Posted 2014-04-20 05:08:00 GMT
There's an awesome tool to keep UN*X /etc directories under revision control. In theory this is where all the system configuration should be. Of course it tends to leak out, but it's a start :)
One missing piece is the list of installed packages: surely this is the main overview of a systems configuration?
Anyway, that's easy to add to etckeeper, here's the script that I use
set -x set -e apt-get install -qy etckeeper git etckeeper uninit -f perl -pi -e 's/VCS="bzr"/VCS="git"/' /etc/etckeeper/etckeeper.conf cat > /etc/etckeeper/post-install.d/00-vii-etc-package-list <<EOF #! /bin/sh etckeeper list-installed > /etc/etckeeper/vii-installed-packages.list EOF chmod +x /etc/etckeeper/post-install.d/00-vii-etc-package-list etckeeper init
and it's easy to run on a new server with cat ~/Junk/setup-etckeeper.sh | ssh root@newserver bash -s
Of course one could set up chef or puppet or something but with just a handful of machines the goal of better configuration management is not automation but clarity. This is a debugging tool so you can figure out what happened when something broke and potentially helpful for reverting.
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