diff --git a/.gitignore b/.gitignore
index c5a7289d2..19035c59b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,7 +14,8 @@ build
 /docker/runtime
 /docker/db
 /docker/elasticsearch/data/nodes
-/docker/opensearch/data/nodes
+/docker/opensearch/data/nodes/*
+!/docker/opensearch/data/nodes/README
 /docker/acme.sh
 /docker/nginx/conf.d
 /docker/nginx/vhost.d