Add APIs for computing status based on fetching resource info from a

cluster

kstatus/wait/util.go

@@ -0,0 +1,28 @@
+package wait
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+)
+
+// keyFromResourceIdentifier creates a resourceKey from a ResourceIdentifier.
+func keyFromResourceIdentifier(i ResourceIdentifier) resourceKey {
+	return resourceKey{
+		apiVersion: i.GetAPIVersion(),
+		kind:       i.GetKind(),
+		name:       i.GetName(),
+		namespace:  i.GetNamespace(),
+	}
+}
+
+// keyFromObject creates a resourceKey from an Object.
+func keyFromObject(obj runtime.Object) resourceKey {
+	gvk := obj.GetObjectKind().GroupVersionKind()
+	r := obj.(metav1.Object)
+	return resourceKey{
+		apiVersion: gvk.GroupVersion().String(),
+		kind:       gvk.Kind,
+		name:       r.GetName(),
+		namespace:  r.GetNamespace(),
+	}
+}