"flush_handlers task does not support when conditional"...??

[Frank Thommen]

Hello,

our latest yum update brought ansible from 2.4.2.0 to 2.7.2 and now we
are facing

[WARNING]: flush_handlers task does not support when conditional

we need the handlers to be flushed at that point, as later tasks rely on
previously reconfigured services to be reloaded. The "when" originates
from our role definition:

----------------------
- hosts: all
name: "====== BLAH ======"
roles:
- { role: blah, when: has_blah|default(False) }
tags:
- blah-only
----------------------
(has_blah is an inventory variable, the hosts which "have blah" are
spread over all our host groups. To organize them in a separate host
group would be too much overhead as this characteristic can change very
often).

I can't find this restriction mentioned anywhere in the changelogs or
the documentation of handlers or "meta" and I wonder

a) why this - IMHO irritating - change of behaviour has been introduced

and

b) what would be the best way to work around it


Any help or hint is appreciated.


frank

[Matt Martz]

A when statement supplied to flush_handlers has never worked.  It was silently ignored in the past, but now has a warning.

There is an open feature request to allow this to work: 

https://github.com/ansible/ansible/issues/41313

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Matt Martz
@sivel
sivel.net

[Frank Thommen]

Hmm. That would explain some random issues that we had in the past with
this playbook

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