Merge pull request #12381 from flouthoc/build-layer-docker-compat

compat: add layer caching compatiblity for `non-podman` clients.

pkg/api/handlers/compat/images_build.go

@@ -134,6 +134,15 @@ func BuildImage(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	// if layers field not set assume its not from a valid podman-client
+	// could be a docker client, set `layers=true` since that is the default
+	// expected behviour
+	if !utils.IsLibpodRequest(r) {
+		if _, found := r.URL.Query()["layers"]; !found {
+			query.Layers = true
+		}
+	}
+
 	// convert addcaps formats
 	var addCaps = []string{}
 	if _, found := r.URL.Query()["addcaps"]; found {

pkg/api/server/register_images.go

@@ -1523,6 +1523,13 @@ func (s *APIServer) registerImagesHandlers(r *mux.Router) error {
 	//      JSON map of key, value pairs to set as labels on the new image
 	//      (As of version 1.xx)
 	//  - in: query
+	//    name: layers
+	//    type: boolean
+	//    default: true
+	//    description: |
+	//      Cache intermediate layers during build.
+	//      (As of version 1.xx)
+	//  - in: query
 	//    name: networkmode
 	//    type: string
 	//    default: bridge