Part 1: The Concepts

Consider a factory with a huge production line that snakes across the floor like a metallic river. Each portion of this assembly line flows flawlessly into the next, but there are also moments when components falter and processes stutter here and there. The actual marvel of modern production, however, is not flawless execution but intelligent contingency plans, the ability to self-correct, and the relentless quest for efficiency. Mistakes are not only problems; they are also chances for improvement and growth. Continuous Integration (CI) represents this same resilient attitude in the digital art of software development.

The blueprint for our own sophisticated CI manufacturing line is the first step in our journey. We use the Golden Circle theory to unravel the “what,” streamline the “how,” and distill the “why” of CI. Before we roll up our sleeves and begin tinkering with the tools and approaches in the upcoming parts, let us first become acquainted with the CI blueprint. In this part, we describe the CI process, become acquainted with its essential concepts, and prepare to answer why we do CI at all. Just as engineers on the assembly line understand that each turn of the screw is critical, you will learn how each facet of CI is critical for the smooth flow of the development life cycle.

This part has the following chapter:

• Chapter 1, The What, How, and Why of Continuous Integration