DevOps is a practice to manage complete application development by a single team. It is the link between development and operation groups connecting it in one. DevOps lifecycle is a cycle polished by specialists of development and operation groups from the starting to the end cycle of a product. Knowing DevOps is not complete without learning its lifecycle. Here we tried to explain the phases of the DevOps lifecycle in the simple way possible.

There are 7 phases of the DevOps lifecycle

Continuous Development
Planning and coding are completed in this phase. In planning, project vision is decided and in coding, code development is initiated for the application. To ease the planning there are no tools but maintaining of code is done with help of tools like Git, SVN, JIRA, etc.

Continuous Testing
To avoid any defects or flaws in the product continuous test is carried out with the help of tools like TestNG, JUnit, etc. Theseautomation tools let the team checkmultiple codesbases in parallel.

Continuous Integration
In this phase, the code is continuously changed weekly or sometimes daily basis. The new codes which are the add-ons of functionality are continuously get integrated with the existing codes. In this stage, the bugs in the system are early detected.

Continuous Deployment
This phase ensures that the code is deployed to all the production servers correctly. Configuration management is an important process in this phase as it maintains functional requirements and the performance of the application code.

Continuous Monitoring
This is an important phase in a lifecycle it carries out many and crucial tasks. Continuous monitoring of the performance of an application is the main activity in this phase. By monitoring and recording, collected information is used for proper functionality, system errors, defining the root cause of issues is done. It also manages the security and availability of the services.

Continuous Feedback
After the integration and testing activity improvement in the deployed product is ensured. The continuous feedback provides the analysis of the improvement. Customers who tested these improved products are requested to share their experiences in this phase which provides further improvement points to the team.

Continuous Operations
This is the shortest and simplest phase in the complete DevOps lifecycle. It helps in the complete automation of the release and respective updating of the application process. This provides developers to invest their time to market for applications.

Before DevOps Waterfall and Agile methodologies were used in a system. But both of them were unable to serve the purpose of fastest and continuous delivery flawless software development. DevOps ensured this by providing quick delivery in SDCL and continuous production. As the adaptation to DevOps continue to increase due to the benefits it provides to the developer as well as users, the DevOps lifecycle will continue to be applied in the development of modern systems and software applications.