Merge pull request #13 from StrongMonkey/k8s.20

Add self link

pkg/resources/common/formatter.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/rancher/apiserver/pkg/types"
 	"github.com/rancher/steve/pkg/accesscontrol"
+	"github.com/rancher/steve/pkg/attributes"
 	"github.com/rancher/steve/pkg/schema"
 	"github.com/rancher/steve/pkg/stores/proxy"
 	"github.com/rancher/steve/pkg/summarycache"
@@ -12,7 +13,9 @@ import (
 	"github.com/rancher/wrangler/pkg/slice"
 	"github.com/rancher/wrangler/pkg/summary"
 	"k8s.io/apimachinery/pkg/api/meta"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	schema2 "k8s.io/apimachinery/pkg/runtime/schema"
 )
 
 func DefaultTemplate(clientGetter proxy.ClientGetter,
@@ -24,17 +27,44 @@ func DefaultTemplate(clientGetter proxy.ClientGetter,
 	}
 }
 
+func selfLink(gvr schema2.GroupVersionResource, meta metav1.Object) (prefix string) {
+	buf := &strings.Builder{}
+	if gvr.Group == "" {
+		buf.WriteString("/api/v1/")
+	} else {
+		buf.WriteString("/apis/")
+		buf.WriteString(gvr.Group)
+		buf.WriteString("/")
+		buf.WriteString(gvr.Version)
+		buf.WriteString("/")
+	}
+	if meta.GetNamespace() != "" {
+		buf.WriteString("namespaces/")
+		buf.WriteString(meta.GetNamespace())
+		buf.WriteString("/")
+	}
+	buf.WriteString(gvr.Resource)
+	buf.WriteString("/")
+	buf.WriteString(meta.GetName())
+	return buf.String()
+}
+
 func formatter(summarycache *summarycache.SummaryCache) types.Formatter {
 	return func(request *types.APIRequest, resource *types.RawResource) {
+		if resource.Schema == nil {
+			return
+		}
+
+		gvr := attributes.GVR(resource.Schema)
+		if gvr.Version == "" {
+			return
+		}
+
 		meta, err := meta.Accessor(resource.APIObject.Object)
 		if err != nil {
 			return
 		}
-
-		selfLink := meta.GetSelfLink()
-		if selfLink == "" {
-			return
-		}
+		selfLink := selfLink(gvr, meta)
 
 		u := request.URLBuilder.RelativeToRoot(selfLink)
 		resource.Links["view"] = u