The Right Way(tm) to change password hashes on FreeBSD with Puppet
Describing what I really wanted to happen a coworker of mine, Andrew Hust, was able to help me write up the ruby to get it done. So without further delay:
I will be sending this to the FreeBSD puppet port maintainer and submitting it as a patch to the port soon. I wanted to get it out there so we could get some feedback.
Update: See the new patch I posted in the comments.