fix failed tests for fn framework generator

cmd/config/internal/commands/e2e/e2econtainersimplegenerator/main.go

@@ -0,0 +1,71 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"sigs.k8s.io/kustomize/kyaml/fn/framework"
+	"sigs.k8s.io/kustomize/kyaml/fn/framework/command"
+	"sigs.k8s.io/kustomize/kyaml/kio"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+type App struct {
+	Metadata struct {
+		Name string `yaml:"name"`
+	} `yaml:"metadata"`
+	Spec struct {
+		Port int `yaml:"port" json:"port"`
+	} `yaml:"spec" json:"spec"`
+}
+
+func generateService(name string, sourcePort int, targetPort int) (*yaml.RNode, error) {
+	serviceName := name + "-svc"
+	svc, err := yaml.Parse(fmt.Sprintf(`apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: %s
+  name: %s
+spec:
+  selector:
+    app: %s
+  ports:
+  - name: http
+    port: %d
+    protocol: TCP
+    targetPort: %d
+`, name, serviceName, name, sourcePort, targetPort))
+	if err != nil {
+		return nil, fmt.Errorf("failed to generate resource: %w", err)
+	}
+	return svc, nil
+}
+
+func main() {
+	config := new(App)
+	fn := func(items []*yaml.RNode) ([]*yaml.RNode, error) {
+		var newNodes []*yaml.RNode
+		resourceName := config.Metadata.Name
+		for range items {
+			// generate Service
+			service, err := generateService(resourceName, config.Spec.Port, config.Spec.Port)
+			if err != nil {
+				return nil, err
+			}
+			newNodes = append(newNodes, service)
+		}
+		items = newNodes
+
+		return items, nil
+	}
+	p := framework.SimpleProcessor{Config: config, Filter: kio.FilterFunc(fn)}
+	cmd := command.Build(p, command.StandaloneDisabled, false)
+	command.AddGenerateDockerfile(cmd)
+	if err := cmd.Execute(); err != nil {
+		os.Exit(1)
+	}
+}