From 1618b49d5b01aa3a84d948f28f7f796cb6fa1909 Mon Sep 17 00:00:00 2001
From: Stephen J Day <stephen.day@docker.com>
Date: Mon, 21 Aug 2017 15:04:31 -0700
Subject: [PATCH] registry/handlers: ignore notfound on storage driver
 healthcheck

Signed-off-by: Stephen J Day <stephen.day@docker.com>
---
 registry/handlers/app.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/registry/handlers/app.go b/registry/handlers/app.go
index 813bae16..e38050cb 100644
--- a/registry/handlers/app.go
+++ b/registry/handlers/app.go
@@ -346,7 +346,10 @@ func (app *App) RegisterHealthChecks(healthRegistries ...*health.Registry) {
 
 		storageDriverCheck := func() error {
 			_, err := app.driver.Stat(app, "/") // "/" should always exist
-			return err                          // any error will be treated as failure
+			if _, ok := err.(storagedriver.PathNotFoundError); ok {
+				err = nil // pass this through, backend is responding, but this path doesn't exist.
+			}
+			return err
 		}
 
 		if app.Config.Health.StorageDriver.Threshold != 0 {