Another nice shortcut that is a bit of syntactic sugar for "fail + when" is
the assert module. It's a little weird because it has the "that" in there
but we needed a key name for the argument.
- assert:
that:
- "confirmation == 'YES'"
OR:
- assert: { that: "confirmation == 'YES' }
etc
On Fri, Aug 1, 2014 at 3:14 PM, Amr Ali <[email protected]> wrote:
> First of all failed_when doesn't work for vars_prompt only for tasks..
>
> here is what you could do :
>
> - hosts: all
> any_errors_fatal: yes
> vars_prompt:
>
> name: "confirmation"
> prompt: "Are you sure you want to run this playbook? Answer with
> 'YES'"
> default: "NO"
> private: no
>
> tasks:
> - name: Check Confirmation
> fail: msg="Playbook run confirmation failed"
> when: confirmation != "YES"
>
>
> note the use of any_errors_fatal, this is important because otherwise the
> check task will only fail for the current host only, this makes the whole
> playbook fails on any errors.
>
> problem with this is that it's not foolproof for instance if you did
> confirm the run and any of your tasks failed, it'd fail the whole playbook
> as opposed to the default behavior of taking out the just the host that
> failed.
>
> the only way to counter this is to use when: confirmation == "YES" in all
> your tasks, instead of using a primary "Fail Task", a bit ugly but a safer
> route depending on your use case.
>
> also if you go the "Fail Task" route keep in mind that this won't work if
> your playbook uses roles, in this case use a pre_tasks instead of a
> normal tasks.
>
>
> On Friday, August 1, 2014 7:13:11 PM UTC+2, maticm1 wrote:
>>
>> How do you set up a confirmation prompt before running a playbook?
>>
>> I'd like to have to enter "YES" before the playbook makes any changes to
>> hosts. Right now I have the following code in site.yml, but it's not
>> working.
>>
>> vars_prompt:
>> - name: "confirmation"
>> prompt: "Are you sure you want to run this playbook? Answer with
>> 'YES'"
>> default: "NO"
>> private: no
>> failed_when: "confirmation != YES"
>>
>>
>> --
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