Docker on Windows 10 Home

Question

My question is: If you use Docker tool box (that is required for windows 10 home to run Docker) you are essentially using a virtual machine (vm)?

If you are using a vm already the only reason to use docker from that point is to save on many more multiple instances?

Meaning if you only want 1 extra (guest instance): you can have a vm. Though, with docker (toolbox on windows 10 home) you would have 1 vm and it runs docker?

The only way that is useful is if you want many more instances as in: 1 vm + 1 docker or + 1000 more dockers?

Or am I missing something?

Answer 1

Yes, docker toolbox uses Oracle VirtualBox cause Windows 7, 8, and Windows 10 home cannot use Hyper V. And yes, If you are using a VM already the only reason to use docker from that point is to save on many more multiple instances but it also allows easy backup and deployment. But you are losing a decent amount of memory when running a VM and then even more when you are running docker.