Update Dockerfile

Dockerfile

@@ -1,49 +1,25 @@
-FROM python:3.8-bullseye  # Using full Debian image for better compatibility
+# Stage 1: Builder
+FROM python:3.8-bullseye as builder
 
-# Set up environment
-ENV PYTHONUNBUFFERED=1 \
-    DEBIAN_FRONTEND=noninteractive \
-    PIP_NO_CACHE_DIR=1 \
-    PIP_DISABLE_PIP_VERSION_CHECK=1
-
-# Install system dependencies - expanded set
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    build-essential \
-    cmake \
-    git \
-    curl \
-    wget \
-    libopenblas-dev \
-    libssl-dev \
-    zlib1g-dev \
-    libbz2-dev \
-    libreadline-dev \
-    libsqlite3-dev \
-    llvm \
-    libncurses5-dev \
-    libncursesw5-dev \
-    xz-utils \
-    tk-dev \
-    libffi-dev \
-    liblzma-dev \
+    build-essential cmake git curl wget \
     && rm -rf /var/lib/apt/lists/*
 
-# Install Python packages with precise order and fallbacks
 COPY requirements.txt .
-RUN pip install --upgrade pip setuptools wheel && \
-    pip install torch==2.2.1 --index-url https://download.pytorch.org/whl/cpu && \
-    pip install ninja==1.11.1 && \
-    pip install transformers==4.38.2 && \
-    pip install accelerate==0.27.2 && \
-    pip install datasets==2.18.0 && \
-    pip install huggingface_hub==0.20.3 && \
-    { pip install deepspeed==0.13.1 || pip install deepspeed==0.13.1 --no-deps; } && \
-    pip install unsloth==0.2.0 && \
-    { pip install vllm==0.3.0 || pip install vllm==0.3.0 --no-deps; } && \
-    pip install fastapi==0.109.1 uvicorn==0.27.0
+RUN pip install --user --upgrade pip setuptools wheel && \
+    pip install --user torch==2.2.1 --index-url https://download.pytorch.org/whl/cpu
+
+# Stage 2: Runtime
+FROM python:3.8-slim
+
+COPY --from=builder /root/.local /root/.local
+ENV PATH=/root/.local/bin:$PATH
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt \
+    && find /root/.local -type d -name tests -exec rm -rf {} +
 
 WORKDIR /app
 COPY . /app
-RUN mkdir -p /app/checkpoints /app/logs
 
 CMD ["python", "train.py"]