Add Dockerfile and requirements for FastAPI RAG API

.env

@@ -0,0 +1 @@
+GOOGLE_API_KEY=AIzaSyBOIxwYU-v9UBt87oXASKVU-zw_hsWfFW8

Dockerfile

@@ -1,16 +1,21 @@
-FROM python:3.11.9-slim
+FROM python:3.11-slim
 
+# Install system dependencies
 RUN apt-get update && \
     apt-get install -y tesseract-ocr libtesseract-dev poppler-utils && \
     rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
 
+RUN pip install --no-cache-dir torch --index-url https://download.pytorch.org/whl/cpu
+# Install Python dependencies first (for layer caching)
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
+# Copy application code
 COPY . .
 
 ENV PORT=8000
+ENV PYTHONUNBUFFERED=1
 
 CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]

render.yaml

@@ -7,5 +7,5 @@ services:
     startCommand: uvicorn main:app --host 0.0.0.0 --port 8000
     envVars:
       - key: GOOGLE_API_KEY
-        value: AIzaSyBOIxwYU-v9UBt87oXASKVU-zw_hsWfFW8
+        valueFromEnv: GOOGLE_API_KEY
     plan: free

requirements.txt

@@ -6,8 +6,10 @@ python-multipart
 fastapi
 uvicorn
 google-generativeai
+haystack-ai
+haystack-integrations
 grpcio==1.74.0
 grpcio-tools==1.74.0
 grpcio-status==1.74.0
-protobuf==5.29.5
+protobuf==5.26.1
 rpds.py==0.27.0