diff --git a/run.sh b/run.sh
index c95e7d3..5658b60 100644
--- a/run.sh
+++ b/run.sh
@@ -3,5 +3,4 @@
 docker-compose down
 docker-compose rm
 docker container rm swarmlabmongo1 swarmlabmongo2 swarmlabmongo3
-chmod 400 ./.docker/mongodb/file.key
 docker-compose up -d
diff --git a/swarmlabconfig/instance b/swarmlabconfig/instance
new file mode 100644
index 0000000..877538a
--- /dev/null
+++ b/swarmlabconfig/instance
@@ -0,0 +1 @@
+swarmlabmongo1
diff --git a/swarmlabconfig/sudorun b/swarmlabconfig/sudorun
new file mode 100644
index 0000000..3d7e894
--- /dev/null
+++ b/swarmlabconfig/sudorun
@@ -0,0 +1,3 @@
+openssl rand -base64 700 > .docker/mongodb/file.key
+chmod 400 .docker/mongodb/file.key
+sudo chown 999:999 .docker/mongodb/file.key