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q5-mithal-monitor/Dockerfile

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+# ============================================================
+# Mithal.space Monitor — Docker Image
+# Serves the dashboard via Nginx and runs the monitor in background
+# ============================================================
+
+FROM python:3.12-slim
+
+# Prevent Python from buffering stdout/stderr
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+
+# Install system deps for nginx
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends nginx curl && \
+    rm -rf /var/lib/apt/lists/*
+
+# Remove default nginx site
+RUN rm -f /etc/nginx/sites-enabled/default
+
+# Set working directory
+WORKDIR /app
+
+# Install Python dependencies first (layer caching)
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application files
+COPY monitor.py .
+COPY dashboard.html /usr/share/nginx/html/index.html
+COPY style.css /usr/share/nginx/html/
+COPY script.js /usr/share/nginx/html/
+COPY metrics.json /usr/share/nginx/html/metrics.json
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+# Create log directory
+RUN mkdir -p /var/log/nginx && \
+    touch /app/monitor.log
+
+# Expose port 80
+EXPOSE 80
+
+# Start script: run monitor in background, nginx in foreground
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]