Dockerfile

FROM node:12

ENV PDF_CACHE=/data

RUN groupadd -r pptruser && useradd -r -g pptruser -G audio,video pptruser \
    && mkdir -p /home/pptruser/Downloads \
    && chown -R pptruser:pptruser /home/pptruser \
    && apt-get update \
    && apt-get -y install xvfb gconf-service libasound2 libatk1.0-0 libc6 libcairo2 libcups2 \
      libdbus-1-3 libexpat1 libfontconfig1 libgbm1 libgcc1 libgconf-2-4 libgdk-pixbuf2.0-0 libglib2.0-0 \
      libgtk-3-0 libnspr4 libpango-1.0-0 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 \
      libxcomposite1 libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libxss1 \
      libxtst6 ca-certificates fonts-liberation libappindicator1 libnss3 lsb-release xdg-utils wget \
    && rm -rf /var/lib/apt/lists/* \
    && mkdir /data \
    && chown -R pptruser:pptruser /data 

# Create app directory
WORKDIR /home/pptruser

USER pptruser

# Install app dependencies&&
# A wildcard is used to ensure both package.json AND package-lock.json are copied
# where available (npm@5+)
COPY package.json ./
COPY yarn.lock ./

RUN yarn install --only=production

# Bundle app source
COPY ./dist .

EXPOSE 3000

CMD [ "node", "index.js" ]