Which Operating System is Docker virtualizing when it runs the Node image?

Question

When you use the Node Docker Image, i suppose that Docker is running or (virtualizing) a OS that has a node installation, I will like to know what is that OS, or how is posible that Docker is able to run NodeJs

Answer 1

There are several different image variants for Node - the official builds are all either flavors of Debian or Alpine Linux.

See more information: https://github.com/nodejs/docker-node/blob/main/README.md#image-variants

• node:<version>
  • Debian
• node:alpine
  • Alpine
• node:buster
  • Debian 10
• node:stretch
  • Debian 9
• node:slim
  • Debian minimal