Manifest List Interface (#191)

Implement image index interface in support of https://github.com/buildpacks/rfcs/blob/main/text/0124-pack-manifest-list-commands.md
and buildpacks/pack#1705

Signed-off-by: Husni Faiz <ahamedhusni73@gmail.com>
Signed-off-by: Juan Bustamante <jbustamante@vmware.com>
Signed-off-by: Natalie Arellano <narellano@vmware.com>
Signed-off-by: Sai Kiran <sai90100msk@gmail.com>
Signed-off-by: Sai Kiran Maggidi <107541780+WYGIN@users.noreply.github.com>
Signed-off-by: WYGIN <sai90100msk@gmail.com>
Signed-off-by: WYGIN <wygininc@gmail.com>

acceptance/reproducibility_test.go

@@ -55,10 +55,10 @@ func testReproducibility(t *testing.T, _ spec.G, it spec.S) {
 	it.Before(func() {
 		dockerClient = h.DockerCli(t)
 
-		daemonInfo, err := dockerClient.Info(context.TODO())
+		daemonInfo, err := dockerClient.ServerVersion(context.TODO())
 		h.AssertNil(t, err)
 
-		daemonOS := daemonInfo.OSType
+		daemonOS := daemonInfo.Os
 
 		runnableBaseImageName = h.RunnableBaseImage(daemonOS)
 		h.PullIfMissing(t, dockerClient, runnableBaseImageName)

cnb_image.go

@@ -162,6 +162,25 @@ func (i *CNBImageCore) OSVersion() (string, error) {
 	return configFile.OSVersion, nil
 }
 
+func (i *CNBImageCore) OSFeatures() ([]string, error) {
+	configFile, err := getConfigFile(i.Image)
+	if err != nil {
+		return nil, err
+	}
+	return configFile.OSFeatures, nil
+}
+
+func (i *CNBImageCore) Annotations() (map[string]string, error) {
+	manifest, err := getManifest(i.Image)
+	if err != nil {
+		return nil, err
+	}
+	if manifest.Annotations == nil {
+		return make(map[string]string), nil
+	}
+	return manifest.Annotations, nil
+}
+
 func (i *CNBImageCore) TopLayer() (string, error) {
 	layers, err := i.Image.Layers()
 	if err != nil {
@@ -202,18 +221,26 @@ func (i *CNBImageCore) WorkingDir() (string, error) {
 }
 
 func (i *CNBImageCore) AnnotateRefName(refName string) error {
+	return i.SetAnnotations(map[string]string{
+		"org.opencontainers.image.ref.name": refName,
+	})
+}
+
+func (i *CNBImageCore) SetAnnotations(annotations map[string]string) error {
 	manifest, err := getManifest(i.Image)
 	if err != nil {
 		return err
 	}
 	if manifest.Annotations == nil {
 		manifest.Annotations = make(map[string]string)
 	}
-	manifest.Annotations["org.opencontainers.image.ref.name"] = refName
+	for k, v := range annotations {
+		manifest.Annotations[k] = v
+	}
 	mutated := mutate.Annotations(i.Image, manifest.Annotations)
 	image, ok := mutated.(v1.Image)
 	if !ok {
-		return fmt.Errorf("failed to add annotation")
+		return fmt.Errorf("failed to add annotations")
 	}
 	i.Image = image
 	return nil
@@ -285,6 +312,12 @@ func (i *CNBImageCore) SetOS(osVal string) error {
 	})
 }
 
+func (i *CNBImageCore) SetOSFeatures(osFeatures []string) error {
+	return i.MutateConfigFile(func(c *v1.ConfigFile) {
+		c.OSFeatures = osFeatures
+	})
+}
+
 // TBD Deprecated: SetOSVersion
 func (i *CNBImageCore) SetOSVersion(osVersion string) error {
 	return i.MutateConfigFile(func(c *v1.ConfigFile) {