Update CUDA Dockerfile for Python environment setup

Author: Smartappli

Docker/cuda/cuda.Dockerfile

@@ -8,42 +8,43 @@ ENV DEBIAN_FRONTEND=noninteractive \
 
 WORKDIR /app
 
-# Dépendances système pour Python + build C/C++ + OpenCL/BLAS
 RUN apt-get update && \
     apt-get upgrade -y && \
     apt-get install -y --no-install-recommends \
-        git build-essential \
         python3 python3-pip python3-dev \
+        python3.12-venv \  # <<< IMPORTANT
+        git build-essential \
         cmake ninja-build \
         gcc g++ wget \
         ocl-icd-opencl-dev opencl-headers clinfo \
         libclblast-dev libopenblas-dev \
-    && mkdir -p /etc/OpenCL/vendors \
-    && echo "libnvidia-opencl.so.1" > /etc/OpenCL/vendors/nvidia.icd \
-    && rm -rf /var/lib/apt/lists/*
+    && mkdir -p /etc/OpenCL/vendors && \
+    echo "libnvidia-opencl.so.1" > /etc/OpenCL/vendors/nvidia.icd && \
+    rm -rf /var/lib/apt/lists/*
+
+# Création du venv (maintenant possible)
+RUN python3 -m venv /opt/venv
+ENV PATH="/opt/venv/bin:${PATH}"
 
 # Copie du projet
 COPY . .
 
-# Variables pour la build CUDA de llama-cpp-python
+# Vars pour la build CUDA
 ENV CUDA_DOCKER_ARCH=all \
     GGML_CUDA=1 \
     FORCE_CMAKE=1 \
     CMAKE_ARGS="-DGGML_CUDA=on"
 
-# Installer les deps Python générales
-RUN python3 -m venv /opt/venv && \
-    /opt/venv/bin/pip install --upgrade --no-cache-dir pip wheel && \
-    /opt/venv/bin/pip install --no-cache-dir \
+# Install deps Python dans le venv
+RUN pip install --upgrade --no-cache-dir pip wheel && \
+    pip install --no-cache-dir \
         pytest scikit-build setuptools \
         fastapi uvicorn sse-starlette \
         pydantic-settings starlette-context
 
-ENV PATH="/opt/venv/bin:${PATH}"
-
-# Installer llama-cpp-python avec CUDA
+# Install llama-cpp-python avec CUDA
 RUN pip install --no-cache-dir "llama-cpp-python" --verbose
 
 EXPOSE 8000
 
-CMD ["python3", "-m", "llama_cpp.server", "--config_file", "config-cuda.json"]
+CMD ["python", "-m", "llama_cpp.server", "--config_file", "config-cuda.json"]