Merge pull request #167 from imeoer/nydus-with-referrer

nydus: support with_referrer option

misc/config/config.nydus.ref.yaml

@@ -51,6 +51,13 @@ converter:
 
       # convert to OCI-referenced nydus zran image.
       oci_ref: true
+
+      # with this option, we can track all nydus images associated with
+      # an OCI image. For example, in Harbor we can cascade to show nydus
+      # images linked to an OCI image, deleting the OCI image can also delete
+      # the corresponding nydus images. At runtime, nydus snapshotter can also
+      # automatically upgrade an OCI image run to nydus image.
+      with_referrer: true
   rules:
     # add suffix to tag of source image reference as target image reference
     - tag_suffix: -nydus-oci-ref

misc/config/config.nydus.yaml

@@ -52,6 +52,13 @@ converter:
       # convert to OCI-referenced nydus zran image.
       # oci_ref: false
 
+      # with this option, we can track all nydus images associated with
+      # an OCI image. For example, in Harbor we can cascade to show nydus
+      # images linked to an OCI image, deleting the OCI image can also delete
+      # the corresponding nydus images. At runtime, nydus snapshotter can also
+      # automatically upgrade an OCI image run to nydus image.
+      with_referrer: true
+
       # specify nydus format version, possible values: `5`, `6` (EROFS-compatible), default is `6`
       # fs_version: 6
 

pkg/driver/nydus/nydus.go

@@ -78,6 +78,7 @@ type Driver struct {
 	backend           backend.Backend
 	platformMC        platforms.MatchComparer
 	encryptRecipients []string
+	withReferrer      bool
 }
 
 func detectBuilderVersion(ctx context.Context, builder string) string {
@@ -175,6 +176,11 @@ func New(cfg map[string]string, platformMC platforms.MatchComparer) (*Driver, er
 		return nil, errors.Wrap(err, "invalid oci_ref option")
 	}
 
+	withReferrer, err := parseBool(cfg["with_referrer"])
+	if err != nil {
+		return nil, errors.Wrap(err, "invalid with_referrer option")
+	}
+
 	encryptRecipients := []string{}
 	if cfg["encrypt_recipients"] != "" {
 		encryptRecipients = strings.Split(cfg["encrypt_recipients"], ",")
@@ -201,6 +207,7 @@ func New(cfg map[string]string, platformMC platforms.MatchComparer) (*Driver, er
 		backend:           _backend,
 		platformMC:        platformMC,
 		encryptRecipients: encryptRecipients,
+		withReferrer:      withReferrer,
 	}, nil
 }
 
@@ -263,6 +270,7 @@ func (d *Driver) convert(ctx context.Context, provider accelcontent.Provider, so
 		OCI:               d.docker2oci,
 		OCIRef:            packOpt.OCIRef,
 		EncryptRecipients: d.encryptRecipients,
+		WithReferrer:      d.withReferrer,
 	}
 	convertHookFunc := func(
 		ctx context.Context, cs content.Store, orgDesc ocispec.Descriptor, newDesc *ocispec.Descriptor,