Support custom config for image transformer

pkg/transformers/config/defaultconfig/images.go

@@ -0,0 +1,31 @@
+/*
+Copyright 2019 The Kubernetes 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 defaultconfig
+
+const (
+	imagesFieldSpecs = `
+images:
+- kind: Pod
+  path: spec/initContainers
+- kind: Pod
+  path: spec/containers
+- kind: Deployment
+  path: spec/template/spec/initContainers
+- kind: Deployment
+  path: spec/template/spec/containers
+`
+)