I want to create a fake webcam in a docker container, so I install v4l2loopback-dkms on a docker container with the "adoptopenjdk/openjdk11:ubuntu-jre" image.
When I run:
sudo modprobe v4l2loopback devices=1
I get this error:
mobprobe: FATAL: Module v4l2loopback not found in directory /lib/modules/5.15.49-linuxkit
I tried making v4l2loopback from the github repository using make, but I still get the same error.