how to count success and failure of a task ?

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1

Hi Guys,

I am verifying Cisco IOS image via this playbook, this runs great. However, I would like to add a count on successful and failure of the task I run. How can I achieve that?

For eg. I have 100 devices to verify code out of which 95 made a successful upgrade and 5 does not make, from the below playbook how can I add a count ? to capture no. of successful upgrade and failure?

Please help ?

2

If you have the results registered in 'myvar' (assuming loop) you
should be able to get a count like:

debug: msg="{{(myvar.results|select('failed'))|length}}"

3

Hi Brian,

I tried your solution, my playbooks run successfully but not giving desired output.

I used it like below in my playbook:-

  • name: Standard OS Validation after Upgrade.
    set_fact:
    standard_OS: “{{ item.1 }}”
    when:

  • item.1 == “15.0(2)SG10,”
    with_indexed_items: “{{ sh_ver.stdout[0].split() }}”

  • fail:
    msg:

  • “Standard OS is not on this device {{ lookup(‘dig’, hostip, ‘qtype=PTR’) }}”
    when:

  • ‘standard_OS is undefined’
    register: myvar.results

  • debug: msg=“{{(myvar.results|select(‘failed’))|length}}”

That’s output I get:-

TASK [fail] ********************************************************************
task path: /home/user/ansible/po-ios-va.yml:36
skipping: [switch_A] => {“changed”: false, “skip_reason”: “Conditional check failed”, “skipped”: true}
fatal: [switch_B]: FAILED! => {“changed”: false, “failed”: true, “msg”: [“Standard OS is not on this device switch_B.”]}

TASK [debug] *******************************************************************
task path: /home/user/ansible/po-ios-va.yml:42
fatal: [switch_A]: FAILED! => {“failed”: true, “msg”: “Unexpected templating type error occurred on ({{ (myvar.results|select("failed"))| length }}): object of type ‘generator’ has no len()”}
to retry, use: --limit @/home/user/ansible/po-ios-va.retry

Please Suggest.

4

register: myvar.results <= this is incorrect, you cannot register to
a subindex.

correct:
register: myvar

you get myvar.results IF that task has with_.

I really don't understand what you are trying to do or why the first
task would even continue if there are any failed items as that would
fail the whole task.

5

sure thing, guess I need work on my code more, it is still workable as expected.

Appreciate your help Brian.