1 Before you begin

Docker is a platform for running applications in lightweight units called containers. Containers have taken hold in software everywhere, from serverless functions in the cloud to strategic planning in the enterprise. Docker is becoming a core competency for operators and developers across the industry--in the 2019 Stack Overflow survey, Docker polled as people’s number one “most wanted” technology ( http://mng.bz/04lW ).

And Docker is a simple technology to learn. You can pick up this book as a complete beginner, and you’ll be running containers in chapter 2 and packaging applications to run in Docker in chapter 3. Each chapter focuses on practical tasks, with examples and labs that work on any machine that runs Docker--Windows, ...

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