Dockerfile

FROM trzeci/emscripten:1.39.10-upstream as emscripten_base
FROM node:12.16.2-buster

# Copy pre-compiled content of Emscripten SDK to target iamge
COPY --from=emscripten_base /emsdk_portable /emsdk_portable

# install required tools to run Emscripten SDK
RUN apt-get update && apt-get install -y \
      python python-pip ca-certificates wget \
 && rm -rf /var/lib/apt/lists/*

# install other tools
RUN apt-get update && apt-get install -y \
      gconf-service wget \
 && rm -rf /var/lib/apt/lists/*

# install X for puppeteer
RUN apt-get update && apt install -y \
      libasound2 libatk1.0-0 libc6 libcairo2 libcups2 \
      libdbus-1-3 libexpat1 libfontconfig1 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 \
      fonts-liberation libappindicator1 libnss3 xdg-utils \
 && rm -rf /var/lib/apt/lists/*

# install example build tool
RUN apt-get update && apt-get install -y \
      hugo \
 && rm -rf /var/lib/apt/lists/*

# build directory
RUN mkdir /build \
 && chmod 777 /build
WORKDIR /build

# Use entrypoint that comes with Emscripten. This is a way to to activate Emscripten Tools.
ENTRYPOINT ["/emsdk_portable/entrypoint"]