Cross compilation

Dockerfile

@@ -4,21 +4,28 @@ FROM python:3.11-slim-bullseye
 # Set the working directory
 WORKDIR /app
 
-# Install Node.js based on platform
-RUN apt-get update && apt-get install -y curl build-essential libffi-dev redis-server ca-certificates gnupg \
+# ------------------------------------------------------------------
+# 1. Install system packages and Node.js
+# ------------------------------------------------------------------
+RUN apt-get update && apt-get install -y \
+    curl build-essential libffi-dev redis-server ca-certificates gnupg \
     && mkdir -p /etc/apt/keyrings \
     && curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg \
     && NODE_MAJOR=18 \
-    && echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list \
+    && echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" \
+       | tee /etc/apt/sources.list.d/nodesource.list \
     && apt-get update \
     && apt-get install -y nodejs
 
-# Install Nim
+# ------------------------------------------------------------------
+# 2. Install Nim from source
+# ------------------------------------------------------------------
 RUN apt-get update && \
-  apt-get install -y curl xz-utils gcc openssl ca-certificates git # &&
+    apt-get install -y curl xz-utils gcc openssl ca-certificates git
 
 RUN mkdir -p /opt/nim && \
-    curl -L https://nim-lang.org/download/nim-2.2.0.tar.xz | tar -xJf - -C /opt/nim --strip-components=1 && \
+    curl -L https://nim-lang.org/download/nim-2.2.2.tar.xz \
+    | tar -xJf - -C /opt/nim --strip-components=1 && \
     cd /opt/nim && \
     sh build.sh && \
     bin/nim c koch && \
@@ -27,56 +34,104 @@ RUN mkdir -p /opt/nim && \
 
 ENV PATH="/opt/nim/bin:${PATH}"
 
-RUN nim --version \
-    nimble --version
+RUN nim --version && nimble --version
 
-# Copy the requirements file and install using pip
+# ------------------------------------------------------------------
+# 3. Add BOTH arm64 + armhf architectures & install cross toolchains
+# ------------------------------------------------------------------
+RUN dpkg --add-architecture arm64 \
+    && dpkg --add-architecture armhf \
+    && apt-get update \
+    && apt-get install -y \
+       crossbuild-essential-arm64 \
+       crossbuild-essential-armhf \
+       libc6-dev:arm64 \
+       libc6-dev:armhf \
+       libevdev-dev:arm64 \
+       libevdev-dev:armhf \
+       pkg-config \
+       wget
+
+# ------------------------------------------------------------------
+# 4. Build + install liblgpio for ARM64 (aarch64) to DESTDIR
+#    so we don't overwrite the default /usr/local/lib
+# ------------------------------------------------------------------
+# Build + install liblgpio for ARM64
+RUN mkdir -p /tmp/lgpio-arm64 && cd /tmp/lgpio-arm64 && \
+    wget -q -O v0.2.2.tar.gz https://github.com/joan2937/lg/archive/refs/tags/v0.2.2.tar.gz && \
+    tar -xzf v0.2.2.tar.gz && cd lg-0.2.2 && \
+    make clean && make CROSS_PREFIX=aarch64-linux-gnu- && \
+    make DESTDIR=/tmp/install-arm64 install && \
+    # Remove any /usr/local/lib stuff (if placed) and move final libs
+    rm -f /usr/local/lib/liblg*.so* && \
+    mkdir -p /usr/lib/aarch64-linux-gnu /usr/include/aarch64-linux-gnu && \
+    cp /tmp/install-arm64/usr/local/lib/liblg*.so* /usr/lib/aarch64-linux-gnu/ && \
+    cp /tmp/install-arm64/usr/local/include/lgpio.h /usr/include/aarch64-linux-gnu/ && \
+    ldconfig && cd / && rm -rf /tmp/lgpio-arm64 /tmp/install-arm64
+
+# ------------------------------------------------------------------
+# 5. Build + install liblgpio for ARMHF (arm-linux-gnueabihf) to DESTDIR
+# ------------------------------------------------------------------
+    RUN mkdir -p /tmp/lgpio-armhf && cd /tmp/lgpio-armhf && \
+    wget -q -O v0.2.2.tar.gz https://github.com/joan2937/lg/archive/refs/tags/v0.2.2.tar.gz && \
+    tar -xzf v0.2.2.tar.gz && cd lg-0.2.2 && \
+    make clean && make CROSS_PREFIX=arm-linux-gnueabihf- && \
+    make DESTDIR=/tmp/install-armhf install && \
+    rm -f /usr/local/lib/liblg*.so* && \
+    mkdir -p /usr/lib/arm-linux-gnueabihf /usr/include/arm-linux-gnueabihf && \
+    cp /tmp/install-armhf/usr/local/lib/liblg*.so* /usr/lib/arm-linux-gnueabihf/ && \
+    cp /tmp/install-armhf/usr/local/include/lgpio.h /usr/include/arm-linux-gnueabihf/ && \
+    ldconfig && cd / && rm -rf /tmp/lgpio-armhf /tmp/install-armhf
+
+# ------------------------------------------------------------------
+# 6. Install Python dependencies
+# ------------------------------------------------------------------
 WORKDIR /app/backend
 COPY backend/requirements.txt .
 RUN pip3 install --upgrade uv \
     && uv venv \
     && uv pip install --no-cache-dir -r requirements.txt
 
-# Change the working directory for npm install
+# ------------------------------------------------------------------
+# 7. Install and build frontend
+# ------------------------------------------------------------------
 WORKDIR /tmp/frontend
-
-# Copy the npm configuration files
 COPY frontend/package.json frontend/package-lock.json /tmp/frontend/
-
-# Install npm packages
 RUN npm install
 
-# Copy frontend source files and run build
 COPY frontend/ ./
 COPY version.json ../
 RUN npm run build
 
 # Delete all files except the dist and schema folders
 RUN find . -maxdepth 1 ! -name 'dist' ! -name 'schema' ! -name '.' ! -name '..' -exec rm -rf {} \;
 
-# Cleanup node installations and build tools
-RUN apt-get remove -y nodejs curl build-essential libffi-dev ca-certificates gnupg \
+# ------------------------------------------------------------------
+# 8. Clean up unneeded Nodejs & other packages
+#    (Keeping crossbuild-essential-* and build-essential)
+# ------------------------------------------------------------------
+RUN apt-get remove -y nodejs curl libffi-dev ca-certificates gnupg \
     && apt-get autoremove -y \
     && apt-get clean \
     && rm -rf /app/frontend/node_modules \
     && rm -rf /var/lib/apt/lists/* /root/.npm
 
-# Change back to the main directory
+# ------------------------------------------------------------------
+# 9. Prepare Nim environment
+# ------------------------------------------------------------------
 WORKDIR /app/frameos
-
 COPY frameos/frameos.nimble ./
 COPY frameos/nimble.lock ./
 COPY frameos/nim.cfg ./
 
 # Cache nimble deps for when deploying on frame
 RUN nimble install -d -y && nimble setup
 
-# Change back to the main directory
+# ------------------------------------------------------------------
+# 10. Move final built frontend into /app
+# ------------------------------------------------------------------
 WORKDIR /app
-
-# Copy the rest of the application to the container
 COPY . .
-
 RUN rm -rf /app/frontend && mv /tmp/frontend /app/
 
 EXPOSE 8989