Dockerfile

# Use an official Python slim image for the base
FROM python:3.10-slim

# Set the working directory
WORKDIR /app

# Install dependencies: .NET SDK, wget, and Python pip
RUN apt-get update && apt-get install -y \
    wget \
    apt-transport-https \
    && wget https://packages.microsoft.com/config/debian/11/packages-microsoft-prod.deb -O packages-microsoft-prod.deb \
    && dpkg -i packages-microsoft-prod.deb \
    && apt-get update && apt-get install -y dotnet-sdk-7.0 \
    && apt-get install -y python3-pip \
    && rm -rf /var/lib/apt/lists/*

# Create a non-root user and set it as the user for the rest of the image
RUN useradd -ms /bin/bash appuser

# Ensure the /app directory is owned by the non-root user
RUN chown -R appuser:appuser /app

# Switch to the non-root user
USER appuser

# Create necessary directories and set permissions
RUN mkdir -p /app/uploads /home/appuser/.dotnet && \
    chmod -R 777 /app/uploads /home/appuser/.dotnet

# Set the DOTNET_HOME environment variable
ENV DOTNET_HOME="/home/appuser/.dotnet"
# Add the .NET SDK tools directory to PATH
ENV PATH="${PATH}:${DOTNET_HOME}:/usr/share/dotnet"

# Ensure csc is in the PATH
RUN echo $PATH && which csc

# Copy the requirements file with the correct owner
COPY --chown=appuser:appuser ./requirements.txt /app/requirements.txt

# Install Python dependencies
RUN pip3 install --no-cache-dir --upgrade -r /app/requirements.txt

# Copy the Flask app files
COPY --chown=appuser:appuser . .

# Expose the port the app runs on
EXPOSE 7860

# Command to run the Flask app
CMD ["python3", "main.py"]