Ansible + external shell script how to loop over the output - ansible

Question

I have written an shell script that outputs an list of applications and the ports on which these applications listen (I can ajust this output to anything I want)
{ application: 'foo', port: '10' }
{ application: 'bar', port: '20' }
First the shell script is executed in ansible and the output is in an variable: outputscript.
Now I want to use this in an ansible loop something like this:
- name: Execute script
shell: "/home/test/test.sh"
register: output_script
- name: change file
line_in_file:
path: /home/{{ item.application }}/file.txt
regex: '^LISTEN '
insertafter: '^#LISTEN '
line: Listen {{ item.port }}
with_items:
- {{ output_script.stdout_lines }}
How can I do this?

Answer 1

Make the output of the script a valid YAML. For example
shell> cat my_script.sh
#!/bin/bash
echo '{application: foo, port: 10}'
echo '{application: bar, port: 20}'
Then, the plabook below
- hosts: localhost
tasks:
- command: "{{ ansible_env.PWD }}/my_script.sh"
register: outputscript
- file:
state: directory
path: "{{ ansible_env.HOME }}/{{ item.application }}"
loop: "{{ outputscript.stdout_lines|map('from_yaml')|list }}"
- lineinfile:
path: "{{ ansible_env.HOME }}/{{ item.application }}/file.txt"
create: true
line: "Listen {{ item.port }}"
loop: "{{ outputscript.stdout_lines|map('from_yaml')|list }}"
gives
shell> cat ~/foo/file.txt
Listen 10
shell> cat ~/bar/file.txt
Listen 20