Hi all,
I'm trying to figure out why the expression "false and (var is undefined)",
when 'var' has the value of an undefined variable, returns true. Here it is
an example:
- hosts: localhost
vars:
g: "{{ z }}"
is_false_var: false
tasks:
- debug: "msg='this must not be shown'"
when: (is_false_var) and (b is undefined)
ignore_errors: yes
- debug: "msg='this must not be shown'"
when:* (is_false_var) and (g is undefined)*
ignore_errors: yes
- debug: "msg='this must not be shown'"
when: (is_false_var) and false
ignore_errors: yes
- debug: "msg='this must not be shown'"
when: (is_false_var) and true
ignore_errors: yes
- debug: "msg={{ is_false_var and g is undefined }}"
ignore_errors: yes
That returns:
PLAY [localhost]
***************************************************************
TASK [setup]
*******************************************************************
ok: [localhost]
TASK [debug]
*******************************************************************
skipping: [localhost]
*TASK [debug]
*******************************************************************ok:
[localhost] => { "msg": "this must not be shown"}*
TASK [debug]
*******************************************************************
skipping: [localhost]
TASK [debug]
*******************************************************************
skipping: [localhost]
TASK [debug]
*******************************************************************
fatal: [localhost]: FAILED! => {"failed": true, "msg": "{{ z }}: 'z' is
undefined"}
...ignoring
PLAY RECAP
*********************************************************************
localhost : ok=3 changed=0 unreachable=0 failed=0
Any ideas or thoughts about the avobe?
Thanks!
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