Container hard disk and RAM allocation

General Discussions
1

Hello Community,

I am from OpenVZ background and am a beginner in Docker. When I create a docker container, I suppose some x amount of hard disk and y amount of RAM is dedicated/allocated to container.

I want to restrict my container to say, use 20Gb Hard disk and 500 MB RAM. Is is a possibility.
In OpenVZ I can mention this configuration in command line and also in container’s configuration file.

Please guide.

Thanks,
Ashay

2

For memory and CPU constraints, it pretty well documented in the official doc

As for the disk size, I am personally not aware of such a constraint, but others around here might know better. You can always create a limited VG on a lower level and map the volume to that VG as a workaround if nothing better comes up.