Scott's Weblog The weblog of an IT pro specializing in virtualization, networking, open source, and cloud computing

Technology Short Take #30

Welcome to Technology Short Take #30. This Technology Short Take is a bit heavy on the networking side, but I suppose that’s understandable given my recent job change. Enjoy!

(Read more...)

Automating Open vSwitch Configuration with Puppet

In this post, I’m going to show you a way to automate the configuration of Open vSwitch (OVS) using Puppet. While this method will work, it is not without its drawbacks (which I’ll explain later in the post). I freely admit that there might be better ways of accomplishing this task; this is one simple way that I discovered.

(Read more...)

Life at VMware, Two Weeks In

Today marks my “two week anniversary” in my new role at VMware. So far, it’s been everything that I thought it would be—exciting, but also challenging.

(Read more...)

Modifying Virtual User Resources in Puppet

In an earlier post on using Puppet to manage user accounts, I showed how I was using virtual user resources to manage user accounts on Puppet-managed nodes. Today, I ran into a situation where I wanted one of these virtual user resources to have a different group membership on one class of nodes than on another class of nodes. In this post, I’ll show you how I managed to modify the group membership of a realized virtual user resource.

(Read more...)

Exploring RHEL-OVS Integrations

In this post, I’m going to explore some integrations between Red Hat Enterprise Linux (RHEL)/RHEL variants and Open vSwitch (OVS). This post will lay the foundation for a future post describing OVS automation using Puppet.

(Read more...)

Looking Ahead: My 2013 Projects

In early January 2012, I posted a list of my 2012 projects. Those projects included learning to script in Perl, learning German, becoming more familiar with Xen/Open vSwitch/OpenStack, and pursuing CCNP. In late June 2012, my mid-year project update let you know that I was dropping the Perl efforts, but sticking it out with German, Xen/OVS/OpenStack, and CCNP. (I later dropped Xen in favor of KVM.) Finally, in early January 2013 I graded myself on my progress on my 2012 goals. In this post, I’d like to take lessons learned from my 2012 projects and apply them toward my list of 2013 projects.

(Read more...)

Technology Short Take #29

Welcome to Technology Short Take #29! This is another installation in my irregularly-published series of links, thoughts, rants, and raves across various data center-related fields of technology. As always, I hope you find something useful here.

(Read more...)

Puppet, User Accounts, and Configuration Files

A short while ago I posted an article that described how to use Puppet for account management. In that article, I showed you how to use virtual user resources to manage user accounts on Puppet-managed systems. In this post, I’m going to expand on that configuration so that we can also manage the initial account configuration files, and do so in the proper order.

(Read more...)

New Year, New Challenges, New Opportunities

I suppose there’s no sense in beating around the bush. As the blog post title indicates, I’m taking on a new set of challenges (and a new set of opportunities) in 2013–and the way to do that is in a new role with a new company. So, effective 2/8/2013, I am leaving EMC Corporation to join the former Nicira group at VMware, working directly for Martin Casado. I’ll be working with folks like Brad Hedlund (see his announcement here), Bruce Davie, and Teemu Koponen. I’m truly awed by the talent on this team.

(Read more...)

How I Build the Technology Short Takes

Shortly after I published Technology Short Take #27, a reader asked me on Twitter how I managed the information that goes into each Technology Short Take (TST) article. Although I’ve blogged about my productivity setup before, that post is now over two years old and horribly out of date. Given that I need to post a more current description of my tools and workflow, I thought I’d take a brief moment to answer the reader’s question. Here’s how I go about building the Technology Short Take articles.

(Read more...)