Rust Embedded dev container setup

devcontainer.json

{
  "name": "hello_world_blink",
  // Select between image and build propieties to pull or build the image.
  // "image": "docker.io/espressif/idf-rust:esp32s3_latest",
  "build": {
    "dockerfile": "Dockerfile",
    "args": {
      "CONTAINER_USER": "esp",
      "CONTAINER_GROUP": "esp",
      "ESP_BOARD": "esp32s3"
    }
  },
  "customizations": {
    "vscode": {
      "settings": {
        "editor.formatOnPaste": true,
        "editor.formatOnSave": true,
        "editor.formatOnSaveMode": "file",
        "editor.formatOnType": true,
        "lldb.executable": "/usr/bin/lldb",
        "files.watcherExclude": {
          "**/target/**": true
        },
        "rust-analyzer.checkOnSave.command": "clippy",
        "rust-analyzer.checkOnSave.allTargets": false,
        "[rust]": {
          "editor.defaultFormatter": "rust-lang.rust-analyzer"
        }
      },
      "extensions": [
        "rust-lang.rust-analyzer",
        "tamasfe.even-better-toml",
        "serayuzgur.crates",
        "mutantdino.resourcemonitor",
        "yzhang.markdown-all-in-one",
        "ms-vscode.cpptools",
        "actboy168.tasks",
        "Wokwi.wokwi-vscode"
      ]
    }
  },
  "runArgs": [
    "--userns=keep-id"
  ],
  "remoteUser": "esp"
}

Dockerfile

ARG VARIANT=bullseye
FROM debian:${VARIANT}
ENV DEBIAN_FRONTEND=noninteractive
ENV LC_ALL=C.UTF-8
ENV LANG=C.UTF-8

# Arguments
ARG CONTAINER_USER=esp
ARG CONTAINER_GROUP=esp
ARG ESP_BOARD=all
ARG GITHUB_TOKEN

# Install dependencies
RUN apt-get update \
    && apt-get install -y git curl gcc clang ninja-build libudev-dev unzip xz-utils\
    python3 python3-pip python3-venv libusb-1.0-0 libssl-dev pkg-config libpython2.7 \
    && apt-get clean -y && rm -rf /var/lib/apt/lists/* /tmp/library-scripts

# Set users
RUN adduser --disabled-password --gecos "" ${CONTAINER_USER}
USER ${CONTAINER_USER}
WORKDIR /home/${CONTAINER_USER}

# Install rustup
RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- \
    --default-toolchain none -y --profile minimal

# Update envs
ENV PATH=${PATH}:/home/${CONTAINER_USER}/.cargo/bin

# Install extra crates
RUN ARCH=$($HOME/.cargo/bin/rustup show | grep "Default host" | sed -e 's/.* //') && \
    curl -L "https://github.com/esp-rs/espup/releases/latest/download/espup-${ARCH}" -o "${HOME}/.cargo/bin/espup" && \
    chmod u+x "${HOME}/.cargo/bin/espup" && \
    curl -L "https://github.com/esp-rs/espflash/releases/latest/download/cargo-espflash-${ARCH}.zip" -o "${HOME}/.cargo/bin/cargo-espflash.zip" && \
    unzip "${HOME}/.cargo/bin/cargo-espflash.zip" -d "${HOME}/.cargo/bin/" && \
    rm "${HOME}/.cargo/bin/cargo-espflash.zip" && \
    chmod u+x "${HOME}/.cargo/bin/cargo-espflash" && \
    curl -L "https://github.com/esp-rs/embuild/releases/latest/download/ldproxy-${ARCH}.zip" -o "${HOME}/.cargo/bin/ldproxy.zip" && \
    unzip "${HOME}/.cargo/bin/ldproxy.zip" -d "${HOME}/.cargo/bin/" && \
    rm "${HOME}/.cargo/bin/ldproxy.zip" && \
    chmod u+x "${HOME}/.cargo/bin/ldproxy" && \
    curl -L "https://github.com/bjoernQ/esp-web-flash-server/releases/latest/download/web-flash-${ARCH}.zip" -o "${HOME}/.cargo/bin/web-flash.zip" && \
    unzip "${HOME}/.cargo/bin/web-flash.zip" -d "${HOME}/.cargo/bin/" && \
    rm "${HOME}/.cargo/bin/web-flash.zip" && \
    chmod u+x "${HOME}/.cargo/bin/web-flash"

# Install Xtensa Rust
RUN if [ -n "${GITHUB_TOKEN}" ]; then export GITHUB_TOKEN=${GITHUB_TOKEN}; fi  \
    && ${HOME}/.cargo/bin/espup install\
    --targets "${ESP_BOARD}" \
    --log-level debug \
    --export-file /home/${CONTAINER_USER}/export-esp.sh

# Set default toolchain
RUN rustup default esp


# Activate ESP environment
RUN echo "source /home/${CONTAINER_USER}/export-esp.sh" >> ~/.bashrc

CMD [ "/bin/bash" ]