Qemu Config Drive

posted last year by Ben Cordero.

Recently, I've been working on ways to create OpenStack ready cloud images. While I do have acess to a local instance of OpenStack, sometimes it becomes necessary to test the images on a local machine to fine tune the boot process.

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Why I am not a Fan

posted last year by Ben Cordero.

Flannel, Weave, Pipework, libnetwork, docknet and now The Fan. Why are we so allergic to large address spaces?

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Plan9 Passthrough

posted last year by Ben Cordero.

There's a cool trick where you can efficiently share a filesystem with a VM. Until Linux Containers beef up their security from first principals, hardware emulation is one of the stronger methods of locking down and isolating services.

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Rolling Release

posted last year by Ben Cordero.

This blog post is my reply to a recent blog post about rolling releases. I'm firmly in the Gentoo camp. For me, it's about knowledge and control over how my machines are setup and configured, with an emphasis on safety.

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Parallella vs the Pi

posted last year by Ben Cordero.

I've been playing with a parallella board. Here are my first impressions of what is hoped to be the future direction of massively parallel computing.

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Changes

posted 2 years ago by Ben Cordero.

I really shouldn't be let near web development. Having said that, I've been spending more time writing and re-writing blog, rather than writing the blog posts themselves.

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Homemade Hypervisor

posted 2 years ago by Ben Cordero.

I haven't posted in a little while, so here's a nice juicy tutorial that I've been working on. There's some more news surrounding this, but I think that I'll start off with a Homemade Hypervisor for you to sink into.

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XENBUS: Waiting for devices to initialise

posted 2 years ago by Ben Cordero.

You forgot to load xen backend modules. Guest domains will boot, but
are waiting for the host (dom0) to provide device implementations.

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Asynchronous part 3

posted 2 years ago by Ben Cordero.

Python 3.4 is out today! So here is the third and final part in my series about some of the new shiny that comes with. The end goal is to be able to write non-blocking code without changing our synchronous habits. I'll start with a simple TCP server that listens for connections and spits out whatever is received. This should be familiar to anyone who is new to socket programming.

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Asynchronous part 2

posted 2 years ago by Ben Cordero.

In my last post, I showed the basics of the new asyncio module brings to python programming. What a coroutine is, how to run them and getting the results back in ways that should be readable by most python programmers. The routines are quick examples how to get started, and hopefully can be used to eliminate some of the waiting that io-bound programs have.

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