DevOps is scary stuff for us pure Ops folks that thought they left coding behind a long, long time ago. Most of us Ops people can hack out some basic (or maybe even advanced) shell scripts in Perl, ksh, bash, csh, etc… But the term DevOps alone makes me cringe and think I might really need to know how to write code for real (which I don’t enjoy -- that’s why I’m an ops guy in the first place).
So here’s my plan. I’m going to do a bunch of research, play with relevant tools (what fun is IT without tools?), and document everything I discover here in a series of blog posts. My goal is to educate myself and others so that we operations types can get more comfortable with DevOps. By breaking down this concept and figuring out what it really means, hopefully we can figure out how to transition pure Ops guys into this new IT management paradigm.
What is DevOps?
Here we go, I’m probably about to open up Pandora's Box by trying to define what DevOps means but to me that is the foundation of everything else I will discuss in this series. I started my research by asking Google “what is devops”. Naturally, Wikipedia was the first result so that is where we will begin. The first sentence on Wikipedia defines DevOps as “a software development method that stresses communication, collaboration and integration between software developers and information technology (IT) professionals.” Hmmm… This is not a great start for us Ops folks who don’t really want anything to do with programming.
Reading further on down the page I see something more interesting to me … “The goal is to automate as much as possible different operational processes.” Now that is an idea I can stand behind. I have always been a fan of automating whatever repetitive processes that I can (usually by way of shell scripts).
My next stop on this DevOps train lead me to a very interesting blog post by the folks at the agile admin. In it they discuss the definition and history of DevOps. Here are some of the nuggets that were of particular interest to me:
- “Effectively, you can define DevOps as system administrators participating in an agile development process alongside developers and using many of the same agile techniques for their systems work.”
- “It’s a misconception that DevOps is coming from the development side of the house – DevOps, and its antecedents in agile operations, are largely being initiated out of operations teams.”
- “The point is that all the participants in creating a product or system should collaborate from the beginning – business folks of various stripes, developers of various stripes, and operations folks of various stripes, and all this includes security, network, and whoever else.”
Wow, that’s a lot more comforting to my fragile psyche. The idea that DevOps is being largely initiated out of the operations side of the house makes me feel like I misunderstood the whole concept right from the start.
For even more perspective I read a great article on O’Reilly Radar from Mike Loukides. In it he explains the origins of dev and ops and shows how operations has been changing over the years to include much more automation of tasks and configurations. He also explains how there is no expectation of all knowing developer/operations super humans but instead that operations staff needs to work closely or even be in the same group as the development team.
When it comes right down to it there are developers and there are operations staff. The two groups have worked too far apart for far too long. The DevOps movement is an attempt to bring these worlds together so that they can achieve the effectiveness and efficiency that the business deserves. I really do feel a lot better about DevOps now that I have done more research into the basic meaning and I hope this helps some of you who were feeling intimidated like I was. In my next post I plan to break down common operations tasks and talk about the tools that are available to help automate those tasks and their associated processes.
As always, please feel free to comment if you think I have missed something or if you have a request for content in an upcoming post.