optimize for rpi

Dockerfile.minimal

@@ -17,27 +17,21 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 # Set working directory
 WORKDIR /app
 
-# Create minimal requirements inline to ensure we use Pydantic v1
+# Install Python dependencies directly
-# which doesn't require Rust compilation
+# Using Pydantic v1 which doesn't require Rust compilation
-RUN cat > requirements.txt << 'EOF'
+RUN pip install --no-cache-dir \
-# Minimal requirements - no compilation needed
+    fastapi==0.95.2 \
-# Using Pydantic v1 which is pure Python (no Rust required)
+    pydantic==1.10.9 \
-fastapi==0.95.2
+    uvicorn==0.22.0 \
-pydantic==1.10.9
+    httpx==0.24.1 \
-uvicorn==0.22.0
+    icalendar==5.0.7 \
-httpx==0.24.1
+    jinja2==3.1.2 \
-icalendar==5.0.7
+    apscheduler==3.10.1 \
-jinja2==3.1.2
+    pytz==2023.3 \
-apscheduler==3.10.1
+    python-multipart==0.0.6 \
-pytz==2023.3
+    starlette==0.27.0 \
-python-multipart==0.0.6
+    typing-extensions==4.6.3 \
-starlette==0.27.0
+    python-dateutil==2.8.2
-typing-extensions==4.6.3
-python-dateutil==2.8.2
-EOF
-
-# Install Python dependencies - all pure Python or pre-built wheels
-RUN pip install --no-cache-dir -r requirements.txt
 
 # Copy application files
 COPY main.py .

Dockerfile.pizero

@@ -0,0 +1,46 @@
+# Optimized Dockerfile for Raspberry Pi Zero (ARMv6)
+# Minimal memory footprint and no compilation required
+FROM python:3.11-slim
+
+# Set environment variables
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    TZ=Europe/Berlin \
+    PIP_NO_CACHE_DIR=1 \
+    PIP_DISABLE_PIP_VERSION_CHECK=1
+
+# Install only essential runtime dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    tzdata \
+    && rm -rf /var/lib/apt/lists/* \
+    && ln -snf /usr/share/zoneinfo/$TZ /etc/localtime \
+    && echo $TZ > /etc/timezone
+
+# Set working directory
+WORKDIR /app
+
+# Install Python dependencies one by one for better memory management on Pi Zero
+# Using older stable versions that are known to work on ARMv6
+RUN pip install --no-cache-dir fastapi==0.95.2
+RUN pip install --no-cache-dir pydantic==1.10.9
+RUN pip install --no-cache-dir uvicorn==0.22.0
+RUN pip install --no-cache-dir httpx==0.24.1
+RUN pip install --no-cache-dir icalendar==5.0.7
+RUN pip install --no-cache-dir jinja2==3.1.2
+RUN pip install --no-cache-dir apscheduler==3.10.1
+RUN pip install --no-cache-dir pytz==2023.3
+RUN pip install --no-cache-dir python-multipart==0.0.6
+
+# Copy application files
+COPY main.py .
+COPY Vektor-Logo.svg ./
+
+# Create static directory and copy logo
+RUN mkdir -p static && \
+    cp Vektor-Logo.svg static/logo.svg
+
+# Expose port
+EXPOSE 8000
+
+# Run with limited workers and basic asyncio loop for Pi Zero
+CMD ["python", "-m", "uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "1", "--loop", "asyncio"]

