modprobe in a docker container
… it is actually prossible.
You just need to make sure to:
- Run the container in privileged mode (--privileged)
- Add all capabilities (--cap-add=ALL)
- Passthrough /lib/modules into the container (-v /lib/modules:/lib/modules)
You will end up with a commandline like:
$ docker run --name lvm --rm --privileged --cap-add=ALL -it -v /dev:/dev -v /lib/modules:/lib/modules docker.io/fabiand/centos7-lvmNote: Loading a kernel module inside the container make it available on the host, and thus also on all other containers running on that host.