Overview of Continuous Integration and Continuous Delivery

DevOps is a software development methodology that seeks to optimize the delivery process as well as strengthen collaboration between the software development teams that build the solutions, and the operations teams responsible for these solutions are available in different environments. 

DevOps manages principles that are part of the collaborative structure and are used throughout the development and deployment of applications. The principles by which DevOps operates are the following:

  •  Continuous Integration
  •  Continuous Delivery
  •  Continuous Deployment

Continuous delivery focuses on making the development of a product always in a state of delivery throughout its life cycle. Continuous delivery improves efficiency and adjusts the planning and budget of the software delivery process, making it cheaper and less risky to release new versions of the software to the customer. The implementation of continuous delivery means creating multiple feedback loops to ensure that the software is delivered to the customer more quickly. One of the requirements of continuous delivery is that all people, developers, system technicians, QA and operations collaborate effectively throughout the delivery process.

Continuous integration is a development practice by which developers routinely merge their code into the central branch (also known as master or trunk) into a version control system - ideally, several times per day. Each change triggers a set of quick tests to discover possible errors, which the developers must solve immediately.

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These practices, which are a critical part of continuous integration and delivery, also require test automation and version control. Functional validations, such as performance and usability tests, give the team the opportunity to detect problems introduced by the changes as soon as possible and solve them immediately.

The objective of the integration and continuous delivery is to make the process of releasing the changes to the final client technically simple, that is, a routine and boring process. At this point, the IT team can devote more time to planning tasks and proactive strategies that can produce even more value to the company.

One of the greatest advantages in speeding up the delivery of applications through the development of the complete life cycle is that they can be developed iteratively and then delivered to production on demand by the client.

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