DevOps for Beginners

DevOps for Beginners

IT World loves buzzwords, the most recent one that you could hear and see more often is DevOps. What is it, and why is there so much hype around it in the IT community?

IT World loves buzzwords, the most recent one that you could hear and see more often is DevOps. What is it, and why is there so much hype around it in the IT community?

DevOps is Huge and Growing Fast

The DevOps market is expected to grow up from $3.42 Billion in 2018 to $10.31 Billion by 2023. It gives us some idea that this is something growing up amazingly fast — 3 times in 5 years, quite impressive. But what illustrates the interest of the industry much better is — 149,941 job listings in LinkedIn returned from ‘DevOps’ job search Worldwide and the fact that in average, DevOps Engineer in the U.S. makes $100K and above.

Let us find out what is so attractive in this mysterious six-letter word.

What is the purpose of DevOps?

The term DevOps consists of two parts — it comes from a combination of Development _and _IT. Operations. It is a set of modern practices and tools used in Software Development. Its main goal is to help organisations to increase speed in the delivery of applications and services with high-quality standards to satisfy their customers’ needs. Basically, this is the goal of any business — to grow by attracting more customers which is only possible if you deliver results better and faster than your competitors.

There are a few questions you might be thinking already. How exactly can DevOps help in achieving this goal? Why is it considered a game-changer?

How did we live without DevOps before?

First, let us remember how software development was done in the past. In the good old days, when computers where large — every server was a single piece of hardware that used to perform some predefined set of instructions, Mostly considered as “Program”. The number of programs and servers were quite a few. There were people whose job was to develop programs for these machines — “The Developers”, and there were people who used to maintain, service and operate Backend Servers, Operating Systems, Databases etc. — “The System Administrators” (or IT. Operations). These two roles did not have much of the intersection of skillset, and their tasks were pretty much isolated from each other. Systems or Software development lifecycle (SDLC)was quite long, and before some program could be deployed to the production server, it could take weeks or even months. Each change or code fix had to go through a long, tedious and mostly manual process which was prone to delays and human errors.

This classic SDLC process consists of the following stages:

Analysis → Design → Development → Testing → Deployment → Maintenance.

This approach still works fine in many companies; it is well known; it has its own project management methodologies and approaches and is not going to disappear any time soon.

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