Kubernetes GV convert

convret-gv.go

package main

import (
	"os"

	networkingv1beta1 "k8s.io/api/networking/v1beta1"
	"k8s.io/apimachinery/pkg/runtime/serializer/json"
	"k8s.io/client-go/kubernetes/scheme"
)

func main() {
	decode := scheme.Codecs.UniversalDeserializer().Decode
	yaml := `
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: foo
  namespace: bar
spec:
  rules:
  - host: fuga.example.com
    http:
      paths:
      - backend:
          serviceName: fuga-api
          servicePort: 8080
`
	obj, _, err := decode([]byte(yaml), nil, nil)
	if err != nil {
		panic(err)
	}

	ingress := new(networkingv1beta1.Ingress)
	err = scheme.Scheme.Convert(obj, ingress, nil)
	if err != nil {
		panic(err)
	}

	encoder := json.NewSerializer(json.DefaultMetaFactory, scheme.Scheme, scheme.Scheme, false)
	encoder.Encode(ingress, os.Stdout)
}