What is DevOps Methodology? Advantages and Stages of DevOps

by StarAgile

April 21, 2021
Category DevOps


DevOps Methodology

DevOps methodology is the principles and concepts that combine operations and development. DevOps culture came into existence about a decade ago and integrates the DevOps Life Cycle Management that consists of Plan, Code, Build, Test, Release, Deploy, Operate, and Monitor. 

DevOps culture has been adopted by almost all the software companies across the world and has reaped benefits in an unprecedented way. In 2020 and beyond the DevOps professionals have huge demands in many companies and professionals with DevOps certifications are more preferred than the uncertified professionals. To know more, enroll for the DevOps training in the reputed institute and gain professional certification.

The traditional SDLC had many disadvantages such as it was expensive, lot of errors and bugs, human intervention causing delays and errors, software realization only at the end of all the multiple cycles, no automation, siloed operations  and developments, no collaboration, no proper communication in the team, delayed time, inefficient and ineffective culture, etc. This was the cause that the DevOps methodology came into the picture. 

The DLC has many advantages that the traditional SDLC did not have. In DevOps culture, the CI/CD pipeline is a continuous process that includes all steps in building a product as a process in sequence. 

Advantages of DevOps

1) Integration of various functions such as operations and development together

2) Faster delivery to the market

3) Multiple  build, release, and deployments

4) Automation in every phase of the DevOps Life Cycle Management

5) Multiple versions of software 

6) DevOps tools that provide easier CI/CD pipeline

7) Less expensive

8) Greater communication in the team

9) Greater Collaboration in the team

10) Infrastructure-as-a-Code

11) DevSecOps with security in every phase of the software development and maintenance

12) Fewer errors and bugs due to less human intervention

Stages of DevOps

1) Continuous Development

Here the software or the applications is coded and built continuously and gets committed in the repository. Lots of tools are used in this stage such as Git, CVS, SVN, and Mercurial, etc. The development takes place in stages. You have a newer version of the software for every development. The developments can be carried out by multiple persons in the development team in parallel and you get multiple versions of the same software. Due to the DevOps tools and coding the build is automated in such a way that there are fewer errors and bugs. All this and more are discussed in the DevOps Online Course.

2) Configuration Management

As we know if get multiple versions of the software are being committed in the version control repository, the tools used for these are SubVersion, GitHub, Compuware ISPW, GitLab, Artifactory, BitBuket, HelixCore, and Perforce, etc. The configuration of the software is important as it provides the base for the final deployment in the production. The versioning of the software is a major step in configuration management. The various versions of the software produce small increments of the software.

3) Continuous Integration

In continuous integration, the software that is being developed is integrated with various modules, add-ons, and libraries to form complex software in it. The tools used for this purpose are Jenkins, Travis, and TeamCity, etc. The entire process is automated such that there are fewer errors and bugs. This integration helps the next stages a lot and is an important part of the CI/CD pipeline. Thus this stage helps the continuous deployment and continuous operations and continuous monitoring. Get the latest in DevOps by taking DevOps online certification course in a reputed institute.

4) Continuous Testing

In this stage, the different kinds of testing such as unit testing, UAT, systems testing, security testing, integration testing, regression testing, and performance testing are carried out and committed in the test environment. The testing is said to be continuous as the test cases are built and the software is tested continuously as the software is coded and built continuously. By this there are no to fewer errors or bugs that enter the production environment. The tools used in this stage are JUnit, Selenium, TestNG and Jenkins, etc. Continuous testing is a major part of the DevOps methodology.

5) Continuous Deployment

The CI/CD pipeline ensures that there are no errors and compatibility and platform issues when the software is continuously deployed in the production environment. Automation plays a key role in committing the software in production.  This stage is also called Continuous delivery as the customer requirements are fulfilled at various stages with multiple iterations. The customer checks the working software by various stages and does not get a cultural shock when the software is finally deployed in the production. The tools used for this stage are Chef, Ansible, Docker, Puppet, and Vagrant.

6) Continuous Operations

In continuous operations the Infrastructure-as-a-Code (IaaC) is leveraged and all the servers, infrastructure, and various other devices required for the production are automated with the help of scripts and coding. In earlier software development there were lots of human interventions as the infrastructure is managed manually. However, in DevOps the IaaC everything is automated. The tools used for this automation are Linux OS, and coding with JavaScript, Java, and Python, etc. You can become certified professionals by learning the DevOps methodology by undergoing the DevOps certification online training.

7) Continuous Monitoring

Once the software is deployed in the production, then the last stage is to monitor the software and the infrastructure including platforms such as using various monitoring tools such as Nagios, Splunk, New Relic, and ELK Stack, etc. There are very few monitoring hurdles in DevOps when compared to the traditional SDLC. Continuous monitoring helps DevOps to ensure that the uptime of the software of the applications is increased and there is very little downtime for the applications or the software.

Final Takeaway

Is DevOps a methodology? Now you have the answer for this and you know how to be successful in DevOps and adopt DevOps in your organization for application development. Do you want to learn and get certified in DevOps? If yes, StarAgile provides an online DevOps certification training course for all interested and aspiring professionals. 

Register now at StarAgile institute. 

Keep Learning!!!