Executive Summary: Each host grabs its own information from a database at random a couple times a day. However, we can force any host to update at any time, if needed.
A Bit More Detail: I want every system to run a specific command (with a class defined as a result) that retrieves information about the system from a remote database. I want this to run 2-3 times per day, but I don't care when during the day as long as it's likely to be reasonably spread out. This is to prevent lots of simultaneous connections to the database (not a problem for the database, just a philosophical approach of mine). Thus, the dist class "operator" seems the best fit. http://www.cfengine.org/manuals/cf3-reference.html#dist-in-classes Additionally, I want to be able to force any system to evaluate the promise at any time if an admin makes a change about a system in the database and wants that information immediately available to the system. That's done through the use of an external file. If the file exists, a promise of the same name is created, the file is deleted, and the promise is evaluated. Hopefully that clarifies it. :) Justin P.S. Our "asset" command is a script that hits our Asset Tracker web interface with a crafted AJAX URL. That's the remote database front end. -----Original Message----- From: nwat...@symcor.com [mailto:nwat...@symcor.com] Sent: Wednesday, March 10, 2010 6:01 AM To: Justin Lloyd Cc: help-cfengine@cfengine.org; help-cfengine-boun...@cfengine.org Subject: Re: Evaluating a promise occasionally I found that difficult to understand. Perhaps you can simplify it? Assuming I've understood some of it then a module might be good way to go. Have the module script run at interval, 12 hours, and return a class based on results. Another option is to use Cfengine's file server ability to have the client download files from a peer server. If you want the option to run the promise outside of the 12 hour lock then you can run the agent using -Kb to run the bundle without locking. Another way would be to define hard times but or with a custom class: Hr12|runme:: then define the runme class at run time. Sincerely, -- Neil Watson 416-673-3465 This electronic communication and any attachments may contain confidential and proprietary information of DigitalGlobe, Inc. If you are not the intended recipient, or an agent or employee responsible for delivering this communication to the intended recipient, or if you have received this communication in error, please do not print, copy, retransmit, disseminate or otherwise use the information. Please indicate to the sender that you have received this communication in error, and delete the copy you received. DigitalGlobe reserves the right to monitor any electronic communication sent or received by its employees, agents or representatives. _______________________________________________ Help-cfengine mailing list Help-cfengine@cfengine.org https://cfengine.org/mailman/listinfo/help-cfengine
