Dockerfile for working with Rust and WebAssembly.

Dockerfile.rust-wasm-js

ARG RUST_IMAGE=rust:1.52.1

FROM $RUST_IMAGE AS install-sys-pkgs

RUN apt-get update \
    && \
    apt-get install -y --no-install-recommends \
#       Z shell is a customizable Unix shell.
        zsh \
#       Install node & npm.
        nodejs npm \
#       Firefox dependencies to run headless.
        xvfb libgtk-3-dev libdbus-glib-1-2 \
    && \
#   Update npm.
    npm install npm@latest -g \
    && \
#   wasm-pack is a tool for building and working with rust generated wasm.
    curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh


FROM install-sys-pkgs AS get-firefox

ARG FIREFOX_VERSION="88.0"
ARG FIREFOX_LANG="en-US"

ENV PROT="https://" \
    FQDN="download-installer.cdn.mozilla.net" \
    TAR_PATH="/pub/firefox/releases/$FIREFOX_VERSION/linux-x86_64/$FIREFOX_LANG/" \
    TAR_BALL="firefox-$FIREFOX_VERSION.tar.bz2"
ENV TAR_URL="$PROT$FQDN$TAR_PATH$TAR_BALL"

# Decompresses firefox to /opt/, next stage will recover
# /opt/firefox/ and discard this intermediary image.
ADD $TAR_URL /tmp/
RUN tar xjf /tmp/firefox-$FIREFOX_VERSION.tar.bz2 -C /opt/


FROM install-sys-pkgs AS config-firefox

# Only copies /opt/firefox/ from previous stage, discarding the rest.
COPY --from=get-firefox /opt/firefox/ /opt/firefox/
RUN ln -s /opt/firefox/firefox /usr/bin/firefox


FROM config-firefox AS create-dev-user

ARG USER=rustdev
RUN useradd ${USER} --shell /bin/bash --create-home
USER ${USER}


FROM create-dev-user AS install-rust-tools

RUN rustup component add \
        rustfmt \
        rust-src \
        rust-docs \
        clippy \
    && \
    cargo install \
        cargo-watch \
        cargo-generate \
        cargo-expand