Category: ‘System administration’

What’s new in Rudder 4.1

  Rudder 4.1 has been released on March 30th 2017 and brings a lot of much anticipated convenience improvements to make the best of Rudder 4.0 big new features. This article describes the most significant ones. Feel free to read the 4.1 changelog to see the complete list. Organize Rules and Directives by setting key=value tags […] Read more

Using rudder-setup to automate Rudder installation

Hello Rudder aficionados! TL;DR: rudder-setup setup-server 4.0 In the Rudder team, we regularly test Rudder, either for support or for automatic testing. That’s why we made rudder-tests. It calls Vagrant to install virtual machines and then installs Rudder on them. Since the installation part was really useful for everyone, we decided to make it an […] Read more

Practical API case: CSV compliance extraction

Introduction Hello folks! Today, I’m writing this post to talk about a solution we found to the following problem: how do you export compliance data from a Rudder installation? The use case was: how do you export Rudder compliance metrics that are currently accessible in the Web UI in a machine-usable format so you can […] Read more

Rudder 4.0 is out!

Rudder 4.0 changes for good the way we see IT management Here we are! After months of hard work, nourished by years of feedback from the community and our clients, Rudder 4.0 is out. What makes this version so special we felt it deserved its own epic version instead of pursuing towards a more discreet […] Read more

Discover the new package management implementation in Rudder

Rudder 3.2, starting from 3.2.8, offers a new package management implementation. It is new, and not as tested as the previous one, but already usable. This article explains the reason for this change, and will give an overview of the features and their usage. Why? As you may have noticed, the current package management implementation […] Read more

The first knowledge hub on release management – interview of the creators

Last month we discovered Electric Cloud, a Californian company specialized in Continuous Delivery. They did a great job creating a wiki gathering every tools and companies involved in IT auotmation, from infrastructure configuration management to continuous depolyment. As we praised this intiative, and not only because Rudder is included in the configuration management section, we […] Read more

Mustache templating with ncf and CFEngine

Why use mustache template When you start a configuration management project, you promptly discover that there are are two ways of managing your configuration files. You can either edit the existing ones or use templates to replace them all. Editing pros and cons: it is more complex and more bug prone it is easier when […] Read more

Rudder 3.1 “Frigate” release

Rudder 3.1 “Frigate” was released 9th July 2015.   The main changes are: Improvements on security: inventories are now signed and sent over HTTPS, a basic SELinux policy is now provided New features in the API: compliance, rule and group categories, complex queries on nodes Some UI improvements: compliance of each Node in Nodes list, […] Read more

Rudder 3.0 – A major step forward

Hello folks, 2015 starts with a lot of new promising changes for Rudder! After all the polishing work we did to Release Rudder 2.11, we decided that the next Rudder version would have a lot of new features and improvements. With a list of feature that long, we decided that the next version will be […] Read more

Just enough bootstrap for your configuration management agent with cloud-init

Infrastructure automation tools like Rudder, SaltStack, Chef, Puppet or CFEngine can manage your system from top to bottom – once they are installed on it. The typical chicken and egg problem occurs when deploying such a tool – how do you bootstrap it? Each managed node needs to have an agent installed and configured on […] Read more


I use Twitter every day for personal and professional purposes, to stay informed about a broad range of subjects (going from highly technical topics to announcements about the next season of my little pony). I also do not want to keep an eye permanently on my web browser to check for tweets, and enjoy using […] Read more

Dec, 04, 2014



Using Mosh

Let’s take a simple situation: you are on a slow and / or unreliable access to the Internet, for example a tethering access on your mobile phone while on a train. You have received an urgent monitoring mail that says a machine from your IT infrastructure requires immediate attention. This is it: you know you […] Read more

Oct, 23, 2014



Manage Jenkins with ncf

Jenkins is an excellent application to automatically build/test software projects. We rely on it in Normation to build, test and package Rudder and ncf, for all the OSes and versions we support; resulting in a lot of jobs to manage (currently over 300). Part of Jenkins’ awesomeness is that it has a neat REST API, […] Read more

Why true open source is a game changer in IT infrastructure automation

Open source software is the rule in IT infrastructure automation. But what business models do companies like us apply, and how do these affect product decisions and open source users? The so called “open core” model is common, but we believe it introduces schizophrenia, as Chef just announced they do too. This post will explain […] Read more

CFEngine vs Puppet vs Chef vs Ansible vs Salt

Last month Infoworld published an article titled “Review: Puppet vs. Chef vs. Ansible vs. Salt” written by Paul Venezia, that prompted many people in the configuration management community to get in touch with us to ask why CFEngine was not included. Our answer was simple: “No, we have no clear reason as to why this […] Read more

Vagrant: Virtual machine provisioning made easy

During Devops Days Paris 2013 earlier this year (18/19 April 2013) I was surprised to discover that very few people had heard of Vagrant. Luckily; there was an open space dedicated to Vagrant (and its usage) where 15-20 people attended but only 5 among them knew about Vagrant (including my colleague, François Armand and myself). This tools […] Read more

Speed up your CFEngine by using a RAM disk!

When using CFEngine on a daily basis with a heavy set of promises, it is possible that one day you will encounter the following problem, especially on older releases of CFEngine: the underlying databases can get slow over time and eat some I/O. On a “standard” machine it will not cause any harm, but on […] Read more

Avoid CFEngine hanging on start with the ignore_interfaces.rx file

Using CFEngine on a regular basis (and training people to use it), I often have to deploy CFEngine agents on virtual machines. Trouble is that often virtual machines (especially the ones cloned a bit hastily) have broken network configurations (incorrect hosts file, stray network interfaces …). While CFEngine is quite tolerant about network failures, it […] Read more

Feedback on the LOADays 2013 – Small but powerful

For the second year, Normation was present at the LOADays in Antwerp, Belgium, as I went there to do a talk about Cobbler, discover some new interesting projects and enjoy the awesome social event of the first day (and Belgian beer) ! This post will expose my feedback on this conference, what I saw there […] Read more

Jul, 02, 2013



Rudder 2.4.0~beta3 available!

We are very proud to announce the availability of a brand new version of Rudder, 2.4.0~beta3. This is the first official release in the 2.4 series, code-named Drakkar. This beta version has been a long time in the making, and I’d like to apologize to those who have been waiting for it. Your wait has […] Read more

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