build-pi.sh

@@ -0,0 +1,257 @@
+#!/bin/bash
+
+# Build script for Raspberry Pi Zero/ARM devices
+# Optimized for low memory and no compilation
+
+set -e
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+# Configuration
+IMAGE_NAME="turmli-calendar"
+CONTAINER_NAME="turmli-calendar"
+
+# Print functions
+print_error() {
+    echo -e "${RED}❌ $1${NC}"
+}
+
+print_success() {
+    echo -e "${GREEN}✅ $1${NC}"
+}
+
+print_info() {
+    echo -e "${BLUE}ℹ️  $1${NC}"
+}
+
+print_warning() {
+    echo -e "${YELLOW}⚠️  $1${NC}"
+}
+
+# Detect system
+detect_system() {
+    ARCH=$(uname -m)
+    OS=$(cat /etc/os-release | grep "^ID=" | cut -d= -f2 | tr -d '"')
+    VERSION=$(cat /etc/os-release | grep "^VERSION_CODENAME=" | cut -d= -f2 | tr -d '"')
+    
+    print_info "System: ${OS} ${VERSION} on ${ARCH}"
+    
+    # Check if we're on a Raspberry Pi
+    if [ -f /proc/device-tree/model ]; then
+        MODEL=$(tr -d '\0' < /proc/device-tree/model)
+        print_info "Raspberry Pi detected: ${MODEL}"
+    fi
+    
+    # Check available memory
+    if [ -f /proc/meminfo ]; then
+        TOTAL_MEM=$(grep MemTotal /proc/meminfo | awk '{print $2}')
+        TOTAL_MEM_MB=$((TOTAL_MEM / 1024))
+        print_info "Available RAM: ${TOTAL_MEM_MB}MB"
+        
+        if [ $TOTAL_MEM_MB -lt 512 ]; then
+            print_warning "Low memory detected! Build may be slow."
+            print_info "Tip: Consider adding swap space if build fails"
+        fi
+    fi
+}
+
+# Check for container runtime
+check_runtime() {
+    if command -v podman &> /dev/null; then
+        RUNTIME="podman"
+        print_success "Using Podman"
+    elif command -v docker &> /dev/null; then
+        RUNTIME="docker"
+        print_success "Using Docker"
+    else
+        print_error "No container runtime found!"
+        print_info "Install Podman (recommended) or Docker:"
+        echo "  sudo apt-get update"
+        echo "  sudo apt-get install podman"
+        exit 1
+    fi
+}
+
+# Build the container
+build_container() {
+    print_info "Building container image..."
+    
+    # Choose the right Dockerfile
+    if [ -f "Dockerfile.pizero" ] && [[ "$ARCH" == "armv6l" ]]; then
+        DOCKERFILE="Dockerfile.pizero"
+        print_info "Using Pi Zero optimized Dockerfile"
+    elif [ -f "Dockerfile.minimal" ]; then
+        DOCKERFILE="Dockerfile.minimal"
+        print_info "Using minimal Dockerfile (no compilation)"
+    elif [ -f "Dockerfile" ]; then
+        DOCKERFILE="Dockerfile"
+        print_warning "Using standard Dockerfile (may require compilation)"
+    else
+        print_error "No Dockerfile found!"
+        exit 1
+    fi
+    
+    # Build with memory limits for Pi Zero
+    if [[ "$ARCH" == "armv6l" ]] && [ $TOTAL_MEM_MB -lt 512 ]; then
+        print_warning "Building with memory constraints..."
+        ${RUNTIME} build \
+            --memory-swap -1 \
+            --file "${DOCKERFILE}" \
+            --tag "${IMAGE_NAME}" \
+            . || {
+            print_error "Build failed!"
+            print_info "Try these solutions:"
+            echo "  1. Add swap space:"
+            echo "     sudo dd if=/dev/zero of=/swapfile bs=1M count=1024"
+            echo "     sudo mkswap /swapfile"
+            echo "     sudo swapon /swapfile"
+            echo "  2. Use pre-built image:"
+            echo "     ${RUNTIME} pull docker.io/yourusername/turmli-calendar:armv6"
+            exit 1
+        }
+    else
+        ${RUNTIME} build \
+            --file "${DOCKERFILE}" \
+            --tag "${IMAGE_NAME}" \
+            . || {
+            print_error "Build failed!"
+            exit 1
+        }
+    fi
+    
+    print_success "Container image built successfully!"
+}
+
+# Run the container
+run_container() {
+    print_info "Starting container..."
+    
+    # Check if container already exists
+    if ${RUNTIME} ps -a --format '{{.Names}}' | grep -q "^${CONTAINER_NAME}$"; then
+        print_info "Container already exists, removing it..."
+        ${RUNTIME} stop ${CONTAINER_NAME} 2>/dev/null || true
+        ${RUNTIME} rm ${CONTAINER_NAME} 2>/dev/null || true
+    fi
+    
