Update Dockerfile

Dockerfile

@@ -1,22 +1,28 @@
-FROM python:3.10-slim
+# ── Base image ────────────────────────────────────────────────────────────────
+FROM python:3.11-slim
 
-WORKDIR /app
+# HuggingFace Spaces runs as a non-root user (UID 1000)
+RUN useradd -m -u 1000 user
+USER user
 
-# System deps (important for FAISS + HF embeddings)
-RUN apt-get update && apt-get install -y \
-    build-essential \
-    git \
-    && rm -rf /var/lib/apt/lists/*
+ENV HOME=/home/user \
+    PATH=/home/user/.local/bin:$PATH \
+    PYTHONUNBUFFERED=1 \
+    PYTHONDONTWRITEBYTECODE=1
 
-# Install Python deps
-COPY requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
+WORKDIR $HOME/app
 
-# Copy app
-COPY . .
+# ── Install dependencies ───────────────────────────────────────────────────────
+COPY --chown=user requirements.txt .
+RUN pip install --no-cache-dir --upgrade pip && \
+    pip install --no-cache-dir -r requirements.txt
 
-# HF Spaces uses port 7860
+# ── Copy application files ────────────────────────────────────────────────────
+# Make sure faiss_index/, prompt_engineering.py, and main.py are all present
+COPY --chown=user . .
+
+# ── Expose port 7860 (required by HuggingFace Spaces) ────────────────────────
 EXPOSE 7860
 
-# Start FastAPI with uvicorn
-CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]
+# ── Launch ────────────────────────────────────────────────────────────────────
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]