Adventures in Puppet: concat module

"R.I. Pienaar has a Puppet module on github called "concat". Its premise is very simple, it just concatenates fragments of text together into a particular file.

"I'm sure that a more seasoned Puppet veteran would have had this running in no time, but since it introduced some new concepts for me, I thought I'd throw up some notes of how I'm using it. I was particularly interested in an example usage I saw which lists the puppet modules a system is using in its /etc/motd, but because of the way Ubuntu handles constructing the motd, I needed to slightly rework the example. In Ubuntu, the /etc/motd file is constructed dynamically when you log in – this is done by pam_motd which executes the scripts in /etc/update-motd.d/. One of those scripts (99-footer) will simply append the contents of /etc/motd.tail to /etc/motd after everything else"

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