Questions
1 of 6
1What is a Docker container?
2How is a container different from a virtual machine?
3What are cgroups and how does Docker use them?
4How do you list running containers?
5How do you run a container from an image?
6How do you stop a running container?
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Using Docker
01 / 06

What is a Docker container?

Containers are isolated environments for running code. A Docker container is like a box that holds your app and everything it needs to run — no more 'it works on my machine' problems.

A Docker container is a lightweight, standalone, and executable package that includes:
  1. 1

    Your application code

  2. 2

    All its dependencies, libraries, binaries

  3. 3

    And even runtime (like Node.js, Python, etc.)