Adding support for image registry proxies

ducc/cmd/root.go

@@ -24,6 +24,7 @@ var rootCmd = &cobra.Command{
 	Short: "Show the several commands available.",
 	PersistentPreRun: func(cmd *cobra.Command, args []string) {
 		lib.SetupNotification()
+		lib.SetupRegistries()
 	},
 	Run: func(cmd *cobra.Command, args []string) {
 		cmd.Help()

ducc/docker-api/util.go

@@ -27,6 +27,23 @@ type Manifest struct {
 	Layers        []Layer
 }
 
+type ManifestList struct {
+	SchemaVersion int
+	MediaType     string
+	Manifests     []ManifestListItem
+}
+
+type ManifestListItem struct {
+	MediaType string
+	Size      int
+	Digest    string
+	Platform  struct {
+		Architecture string
+		OS           string
+		Variant      *string
+	}
+}
+
 type ThinImageLayer struct {
 	Digest string `json:"digest"`
 	Url    string `json:"url,omitempty"`

ducc/lib/conversion.go

@@ -318,11 +318,11 @@ func convertInputOutput(inputImage *Image, repo string, convertAgain, forceDownl
 	}
 	manifestPath := filepath.Join("/", "cvmfs", repo, ".metadata", inputImage.GetSimpleName(), "manifest.json")
 	alreadyConverted := AlreadyConverted(manifestPath, manifest.Config.Digest)
-	l.Log().WithFields(log.Fields{"alreadyConverted": alreadyConverted}).Info(
-		"Already converted the image, skipping.")
 
 	if alreadyConverted == ConversionMatch {
-		if convertAgain == false {
+		if !convertAgain {
+			l.Log().WithFields(log.Fields{"alreadyConverted": alreadyConverted}).Info(
+				"Already converted the image, skipping.")
 			return nil
 		}
 	}