OpenStack Swift Ring made understandable

When people talk about OpenStack Swift, we often hear the word Ring. This is because the Ring is a central piece in how Swift is working. But what is this thing everyone's talking about ?

The Ring refers to 3 files that are shared among every Swift nodes (storage and proxy …

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Right VM cost

With cloud Virtual Machines prices dropping month after month, we may be asking if the margins previously done by cloud operators were not outrageously high. I actually find surprising that current VM price is on average higher than equivalent dedicated server even though virtualization allows sharing more hardware.

Comparing dedicated …

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Git SSH Docker container

My favorite option to backup and version my code and text files is using git with a remote repository. The implementation I have chosen for that consists in running an ssh server, with git, in a Docker container. This has the following advantages over other solutions:

  • 100% reproducible;
  • Limits access …
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Securing Data

As a data geek, I've been wondering how I could protect my data from the main threats (if possible by using only open source software). For instance, losing data because of a hardware failure is just something that shouldn't happen anymore, thanks to all the technology available today. One could …

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Windows Images for OpenStack

This note summarizes articles from other places about Microsoft Windows images for OpenStack creation, along with some first hand experience. The whole process of creating Windows 2008 and Windows 2012 images fully usable on OpenStack instances is described there.

Prerequisite

To achieve the creation of a qcow2 Windows image for …

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