Installing and configuring Docker

Traditional virtualization technologies provide hardware virtualization, which means they create a complete hardware environment so each virtual machine (VM) needs a complete operating system to run it. Therefore they have some major drawbacks because they are heavyweight and produce a lot of overhead while running. This is where the open-source Docker containerization engine offers an attractive alternative. It can help you build applications in Linux containers, thus providing application virtualization.

This means that you can bundle any Linux program of choice with all its dependencies and its own environment and then share it or run multiple instances of it, each as a completely isolated and separated process on any modern Linux kernel, thus providing native runtime performance, easy portability, and high scalability. Here, in this recipe, we will show you how to install and configure Docker on your CentOS 7 server.

Getting ready

To complete this recipe...