What is DevOps? DevOps Methodology, Principles & Stages Explained

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What is DevOps? DevOps Methodology, Principles & Stages Explained

15 Sep 2021 Admin 0 DevOps

In the early 2000s, in the software development field, there were two different departments: developers and system administrators. System administrators were responsible for deploying and integrating the code written by developers. They rarely communicated with each other.

Fast-forwarding to the 21st century, Agile and continuous workflows are some of the most common software development methods. To meet market demands, brands adopt DevOps approach. It is to simplify software development, deployment, maintenance, and software management at scale.

If you want to get into a DevOps career, then you must go for DevOps Certification Course.

Before that, first know DevOps, its principles, methodology, and the stages involved. Continue your reading to know all essential details about DevOps in depth.

DevOps Methodology

What is DevOps In Simple?

DevOps’ term refers to the combined work of two teams namely software development (including software testing) and operational methods (practices, values, principles, and methods) for high-quality service deliverance.

DevOps encourages good communication and continuous real-time collaboration between different developer workflows and IT operational teams.

The DevOps approach to workflow organization transforms separate development and operational teams into multidisciplinary teams. And so, they become capable of implementing agile planning and practices such as Infrastructure Automation, Continuous Delivery, and Continuous Integration.


Goals Of DevOps

The purpose of adopting DevOps is to achieve the following objectives:

  • Shorter Release Time

  • Better Time-to-Market

  • Increased quality in Delivering software/service

  • Continuous Improvement

  • Secure and Fast Deployment

Most of the above-said goals can be achieved through continuous iteration and feedback from customers, end-users, quality assurance teams, and more.

Benefits Of DevOps

Teams using DevOps culture, practices, and tools work better. In addition, they develop better products faster to increase customer satisfaction. This improved collaboration and productivity is an essential part of achieving the following business goals:

  • Environmental stabilization - It ensures consistency and extends up-time.

  • Shorter development cycle - Manage code requirements and retention.

  • Release Velocity Increased - Continuous build and push-button deployments.

  • Reduced defects - Regimental processes, and automatic tests.

  • Process statistics - Track time, errors, and exceptions at each stage.


Steps Involved In DevOps Lifecycle

Let us see the various steps involved in the DevOps Lifecycle.

  • Code: It is the first step of the DevOps Lifecycle where developers create code irrespective of the platform.

  • Build: Developers create their version of the app in each extension, depending on the language used.

  • Test: For a successful DevOps approach, the testing process must be performed using an automation tool such as Selenium.

  • Release: Development management, scheduling, planning, and build control in various environments before implementation and after testing.

  • Deploy: At this stage, all artifacts or code files are prepared and executed on the server.

  • Operate: The program will run after deployment, and clients will use it in real scenarios.

  • Monitoring: This step helps to provide important information that ensures optimal performance and service uptime.

  • Planning: It collects data from the monitor phase. Based on the feedback, it makes changes for better results.

DevOps Principles

The use of the DevOps methodology in a programming team will revolutionize your company. This will change the way your development team builds and delivers applications. It is based on 6 basic principles:


Automation allows developers to simplify the process and increase team productivity. As automation reduces the number of manual actions, it improves the quality and security of software development.


During iteration, it speeds up the development process with faster end-user feedback. 


Self-service also accelerates permissions, allowing developers to independently deploy applications as needed.

Continuous improvement

Continuous improvement should improve the process and performs post-mortem.

It records each incident, its impact, resolving steps, the reason for the problem, and preventive methods to avoid it from happening in the future.

Continuous testing

Continuous testing ensures higher quality and faster release at the same time.


Finally, a collaboration between developers and operational teams is key to combining efforts and accelerating success.

Different DevOps Stages

The DevOps life cycle is roughly broken down into various DevOps stages as mentioned below. These steps are the basis for a full DevOps implementation.

Continuous Development

It involves the software’s "planning" and "coding." In the planning phase, you define the vision of the project, and the programmers start creating the program code.

DevOps Tools Used: Git, SVN, Mercurial, CVS.

Continuous Integration

This stage works as a core of the complete DevOps lifecycle. This is a practice that requires developers to change the source code more often. It can be daily or weekly.

DevOps Tools Used:  Jenkins, TeamCity, Travis 

Continuous Testing

Here, you continuously test your developed software for errors with your automation test tools. These tools allow you to thoroughly test multiple levels of code in parallel to make sure there are no functional bugs. At this stage, you can utilize Docker containers to simulate your test environment.

DevOps Tools Used: Jenkins, Selenium TestNG, JUnit

Continuous Monitoring

An important stage where you constantly monitor the application performance program. You can record the basic information on how to use the software. Then you process this data to check the program functions.

DevOps Tools Used: Splunk, Sensu, ELK Stack, and Nagios.

Virtualization and Containerization

At this stage, you install the code on the production servers. It's also important to make sure you have put the code correctly on all servers.

DevOps Tools Used: Docker, Vagrant, Kubernetes.

How To Get Into The DevOps Career?

If you are excited to learn more about DevOps, consider attending LearNow's immersive DevOps Certification training course. You will work in practical scenarios, a wide range of thematic, hands-on diverse topics, and industrial designs.

This DevOps Certification course will help you understand the DevOps concepts, core tools, and methods you need to become a successful and productive DevOps team member in your workplace.

Final Thoughts

We hope this article helped you learn more about the DevOps methodology.

Now you understand what DevOps is. Look at LearNow’s DevOps training, the best online learning provider with more than 500 satisfied students worldwide.

LearNow’s DevOps Certification Training helps aspirants understand DevOps in general and get knowledge of various popular DevOps tools such as Puppet, Jenkins, Nagios, and more. Start DevOps Certification Training today to begin your great career journey!

BY: Admin

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