Deploying and configuring Mcollective with Puppet

April 30th, 2010 | Posted by ProfFalken in DevOps - (0 Comments)

Here  we go – the main event!

I’ve finally got around to publishing my puppet module to deploy MCollective to systems.

The module can be found at http://github.com/proffalken/proffalkensPuppetModules and includes the puppet and service agents and the facter facts plugin from http://code.google.com/p/mcollective-plugins/ to provide control over MCollective from the outset.

The module is setup so that if a new agent needs to be deployed, the agent can just be dropped in the “file/agent” directory and puppet will push it at next run.  As the puppet agent is included by default, it means that you can copy the new agent in place and then force a puppet run in seconds instead of waiting for 30 minutes – the same applies for fact providers…

If anyone has any additional fact providers/agents that they believe should be pushed by default, please let me know and I’ll do my best to include them.

Quick creation of Puppet Modules

April 28th, 2010 | Posted by ProfFalken in DevOps | Linux | Open-Source - (1 Comments)

I’ve been playing with Puppet for some time now and creating the directory structure for modules as defined in the puppet best practice guide gets tedious after a while, so I threw together a simply base script that takes a single argument and builds the directory structure for you.

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Installing Exim 4.71 on Centos5

April 27th, 2010 | Posted by ProfFalken in DevOps - (3 Comments)

One of my main gripes with Centos/Redhat is the insistence to use sendmail as the default MTA when something as beautiful as Exim exists and provides far greater flexibility.

Thanks to the folks at atrpms, it is possible to install Exim 4.71 on Centos 5 with the following steps:

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Mcollective on Centos

April 27th, 2010 | Posted by ProfFalken in DevOps | Linux | networking | Open-Source - (5 Comments)

Table of contents for Adventures with Mcollective

  1. Adventures with MCollective
  2. Mcollective on Centos
  3. Create a local repository for MCollective and ActiveMQ

OK, so I might have been a bit hasty to dismiss Centos in my last post – a couple of people have contacted me and told me about additional repos that I can use for rubygems etc – so as a brief interlude, here’s the instructions for getting MCollective and ActiveMQ up and running on Centos 5:

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Adventures with MCollective

April 22nd, 2010 | Posted by ProfFalken in DevOps | Linux | Open-Source - (4 Comments)

Table of contents for Adventures with Mcollective

  1. Adventures with MCollective
  2. Mcollective on Centos
  3. Create a local repository for MCollective and ActiveMQ

A few weeks ago I was at UKUUG and met an intriguing project (and it’s owner) called mcollective.

MCollective is a system that enables you to run queries across multiple servers in real time and have the responses come back to you in a speed you would only expect if you were physically at the console.  In other words:- it’s f**king quick!

This post sets out to show you how to install it on Ubuntu Server (the instructions should apply to both 9.10 and 10.04 RC), the next set in the series will help you get it up and running across multiple machines!

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