Introduction to DevOps Lifecycle

DevOps Lifecycle is the set of phases that involves in DevOps for collaborating development and operation team tasks for faster software delivery. DevOps follows certain processes that include code, build, test, release, deploy, operate, monitor and plan. DevOps lifecycle follows various phases such as continuous development, integration, testing, continuous monitoring, and continuous feedback. Each phase of the DevOps lifecycle is associated with some tools and technologies to achieve the process. Some of the commonly used tools are open source and are implemented based upon the business requirements. As a result, DevOps lifecycle is easy to manage, and it helps quality delivery.

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DevOps Lifecycle

Let’s discuss the DevOps lifecycle to understand how it exactly performs all the tasks. Below is the diagram which shows the structure of the DevOps lifecycle.

1. Code: The first step in this DevOps lifecycle is the coding. In this step, the developers write the code on any platform to develop the product for a customer.

2. Build: The second step is to build where the basic version of the product is built using a suitable programming language.

3. Test: The third step test where the built products are tested using the automation testing tools such as selenium web driver, selenium RC, Bugzilla, etc.

4. Release: This step involves planning, scheduling and controlling the built process in a different environment.

5. Deploy: Here, all the deployment products and files are executed on the server.

6. Operate: After the deployment of the product or application, it is delivered to the customer for use where he uses that product or application for daily life purposes.

7. Monitor: In this step, the delivered products or application to a user has been monitored to note down any uptime and downtime failures, errors.

8. Plan: After monitoring, it gathers all the information and feedback from the customer and plans the changes that need to be done to make it better.

Different Phases of DevOps Lifecycle

Below is the diagram showing various phases of the DevOps lifecycle.

Let’s discuss the phases of the DevOps life-cycle to understand it in a better manner.

Continuous Development
Continuous Integration
Continuous Testing
Continuous Monitoring
Continuous Feedback

1. Continuous Development

In this development phase, the set of objectives that must be needed to deliver through the application are developed. Once these project objectives are finalized, the development process of coding has been started. After development, it transfers to the next phase. As DevOps follows continuous development, it also works on the previous application to make the changes according to the feedback and to meet the requirements.

2. Continuous Integration

After the continuous development, the continuous integration phase occurs where various tests are planned that needs to be carried out in the next phase. It helps us to find out whether the developed application meets the desired requirements or not.

Continuous integration is a seamless process that leads to the next phase inefficient manner.

3. Continuous Testing

In the continuous testing phase, the developed application is tested using automation tools. Testers test the applications using different test cases and give results about different aspects of the product or application. These results are then sent to the development process to improve the product or application.

4. Continuous Monitoring

It is a crucial phase in the DevOps lifecycle where the use of applications or products has been monitored. In this phase, the working of the application or product is being monitored and recorded carefully by using tools such as Splunk, ELK Stack, Nagios, etc. After that, problem areas are identified. And if there are any problems, then it will give to the development team to solve that problem and detect and fix the bugs. This phase will focus on optimal performance and service uptime.

5. Continuous Feedback

The development of a product or application is improved constantly by analyzing the results from all phases, i.e. monitoring, testing, etc. This process is carried out by this continuous feedback phase. This phase comes in between the development and operation phases of the next version of the product or application.

This continuous feedback phase is very important in the DevOps lifecycle because it gives feedback on the product or application earlier after the development and before the product has been delivered to the customer. So it is easy to remove that errors and improve the efficiency of the product or the application. It saves the time of the organization.

Advantages and Disadvantages

The advantages and disadvantages of the lifecycle are mentioned below.

Advantages

This method is easy to implement, and tasks can be arranged easily.
Because of its rigid model, DevOps is easy to manage.
Here, constant monitoring and debugging occur; hence it is less vulnerable and has less of loopholes to errors.

Disadvantages

This can not be used when working with complex and object-oriented models.
This method does not accommodate changing requirements.

Conclusion

It is an efficient way of developing the application or product. It improves the efficiency of the organization and saves time by allowing the users or customers a direct contribution to the development process of the product or application through sharing continuous feedback.

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