Chapter 3. Building Base and Layered Images
In this chapter, we will learn about building base and layered images for production-ready containers. As we saw, Docker containers provide us with ideal environments in which we can build, test, automate, and deploy. The reproductive nature of these exact environments affords a higher degree of efficacy and confidence that currently available script-based deployment systems cannot readily duplicate. The images a developer locally builds, tests, and debugs can then be pushed directly into staging and production environments as the test environment is nearly a mirror image under which the application code runs.
Images are the literal foundational component of containers, defining what flavor of Linux to ...
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