Merge pull request #84 from nokia/parser

added parser interface

krm-functions/lib/parser/parser.go

@@ -0,0 +1,27 @@
+/*
+Copyright 2023 The Nephio Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package parser
+
+import (
+	"github.com/GoogleContainerTools/kpt-functions-sdk/go/fn"
+)
+
+type Parser interface {
+	// ParseKubeObject returns a fn sdk KubeObject; if something failed an error
+	// is returned
+	ParseKubeObject() (*fn.KubeObject, error)
+}