content: # Update the VARIANT arg in devcontainer.json to pick a Node.js version: 14, 12, 10 
  ARG VARIANT=14
  FROM node:${VARIANT}
  
  # Options for setup scripts
  ARG INSTALL_ZSH="true"
  ARG UPGRADE_PACKAGES="true"
  ARG USERNAME=node
  ARG USER_UID=1000
  ARG USER_GID=$USER_UID
  
  ENV NVM_DIR=/usr/local/share/nvm
  ENV NVM_SYMLINK_CURRENT=true \ 
      PATH=${NVM_DIR}/current/bin:${PATH}
  
  # Install needed packages and setup non-root user. Use a separate RUN statement to add your own dependencies.
  COPY library-scripts/*.sh /tmp/library-scripts/
  RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
      # Remove imagemagick due to https://security-tracker.debian.org/tracker/CVE-2019-10131
      && apt-get purge -y imagemagick imagemagick-6-common \
      # Install common packages, non-root user
      && /bin/bash /tmp/library-scripts/common-debian.sh "${INSTALL_ZSH}" "${USERNAME}" "${USER_UID}" "${USER_GID}" "${UPGRADE_PACKAGES}" \
      # Update yarn and install nvm
      && rm -rf /opt/yarn-* /usr/local/bin/yarn /usr/local/bin/yarnpkg \
      && /bin/bash /tmp/library-scripts/node-debian.sh "${NVM_DIR}" "none" "${USERNAME}" \
      # Clean up
      && apt-get autoremove -y && apt-get clean -y && rm -rf /var/lib/apt/lists/* /root/.gnupg /tmp/library-scripts
  
  # Configure global npm install location
  ARG NPM_GLOBAL=/usr/local/share/npm-global
  ENV PATH=${PATH}:${NPM_GLOBAL}/bin
  RUN mkdir -p ${NPM_GLOBAL} \
      && chown ${USERNAME}:root ${NPM_GLOBAL} \
      && npm config -g set prefix ${NPM_GLOBAL} \
      && sudo -u ${USERNAME} npm config -g set prefix ${NPM_GLOBAL} \
      && echo "if [ \"\$(stat -c '%U' ${NPM_GLOBAL})\" != \"${USERNAME}\" ]; then sudo chown -R ${USER_UID}:root ${NPM_GLOBAL} ${NVM_DIR}; fi" \
      | tee -a /root/.bashrc /root/.zshrc /home/${USERNAME}/.bashrc >> /home/${USERNAME}/.zshrc
  
  # Install eslint globally
  RUN sudo -u ${USERNAME} npm install -g eslint
  
  # [Optional] Uncomment this section to install additional OS packages.
  # RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
  #     && apt-get -y install --no-install-recommends <your-package-list-here>
  
  # [Optional] Uncomment if you want to install an additional version of node using nvm
  # ARG EXTRA_NODE_VERSION=10
  # RUN su node -c "source /usr/local/share/nvm/nvm.sh && nvm install ${EXTRA_NODE_VERSION}"
  