cli
tasks:
- name: Task1 - Fetching running configuration of device A
cli_command:
command: show run
#output: json
register: runA
#- debug:
# msg: "{{runA.stdout_lines}}"
-
hosts: '{{d2}}'
gather_facts: no
connection: network_cli
tasks:
- name: Task2 - Fetching running configuraiton of device B
cli_command:
command: show run
#output: json
register: runB
#- debug:
# msg: "{{runB.stdout_lines}}"
- hosts: localhost
gather_facts: no
roles:
- ansible-network.network-engine
vars:
runconfA: "{{hostvars[d1]['runA']['stdout']}}"
runconfB: "{{hostvars[d2]['runB']['stdout']}}"
atomic_update_mismatch: false
tasks:
#- debug:
# msg: "{{hostvars[d1]['runA']['stdout']}}"
- name: Task3 - Parse Atomic Update from Running config of device A
command_parser:
file: "parsers/atomic_update.yaml"
content: "{{ runconfA }}"
- name: Task4 - Save Atomic Update output
set_fact:
atomic_update_deviceA: "{{output}}"
- name: Task5 - Parse Atomic Update from Running config of device B
command_parser:
file: "parsers/atomic_update.yaml"
content: "{{ runconfB }}"
- name: Task6 - Save Atomic Update output
set_fact:
atomic_update_deviceB: "{{output}}"
- debug:
msg:
- "atomic update from device a: {{atomic_update_deviceA}}"
- "atomic update from device b: {{atomic_update_deviceB}}"
- name: Task7 - Compare output from both devices
set_fact:
atomic_update_mismatch: true
when: atomic_update_deviceA != atomic_update_deviceB
- debug:
msg: "does running config has atomic update mismatch: {{atomic_update_mismatch}}"
#msg: "check if {{atomic_update_deviceA}} == {{atomic_update_deviceB}}"
#- "Atomic Update of device B: {{atomic_update_deviceB}}"
There is another playbook which contains the regex, where I find out using regex, when matched puts the result in variable and returns the variable to the first playbook
---
#- debug: var=runconfA
- name: Match atomic update from running-config
export: yes
pattern_match:
match_all: yes
#match_greedy: yes
#regex: ".*\\b(atomic)\\b.*"
regex: "^.*\\batomic\\b.*$"
register: output
Execute using below command:
ansible-playbook config_mfg_ce.yml -i inventory.txt –extra-vars "d1=A d2=B"
where d1 is A router and d2 is B router.
When I run this, If we have atomic match in router A but not router B it still updates as "there is no mismatch" which is wrong, this is due to the output variable updating router A's value/result back for router B as well and is not refreshed when router B's value is updated in the registered variable "output".
How can I pass the output variable from the regex playbook to the config_mfg_ce.yml playbook with separate updated output variable value for router A and router B?
Playbook Output:
PLAY [A] ************************************************************************************************************************************************************
TASK [Task1 - Fetching running configuration of device A] ***********************************************************************************************************************************
ok: [A]
PLAY [B] ***********************************************************************************************************************************************************
TASK [Task2 - Fetching running configuraiton of device B] ***********************************************************************************************************************************
ok: [B]
PLAY [localhost] ****************************************************************************************************************************************************************************
TASK [Task3 - Parse Atomic Update from Running config of device A] **************************************************************************************************************************
[DEPRECATION WARNING]: set_available_variables is being deprecated. Use "@available_variables.setter" instead.. This feature will be removed in version 2.13. Deprecation warnings can be
disabled by setting deprecation_warnings=False in ansible.cfg.
fatal: [localhost]: FAILED! => {"msg": "invalid directive in parser: set_fact"}
PLAY RECAP **********************************************************************************************************************************************************************************
A : ok=1 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
B : ok=1 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
localhost : ok=0 changed=0 unreachable=0 failed=1 skipped=0 rescued=0 ignored=0
Any help is much appreciated.
Best Answer
This won't work with a registered variable, because:
Ansible docs
This limitation of variables in Ansible can be mitigated by using
set_fact
like this by adding aset_fact
for the registered output: