Ansible regex_replace or regex_search - regex

Question

I am trying to match the "OK" from the following output with regex and store it in a varible:
System 'server.mylabserver.com'
status OK
monitoring status Monitored
monitoring mode active
on reboot start
load average [0.00] [0.01] [0.05]
cpu 0.1%us 0.1%sy 0.0%wa
memory usage 367.9 MB [20.0%]
swap usage 0 B [0.0%]
uptime 2h 10m
boot time Mon, 02 Apr 2018 06:51:01
data collected Mon, 02 Apr 2018 09:01:02
Ansible code with "regex_replace" that I've tried:
- name: Fetch the monit status
shell: "monit status | tail -n +3"
register: monit_status_raw
tags: basic_monitoring
- name: Extract monit variables
set_fact:
vmstatus: "{{ monit_status_raw | regex_replace('^\s\s([a-z]*)\s+', '\\1:')}}"
Error:
The offending line appears to be:
set_fact:
vmstatus: "{{ monit_status_raw | regex_replace('^\s\s([a-z]*)\s+', '\\1')}}"
^ here
We could be wrong, but this one looks like it might be an issue with
missing quotes. Always quote template expression brackets when they
start a value. For instance:
with_items:
- {{ foo }}
Should be written as:
with_items:
- "{{ foo }}"
Ansible code with "regex_search" that I've tried:
- name: Fetch the monit status
shell: "monit status | tail -n +3"
register: monit_status_raw
- name: Extract monit variables
set_fact:
vmstatus: "{{ monit_status_raw | regex_search('^\s\sstatus\s+(.*)$') }}"
Error:
The offending line appears to be:
set_fact:
vmstatus: "{{ monit_status_raw | regex_search('^\s\sstatus\s+(.*)$') }}"
^ here
We could be wrong, but this one looks like it might be an issue with
missing quotes. Always quote template expression brackets when they
start a value. For instance:
with_items:
- {{ foo }}
Should be written as:
with_items:
- "{{ foo }}"
Any idea what it's wrong in the regexes?
Thank you,
Dan

Answer 1

I think if you'd like to use regexp_search - you need to give a string and think about escaping characters, and then you need to use some construction as:
with_items
- "{{ monit_status_raw.stdout_lines }}"
But I think it will be simpler:
- name: Fetch the monit status
shell: 'monit status | tail -n +2 | grep "^\s*status" '
register: monit_status_raw
- set_fact:
vmstatus: "{{ monit_status_raw.stdout.split('status')[1]| replace(' ','')}}"
You will get vmstatus = 'Ok', if you use your sample.