The variable error_code below contains this string:
"failed": true
How can I use this string as the trigger for the 'when module? I am not sure how to escape these special characters so the playbook interprets them correctly. Here's what I have tried but it is not working:
- name: copying index
copy:
src: /tmp/index.html
dest: /var/www/html/
notify: reloadone
register: error_code
- name: verify content
fail:
msg: There has been an error with the index file
when: " \"failed\"\: true in error_code"
handlers:
- name: reloadone
systemd:
state: restarted
name: httpd
Put the string into the single-guotes, e.g.
- hosts: localhost
gather_facts: false
vars:
error_code: '"failed": true'
tasks:
- debug:
var: error_code
- name: verify content
fail:
msg: There has been an error with the index file
when: error_code == result
vars:
result: '"failed": true'
gives
TASK [debug] ******************************************************
ok: [localhost] =>
error_code: '"failed": true'
TASK [verify content] *********************************************
fatal: [localhost]: FAILED! => changed=false
msg: There has been an error with the index file
The next option is to convert the string to a dictionary and test the Boolean value of the attribute failed, e.g.
- hosts: localhost
gather_facts: false
vars:
error_code: '"failed": true'
tasks:
- debug:
var: error_code|from_yaml
- name: verify content
fail:
msg: There has been an error with the index file
when: result.failed
vars:
result: "{{ error_code|from_yaml }}"
gives
TASK [debug] ****************************************************
ok: [localhost] =>
error_code|from_yaml:
failed: true
TASK [verify content] *******************************************
fatal: [localhost]: FAILED! => changed=false
msg: There has been an error with the index file
If the code doesn't fail
error_code: '"failed": false'
the condition will be skipped
TASK [debug] *****************************************************
ok: [localhost] =>
error_code|from_yaml:
failed: false
TASK [verify content] ********************************************
skipping: [localhost]