Here is an example shared configuration for knife, the command and control utility which ships with Opscode Chef. You can drop this off in your chef-repo/.chef/ directory, and multiple developers can use the same knife configuration to interact with more than one Chef server, or the Opscode platform.
By using Bash functions and environment variables we can change the chef server, which knife is configured to use, on the fly.
According to Wikipedia, Vertical synchronization (or VerticalSync) is
an option in most systems, wherein the video card is prevented from doing anything visible to the
display memory until after the monitor finishes its current refresh cycle.
In layman’s terms, when Vertical synchronization is turned on, many aspects of video processing are locked to the reported refresh rate of your display hardware. In other words, if your fancy LCD screen reports 60 Hz. is its own supported refresh rate, then games or video playback will be capped at 60 frames per second when Vertical synchronization is turned on.
Since the first week of this last November, the closed Linux Steam beta has been underway. I think the latest official count of Linux beta users is somewhere near 80,000 gamers. That is a pretty impressive closed beta headcount considering that is more than 1% of the active 5 million users who use Steam daily. It is really an exciting time for all the Linux desktop users. As the introduction of Steam has encouraged GPU OEMs to improve their Linux video drivers. Also, some of the game developers participating in the Linux beta have been supporting their customers and fixing bugs, even for those not officially included in the closed beta program.
When I am not writing Opschef cookbooks, I do enjoy real cooking in my spare time. I have been down and out with a bit of a cold for the last week. With it getting colder outside and with me feeling a bit better today, I decided to make a big pot of chili.
There is just something about having a big pot stewing and making your house smell homey, like a big pot of soup, which can make you feel better. Capsaicin, the magical stuff which make peppers hot, is thought to break up congestion, to help clear up your sinuses, and helps with the management of pain. So some spicy Chili certainly can’t hurt, especially given the cold I have suffered through this week.
I had such a blast at the inaugural Chefconf in San Francisco, CA. This was my first time visiting the area, I had a chance to visit the Alcatraz prison. I also drank a lot of Anchor Steam, while pair programming with Fletcher Nichol to make the NTP cookbook a reference cookbook for testing Chef recipes.
During my second appearance on the Food Fight show, we covered what we hacked on throughout Chefconf with regard to Travis CI automated testing. We also talked a bit about what we are doing internally with Jenkins to test our cookbook code. Here is the link to the podcast audio and also the show notes.
A simple demonstration using KVM (Kernel-based Virtual Machine) from the command line interface.
Sorry for the slight graphics artefacts, I was testing out some screencast software for the first time.
Watch it on youtube, here.
I was really excited to be part of the first community podcast for Opscode Chef, Food Fight. Here is a link to the podcast audio and also the show notes.
So I'm blowing away, and re-installing, my Steam Bottle on Codeweaver's Crossover games. I was hoping to get some in-game overlay support for the Community/Friends features of Steam. I really really want to hang on to Team Fortress/Left 4 Dead settings though.
Using the find command we can solve this problem fairly easy.
In this installment of my blog, I want to document the proper use of rsync for folks who are tasked with moving a large amount of data. I'll even show you a few things you can do from the command line interface to extend the built-in capability of rsync using a little bash-scripting trickery.
I use rsync to migrate Oracle databases between servers at least a few times per year. In a snap, its one of the easiest ways to clone a database from a Production server to a Pre-Production/Development server or even a Virtual Machine. You don’t have to have a fancy Fibre-Channel or iSCSI storage array attached to both servers, in order to do a data LUN clone, thanks to rsync.
I hope you enjoy this in-depth article. Please feel free to comment: if you need clarification, find it useful, or something I wrote is just plain wrong.