Extract conf templates:
```bash
sudo docker-compose run jitsi-conference-focus bash -c \
'apt-get update && apt-get install -y unzip && unzip /srv/jicofo/jicofo.jar && cat reference.conf'
sudo docker-compose run jitsi-videobridge bash -c \
'apt-get update && apt-get install -y unzip && unzip /srv/jvb/jitsi-videobridge.jar && cat reference.conf'
```
