Packer is one of the tools I’ve used in the past to build VirtualBox boxes. You can find what I’ve done on my GitHub account. For Smash project, I wanted to make a packer configuration to manage Docker and VirtualBox. I also wanted to call Ansible to build specific images for each needs. The goal is to be able to build cloud image ready to start, without any special dependencies. This because I need different usages:

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As you may know, I’m using Vagrant for more than a year now with VirtualBox. Docker is a faster alternative that needs to be taken into consideration. Having the possibility to manage both of them with the same tool can be very interesting. For information, I mainly use it with VirtualBox because it’s any platform compatible and Docker because it’s perfect for a CI like Jenkins. I recently talked about my implication into the Smash project.

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Fig is a fast, isolated development environments using Docker. For some features, it can be compared to Vagrant where the Dockerfike is not enough powerful to build multiple instances. For example, let’s say you want to test a new product version of a software like MediaWiki and you want to build the complete stack. So you may need to have several tools categories (depending of the usage): Web: Nginx, PHP-FPM, Varnish App Cahing: Redis Search: ElasticSearch In Vagrant you can natively build 3 VM and interconnect them without the need of additional tool.

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I really like this kind of news, new versions of docker and RedHat: Docker 1.0: this is the first stable version after more than one year of development. This version is production ready and I will start using it asap. RedHat 7: this is a good news as the version 6 started to be a little bit old now. What’s new? MariaDB replace MySQL \o/ Docker integrated systemd XFS by default Kernel 3.

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Luc (@lstep) informed me about an interesting software that looks like Juju at first and I wanted to share it with you. It’s called Gaudi. If you already use Docker to setup your dev box for large applications, don’t you suffer to maintain complex Dockerfiles? Splitting a service Oriented Architecture into several Docker containers is the solution, except managing links and mounts between them is a pain. gaudi solves that by offering a way to describe a system of Docker containers using a simple DSL.

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> CoreOS is a new Linux distribution that has been rearchitected to provide features needed to run modern infrastructure stacks. The strategies and architectures that influence CoreOS allow companies like Google, Facebook and Twitter to run their services at scale with high resilience. We’ve implemented them correctly so you don’t have to endure the slow, learn-as-you-go infrastructure building process. > > CoreOS can run on your existing hardware or on most cloud providers.

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I’ve heard of Docker a year ago, started to play with it for some months and really start using it a few days ago. At first, I thought it was more complex than expected and finally I saw how simple it is and how many time I’ve lost because I didn’t used it. Docker is an open-source engine that automates the deployment of any application as a lightweight, portable, self-sufficient container that will run virtually anywhere.

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Pierre Mavro / Deimosfr


BirdSight Co-Founder and CTO  •  Staff SRE Lead at Criteo

Paris - France