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How are operating systems related to docker images?

Stack Overflow Asked on November 27, 2021

A docker info command will generate metadata which says a few things about the current docker installation. One of the key-value pairs is OSType. I use a Windows 10 machine, yet the OSType is listed as linux. I am curious as to what this is and what it means for:

  • Images
  • Containers

Is the OSType a parameter that is global to both Images and Containers or does each newly generated image implement a different OSType?

Being primarily a Windows user, I would really love if I could simply make use of Windows as my primary OS for my Docker containers but I’m not sure if this is actually possible?

One Answer

Yes it is, you can change the container type using the dockercli tool

Usage: DockerCli.exe [-SwitchDaemon] [-Version]
-Version: Show the Docker for Windows version information
-SwitchDaemon: Point the Docker CLI to either Linux containers or Windows containers
-SharedDrives: List the shared drives

about your first question, I've never used the windows version of docker, the only thing that I know is that you need to change the daemon to use linux or windows containers.

Answered by Sergio Tanaka on November 27, 2021

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