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Keeping VirtualBox Guest Additions in sync with Vagrant

Whenever you’re upgrading the software packages on your VirtualBox machine, managed by Vagrant, you risk VirtualBox Guest Additions render unusable and thus your shared folders don’t work anymore. This usually happens whenever a kernel upgrade is being done which requires the VirtualBox drivers to be recompiled.

Thanks to a Vagrant plugin called vbguest you can now safely upgrade your software packages. If you’ve got this plugin installed every time you run vagrant up it’ll check the installed version of VirtualBox Guest Additions and updates it accordingly.

To install the plugin run the following command from your shell:

$ vagrant plugin install vagrant-vbguest

Server provisioning: my experience with Puppet and Chef

Server provisioning tools such as Chef and Puppet make it easy to automate installation and configuration of your servers. I’ve used both now in two projects where they provisioned my virtual servers built with Vagrant.

I’ve first heard of Chef and Puppet when I started using Vagrant. With Vagrant you can quickly get a virtual server up and running for your project. In its most basic form Vagrant can execute a shell script in which you setup your server. Because this is a bit limiting it’s interesting to look into a more automated provisioning process.

Just over a year ago I started using Vagrant for Maximus and after giving both Chef and Puppet a quick review I decided to go with Puppet. At the time I thought it looked easier to use and it had lots of modules available for installing software.

Earlier this week I decided to add Vagrant to a new project of mine: a small and simple CRM system which is adapted to my workflow, and decided to give Chef (Solo) a try. At first Chef looked like a lot more hassle than Puppet, but that’s mainly because you start off with a big chef directory just to get started and cookbooks have a folder hierarchy of their own as well. In contrast, with Puppet modules basically have a files, manifests and templates directory.

If I compare my experience between Puppet and Chef I had more trouble setting up my Puppet manifests than I did setting up my Chef cookbooks and recipes. I’ve found Chef cookbooks easier to use than Puppet modules. Mainly because configuring software with Chef seemed a lot easier. Maybe that’s because the available Chef cookbooks actually provide this functionality as it seemed totally absent in most Puppet modules I’ve come across. Maybe it was there but I couldn’t find it. That’s another thing, the Chef cookbooks seem to be better documented than the Puppet modules I’ve seen. One thing I do like about Puppet is that you can define dependencies between every step or command you want to run. I’m not sure if Chef supports this as well.

Just to make clear, my experience with Puppet and Chef is limited and I currently don’t use it to provision servers used in production (at least not yet, but I’m sure that’ll change in the future). This is just based on my experience. If you’re interested in these tools I suggest you try them both to see what it’s all about. They both have a solo/standalone version which doesn’t require a main server where your cookbooks or modules are stored.

One great resource of getting started with Chef can be found at Christopher H. Laco’s website.