Add definition for restart_nginx used by callback

basic/srv/spotter/appmgr/__init__.py

@@ -250,7 +250,7 @@ class AppMgr:
             self.update_proxy_conf(app, tools.NULL_IP)
         # Restart nginx to properly bind the new listen port
         if restart_nginx:
-            tools.restart_service('nginx')
+            tools.restart_nginx()
 
     def rebuild_issue(self):
         # Compile the HTTPS host displayed in terminal banner

basic/srv/spotter/appmgr/tools.py

@@ -92,6 +92,9 @@ def restart_service(service):
 def reload_nginx():
     subprocess.run(['/sbin/service', 'nginx', 'reload'])
 
+def restart_nginx():
+    restart_service('nginx')
+
 def get_cert_info():
     data = ssl._ssl._test_decode_cert('/etc/ssl/certs/services.pem')
     data['subject'] = dict(data['subject'][i][0] for i in range(len(data['subject'])))