dockerfile

FROM node:12.18.0-buster-slim@sha256:97da8d5023fd0380ed923d13f83041dd60b0744e4d140f6276c93096e85d0899
    
RUN  apt-get update \
     && apt-get install -y wget gnupg ca-certificates \
     && wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - \
     && sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list' \
     && apt-get update \
     # We install Chrome to get all the OS level dependencies, but Chrome itself
     # is not actually used as it's packaged in the node puppeteer library.
     # Alternatively, we could could include the entire dep list ourselves
     # (https://github.com/puppeteer/puppeteer/blob/master/docs/troubleshooting.md#chrome-headless-doesnt-launch-on-unix)
     # but that seems too easy to get out of date.
     && apt-get install -y google-chrome-stable \
     && rm -rf /var/lib/apt/lists/* \
     && wget --quiet https://raw.githubusercontent.com/vishnubob/wait-for-it/master/wait-for-it.sh -O /usr/sbin/wait-for-it.sh \
     && chmod +x /usr/sbin/wait-for-it.sh

ADD https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64 /usr/local/bin/dumb-init
RUN chmod +x /usr/local/bin/dumb-init

# Install Puppeteer under /node_modules so it's available system-wide
COPY . /app
WORKDIR /app

ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true
ENV BROWSER_PATH=/usr/bin/google-chrome

RUN groupadd browser
RUN usermod -G browser root
RUN usermod -G browser node
RUN chown root:node /usr/bin/google-chrome
RUN chmod g+x /usr/bin/google-chrome

RUN npm install --loglevel verbose

RUN chown -R node /app

EXPOSE 3000
USER node
ENTRYPOINT ["dumb-init", "--"]
CMD npm run start