from ubuntu:20.04 ENV TZ=America/Toronto RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone # Install rustup RUN apt-get update && apt-get install -y curl ENV RUSTUP_HOME /usr/local/rustup ENV CARGO_HOME /usr/local/cargo ENV PATH /usr/local/cargo/bin:$PATH RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y # Install dpkg dependencies RUN apt-get update && apt-get install -y dpkg dpkg-dev