Docker container based on official image blocks during startup in VMs

[marthjod]

The Docker image on https://hub.docker.com/r/spreed/webrtc/ still contains the entrypoint script using /dev/random (172ac70), causing containers to block forever during startup in environments lacking randomness (VMs, for instance).

Reproduce:

docker run -d ... spreed/webrtc
...
Creating new server secrets ...
# (blocking)

[buddhikajay]

Might be an issue because of lack of entropy to generate secrets. Try following

1. install rng-tools (apt-get install rng-tools on ubuntu/debian)
2. sudo rngd -r /dev/urandom

then try to run the docker command

[marthjod]

You're right, but that wasn't my point (plus I don't want to install additional packages in the VM just because a Docker container misbehaves). My request was to update the Docker hub image so it reflects the current (and working) code base.