updated health

Dockerfile

@@ -1,6 +1,9 @@
 # Use Python base image
 FROM python:3.10
 
+# Install curl for health checks
+RUN apt-get update && apt-get install -y --no-install-recommends curl && rm -rf /var/lib/apt/lists/*
+
 # Create user (required for HF Spaces)
 RUN useradd -m user
 USER user
@@ -18,7 +21,19 @@ RUN pip install --no-cache-dir -r requirements.txt
 EXPOSE 8000
 EXPOSE 8501
 
-# Start FastAPI in background + Streamlit in foreground
+# Start FastAPI in background, wait for health, then start Streamlit
 CMD uvicorn api:app --host 0.0.0.0 --port 8000 & \
-    streamlit run app_api.py --server.port 8501 --server.address 0.0.0.0
-
+    for i in $(seq 1 30); do \
+      STATUS=$(curl -s -o /dev/null -w "%{http_code}" http://localhost:8000/health || true); \
+      if [ "$STATUS" = "200" ]; then \
+        echo "API health check passed"; \
+        break; \
+      fi; \
+      echo "Waiting for API to be healthy... attempt $i"; \
+      sleep 1; \
+    done; \
+    if [ "$STATUS" != "200" ]; then \
+      echo "API failed health check, not starting Streamlit"; \
+      exit 1; \
+    fi; \
+    streamlit run app_api.py --server.port 8501 --server.address 0.0.0.0