Update prod deployment config

backend/Dockerfile.prod

@@ -14,4 +14,6 @@ RUN pip install -r requirements.txt
 
 COPY . .
 
+RUN flask db stamp head
 RUN flask db migrate
+RUN flask db upgrade

docker-compose.prod.yaml

@@ -34,7 +34,7 @@ services:
 #    depends_on:
 #      - nginx_server
     ports:
-      - "9998:80"
+      - "80:80"
 
 volumes:
   db_data:

frontend/nginx.conf

@@ -1,3 +1,7 @@
+upstream web_app {
+    server backend_service:5000;
+}
+
 server {
     listen 80;
 
@@ -6,4 +10,11 @@ server {
         index index.html index.htm;
         try_files $uri $uri/ /index.html =404;
     }
+
+    location ~ /api/ {
+        proxy_pass http://web_app;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header Host $host;
+        proxy_redirect off;
+    }
 }