Add Hublink for GitHub Container Registry (#211)

Co-authored-by: CrazyMax <crazy-max@users.noreply.github.com>

pkg/registry/image.go

@@ -119,6 +119,10 @@ func (i Image) hubLink() (string, error) {
 		return fmt.Sprintf("https://github.com/%s/packages", filepath.ToSlash(filepath.Dir(i.Path))), nil
 	case "gcr.io":
 		return fmt.Sprintf("https://%s/%s", i.Domain, i.Path), nil
+	case "ghcr.io":
+		ref := strings.Split(i.Path, "/")
+		ghUser, ghPackage := ref[0], ref[1]
+		return fmt.Sprintf("https://github.com/users/%s/packages/container/package/%s", ghUser, ghPackage), nil
 	case "quay.io":
 		return fmt.Sprintf("https://quay.io/repository/%s", i.Path), nil
 	case "registry.access.redhat.com":

pkg/registry/image_test.go

@@ -101,6 +101,28 @@ func TestParseImage(t *testing.T) {
 				Tag:    "latest",
 			},
 		},
+		{
+			desc: "ghcr ddns-route53",
+			parseOpts: registry.ParseImageOptions{
+				Name: "ghcr.io/crazy-max/ddns-route53",
+			},
+			expected: registry.Image{
+				Domain: "ghcr.io",
+				Path:   "crazy-max/ddns-route53",
+				Tag:    "latest",
+			},
+		},
+		{
+			desc: "ghcr radarr",
+			parseOpts: registry.ParseImageOptions{
+				Name: "ghcr.io/linuxserver/radarr",
+			},
+			expected: registry.Image{
+				Domain: "ghcr.io",
+				Path:   "linuxserver/radarr",
+				Tag:    "latest",
+			},
+		},
 	}
 
 	for _, tt := range testCases {
@@ -185,6 +207,20 @@ func TestHubLink(t *testing.T) {
 			},
 			expected: "https://quay.io/repository/coreos/hyperkube",
 		},
+		{
+			desc: "ghcr ddns-route53",
+			parseOpts: registry.ParseImageOptions{
+				Name: "ghcr.io/crazy-max/ddns-route53",
+			},
+			expected: "https://github.com/users/crazy-max/packages/container/package/ddns-route53",
+		},
+		{
+			desc: "ghcr radarr",
+			parseOpts: registry.ParseImageOptions{
+				Name: "ghcr.io/linuxserver/radarr",
+			},
+			expected: "https://github.com/users/linuxserver/packages/container/package/radarr",
+		},
 		{
 			desc: "redhat etcd",
 			parseOpts: registry.ParseImageOptions{