From 3e1ff70d7d92bff016b7ea44a532be39ed0a390f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Markus=20M=C3=A4kel=C3=A4?= <markus456@gmail.com>
Date: Sat, 6 May 2017 10:05:59 +0300
Subject: [PATCH] MXS-1220: Respond with 200 OK to root level requests

If a request to the `/` resource is made, the API responds with an 200
OK. This is done to make it possible to use the HTTP health check
mechanism found in many cloud load balancers.
---
 server/core/admin.cc | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/server/core/admin.cc b/server/core/admin.cc
index 26ae490ea..7f2f4ca11 100644
--- a/server/core/admin.cc
+++ b/server/core/admin.cc
@@ -104,7 +104,12 @@ int Client::process(string url, string method, const char* upload_data, size_t *
     HttpRequest request(m_connection, url, method, json);
     HttpResponse reply(MHD_HTTP_NOT_FOUND);
 
-    if (request.validate_api_version())
+    if (url == "/")
+    {
+        // Respond to pings with 200 OK
+        reply = HttpResponse(MHD_HTTP_OK);
+    }
+    else if (request.validate_api_version())
     {
         reply = resource_handle_request(request);
     }