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# Get Nginx image from Docker hub
FROM nginx
# Copy our configuration file to a folder in our Docker image where Nginx will use it
COPY default.conf.template /etc/nginx/conf.d/default.conf.template
# Configure Nginx for Heroku
CMD /bin/bash -c "envsubst '\$PORT' < /etc/nginx/conf.d/default.conf.template > /etc/nginx/conf.d/default.conf" && nginx -g 'daemon off;'
# Update available packages in Debian
RUN apt-get update
# Install curl cmd line tool
RUN apt-get install curl -y
# Fetch latest node v10.x from nodesource
RUN curl -sL https://deb.nodesource.com/setup_10.x -o nodesource_setup.sh
# Run setup script
RUN bash nodesource_setup.sh
# install nodejs and npm
RUN apt install nodejs -y
# Change work dir
WORKDIR /usr/src/app
# Copy everything
COPY . .
# Do a clean install based on package-lock file
RUN npm ci
# Build frontend
RUN npm run build
# Expose port picked by Heroku. Otherwise we couldn't connect to the server running inside a docker container
EXPOSE $PORT
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