feature: Containers

Dockerfile

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+FROM python:3.9-slim
+
+# Install system dependencies required for OpenCV
+RUN apt-get update && apt-get install -y \
+    libgl1 \
+    libglib2.0-0 \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# Copy requirements first to leverage Docker cache
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY . .
+
+# Expose port 5000
+EXPOSE 5000
+
+# Run the application
+CMD ["python", "app.py"]

docker-compose.yml

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+version: '3.8'
+
+services:
+  people-counter:
+    build: .
+    ports:
+      - "5000:5000"
+    devices:
+      - "/dev/video0:/dev/video0"
+    restart: unless-stopped
+    # Privileged mode helps with accessing hardware devices if standard mapping fails
+    privileged: true
+    environment:
+      - FLASK_ENV=production