![]() ![]() Imagine that you install PostgreSQL on a Ubuntu machine and configure it to work, it takes time, but with docker, you can containerize that installation and operating system, and the next time you need it, simply start it up.ĭocker images are not Virtual Machines, but rather self-contained units of software, and that self-contained unit contains everything that it needs to be running. This containerized software is possible to be run by anyone who possesses it. This is possible by containerizing software, a set of software that has everything needed to run. Video recording of this article What is Dockerĭocker is used for building shippable images that can be shipped and executed on any system that has docker installed.
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