Extract exact value from stdout_lines from Ansible debug - ansible

Question

I got my playbook from which I get value what I need through debug method, However I am not able to get exact value of child of my debug var
Below is my playbook
- hosts: db
tasks:
- name: Checking if For Page Life Expectancy.
win_command: sqlcmd -q "SELECT [object_name],[counter_name],[cntr_value] FROM sys.dm_os_performance_counters WHERE [object_name] LIKE '%Manager%'AND [counter_name] = 'Page life expectancy'"
register: win_command_result
- debug:
var: win_command_result.stdout_lines.object_name
And We get output like this
TASK [debug]
ok: [db1.local] => {
"win_command_result": {
"changed": true,
"cmd": "sqlcmd -q \"SELECT [object_name],[counter_name],
[cntr_value] FROM sys.dm_os_performance_counters WHERE [object_name]
LIKE '%Manager%'AND [counter_name] = 'Page life expectancy'\"",
"delta": "0:00:01.099974",
"end": "2018-09-11 05:08:36.022907",
"failed": false,
"rc": 0,
"start": "2018-09-11 05:08:34.922933",
"stderr": "",
"stderr_lines": [],
"stdout": "object_name
counter_name
cntr_value \r\n---------------------------
----------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------------------------------------------------------- --------------------\r\nSQLServer:Buffer Manager
Page life expectancy
238579\r\n\r\n(1 rows affected)\r\n",
"stdout_lines": [
"object_name
counter_name
cntr_value ",
"---------------------------------------------------------
----------------------------------------------------------------------- -------------------------------------------------------------------------------------------------------------------------------- --------------------",
"SQLServer:Buffer Manager
Page life expectancy
238579",
"",
"(1 rows affected)"
]
}
}
We only need value of cntr_value which is 238579
If i set as I though that cntr_value is child of stdout_lines
- debug:
var: win_command_result.stdout_lines.cntr_value
It says
ok: [db1.local] => {
"win_command_result.stdout_lines.cntr_value": "VARIABLE IS NOT DEFINED!"
}
How do I extract exact value of cntr_value

Answer 1

Your output final variable is:
myvar.win_command_result.stdout
So if you want to extract the number, do a regex:
- name: Debug
debug:
msg: "{{ myvar.win_command_result.stdout | regex_search('\\d{6}')}}"
Another option:
- name: Fact
set_fact:
mylist: "{{ myvar.win_command_result.stdout_lines | list }}"
- name: Debug
debug:
msg: "{{ item | regex_search('\\d+') }}"
with_items: "{{ mylist[2] }}"