My Ruby skills are practically non-existant, but I’ve managed to put together a relatively readable custom fact for identifying my Torque queues by a node’s hostname. Behold, HostgroupFact! Now I can factor out my hosts.equiv files back to a parent class, rather than duplicating the same file specifications on a per-queue basis.
class cluster-host inherits public-host [...]
If I apply a set of classes to a puppet client, I may need to roll back those classes’ changes later. Granted, I could just edit out those classes, reformat the system, and rebuild it from scratch, but there may be times when I want to undo my changes in a more granular fashion. So [...]
It all started so simply: I was going to set up a little Xen instance to be my next cluster submit host, and needed a spare address for it:
I started setting up an instance for ch208i.cae.tntech.edu, since it was no longer on the Xen host like it was several months ago. Crap, the reason it’s [...]
Back in 2000, when some of us in engineering were talking about how best to improve our facilities for high-performance and research computing for our graduate students, we came to a few conclusions:
Software was more important than hardware.
Some software ran only under Windows, some had no Windows version at all.
Of the non-Windows software people cared [...]
Creating a managed infrastructure can go pretty slowly when you’re beset with a combination of bare competence and a work schedule that’s overrun with non-infrastructural tasks. So yes, it’s been just under a year since I wrote up how to make Debian packages from commercial software. On to getting similar capabilities out of the Solaris [...]