set custom manifest config media type

Signed-off-by: Josh Dolitsky <jdolitsky@gmail.com>

Gopkg.lock

@@ -242,7 +242,7 @@
   version = "v1.1.1"
 
 [[projects]]
-  digest = "1:32b33e550e9fba29158153b1881dd46b86593e045564746dcb56557b9061668f"
+  digest = "1:5bed34759ca1dd43ff92383caedd16f006d3b6c4b73c7690a24ae0a5627294fa"
   name = "github.com/deislabs/oras"
   packages = [
     "pkg/auth",
@@ -252,8 +252,8 @@
     "pkg/oras",
   ]
   pruneopts = "UT"
-  revision = "9f7669048990b0d0c186985737e6a6c3bb3f7ecc"
-  version = "v0.4.0"
+  revision = "b3b6ce7eeb31a5c0d891d33f585c84ae3dcc9046"
+  version = "v0.5.0"
 
 [[projects]]
   digest = "1:76dc72490af7174349349838f2fe118996381b31ea83243812a97e5a0fd5ed55"
@@ -264,17 +264,17 @@
   version = "v3.2.0"
 
 [[projects]]
-  digest = "1:f65090e4f60dcd4d2de69e8ebca022d59a8c6463a3a4c122e64cec91a83749ff"
+  digest = "1:238ba9f81f5f913de38bd4c5dab90c4b5eea90a5ee32a986e5416267adec4f67"
   name = "github.com/docker/cli"
   packages = [
     "cli/config",
     "cli/config/configfile",
     "cli/config/credentials",
-    "opts",
+    "cli/config/types",
   ]
   pruneopts = "UT"
-  revision = "c89750f836c57ce10386e71669e1b08a54c3caeb"
-  version = "v18.09.5"
+  revision = "f28d9cc92972044feb72ab6833699102992d40a2"
+  version = "v19.03.0-beta3"
 
 [[projects]]
   digest = "1:feaf11ab67fe48ec2712bf9d44e2fb2d4ebdc5da8e5a47bd3ce05bae9f82825b"

Gopkg.toml

@@ -44,7 +44,7 @@
 
 [[constraint]]
   name = "github.com/deislabs/oras"
-  version = "0.4.0"
+  version = "0.5.0"
 
 [[constraint]]
   name = "github.com/sirupsen/logrus"

pkg/registry/cache.go

@@ -110,7 +110,7 @@ func (cache *filesystemCache) ChartToLayers(ch *chart.Chart) ([]ocispec.Descript
 	if err != nil {
 		return nil, err
 	}
-	metaLayer := cache.store.Add(HelmChartMetaFileName, HelmChartMetaMediaType, metaJSONRaw)
+	metaLayer := cache.store.Add(HelmChartMetaFileName, HelmChartMetaLayerMediaType, metaJSONRaw)
 
 	// Create content layer
 	// TODO: something better than this hack. Currently needed for chartutil.Save()
@@ -131,7 +131,7 @@ func (cache *filesystemCache) ChartToLayers(ch *chart.Chart) ([]ocispec.Descript
 	if err != nil {
 		return nil, err
 	}
-	contentLayer := cache.store.Add(HelmChartContentFileName, HelmChartContentMediaType, contentRaw)
+	contentLayer := cache.store.Add(HelmChartContentFileName, HelmChartContentLayerMediaType, contentRaw)
 
 	// Set annotations
 	contentLayer.Annotations[HelmChartNameAnnotation] = name
@@ -149,14 +149,14 @@ func (cache *filesystemCache) LoadReference(ref *Reference) ([]ocispec.Descripto
 	if err != nil {
 		return nil, err
 	}
-	metaLayer := cache.store.Add(HelmChartMetaFileName, HelmChartMetaMediaType, metaJSONRaw)
+	metaLayer := cache.store.Add(HelmChartMetaFileName, HelmChartMetaLayerMediaType, metaJSONRaw)
 
 	// add content layer
 	contentRaw, err := getSymlinkDestContent(filepath.Join(tagDir, "content"))
 	if err != nil {
 		return nil, err
 	}
-	contentLayer := cache.store.Add(HelmChartContentFileName, HelmChartContentMediaType, contentRaw)
+	contentLayer := cache.store.Add(HelmChartContentFileName, HelmChartContentLayerMediaType, contentRaw)
 
 	// set annotations on content layer (chart name and version)
 	err = setLayerAnnotationsFromChartLink(contentLayer, filepath.Join(tagDir, "chart"))
@@ -329,9 +329,9 @@ func extractLayers(layers []ocispec.Descriptor) (ocispec.Descriptor, ocispec.Des
 
 	for _, layer := range layers {
 		switch layer.MediaType {
-		case HelmChartMetaMediaType:
+		case HelmChartMetaLayerMediaType:
 			metaLayer = layer
-		case HelmChartContentMediaType:
+		case HelmChartContentLayerMediaType:
 			contentLayer = layer
 		}
 	}

pkg/registry/client.go

@@ -97,7 +97,8 @@ func (c *Client) PushChart(ref *Reference) error {
 	if err != nil {
 		return err
 	}
-	_, err = oras.Push(c.newContext(), c.resolver, ref.String(), c.cache.store, layers)
+	_, err = oras.Push(c.newContext(), c.resolver, ref.String(), c.cache.store, layers,
+		oras.WithConfigMediaType(HelmChartConfigMediaType))
 	if err != nil {
 		return err
 	}

pkg/registry/constants.go

@@ -20,11 +20,14 @@ const (
 	// HelmChartDefaultTag is the default tag used when storing a chart reference with no tag
 	HelmChartDefaultTag = "latest"
 
-	// HelmChartMetaMediaType is the reserved media type for Helm chart metadata
-	HelmChartMetaMediaType = "application/vnd.cncf.helm.chart.meta.v1+json"
+	// HelmChartConfigMediaType is the reserved media type for the Helm chart manifest config
+	HelmChartConfigMediaType = "application/vnd.cncf.helm.chart.config.v3+json"
 
-	// HelmChartContentMediaType is the reserved media type for Helm chart package content
-	HelmChartContentMediaType = "application/vnd.cncf.helm.chart.content.v1+tar"
+	// HelmChartMetaLayerMediaType is the reserved media type for Helm chart metadata
+	HelmChartMetaLayerMediaType = "application/vnd.cncf.helm.chart.meta.layer.v3+json"
+
+	// HelmChartContentLayerMediaType is the reserved media type for Helm chart package content
+	HelmChartContentLayerMediaType = "application/vnd.cncf.helm.chart.content.layer.v3+tar"
 
 	// HelmChartMetaFileName is the reserved file name for Helm chart metadata
 	HelmChartMetaFileName = "chart-meta.json"
@@ -42,7 +45,7 @@ const (
 // KnownMediaTypes returns a list of layer mediaTypes that the Helm client knows about
 func KnownMediaTypes() []string {
 	return []string{
-		HelmChartMetaMediaType,
-		HelmChartContentMediaType,
+		HelmChartMetaLayerMediaType,
+		HelmChartContentLayerMediaType,
 	}
 }

pkg/registry/constants_test.go

@@ -24,6 +24,6 @@ import (
 
 func TestConstants(t *testing.T) {
 	knownMediaTypes := KnownMediaTypes()
-	assert.Contains(t, knownMediaTypes, HelmChartMetaMediaType)
-	assert.Contains(t, knownMediaTypes, HelmChartContentMediaType)
+	assert.Contains(t, knownMediaTypes, HelmChartMetaLayerMediaType)
+	assert.Contains(t, knownMediaTypes, HelmChartContentLayerMediaType)
 }