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Bulb lab

For quite some time, I’ve been using a lab based on 1U rackable servers, it was ok but far from perfect. First of all, it consume a fair share of power, generate lots of heat, so it’s really really noisy. Maximum amount of RAM is also an issue with only 16GB supported. So beginning of this year I started the buildout of a new lab with the objective of reducing noise level to around 40 dB, support up to 64 GB RAM per node and simplify things even further by using VMware distributed storage (vSAN) technology. So let me introduce to my newly built Bulb Lab.


Bulb lab

ISC DHCP server deployment with Ansible

Over the last few weeks I built a new home lab based on the Supermicro A1SAi–2750F motherboard. Instead of manually configuring the required infrastructure services like DNS, NTP, OpenVPN and DHCP, I’m using Ansible to do all of it, in an easy and repeatable fashion. As a reminder Ansible is a YAML based configuration management tool, it’s agentless, use SSH as a communication medium. It’s simple and efficient. Read our intro article for more details. In this article I’ll details how to install a ISC DHCP server using Ansible. ISC DHCP is production-grade software that offers a complete solution for implementing DHCP servers, relay agents, and clients for small local networks to large enterprises.

NSX vSphere troubleshooting

Last week we reviewed all the tips & tricks to troubleshoot Open vSwitch and OpenStack Neutron. NSX vSphere (NSX-v) is a different beast, mostly because it leverage VMware Distributed Switch (VDS) instead of Open vSwitch. As a cheatsheet, I’m gathering all the CLI to troubleshoot it over here, for easy cut & past, some commands are damn long. But wait don’t forget the tab completion on our NSX CLI, it’s pretty nice ;) But you have to know where to start, hope this helps.

VMware NSX 4.x on RHEL OpenStack Platform 5.0

Redhat announced a month ago OpenStack Platform 5.0 which officially support VMware NSX 6.0 and vSphere 5.5. In our lab today, we’ll deploy this OpenStack distribution and connect it to NSX and vSphere to see how easy it is and if everything works as expected. By the way it’s not, so beware, this article is just a preview of what’s coming. If you want to reproduce the same setup, you’ll have to wait until VMware officially support RedHat 7.0. This article will be updated accordingly when it will be publicly available.

Byobu

Summer is a great period to find ways to improve your workflow a bit. One great little tool in this category is Byobu from Dustin Kirkland, it’s a light, text-based window manager which allow you to detach/reattach to session and quickly create and move between different windows over a single SSH connection. It improve on the idea of previous tools like Tmux or GNU Screen but with a simpler approach.

Cheat

I’ve been playing with cheatsheets for years, it all started when I studied mathematics. I still have few booklets back from university. I love cheatsheet to tell you the truth, the one thing I love the most is to reduce as much as possible the paper estate taken by information. I have the impression to memorize everything easily when I shrink it. Computers have changed that radically, back when the first programmable calculators appeared on the market, the first digital cheatsheet appeared. It was the beginning of a long story which bring us today to Cheat . A small Python command line program that will be on your side when for god sake you completely forgot the options to block a port using iptables or how to quickly share a file thru HTTP using Python, etc…

Ansible

Ansible seems to be the simplest tool to centrally manage systems of any kind, Docker containers, AWS, Google Compute, Rackspace, OpenStack instances, VMware VMs, etc… There isn’t any dependencies on the managed system apart from Python 2.6. Ansible isn’t using any database or daemon and won’t install anything on the managed system, all operations are executed using SSH.

In this article, I’ll details how to install it will introduce the main concepts and terminologies. You’ll then understand why companies like Evernote, Twitter, Nasa, Rackspace or Atlassian are all using this Configuration Management, deployment and orchestration tool Compared to other solutions like Chef, Puppet or SaltStack, Ansible is designed to be minimal in nature with low learning curve.

Last but not least, Ansible seems to be inspired by Ursula K. Le Guin communication device capable of instantaneous or superluminal communication.

