Talk: Understanding the Data Lookup Pattern
In February 2018 I had the pleasure of attending Config Management Camp 2018 to give a talk alongside Jan Ivar Beddari (@beddari). For this talk I drew on some of the topics discussed in...
Craig Dunn Blog
Managing Puppet Secrets with Jerakia and Vault
Introduction and HistoryOver the past couple of years I’ve talked a lot about a project called Jerakia. Jerakia is a data lookup system inspired by Hiera, but built to be a stand-alone solution that...
Solving real world problems with Jerakia
Background I’ve always been a great admirer of Hiera, and I still remember the pain and turmoil of living in a pre-Hiera world trying to come up with insane code patterns within Puppet to...
Puppet data from CouchDB using hiera-http
Introducing hiera-http I started looking at various places people store data, and ways to fetch it and realized that a lot of data storage applications are RESTful, yet there doesn’t seem to be any...
I’m joining Puppet Labs
Back in September last year I flew over to the US for PuppetConf 2011, and more recently took a trip to Edinburgh for PuppetCamp. Both times when I returned my wife asked me how...
Designing Puppet – Roles and Profiles.
Update, Feb 15th.Since writing this post some of the concepts have become quite popular and have generated quite a lot of comments and questions in the community. I recently did I talk at Puppet...
Introducing hiera-mysql MySQL Backend for Hiera
Introduction Some time ago I started looking at Hiera, a configuration datastore with pluggable back ends that also plugs seamlessly into Puppet for managing variables. When I wrote hiera-gpg a few months ago I realised how easy...
Secret variables in Puppet with Hiera and GPG
Last week I wrote an article on Puppet configuration variables and Hiera. This almost sorted out all my configuration variable requirements, bar one; what do I do with sensitive data like database passwords, hashed user...
Puppet configuration variables and Hiera.
Managing configuration variables within Puppet has always given me a bit of a headache, and I’ve never really found a way to do it that I’m all together happy with, particularly when dealing with...
Puppet, Parameterized classes .vs. Definitions
Firstly, a little background on this topic. During PuppetConf this year I attended a very interesting talk by Digant C. Kasundra about the Puppet implementation at Stanford University. At one point he asked, “Who...
Configuring Tomcat properties files with Augeas and Puppet.
Introduction This post covers quite a few different things, it is taken from a real-world example of something I was asked to do recently which not only involved some cool Puppetmastery using exported resources,...
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