From 831de8fa36cbc8889dacd007c0793ca23bba0a55 Mon Sep 17 00:00:00 2001
From: kahirokunn <okinakahiro@gmail.com>
Date: Wed, 8 May 2024 10:07:26 +0900
Subject: [PATCH] feat: enable specifying harbor as remote domain in
 REGISTRY_PROXY_REMOTEDOMAIN
 https://github.com/distribution/distribution/discussions/4340

Signed-off-by: kahirokunn <okinakahiro@gmail.com>
---
 registry/proxy/proxyregistry.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/registry/proxy/proxyregistry.go b/registry/proxy/proxyregistry.go
index 33dcc4afa..c5c2954ca 100644
--- a/registry/proxy/proxyregistry.go
+++ b/registry/proxy/proxyregistry.go
@@ -239,7 +239,9 @@ func (r *remoteAuthChallenger) tryEstablishChallenges(ctx context.Context) error
 	defer r.Unlock()
 
 	remoteURL := r.remoteURL
-	remoteURL.Path = "/v2/"
+	if remoteURL.Path == "" || remoteURL.Path == "/" {
+		remoteURL.Path = "/v2/"
+	}
 	challenges, err := r.cm.GetChallenges(remoteURL)
 	if err != nil {
 		return err