On Mon, 28 Mar 2011 17:26:31 -0400, Gary Algier <[email protected]> wrote: > On 03/28/11 16:23, Scott Henson wrote: > > On Mon, 28 Mar 2011 09:02:20 -0400, Gary Algier<[email protected]> wrote: > >> Hello, > >> > >> I would like to write a cobbler trigger to do something every time I add a > >> system. I looked at the documentation at: > >> https://fedorahosted.org/cobbler/wiki/CobblerTriggers > > > > The best example I can give you is the triggers found in the modules > > directory in the cobbler source [1]. The install_* ones and sync_* > > ones. The api passed in is a copy of BootAPI (which is the actual name > > of CobblerAPI). It is normally not ok to use BootAPI for various > > reasons, but in this case the trigger is running inside of cobblerd and > > can safely make use of BootAPI. > > > > [1] - > > http://git.fedorahosted.org/git/?p=cobbler;a=tree;f=cobbler/modules;h=a6f0c16757b388f72b45c6a41770ee65d5567821;hb=stable > > > > How do I specify a module to be run pre-system-add? > > Using an executable I would put it in: > /var/lib/cobbler/triggers/add/system/pre > with a name of my choosing. Do I create a similar directory structure and > place it in: > /usr/lib/python2.4/site-packages/cobbler/modules/add/system/pre
No, you will need to put it in /usr/lib/python2.4/site-package/cobbler/modules and name it install_pre_*. You will then want to create a function in that module named 'register' that takes no arguments and returns "/var/lib/cobbler/triggers/install/pre/*". Then you will want to have a function called 'run', which takes api, args, and logger. This will be the function that does the magic. > How does it know when to apply the modules in: > /usr/lib/python2.4/site-packages/cobbler/modules/ > or are they applied on every operation? Cobblerd loads all python files in that directory and runs the register function to identify what kind of module it is. > It looks like they are run every time and the register function tells cobbler > when it should be used, but it only seems to define pre vs post. You can return any valid trigger path and it should run it in the instances when the trigger would be run. -- Scott Henson Red Hat CIS Operator WVU Alum BSAE/BSME
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