VMware NSX 4.0 - components intallation and KVM lab

In this article we will review all the steps required to deploy NSX 4.0 a Network Virtualisation offering from VMware. We will nest this lab within an OpenStack cloud but you can run the lab anywhere else where you can launch VMs, including vSphere, Virtual Box or VMware Fusion.

chruby on Mac OS X

Ruby is an important tool to have around, Mac OS X already comes bundled with it, but sometimes you need a different version. Mavericks now comes with Ruby 2.0.0-p195, any previous ones comes with 1.8.7 which is very close to end of life. There are lots of alternative to install multiple version of Ruby on your workstation, rvm or rbenv works well for this job but Postmodern have another angle to this problem. Quite similar to the Arch Linux Kiss (Keep It Simple, Stupid) philosophy, chruby is a deadly simple tool to do just that by updating the environment variables: $RUBY_ROOT, $RUBY_ENGINE, $RUBY_VERSION, $GEM_ROOT, $GEM_HOME, $GEM_PATH and $RUBYOPT in just 90 lines of codes. Let’s details how you can install it on your Mac.

Chef for OpenStack

Matt Ray is the community manager of a project at Chef (formerly Opscode) to unify all efforts around building up Chef Cookbooks for OpenStack deployment. For quite some time lots of people were forking the repository from Rackspace, it created a lot of fragmentation, so Matt is now gathering all around the StackForge repository where everyone can contribute. AT&T, Dell, Dreamhost, Gap, HP, HubSpot, IBM, Korea Telecom, Rackspace, SUSE amongst others are already contributing to this project. In this article we will detail how you can use them to deploy OpenStack on your environment.

Deploying Ceph using Crowbar 2.0

For quite some time now the Crowbar team have been refactoring their cloud unboxer solution. It is is not yet ready for public consumption, but if you want to see what they’ve got, it’s already possible. Victor Lowther have just released the first CB20 compatible workload which is Ceph, a distributed storage solution from Inktank. This article will build up on the previous one which details the process of building a Crowbar ISO, let see how it differs if you want to see the latest and greatest of Crowbar 2.0. If you really don’t know what we are talking about, just start from the beginning.

Building your own Crowbar ISO for OpenStack Havana

Crowbar, a great cloud unboxer, is currently evolving at a rapid pace, if you want to see the latest and greatest thing without waiting any longer, you can build your own Crowbar ISO. In this article we’ll show you how to do just that using the Roxy branch which is supposed to support OpenStack Havanna. We will suppose you aren’t planning to contribute to the code, so we won’t use our any personalized Git repository. If you don’t know what’s Crowbar, it’s platform for server provisioning and deployment from bare metal. But if you want to see how it could be used to deploy OpenStack, read our previous article.

Opscode Chef 101

Chef is an outstanding Ruby based configuration management system. It’s main reason for existance is to automate your infrastructure. It will help you bring your application to life, including all the dependencies like web and app servers, load balancers, dns, ntp, just to name a few. You’ll find hundreds of pre-built cookbooks on the Community web site. If you want to learn Chef the best starting point is the LearnChef web site. Today, we will show you how to quickly setup a Chef infrastructure easily step by step.

Anatomy of a Barclamp

As detailled in the official Crowbar glossary, a barclamp is a set of data, templates and other necessary logic for applying a particular role to a node, or to some set of nodes. Interesting description isn’t it. Let’s dig in the anatomy of a barclamp.

OpenStack French Meetup #4

Fourth OpenStack meetup in Paris with a fully booked amphitheater at Epita, amazing growth of the french community. As a reminder, the first meetup happened June 10, 2013 with only 18 participants.

Deploying OpenStack Grizzly using Fuel 3.0

If you tried to deploy OpenStack by yourself there a huge probability it failed and you may have given up after multiple unsuccessful tries. Some Linux distribution like Redhat or Suse are packaging everything for you to make things easy but today we’ll look at another alternative from Mirantis a company that just got a new round of financing from Redhat, SAP Ventures and Ericsson. This company offers an easy way to build up an OpenStack cloud environment, Fuel 3.0.

