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dash/docs/screenshotter/Dockerfile

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+FROM node:12-buster-slim
+
+RUN apt-get update \
+    && apt-get install -y wget gnupg \
+    && 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 \
+    && apt-get install -y google-chrome-stable fonts-freefont-ttf libxss1 fonts-noto-color-emoji \
+      --no-install-recommends \
+    && rm -rf /var/lib/apt/lists/*
+
+ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD 1
+ENV PUPPETEER_EXECUTABLE_PATH /usr/bin/google-chrome-stable
+
+ADD package.json yarn.lock /app/
+
+RUN cd /app && yarn install \
+    # Add user so we don't need --no-sandbox.
+    # same layer as npm install to keep re-chowned files from using up several hundred MBs more space
+    && groupadd -r pptruser && useradd -r -g pptruser -G audio,video pptruser \
+    && mkdir -p /home/pptruser/Downloads \
+    && chown -R pptruser:pptruser /home/pptruser \
+    && chown -R pptruser:pptruser /app/node_modules
+
+ADD . /app/
+
+# Run everything after as non-privileged user.
+USER pptruser
+
+CMD ["node", "/app/screenshot.js"]