Dockerfile

FROM alpine

# Installs latest Chromium (92) package.
RUN apk add --no-cache \
  chromium \
  nss \
  freetype \
  harfbuzz \
  ca-certificates \
  ttf-freefont \
  nodejs \
  yarn

# Tell Puppeteer to skip installing Chrome. We'll be using the installed package.
ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true \
  PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium-browser

# Puppeteer v10.0.0 works with Chromium 92.
RUN yarn add puppeteer@10.0.0

# Add user so we don't need --no-sandbox.
RUN addgroup -S pptruser && adduser -S -g pptruser pptruser \
  && mkdir -p /home/pptruser/Downloads /app \
  && chown -R pptruser:pptruser /home/pptruser \
  && chown -R pptruser:pptruser /app

WORKDIR /app

COPY ./package.json package.json
COPY ./yarn.lock yarn.lock

RUN yarn

COPY ./src src

# Run everything after as non-privileged user.
USER pptruser

CMD [ "yarn", "start" ]