FROM nginx

RUN apt-get update -qq && apt-get -y install apache2-utils

ENV RAILS_ROOT /usr/src/app

WORKDIR $RAILS_ROOT

RUN mkdir log

COPY public public/

# Copy Nginx config template
COPY docker/web/app.conf /tmp/docker_example.nginx

# substitute variable references in the Nginx config template for real values from the environment

# put the final config in its place

RUN envsubst '$RAILS_ROOT' < /tmp/docker_example.nginx > /etc/nginx/conf.d/default.conf