fix

Dockerfile

@@ -1,5 +1,10 @@
 FROM python:3.11-slim
-ENV DEBIAN_FRONTEND=noninteractive
+ENV DEBIAN_FRONTEND=noninteractive \
+    PYTHONUNBUFFERED=1 \
+    # Tesseract path for pytesseract (your code reads this)
+    TESSERACT_CMD=/usr/bin/tesseract \
+    # Default Chroma persistence (your code also reads CHROMA_DIR)
+    CHROMA_DIR=/data/chroma
 
 # System deps + Microsoft key via keyring (for msodbcsql17)
 RUN set -eux; \
@@ -8,6 +13,10 @@ RUN set -eux; \
         curl ca-certificates gnupg2 apt-transport-https \
         unixodbc unixodbc-dev \
         ffmpeg \
+        # ---- Added for pdf2image + pytesseract ----
+        poppler-utils \          # provides pdftoppm / pdftocairo
+        tesseract-ocr \          # OCR engine
+        tesseract-ocr-eng        # English language data (pulled with tesseract on many distros, kept explicit)
     ; \
     mkdir -p /etc/apt/keyrings; \
     curl -fsSL https://packages.microsoft.com/keys/microsoft.asc \
@@ -16,12 +25,22 @@ RUN set -eux; \
       > /etc/apt/sources.list.d/mssql-release.list; \
     apt-get update; \
     ACCEPT_EULA=Y apt-get install -y msodbcsql17; \
+    # Create a writable place for Chroma persistence
+    mkdir -p /data/chroma; \
     rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
+
+# (Optional but helpful) make sure pip is recent and faster
+RUN python -m pip install --upgrade pip
+
 COPY requirements.txt /app/
 RUN pip install --no-cache-dir -r requirements.txt
+
+# Your code
 COPY . /app
 
 EXPOSE 7860
+
+# Gunicorn entrypoint stays the same
 CMD ["gunicorn","--workers","2","--threads","4","--timeout","120","-b","0.0.0.0:7860","verification:app"]

requirements.txt

@@ -23,6 +23,9 @@ langchain-text-splitters==0.2.2
 sentence-transformers==2.2.2
 pypdf>=4
 tiktoken
+pdf2image==1.17.0
+pytesseract==0.3.10
+Pillow==10.4.0