diff --git a/.gitmodules b/.gitmodules
index f35a792..3bdfc8c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,3 +13,6 @@
 [submodule "deep2-client"]
 	path = deep2-client
 	url = https://github.com/OPSILab/deep2-client
+[submodule "wait-for-it"]
+	path = wait-for-it
+	url = https://github.com/vishnubob/wait-for-it.git
diff --git a/wait-for-it b/wait-for-it
new file mode 160000
index 0000000..81b1373
--- /dev/null
+++ b/wait-for-it
@@ -0,0 +1 @@
+Subproject commit 81b1373f17855a4dc21156cfe1694c31d7d1792e