+    # Create cache file if it doesn't exist
+    if [ ! -f "calendar_cache.json" ]; then
+        echo "{}" > calendar_cache.json
+        print_info "Created cache file"
+    fi
+    
+    # Run with appropriate resource limits for Pi
+    if [[ "$ARCH" == "armv6l" ]] && [ $TOTAL_MEM_MB -lt 512 ]; then
+        print_info "Running with memory constraints..."
+        ${RUNTIME} run -d \
+            --name ${CONTAINER_NAME} \
+            --memory 256m \
+            --memory-swap -1 \
+            -p 8000:8000 \
+            -v $(pwd)/calendar_cache.json:/app/calendar_cache.json:Z \
+            -e TZ=Europe/Berlin \
+            --restart unless-stopped \
+            ${IMAGE_NAME}
+    else
+        ${RUNTIME} run -d \
+            --name ${CONTAINER_NAME} \
+            -p 8000:8000 \
+            -v $(pwd)/calendar_cache.json:/app/calendar_cache.json:Z \
+            -e TZ=Europe/Berlin \
+            --restart unless-stopped \
+            ${IMAGE_NAME}
+    fi
+    
+    print_success "Container started!"
+    print_info "Access the calendar at: http://$(hostname -I | awk '{print $1}'):8000"
+    print_info "or http://localhost:8000"
+}
+
+# Check container status
+check_status() {
+    print_info "Checking container status..."
+    
+    if ${RUNTIME} ps --format "table {{.Names}}\t{{.Status}}\t{{.Ports}}" | grep -q ${CONTAINER_NAME}; then
+        ${RUNTIME} ps --format "table {{.Names}}\t{{.Status}}\t{{.Ports}}" | grep -E "NAMES|${CONTAINER_NAME}"
+        
+        # Test if the app is responding
+        print_info "Testing application..."
+        sleep 3
+        if curl -s -f http://localhost:8000/api/events > /dev/null 2>&1; then
+            print_success "Application is running and healthy!"
+        else
+            print_warning "Application not responding yet, checking logs..."
+            ${RUNTIME} logs --tail 20 ${CONTAINER_NAME}
+        fi
+    else
+        print_warning "Container is not running"
+    fi
+}
+
+# Show logs
+show_logs() {
+    ${RUNTIME} logs -f ${CONTAINER_NAME}
+}
+
+# Main script
+case "${1:-build}" in
+    build)
+        detect_system
+        check_runtime
+        build_container
+        ;;
+    run)
+        detect_system
+        check_runtime
+        run_container
+        check_status
+        ;;
+    start)
+        detect_system
+        check_runtime
+        build_container
+        run_container
+        check_status
+        ;;
+    status)
+        check_runtime
+        check_status
+        ;;
+    logs)
+        check_runtime
+        show_logs
+        ;;
+    stop)
+        check_runtime
+        print_info "Stopping container..."
+        ${RUNTIME} stop ${CONTAINER_NAME}
+        print_success "Container stopped"
+        ;;
+    help)
+        echo "Raspberry Pi Build Script for Turmli Calendar"
+        echo ""
+        echo "Usage: $0 [COMMAND]"
+        echo ""
+        echo "Commands:"
+        echo "  build   - Build the container image (default)"
+        echo "  run     - Run the container"
+        echo "  start   - Build and run"
+        echo "  status  - Check container status"
+        echo "  logs    - Show container logs"
+        echo "  stop    - Stop the container"
+        echo "  help    - Show this help"
+        echo ""
+        echo "This script is optimized for Raspberry Pi Zero and other"
+        echo "low-resource ARM devices. It uses Pydantic v1 to avoid"
+        echo "Rust compilation requirements."
+        ;;
+    *)
+        echo "Unknown command: $1"
+        echo "Run '$0 help' for usage"
+        exit 1
+        ;;
+esac

requirements-pizero.txt

@@ -0,0 +1,25 @@
+# Requirements for Raspberry Pi Zero (ARMv6)
+# All pure Python packages - NO compilation required
+# Uses Pydantic v1 to avoid Rust dependency
+
+fastapi==0.95.2
+pydantic==1.10.9
+uvicorn==0.22.0
+httpx==0.24.1
+icalendar==5.0.7
+jinja2==3.1.2
+apscheduler==3.10.1
+pytz==2023.3
+python-multipart==0.0.6
+
+# These will be installed as dependencies but listing for clarity:
+# starlette==0.27.0
+# typing-extensions==4.6.3
+# python-dateutil==2.8.2
+# six==1.16.0
+# h11==0.14.0
+# click==8.1.3
+# anyio==3.7.0
+# sniffio==1.3.0
+# certifi
+# idna