Dockerfile

FROM debian:stretch

# Allow to pass user uid/gid at build time
ARG USER_UID="500"
ARG USER_GID="500"

# Add FreeSwitch repo, add user, enable en_US.utf8 locale, install freeswitch, fix default configuration to work inside container out of the box
RUN apt-get update \
    && apt-get install -y --no-install-recommends gnupg2 ca-certificates wget apt-utils lsb-release \
    && wget -O - https://files.freeswitch.org/repo/deb/debian-release/fsstretch-archive-keyring.asc | apt-key add - \
    && echo "deb http://files.freeswitch.org/repo/deb/debian-release/ `lsb_release -sc` main" > /etc/apt/sources.list.d/freeswitch.list \
    && echo "deb-src http://files.freeswitch.org/repo/deb/debian-release/ `lsb_release -sc` main" >> /etc/apt/sources.list.d/freeswitch.list \
    && echo "deb http://apt.postgresql.org/pub/repos/apt/ stretch-pgdg main" > /etc/apt/sources.list.d/pgdg.list \
    && wget -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - \
    && apt-get update \
    && groupadd -r freeswitch --gid=$USER_GID \
    && useradd -r -g freeswitch --uid=$USER_UID freeswitch \
    && apt-get install -y locales \
    && localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8 \
    && apt-get install -y postgresql-client-11 libpq-dev freeswitch-meta-all \
    && rm /etc/freeswitch/sip_profiles/*-ipv6.xml \
    && sed -i 's/value="::"/value="0.0.0.0"/g' /etc/freeswitch/autoload_configs/event_socket.conf.xml \
    && sed -i 's/<!--<param name="apply-inbound-acl" value="loopback.auto"\/>-->/<param name="apply-inbound-acl" value="any_v4.auto"\/>/g' /etc/freeswitch/autoload_configs/event_socket.conf.xml

ENV LANG en_US.utf8

# Limits Configuration
COPY build/freeswitch.limits.conf /etc/security/limits.d/

# SIP ports
EXPOSE 5060/tcp 5060/udp 5070/tcp 5070/udp 5080/tcp 5080/udp

# WebRTC ports
EXPOSE 5066/tcp 7443/tcp

# EventSocket port
EXPOSE 8021/tcp

# RTP ports
EXPOSE 16384-32768/udp

# allow to override config files and tmp dir to get core dumps in case of crash
VOLUME ["/etc/freeswitch", "/tmp"]

CMD ["freeswitch", "-c", "-nonat", "-u", "freeswitch", "-g", "freeswitch"]