DevOps is an essential discipline that you can’t do without when you develop and deliver microservices or want to benefit from an agile development approach. However, you can achieve better business outcomes with DevOps even if you decide not to create microservices or are still in the early stages of adopting agile methodology.
Experienced development and program managers insist that DevOps should be an element of every software development effort. They will also warn you that DevOps is not a shot in the arm for IT operations that lack momentum or efficiency.
The key result for any DevOps practice is continuous improvement for the business in its journey toward objectives everybody in the organization understands and supports. That, in turn, requires progressively improving code—the constant flame that keeps companies alive and growing. And those steady code improvements require practices and infrastructures that enable gifted people to make a strong contribution with an unceasing momentum. Often, this is represented as striving for the highest possible levels of automation and extensive, multilevel testing and monitoring with sustained feedback loops to the developers. But automation, testing, and monitoring need to happen in front of the strategic backdrop, or they’ll sooner or later run out of steam, leaving people disoriented.
The key idea behind DevOps is that the business is not receiving the best value when the development team simply hands code to technology operations. Under these conditions, users don’t receive new functionality as efficiently as they should, and disparate development and operations teams never do their most productive work. DevOps bridges the gap between creating new software code and bringing the functionality to users by means of optimized, generally automated processes and an infrastructure that can facilitate a fast, ongoing succession of testing,
deployment, and integration steps.
DevOps brings development and operations together through the trans-formative nature of an agile culture, increased team collaboration, and the automation of processes. When this alignment occurs organizations experience more productive teams, faster delivery of features, improved communication, and continuous delivery.
DevOps empowers organizations to create a culture where developers and operations teams work together seamlessly. Allowing each member of the team to get an understanding of each other's tasks enables a high level of transparency and improved collaboration.
Continuous integration and continuous deployment (CI/CD) is a key aspect of DevOps. CI/CD aims to reduce cycle times, which aligns with the lean thinking behind agile principles. Cycle time in this case means the period between a concept expressed in a user story and the handing over of the new functionality to users.