Fix adding labels and annotations to a resource that didn't have any

kubernetes/patch_operations.go

@@ -12,6 +12,15 @@ func diffStringMap(pathPrefix string, oldV, newV map[string]interface{}) PatchOp
 
 	pathPrefix = strings.TrimRight(pathPrefix, "/")
 
+	// If old value was empty, just create the object
+	if len(oldV) == 0 {
+		ops = append(ops, &AddOperation{
+			Path:  pathPrefix,
+			Value: newV,
+		})
+		return ops
+	}
+
 	// This is suboptimal for adding whole new map from scratch
 	// or deleting the whole map, but it's actually intention.
 	// There may be some other map items managed outside of TF

kubernetes/patch_operations_test.go

@@ -103,12 +103,11 @@ func TestDiffStringMap(t *testing.T) {
 			},
 			ExpectedOps: []PatchOperation{
 				&AddOperation{
-					Path:  "/parent/one",
-					Value: "111",
-				},
-				&AddOperation{
-					Path:  "/parent/two",
-					Value: "222",
+					Path: "/parent",
+					Value: map[string]interface{}{
+						"one": "111",
+						"two": "222",
+					},
 				},
 			},
 		},