This detailed Docker tutorial covers the essential Docker commands, such as how to create a new container, run the container, remove a container and so on. In addition, this guide also explains how to build your own custom Docker image from an existing container and how to remove containers and images.
By default, Docker containers are read-only so to update you just pull a new image and run that. The creation and mapping to volumes allows containers to save user data outside of the container, for instant use with an updated container. This tutorial does not go into the creation of volumes, but there is a link near the end of the article to one which does do so.
I put off learning about Docker containers way too long, and now I'm totally hooked.
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Docker Commands Tutorial | Getting Started With Docker - OSTechNix#
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This getting started with Docker tutorial explains Docker basics such as create, run, search, remove containers and build Docker images.
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