DevOps Fundamentals

DevOps Fundamental, Learn why & what is DevOps?

Hello friends, In this blog I will be telling you about fundamentals of DevOps. As we know DevOps is high in demand in current job market and learning this technology can help you in multiple ways in your career. So today I brought to you this awesome article on DevOps fundamental. 

After reading this complete blog on DevOps fundamental, you will be able to answer to the following :

• What is DevOps?
• Why DevOps?
• How DevOps is changing complete software development and
  operations?

"Click here for roadmap to become an DevOps engineer. 

So lets start!!!

What is DevOps and how it works?

DevOps is an approach through which quality software can be delivered quickly and reliably.

Its a methodology that allows a single team to manage the entire software development and deployment lifecycle that is development, testing, operations, monitoring.

A DevOps team includes developers and IT operations working collaboratively throughout the software lifecycle development & operations, in order to amplify the speed and quality of software deployment. It’s a new way of IT software management & delivery, a cultural shift, that has significant implications for teams and the organizations they work for.

Under a DevOps model, development and operations teams works in combined environment where the engineers work across the entire application lifecycle — from development and test to deployment and operations.

DevOps methodology comes with set of so many tools that is used by DevOps teams to automate and accelerate processes, which helps to increase reliability. A DevOps toolchain helps teams tackle important DevOps fundamentals including continuous integration, continuous delivery, automation, and collaboration.

In DevOps everything is continuous, continuous development, continuous testing, continuous integration and continuous delivery.

DevOps comprises of a term i.e. CI/CD which is nothing but Continuous Integration Continuous Delivery.

Continuous Integration & Continuous Delivery :

Whenever developer develops new code it pushed to some version control system repositories and these codes will be pulled by integration tool and then built, Integrated for testing. In case of any defect found or in case of any new addition of  functionality, developer will be notified and again developer will rectify/create the code and pushes to the repository and then again it pulled by integration tool pulled for integration and testing. This complete cycle is known as continuous integration.

                    After successful integration and unit testing, the entire integrated application will be deployed to the test server by using configuration management tools where all the functionality will be tested thoroughly and this cycle is keep on going until and unless the desired application is ready and live in production.

DevOps symbol and how this symbol is formed?

The above DevOps logo formed by combining software development and operations part work together in a cycle. Since it’s an automated continuous process the logo looks like symbol of infinity means never ending.

DevOps Stages

Why DevOps is evolved so rapidly in IT corporates in recent days?

Before DevOps there were other traditional methodology used for SDLC (Software development lifecycle) like waterfall model that served IT organizations over a long period, but these SDLC models  had numerous disadvantages. To overcome some of these disadvantages Agile methodology came into the picture which did a pretty good job in software development area, but still there was some room of improvement which DevOps has fulfilled with help of its automation tools and change in SDLC culture.

Below are few points to demonstrate why DevOps is popular among IT companies these days.

Traditional SDLC	DevOps Culture
Time taking due to lack of collaboration between Dev & Ops team	Team works collaboratively so S/W delivery is fast.
Complete software to be developed at once by predicting some features leads to extra code.	Frequent releases and continuous integration based on feedback.
No automation or automation tools.	Adapted to automation and lots of automation tools available
Environment differences between dev team and ops team leads to conflicts.	With support of tools team can work on same environment.
Gap between teams.	Reduces gap between teams.

CI CD detailed explanation

Continuous Integration & Continuous delivery  is  a coding practice that allows a team to deliver ready to deploy code

               In CI/CD every phase of software development lifecycle is continuously in frequent manner. For example, once developer has written the code and pushed to repository it will be pull immediately by integration tool and sent for build, after successful build unit testing will be done for the code then it will be integrated with previous part of software code and sent to the integration testing then finally if everything is perfect it sent for ready to production deploy environment to test.

In case on any bug found in any phase of the this lifecycle the continuous feedback will be sent to developer immediately then developer will fix the code and again all the above cycle will start. This cycle happens continuously, so there is no time gap in this methodology and a fine perfect software can be delivered to customer early and continuously.

In this blog you have learnt about fundamentals of DevOps and its significance. That's all for today!!!

Visit to the link for more on devops and how to become DevOps engineer roadmap!!!

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