the when: doesn't really default to true. Instead when: just needs to
'see' a true or a false. It doesn't care if that is from finding a value
of true or false by looking up what is stored in a variable or by running
something that returns a true or false.
adding the '== true' makes the when:
Thank you so much for the explanation. I understand it, but am curious as
to why "reboot required", without == true or == false, will reboot the
server if true is, in fact, returned, and not reboot if false is returned.
Does "when" default to true if no argument is explicitly provided?
On We
Breaking it down a bit
reboot_hint
is the name of the variable you have chosen to store the registered output
in.
Inside reboot_hint is the output from the module. The module results are
put into a key value structure with a key of results. This is probably
done to keep the structured modul
Jon,
Both of your suggestions work; thanks!
For my edification, why do either work when "reboot_required": true, and
not "reboot_required": false, or why don't they simply resolve against
"reboot_required" (without true or false)?
Dimitri
On Wednesday, September 30, 2015 at 9:38:33 AM UTC-4,
I suggest you add a debug on the registered variable and/or run
ansible-playbook with -v
this will show you the contents of the registered variable. It will be
some JSON. Sometimes its useful to paste the JSON into
http://jsonlint.com/ so you can see a pretty printed version of the JSON.
then
The above doesn't work. If I run as-is, then I get the following error:
when: reboot_hint.stdout.find('"reboot_required": true') != -1
^
This one looks easy to fix. There seems to be an extra unquoted colon in
the line
and this is confusing
Thanks, Jon.
This should work?:
- name: win update
win_updates:
category:
['SecurityUpdates','CriticalUpdates','Updates','Tools','DefinitionUpdates','UpdateRollups']
register: reboot_hint
- name: reboot server
raw: 'cmd /c shutdown /r /t 0'
when: reboot_hi
You need to use 'register' to capture the results into a
variable:
http://docs.ansible.com/ansible/playbooks_variables.html#registered-variables
Then you can call another module to do the reboot followed by a 'when',
probably something like
when: result_var.reboot_required
worth having a loo
