Role of Agile in DevOps

Introduction

Every IT company follows a methodology for software development, to develop software, the client’s requirements should be clear and technically feasible. Sometimes, the client wants to change his needs during the development process. Thus, to reduce the gap between the client and the development team, agile plays a crucial role.

Agile is a methodology used in the software development process. It focuses on the fast delivery of software by increasing the collaboration between the client and the development team. It makes sure, and the software should fulfil the business requirement as well as the functional requirement. The business requirement is that for which the client wants software. The technical specification includes the functionality of the software’s modules. It allows developers to make any changes according to the change in requirements during the development process.

The software development process includes various operations. These operations include

  • Coding
  • Build
  • Testing
  • Deployment

The operations team helps the development team to deliver the software fast. DevOps increase the collaboration between the development and operations team to build, test and release the software. It includes the automation of various tasks.

Why Agile?

Every software is grown for a specific purpose. The software development process takes place only after the clarification of requirements. But sometimes changes in condition occurs. The elements can change due to the new software release in the market for the same purpose. It can also vary due to the client’s consent. The change in software during its development process is not possible in the waterfall model.
Agile methodology overcomes the drawbacks of the waterfall model. The waterfall model can be utilized when requirements are precise, and they do not require any future change. Agile methodology allows variations in the development process. It focuses on the evolutionary approach by giving the software in increments. In agile, the software is grown in increments, and after every increase, it is transferred to the client for feedback. After the changes, if required otherwise, the process of building the next increment starts.

The Agility needs to be built from the ground up; Microservices, Open APIs, Application Release Automation for Continuous Delivery, Continuous Integration and Agile teams are some of the parameters that help build agility.

– From the Article, Digital Transformation for Business

In simple words, while using the waterfall model, the client is not aware of the software features and functionalities until he gets the software. But in agile, due to the involvement of the client, he is aware of software features and functionalities.

Agile and DevOps

Scrum

The various tasks are involved in the software development process. Agile has some frameworks which help to control these tasks. Scrum is one of the most famous structures of agile. It divides specific tasks among the development team for a particular duration, which is known as a sprint. A scrum involves

  • Scrum master: scrum master is the person who determines the length of a sprint. He is responsible for the management of the scrum.
  • Product owner: The product owner is the person who makes sure the product is developing according to requirements or not. He is the person who remains in direct contact with the client.
  • Development team: The development team develops the software according to the need.

In agile methodology, every task is complete as per the discussion in the scrum. Scrum monitors the sprint. It makes sure the jobs in the dash are going on as per the study or not. Sprint makes it easy for the development team to complete their tasks. In scrum, the scrum master determines the duration of the sprint. The maximum length of the sprint can be thirty days. The product owner and development team discuss the task to complete in the sprint. After that, everyone in the development team is clear about their mission when a sprint finishes after that client is known for a review of the product.

Tools

This whole process is not possible without the operation team. DevOps helps the development team and the operation team in the fast delivery of software. The operation team set up the environment for the developer team and also automate various tasks. These tasks involve the management of continuous integration, continuous deployment, continuous monitoring. The DevOps focus on the collaboration between development and operations for the completion of these tasks. DevOps involves the use of various tools for various purposes. It makes the functions of the development team easy by reducing the gap among team members. The developer and tester need a separate environment for their work. Because, if tester tests the code on the same situation on which developer is working, then the software cannot be delivered on time. DevOps reduces the gap among developers and testers by providing them with a separate working environment. In that way, tester and developer can work parallel on the same build. Some essential tools used in DevOps are:

  • Git: It is a version control system which stores the code in the form of repositories.
  • Maven: It is a project management tool that is used to create a build of projects.
  • Docker: Docker is a containerization tool. It allows the developer to wrap an application in a container along with required libraries or dependencies.
  • Jenkins: Jenkins is used for continuous integration and continuous delivery. It has various plugins for various tasks.
  • Ansible: Ansible is used for the constant deployment purpose.
  • Nagios: It is a constant monitoring tool. It monitors the remote machines by using a plugin called Nagios remote plugin executor (NRPE).

Agile and DevOps both methodologies are helpful in the fast delivery of software. Agile involves the development team and client, while DevOps consists of the development and operations team. When the software is successfully developed and tested, then the deployment part takes place. The deployment of software must be done in the presence of the development team to avoid any error. The task of the operations team doesn’t stop after the implementation. They also need to monitor the application and its performance continuously. In simple words, Agile and DevOps proceed together in the whole process of software development.

Conclusion

In the final analysis, we can say, the Agile and DevOps both contribute in different ways for the same purpose. Agile involves the beginning of the development process, and DevOps is the continuous process. Agile, make sure the product is developed according to the client’s requirement. DevOps make the development and delivery process fast by automating various tasks. It is not wrong to say that DevOps is the successor of Agile. Hence we can say, Agile is a lifecycle and DevOps is a continuous process.


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