Without any doubt, IT is the most happening and highly visible domain at any point in time. As every kind of enterprising business (small, medium, and large) is being enabled through the delectable advancements in the IT space, there is a direct and decisive relationship between IT and business. With the IT budgets being pruned by business behemoths year after year due to the stagnant, even sliding, world economy, it is a clear-cut mandate and timely reminder for IT professionals to do more with less. That is, there is a continued insistence for deeper and deft automation of various business operations by methodically leveraging the proven and promising technologies, tools, and tips. Infrastructure optimization through hybrid clouds, process excellence through integration and orchestration techniques, the fast spread of the DevOps culture, the foundational aspect of compartmentalization through virtualization and containerization approaches, the penetrative, pervasive, and persuasive nature of APIs, the fast emergence of MSA, the cognitive analytics, and so on, are being overwhelmingly recognized and reaped as the dominant and prominent ways forward toward business agility, affordability, adaptivity, and autonomy.

Docker-enabled containerization is an intensely reviewed mechanism that has the innate strength to bring in certain critical disruptions for the field of software engineering. The Docker paradigm is all about optimal packaging of any kinds of software applications along with their dependencies to be shipped, deployed, and executed across any on-premise and off-premise environments. Containerized applications (applications and their execution containers) are extremely lightweight, portable, scalable, reproducible, and repeatable packages compared with the currently available options in the software industry.

The Docker idea facilitates many purposeful innovations. Docker (through its unique packaging format and the highly integrated platform) simplifies and accelerates the formation of publicly discoverable, network accessible, and remotely deployable containerized applications that are easily composable, consumable, and configurable. Further, there are software solutions for robust monitoring, measuring, and managing containers. In this chapter, we will discuss how the accelerated maturity and stability of the Docker paradigm ensures the much-needed business transformations. The literature talks about several game-changing implications of the Docker technology toward the next-generation IT and this chapter aims to unravel the Docker mystery.