This is a work in progress
This container exposes the following volumes:
/etc/asterisk
$ sudo docker build -t="oggers/asterisk-festival" .
$ sudo docker run --name asterisk -d oggers/asterisk-festival
# map config on the host
$ sudo docker run -v <config dir on host>:/etc/asterisk -d oggers/asterisk-festival
# test container
$ sudo docker run --rm -it oggers/asterisk-festival /bin/bash