[chef] Re: Re: Re: Re: progress of a chef run

["steve ." < >]

It looks like event handlers can now hook into one of three places:

 * Start handlers hook in at the beginning of a run.

 * Report handlers hook in at the end of a successful run.

 * Exception handlers hook in after an exception is raised (i.e., after an _unsuccessful_ run).

It seems to me that you'd need your code to fire at the beginning of a run and monitor resources as they're converged.  So that'd be a start handler.  I don't know of any start handlers in the wild (or within my organization) ... so I'm not sure how well-explored this area is in the community.  Or even if there's any documentation on using them.

I suggest an alternative:  Write your own Chef output formatter that streams a progress update to a remote service.

Observe the behavior of the nyancat Chef formatter:

https://github.com/andreacampi/nyan-cat-chef-formatter/blob/master/lib/nyan-cat-chef-formatter.rb

Just take out the nyancat bits and replace them with posting a JSON object containing, perhaps, the run list being executed, start/end times of the run, the number of resources being considered and the number of resources processed and the final status of the run (success/fail).

If I had a Chef run that was taking 24 hours, I'd be looking at what was taking so long and trying to break those steps out into a separate orchestration tool, since I have a RunDeck server lying around that's pretty well-suited for scheduling and executing recurring batch jobs.  Or, to keep it in the Opscode family, I'd be clamoring to take some of those long-running processes out of the "regular" Chef run and slot them into some kind of recurring Pushy task.

On Thu, Aug 8, 2013 at 8:03 AM, Ranjib Dey < " target="_blank"> > wrote:

Event handlers can do this.

On Aug 8, 2013 3:34 AM, "Lucian Ciufudean" < " target="_blank"> > wrote:

I might have not been clear.

Let's say I start a chef run with 1k recipes and it will take 24h to execute, is there a callback mechanism that chef uses while the run is in progress, not after its completion as is the case with report handlers? I want to be able to say to the user at one moment that "55 out of 1000 resources executed".

Lucian

On Tue, Aug 6, 2013 at 2:29 PM, Mike < " target="_blank"> > wrote:

Take a look at this handler: 
https://github.com/jamesc/chef-handler-elapsed-time

-M

On Tuesday, August 6, 2013, wrote:

Guys, is there a mechanism (maybe a chef handler trick) so that I can report
(in a file for ex) the report of a long running chef run?

Cheers
Lucian