Update 'app.py'

app.py

@@ -76,6 +76,16 @@ def main():
 
         logging.debug('Waiting for next turn')
         # wait for the next update time
+        
+        if current_ip != socket.gethostbyname(host_name):
+        	current_ip = socket.gethostbyname(host_name)
+           	keys = redis.keys('producer_*')
+            for key in keys:
+                ip = redis.get(key)
+                if not ip:
+                    continue
+                response = requests.post(f"http://{ip}/ip", json={'uuid': os.environ['LOCAL_UUID'], 'ip': current_ip})
+                logging.debug(response.status_code)
         time.sleep(30)