VMware Infrastructure Navigator-2.0

VMware Infrastructure Navigator is a component of vCenter Operations Suite, it’s an application awareness plug-in to the vCenter Server that provides continuous dependency mapping of applications. Infrastructure Navigator offers application context to the virtual infrastructure administrators to monitor and manage the virtual infrastructure inventory objects and actions. Administrators can use Infrastructure Navigator to understand the impact of the change on the virtual environment in their application infrastructure. This article is a condensed howto about installing and configuring VIN version 5.6, released November 29, 2012.

Nicira + Opscode Chef: The Journey to an OpenStack Cloud

Nicira and OpsCode partnered to build an OpenStack cloud at VMware. In this webinar we’ll have the opportunity to get some insight about it. It allows their team to build location independant labs in 50 seconds, provisionned from a self service portal. Principal driver: cost, agility and speed.

VMware Single Sign-On and vCenter 5.1 Deployment Deep Dive

When VMware released version 5.1 of their cloud infrastructure suite namely vCloud Suite, end of August 2012, vCenter 5.1 integrated an advanced Single Sign-On mechanism to easily login to most components of the suite, let’s review the technical background involved. Justin King is part of VMware technical marketing team, he presented the latest innovations with a particular focus on SSO.

Building out Storage as a Service with OpenStack Cloud

Greg Elkinbard built on demand IaaS and PaaS layer at Mirantis customer, he has 20 years of experience and is Senior Technical Director at Mirantis. Today he is comparing storage technologies in the context of delivering a storage as a service offering. He was assisted by David Fishman in charge of Marketing at Mirantis. Let’s dive-in.

Suse Cloud conference - part 1

Julien Niedergang, is a pre-sales SUSE engineer, curious about OpenStack, he presented SUSE strategy and solutions based on Crowbar, Chef and OpenStack.

Google Tech Talk - Testing at Google

Google regularly invites students and professional to Tech Talk sessions, this time I was invited in their Paris office for a talk about Testing at Google. This is one of the first Tech Talk organized in Paris.

Oh My Zsh!

It’s for sure not the first or the last cooking article about Oh My Zsh!, but if you don’t know it, just try it, you’ll understand why so much people are blogging about it. So let’s start by the official description. It’s a community-driven framework initiated by Robby Russel for managing your zsh configuration. It includes 40+ optional plugins (rails, git,OSX, hub, capistrano, brew, ant, macports, etc), over 80 terminal themes to spice up your morning, and an auto-update tool so that makes it easy to keep up with the latest updates from the community. Looks great isn’t it ? So let’s digging it !

vCops-5.6

vCenter Operations Management Suite is a solution to easily get an high level overview of the Health, Risk and Efficience of a virtual datacenter. This latest release integrates with VMware Infrastructure Navigator which will give you an insight of all the applications deployed within your VMs as well as their inter-dependencies. vCops now also integrates with vCenter Configuration Manager with a fourth supermetric called Compliance. This is a condensed howto about installing and configuring vCops version 5.6, released November 29, 2012.

Electric Cloud and Opscode Chef: The PB&J of DevOps Webminar

Today’s enterprises are adopting methodologies like DevOps and Continuous Delivery to rapidly deliver applications to customers. Continuously building, testing and releasing applications improves the quality of the applications by providing fast user feedback to development teams; rapid release cycles also ensure tighter collaboration between Dev and Ops teams.

haml

Haml (HTML abstraction markup language) is based on one primary principle: markup should be beautiful. It’s not just beauty for beauty’s sake either; Haml accelerates and simplifies template creation down to veritable haiku. Here is how Haml markup is presented on the inventor site, in this article we’ll give you the basis to start using it instead of Erb for your next web project.

nanoc

nanoc is a tool that runs on your local computer and compiles documents written in formats such as Markdown, Textile, Haml,… into a static web site consisting of simple HTML files, ready for uploading to any web server.

Crowbar

Crowbar is an Open Source solution to quickly provision new services from bare metal servers.

Ceph Workshop

I’ve attended the first Ceph Workshop in Amsterdam, Nov 2, 2012, with all the Ceph gurus, Sage Weil, Wildo den Hollander, Ross Turk, Gregory Farnum presenting this outstanding distributed storage technology. I’m sharing with you my notes.

Git

Git is the corner piece of development. This article is my git memo.