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# from official image
FROM ubuntu:18.04
# key-value pairs
# allow more than one
#
LABEL version="1.0"
# install package
RUN apt-get update
RUN apt-get install -y curl sudo
RUN curl -sL https://deb.nodesource.com/setup_16.x | sudo -E bash -
RUN apt-get install -y nodejs
# set working directory to /app
WORKDIR /app
# copy index.js from current directory into the container at /app
COPY . /app
# install need packages specified in package.json
RUN npm install
# expose port 7860 for acessing the app
EXPOSE 7860
# This allows Heroku bind its PORT the Apps port
# since Heroku needs to use its own PORT before the App can be made accessible to the World
EXPOSE $PORT
# run app when container launches
CMD ["node", "app.js"] |