Update Dockerfile

Dockerfile

@@ -1,12 +1,11 @@
 FROM python:3.8-slim
 
-# Set environment variables
+# 1. Set environment variables
 ENV PYTHONUNBUFFERED=1 \
     DEBIAN_FRONTEND=noninteractive \
-    PIP_NO_CACHE_DIR=1 \
-    PIP_DISABLE_PIP_VERSION_CHECK=1
+    PIP_NO_CACHE_DIR=1
 
-# Install system dependencies first
+# 2. Install system dependencies
 RUN apt-get update && apt-get install -y --no-install-recommends \
     build-essential \
     libopenblas-dev \
@@ -15,16 +14,17 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     cmake \
     && rm -rf /var/lib/apt/lists/*
 
-# Install Python dependencies in two stages
+# 3. Install Python packages in optimal order
 COPY requirements.txt .
 RUN pip install --upgrade pip setuptools wheel && \
-    pip install torch --index-url https://download.pytorch.org/whl/cpu && \
+    pip install torch==2.2.1 --index-url https://download.pytorch.org/whl/cpu && \
+    pip install --no-deps vllm==0.3.0 && \
     pip install -r requirements.txt
 
 WORKDIR /app
 COPY . /app
 
-# Pre-create directories
+# 4. Create necessary directories
 RUN mkdir -p /app/checkpoints /app/logs
 
 CMD ["python", "train.py"]