Initial Dockerfile for Nigerian TTS API

This Dockerfile sets up a Python environment for the FastAPI-based Nigerian Text-to-Speech API. It:
- Uses Python 3.9 as the base image
- Installs necessary system dependencies
- Sets up a non-root user for security
- Configures directories for models and audio files
- Launches the FastAPI application using uvicorn

Dockerfile

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+FROM python:3.9
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    wget \
+    && rm -rf /var/lib/apt/lists/*
+
+# Create a non-root user
+RUN useradd -m -u 1000 user
+USER user
+ENV PATH="/home/user/.local/bin:$PATH"
+
+# Set working directory
+WORKDIR /app
+
+# Copy requirements file
+COPY --chown=user ./requirements.txt requirements.txt
+RUN pip install --no-cache-dir --upgrade -r requirements.txt
+
+# Copy application code
+COPY --chown=user ./main.py /app/
+COPY --chown=user ./.gitignore /app/
+COPY --chown=user ./README.md /app/
+
+# Create directories for models and audio files
+RUN mkdir -p /app/models
+RUN mkdir -p /app/audio_files
+
+# Run the application
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]