diff --git a/hosts b/hosts
index e17e1a4..2447e00 100644
--- a/hosts
+++ b/hosts
@@ -1,6 +1,8 @@
+---
 all:
-    hosts:
-        116.203.200.219:
-    vars:
-        ansible_user: "root"
-        ansible_ssh_pass: "4Oa;Db5c!"
+  hosts:
+    116.203.200.219:
+  vars:
+    ansible_user: "root"
+    # ansible_ssh_pass: "4Oa;Db5c!"
+    ansible_ssh_private_key_file: "~/.ssh/id_rsa"