https://github.com/jwilder/nginx-proxy/pull/337#issuecomment-181752096

Dockerfile

FROM nginx:1.9.9
MAINTAINER Jason Wilder [email protected]

# Install wget and install/updates certificates
RUN apt-get update \
 && apt-get install -y -q --no-install-recommends \
    ca-certificates \
    wget \
 && apt-get clean \
 && rm -r /var/lib/apt/lists/*

# Configure Nginx and apply fix for very long server names
RUN echo "daemon off;" >> /etc/nginx/nginx.conf \
 && sed -i 's/^http {/&\n    server_names_hash_bucket_size 128;/g' /etc/nginx/nginx.conf

# Install Forego
RUN wget -P /usr/local/bin https://godist.herokuapp.com/projects/ddollar/forego/releases/current/linux-amd64/forego \
 && chmod u+x /usr/local/bin/forego

ENV DOCKER_GEN_VERSION 0.5.0

#RUN wget https://github.com/jwilder/docker-gen/releases/download/$DOCKER_GEN_VERSION/docker-gen-linux-amd64-$DOCKER_GEN_VERSION.tar.gz \
# && tar -C /usr/local/bin -xvzf docker-gen-linux-amd64-$DOCKER_GEN_VERSION.tar.gz \
# && rm /docker-gen-linux-amd64-$DOCKER_GEN_VERSION.tar.gz

## docker-gen binary produced from https://github.com/baptistedonaux/docker-gen/commit/2b9600c142c5adf2493e0c577b8f295df4b37a27
COPY ./docker-gen /usr/local/bin/docker-gen
RUN chmod +x /usr/local/bin/docker-gen

COPY . /app/
WORKDIR /app/

ENV DOCKER_HOST unix:///tmp/docker.sock

VOLUME ["/etc/nginx/certs"]

ENTRYPOINT ["/app/docker-entrypoint.sh"]
CMD ["forego", "start", "-r"]