From b4812066c9d9a97c76983949a46c721d684408c1 Mon Sep 17 00:00:00 2001
From: Tyagiquamar <Tyagiquamar@users.noreply.github.com>
Date: Mon, 12 Oct 2026 18:18:14 +0530
Subject: [PATCH] fix(blueprints): allow underscores in health check hostnames

---
 server/lib/blueprints/types.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/lib/blueprints/types.ts b/server/lib/blueprints/types.ts
index 0a570ca8b..36175e059 100644
--- a/server/lib/blueprints/types.ts
+++ b/server/lib/blueprints/types.ts
@@ -47,7 +47,7 @@ const healthCheckHostnameSchema = z
                 return true;
             }
             const hostnameRegex =
-                /^(?:[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?\.)*[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?$/;
+                /^(?:[a-zA-Z0-9_](?:[a-zA-Z0-9_-]{0,61}[a-zA-Z0-9_])?\.)*[a-zA-Z0-9_](?:[a-zA-Z0-9_-]{0,61}[a-zA-Z0-9_])?$/;
             return hostnameRegex.test(val);
         },
         {