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Mastering Apache Spark 2.x - Second Edition by Romeo Kienzler

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Understanding the core concepts of Docker

So now it's time to further unfold the topic by introducing Docker. Docker basically makes use of LXC but adds support for building, shipping, and running operation system images. So there exists a layered image format, which makes it possible to pack the filesystem components necessary for running a specific application into a Docker images file.

Although not necessary for this chapter because it is already provided by the following minikube package we are using, Docker can be easily installed on different operating systems. Since Docker uses functionality only present in the Linux kernel, it can be run natively only on Linux (and only there you will see the performance benefits over using virtual ...

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