capture Ansible WARNING messages to a variable - search

Question

I have the below playbook:
- name: Play 1.5 - Check Python on each target
hosts: "{{ location }}"
user: "{{ USER }}"
ignore_unreachable: yes
ignore_errors: yes
gather_facts: false
tasks:
- setup:
gather_subset:
- network
register: setupdata
- debug:
msg: "SETUP: {{ setupdata }}"
For a few inventory hosts I get the below WARNING message when i print setupdata variable as below:
Output:
ok: [10.9.10.16] => {
"msg": "SETUP: {'warnings': [u\"No python interpreters found for host 10.9.10.16 (tried ['/usr/bin/python', 'python3.7', 'python3.6', 'python3.5', 'python2.7', 'python2.6', '/usr/libexec/platform-python', '/usr/bin/python3', 'python'])\"], 'module_stderr': u'This system is for the use of authorized users only. Individuals using this computer system without authority, or in excess of their authority, are subject to having all of their activities on this system monitored and recorded by system personnel. In the course of monitoring individuals improperly using this system, or in the course of system maintenance, the activities of authorized users may also be monitored. Anyone using this system expressly consents to such monitoring and is advised that if such such monitoring reveals possible evidence of criminal activity, system personnel may provide the evidence of such monitoring to the law enforcement officials\\n/bin/sh: /usr/bin/python: not found\\n', 'changed': False, 'module_stdout': u'', 'failed': True, 'rc': 127, 'msg': u'MODULE FAILURE\\nSee stdout/stderr for the exact error', 'ansible_facts': {u'discovered_interpreter_python': u'/usr/bin/python'}}"
}
Is it possible to search for a string No python interpreters found for host in the output above ?
I tried the below but it fails to search:
- debug:
msg: "No Python Found on {{ inventory_hostname }}"
when: setupdata | join('') | regex_search('No python interpreters found for host')
Can you please suggest how can I capture the WARNING message and search for a string in the WARNING?

Answer 1

Be aware that setupdata has a key in it named warnings that is list[str] and is a much better candidate for the actual when. You can test members of that list by changing the when: to use the search test, which pedantically speaking should be applied using the contains test, but just feeding the list into search seems to do what I expected and is easier to read
- debug:
msg: "No Python Found on {{ inventory_hostname }}"
when: setupdata.warnings is search('No python interpreters')