Docker Course
Docker
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Beginner

Installing Docker

Definition

The process of setting up the Docker environment on a host operating system, which differs significantly between Linux, Windows, and macOS.

Explain Like I'm New

Downloading the Docker engine so your computer understands how to run containers.

Real World Example

On Linux, you run a few `apt-get` commands in the terminal to install the raw Engine. On Mac and Windows, you usually download a graphical app called 'Docker Desktop'.

Common Use Cases

  • •Environment setup
  • •Onboarding

Interview Questions

basic

  • Do you install the exact same Docker software file on Linux as you do on a Macbook?

intermediate

  • Why does installing Docker on Windows require WSL2 (Windows Subsystem for Linux)?

Flash Cards

Question

Same software file?

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Answer

No. The installation architectures are vastly different.

Question

Why WSL2?

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Answer

Because Docker containers rely on core features of the Linux Kernel (like namespaces and cgroups). Windows does not have a Linux Kernel. WSL2 runs a highly efficient, invisible Linux kernel inside Windows, allowing Docker to run natively.