Hi all - I recently upgraded to Ansible core 2.15, and started hitting
"Conditional is marked as unsafe, and cannot be evaluated." As discussed
at
https://docs.ansible.com/ansible/latest/porting_guides/porting_guide_9.html,
I removed templating from when and assert. All seemed fine, but then I
discovered loop variables don't appear to be interpolated in assert without
templating.
As an example, consider the following playbook that aims to confirm two
variables, varA and varB, are defined (in the sample output, they are not
defined):
#> cat b.yml
---
- hosts: localhost
gather_facts: no
tasks:
- name: without templating
assert:
that: item is defined
loop:
- varA
- varB
- name: with templating
assert:
that: '{{ item }} is defined'
loop:
- varA
- varB
#> ansible-playbook b.yml
[WARNING]: No inventory was parsed, only implicit localhost is available
[WARNING]: provided hosts list is empty, only localhost is available. Note
that the
implicit localhost does not match 'all'
PLAY [localhost]
**********************************************************************
TASK [without templating]
*************************************************************
ok: [localhost] => (item=varA) => {
"ansible_loop_var": "item",
"changed": false,
"item": "varA",
"msg": "All assertions passed"
}
ok: [localhost] => (item=varB) => {
"ansible_loop_var": "item",
"changed": false,
"item": "varB",
"msg": "All assertions passed"
}
TASK [with templating]
****************************************************************
failed: [localhost] (item=varA) => {
"ansible_loop_var": "item",
"assertion": "varA is defined",
"changed": false,
"evaluated_to": false,
"item": "varA",
"msg": "Assertion failed"
}
failed: [localhost] (item=varB) => {
"ansible_loop_var": "item",
"assertion": "varB is defined",
"changed": false,
"evaluated_to": false,
"item": "varB",
"msg": "Assertion failed"
}
Why is templating required to interpolate the loop variable but not other
(non loop) variables? Furthermore, is there a way to write this task
without templating and get the expected behavior?
Thanks
Rob
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