Some friends told me for a while about collectd, why I should look at it, why munin is so painful and so on. If you’ve been reading my posts you know I have tweaked a little my $WORK munin install to make it faster and lighter. But I finally took time to explore collectd, and [...]
I already blogged about my experiments with mcollective & xen but I had something a little bigger in my mind. A friend had sent me a video showing some vmware neat features (DRS mainly) with VMs migrating through hypervisors automatically.
So I wrote a “proof of concept” of what you can do with an awesome tool [...]
Another cool project I keep an eye on for some weeks is “the marionette collective“, aka mcollective. This project is leaded & develloped by R.I. Pienaar, one of the most active people in the puppet world too.
Mcollective is an framework for distributed sysadmin. It relies on a messaging framework and has many features included : [...]
I’ve been lazy at maintaining my servers recently and decided to start playing with puppet reports. First I started with something simple that helps me to find on which machines my manifests have some failure.
So here’s a quick and dirty code that goes through Puppet’s reportdir and points out neglected machines.
#!/usr/bin/env ruby
require ‘puppet’
require ‘find’
require ‘yaml’
require [...]
On my Solaris machines at $WORK I use iMil’s pkgin to install additional software. But until today, I add to do it by hand, on every machine… Not really what I like to do after a little more than a year using puppet. So I wrote a provider to manage packages with pkgin. It was [...]
At $WORK I started using Nginx a while ago, first as a front end to my mongrel instances for puppet. Recently I began to use it for one of its most know features : reverse proxy (and caching too). Of course this work had to be puppetized !
This is a summary of what I’ve done [...]
Today I started installing a reverse proxy at $WORK. I choose to follow this way, and all my DNS data is stored in my CMDB. Once again, the solution came from #puppet ! You can embed some “pure” ruby code in ERB templates. And, yes, you can query your database !
<%
dbh = DBI.connect("DBI:Mysql:yourbase:mysql.mycorp.com", "you", [...]
I’m a fan of documentation, over the years I’ve ended up supporting more
than one business critical system that has less documentation than you get
from a cat /dev/null.
The only downside, and I’ve been bitten by a couple of things like this
over the…
In my iptables configurations, I generally allow all traffic I am interested in and deny the rest, logging anything that is denied. I found that this can get a bit noisy with loads of connections to udp:137 and udp:500, etc. so I decided to deny the more common ports without logging. But which are the [...]
à $WORK je réinstalle des Solaris 10, et il y a des petits trucs qui font que l’environnement n’est pas directement convivial, surtout quand on a l’habitude d’une debian où il y a mass wrappers. Heureusement, le dernier né de tonton iMil est dispo et fonctionne du tonnerre. De même, il n’y a pas de [...]
