How to debug Ansible dict for failed ports with wait_for module?

Question

I have written the below playbook to fetch the failed port status.

  - name: Check  port status
    wait_for:
     host: 127.0.0.1
     port: "{{ item }}"
     timeout: 2
     state: started
    ignore_errors: yes
    with_items:
     - 80
     - 22
     - 8080
    register: wait_result

  - debug:
     msg: "{{ 'Failed with message: ' ~ wait_result.msg  if wait_result.failed else 'Success' }}"

While fetching the msg from debug logs I am unable to get the timeout message.

PLAY [mysrv] ************************************************************************************************************************************

TASK [Gathering Facts] **************************************************************************************************************************
ok: [localhost]

TASK [Check Nagios port status] *****************************************************************************************************************
ok: [localhost] => (item=80)
ok: [localhost] => (item=22)
failed: [localhost] (item=8080) => {"ansible_loop_var": "item", "changed": false, "elapsed": 2, "item": 8080, "msg": "Timeout when waiting for 127.0.0.1:8080"}
...ignoring

TASK [debug] ************************************************************************************************************************************
ok: [localhost] => {
    "msg": "Failed with message: One or more items failed"
}

PLAY RECAP **************************************************************************************************************************************
localhost                  : ok=3    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=1

Can someone please help to correct my code?

Vladimir Botka · Answer 1 · 2023-02-01T17:03:58.750

For example, you can write the messages

    - debug:
        msg: |
          {% for i in wait_result.results|select('failed') %}
          {{ i.msg }}
          {% endfor %}

, or create a list and use it later

  failed_msg: "{{ wait_result.results|
                  select('failed')|
                  map(attribute='msg')|list }}"

^{Example of a complete playbook for testing
- hosts: localhost

vars:

failed_msg: "{{ wait_result.results|
select('failed')|
map(attribute='msg')|list }}"

tasks:

- name: Check port status
wait_for:
host: 127.0.0.1
port: "{{ item }}"
timeout: 2
state: started
register: wait_result
ignore_errors: yes
loop: [22, 25, 53, 80]

- debug:
var: wait_result
when: debug|d(false)|bool

- debug:
var: failed_msg

- debug:
msg: |
{% for i in wait_result.results|select('failed') %}
{{ i.msg }}
{% endfor %}

- assert:
that: wait_result.results|select('failed')|length == 0
fail_msg: |
{% for i in wait_result.results|select('failed') %}
{{ i.msg }}
{% endfor %}
success_msg: All services started.

gives
PLAY [localhost] *****************************************************************************

TASK [Check port status] ********************************************************************
ok: [localhost] => (item=22)
ok: [localhost] => (item=25)
failed: [localhost] (item=53) => changed=false
ansible_loop_var: item
elapsed: 2
item: 53
msg: Timeout when waiting for 127.0.0.1:53
failed: [localhost] (item=80) => changed=false
ansible_loop_var: item
elapsed: 2
item: 80
msg: Timeout when waiting for 127.0.0.1:80
...ignoring

TASK [debug] *********************************************************************************
skipping: [localhost]

TASK [debug] *********************************************************************************
ok: [localhost] =>
failed_msg:
- Timeout when waiting for 127.0.0.1:53
- Timeout when waiting for 127.0.0.1:80

TASK [debug] *********************************************************************************
ok: [localhost] =>
msg: |-
Timeout when waiting for 127.0.0.1:53
Timeout when waiting for 127.0.0.1:80

TASK [assert] ********************************************************************************
fatal: [localhost]: FAILED! => changed=false
assertion: wait_result.results|select('failed')|length == 0
evaluated_to: false
msg: |-
Timeout when waiting for 127.0.0.1:53
Timeout when waiting for 127.0.0.1:80

PLAY RECAP ***********************************************************************************
localhost: ok=2 changed=0 unreachable=0 failed=1 skipped=1 rescued=0 ignored=1}

I tried both method suggested in your code and now I am able to get the failed msg printed in debug msg. Thank you. — Kamal, Feb 01 '23 at 18:10

How to debug Ansible dict for failed ports with wait_for module?

1 Answers1