download with retry

server/download.go

@@ -89,17 +89,12 @@ func (b *blobDownload) Prepare(ctx context.Context, requestURL *url.URL, opts *R
 	}
 
 	if len(b.Parts) == 0 {
-		resp, err := makeRequest(ctx, http.MethodHead, requestURL, nil, nil, opts)
+		resp, err := makeRequestWithRetry(ctx, http.MethodHead, requestURL, nil, nil, opts)
 		if err != nil {
 			return err
 		}
 		defer resp.Body.Close()
 
-		if resp.StatusCode >= http.StatusBadRequest {
-			body, _ := io.ReadAll(resp.Body)
-			return fmt.Errorf("registry responded with code %d: %v", resp.StatusCode, string(body))
-		}
-
 		b.Total, _ = strconv.ParseInt(resp.Header.Get("Content-Length"), 10, 64)
 
 		var size = b.Total / numDownloadParts
@@ -199,7 +194,7 @@ func (b *blobDownload) run(ctx context.Context, requestURL *url.URL, opts *Regis
 func (b *blobDownload) downloadChunk(ctx context.Context, requestURL *url.URL, w io.Writer, part *blobDownloadPart, opts *RegistryOptions) error {
 	headers := make(http.Header)
 	headers.Set("Range", fmt.Sprintf("bytes=%d-%d", part.StartsAt(), part.StopsAt()-1))
-	resp, err := makeRequest(ctx, http.MethodGet, requestURL, headers, nil, opts)
+	resp, err := makeRequestWithRetry(ctx, http.MethodGet, requestURL, headers, nil, opts)
 	if err != nil {
 		return err
 	}

server/images.go

@@ -1120,22 +1120,12 @@ func pullModelManifest(ctx context.Context, mp ModelPath, regOpts *RegistryOptio
 
 	headers := make(http.Header)
 	headers.Set("Accept", "application/vnd.docker.distribution.manifest.v2+json")
-	resp, err := makeRequest(ctx, http.MethodGet, requestURL, headers, nil, regOpts)
+	resp, err := makeRequestWithRetry(ctx, http.MethodGet, requestURL, headers, nil, regOpts)
 	if err != nil {
-		log.Printf("couldn't get manifest: %v", err)
 		return nil, err
 	}
 	defer resp.Body.Close()
 
-	if resp.StatusCode >= http.StatusBadRequest {
-		if resp.StatusCode == http.StatusNotFound {
-			return nil, fmt.Errorf("model not found")
-		}
-
-		body, _ := io.ReadAll(resp.Body)
-		return nil, fmt.Errorf("on pull registry responded with code %d: %s", resp.StatusCode, body)
-	}
-
 	var m *ManifestV2
 	if err := json.NewDecoder(resp.Body).Decode(&m); err != nil {
 		return nil, err