From ec778d94b52a1b68e23d8c85ad4c2089bbf849d2 Mon Sep 17 00:00:00 2001 From: Nicola Sella Date: Thu, 15 May 2025 17:22:14 +0200 Subject: [PATCH] compat: GET /_ping return Builder-Version: 1 Signed-off-by: Nicola Sella --- pkg/api/handlers/compat/ping.go | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/pkg/api/handlers/compat/ping.go b/pkg/api/handlers/compat/ping.go index 2601788143..82b2fb2b5e 100644 --- a/pkg/api/handlers/compat/ping.go +++ b/pkg/api/handlers/compat/ping.go @@ -18,7 +18,8 @@ import ( func Ping(w http.ResponseWriter, r *http.Request) { // Note: API-Version and Libpod-API-Version are set in handler_api.go w.Header().Set("BuildKit-Version", "") - w.Header().Set("Builder-Version", "") + // Docker uses Builder-Version 1 for classic builder and 2 for BuildKit + w.Header().Set("Builder-Version", "1") w.Header().Set("Docker-Experimental", "true") w.Header().Set("Cache-Control", "no-cache") w.Header().Set("OSType", runtime.GOOS)