[Pacemaker] Time/Date Based Expressions in the CRM Shell

[Alan Robertson]

Dejan Muhamedagic wrote:
> Hi,
> 
> On Wed, Mar 31, 2010 at 10:56:29AM +0100, Darren.Mansell at opengi.co.uk wrote:
>> Apologies if this is in the documentation but I can't see how to use the
>> time/date based expression resource constraints in the CRM shell.
> 
> There's usage in the crm shell documentation and help for the
> location constraint (crm configure help location). There's
> nothing about the date format, but you should be able to find
> about that in the configuration explained document. It's some ISO
> standard (looks a bit awkward).
> 
> Thanks,
> 
> Dejan
> 
>> Can anyone provide an example config or point me to any documentation
>> for how to use it?
>>
>> I'm trying to use these constraints to run scripts at certain times
>> using the Anything RA, essentially using Pacemaker like an advanced
>> cron. Does this sound like the right way to do it?


The strictly time-based one based on the ISO date format isn't so 
interesting (IMHO) - because once the date has passed, it has passed. 
But there is one which is very much modeled after cron that seems quite 
interesting to me.

 From what I can tell, that's the format you'd use for doing things like 
"fail my resources back on Sunday night between 0200 and 0300".

-- 
     Alan Robertson <alanr at unix.sh>

"Openness is the foundation and preservative of friendship...  Let me 
claim from you at all times your undisguised opinions." - William 
Wilberforce