Dockerfile

# Conda base with VMTK
FROM continuumio/miniconda3:latest

WORKDIR /app

# VTK requires OpenGL system libraries which aren't in the base miniconda image
RUN apt-get update && apt-get install -y --no-install-recommends \
    libgl1 libglib2.0-0 libsm6 libxrender1 libxext6 libosmesa6 \
    && rm -rf /var/lib/apt/lists/*

# Create the vmtk conda environment
COPY environment.yml .
RUN conda env create -f environment.yml && conda clean -afy

# Verify the VMTK install: SetInputData must exist on VMTK filter objects
RUN conda run -n vmtk_env python -c "import vtk; print('VTK', vtk.vtkVersion.GetVTKVersion()); from vmtk import vtkvmtkMiscPython as m; f = m.vtkvmtkPolyDataNetworkExtraction(); assert hasattr(f, 'SetInputData'), 'SetInputData missing - ABI mismatch'; print('VMTK SetInputData OK')"

# Install Flask + CORS + gunicorn inside the vmtk_env
RUN conda run -n vmtk_env pip install --no-cache-dir flask flask-cors gunicorn

# Copy the backend source code
COPY centerline_extraction.py ostium_detection.py endograft_generation.py server.py ./

# Hugging Face Spaces expects port 7860, server.py reads PORT from env
ENV PORT=7860
EXPOSE 7860

# Run with gunicorn for production stability, timeout 600 allows up to 10 minutes per request (Voronoi can be slow)
CMD ["conda", "run", "--no-capture-output", "-n", "vmtk_env", \
     "gunicorn", "server:app", \
     "--bind", "0.0.0.0:7860", \
     "--timeout", "600", \
     "--workers", "1", \
     "--log-level", "info"]