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This note is my study summary from Liz Rice’s online course. I highly recommend going through the following content first, and then using this note to reinforce and deepen your understanding of the related topics.
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You can get the complete sample code from my repo below
https://github.com/baconYao/container-from-scratch-golang
As Liz Rice mentions in each lesson, our goal is to mimic Docker’s run command so that an application can run in an environment isolated from the host (aka a container). However, note that we won’t be pulling a public image—instead, we’ll use the Ubuntu 24.04 rootfs as the container’s file system.
Therefore, we’ll use Golang to build a small program that provides a capability similar to docker run.

Capture from Liz Rice’s materials
As we enhance the functionality of our small program, we will explore the following topics, allowing us to create a basic simulation of a non-production container environment.