problem with youtube in docker

Dockerfile

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+# Use Python 3.11 slim image as base
+FROM python:3.11-slim
+
+# Set environment variables
+ENV PYTHONUNBUFFERED=1 \
+    PYTHONDONTWRITEBYTECODE=1 \
+    PIP_NO_CACHE_DIR=1 \
+    DEBIAN_FRONTEND=noninteractive
+
+# Set working directory
+WORKDIR /app
+
+# Install system dependencies including FFmpeg
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ffmpeg \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements first for better caching
+COPY requirements.txt .
+
+# Install Python dependencies
+RUN pip install --upgrade pip && \
+    pip install -r requirements.txt
+
+# Copy application files
+COPY app.py .
+COPY templates/ templates/
+
+# Create music directory with proper permissions
+RUN mkdir -p /app/youtube && \
+    chmod -R 775 /app/youtube
+
+# Create a non-root user and switch to it
+#RUN useradd -m -u 1000 appuser && \
+#    chown -R appuser:appuser /app
+#USER appuser
+
+# Expose port
+EXPOSE 5000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:5000')" || exit 1
+
+# Run the application
+CMD ["python", "app.py"]