Dockerfile
FROM ruby:2.5.5
# install system libraries
RUN apt-get update -yqq \
&& apt-get install -yqq build-essential libpq-dev nodejs qt5-default \
&& apt-get -q clean \
&& rm -rf /var/lib/apt/lists
# install path setup
ENV INSTALL_PATH /abhinav-nepal
RUN mkdir -p $INSTALL_PATH
# install gems
COPY Gemfile* ./
RUN bundle install
COPY . .
CMD bin/start-up