add forgotten comma

openappstack/cluster.py

@@ -181,7 +181,7 @@ KUBECONFIG={secret_dir}/kube_config_cluster.yml
                 ip_address=self.ip_address,
                 hostname=self.hostname,
                 domain=self.domain,
-                local_flux=self.local_flux
+                local_flux=self.local_flux,
                 secret_dir=self.secret_dir
             ))
             log.info("Created %s", self.dotenv_file)