Issue while running FastAPI TTS(Text To Speech) Docker Image on Serverless

FROM ubuntu:22.04

# Install system dependencies and Python 3.10
RUN apt-get update && apt-get install -y --no-install-recommends \
    python3 \
    python3-venv \
    python3-pip \
    python3-dev \
    curl \
    bash \
    build-essential \
    libsndfile1 \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

RUN apt-get update && apt-get install -y ffmpeg

# Set up virtual environment
ENV VIRTUAL_ENV=/opt/openvoice
RUN python3 -m venv $VIRTUAL_ENV
ENV PATH="$VIRTUAL_ENV/bin:$PATH"

# Upgrade pip
RUN pip install --no-cache-dir --upgrade pip

# RUN apt-get update && apt-get install -y python3-dev build-essential

# Install torch and other dependencies
RUN pip install --no-cache-dir torch setuptools>=40.8.0 langid fastapi soundfile librosa inflect unidecode eng_to_ipa pypinyin jieba
RUN pip install cn2an pydub faster_whisper whisper_timestamped
RUN pip install --upgrade setuptools

# Expose the ports used by the application
EXPOSE 8000

# Copy application code
COPY . .

# Create a startup script
RUN echo '#!/bin/bash\n\
source /opt/openvoice/bin/activate\n\
python tts_2.py' > /start.sh && chmod +x /start.sh

# Run the application
CMD ["/bin/bash", "/start.sh"]