Add retry

tests/test_app.py

@@ -1,3 +1,4 @@
+from time import time
 from typing import Dict
 
 import pytest
@@ -32,7 +33,16 @@
 )
 def test_url(url: str, params: Dict[str, str], timeout: int) -> None:
     """Tests that some URL didn't return an error."""
-    response = requests.get(url, params=params, verify=False, timeout=timeout)  # nosec
+    code = 503
+    count = 0
+    while code == 503 and count < 5:
+        response = requests.get(url, params=params, verify=False, timeout=timeout)
+        code = response.status_code
+        count += 1
+        if code == 503:
+            print(f"Retry {count} for {url}")
+            time.sleep(1)
+
     assert response.status_code == 200, response.text