attempt to decode OSCP template

decode.go

package template

import (
	"github.com/pkg/errors"
	kapi "k8s.io/kubernetes/pkg/api"
	kapi1 "k8s.io/kubernetes/pkg/api/v1"
	"k8s.io/kubernetes/pkg/runtime"

	"io/ioutil"

	"fmt"

	buildconfig "github.com/openshift/origin/pkg/build/api"
	buildconfig1 "github.com/openshift/origin/pkg/build/api/v1"
	dc "github.com/openshift/origin/pkg/deploy/api"
	dcv1 "github.com/openshift/origin/pkg/deploy/api/v1"
	ioapi "github.com/openshift/origin/pkg/image/api"
	ioapi1 "github.com/openshift/origin/pkg/image/api/v1"
	roapi "github.com/openshift/origin/pkg/route/api"
	roapi1 "github.com/openshift/origin/pkg/route/api/v1"
	template "github.com/openshift/origin/pkg/template/api"
	template1 "github.com/openshift/origin/pkg/template/api/v1"
)

func init() {
	template.AddToScheme(kapi.Scheme)
	template1.AddToScheme(kapi.Scheme)
	kapi1.AddToScheme(kapi.Scheme)
	buildconfig.AddToScheme(kapi.Scheme)
	buildconfig1.AddToScheme(kapi.Scheme)
	dc.AddToScheme(kapi.Scheme)
	dcv1.AddToScheme(kapi.Scheme)
	roapi.AddToScheme(kapi.Scheme)
	roapi1.AddToScheme(kapi.Scheme)
	ioapi.AddToScheme(kapi.Scheme)
	ioapi1.AddToScheme(kapi.Scheme)
}

type Parser struct {
}

func (p *Parser) ParseOpenShiftTemplate(templatePath string) (*template.Template, error) {
	// we care about services, deployments, routes, volumes
	data, err := ioutil.ReadFile(templatePath)
	if err != nil {
		return nil, errors.Wrap(err, " failed to read template file ")
	}
	dec := kapi.Codecs.UniversalDecoder()
	obj, _, err := dec.Decode(data, nil, nil)
	if err != nil {
		return nil, errors.Wrap(err, "failed to decode template ")
	}
	tmpl, ok := obj.(*template.Template)
	if !ok {
		return nil, fmt.Errorf("top level object must be of kind Template")
	}
	fmt.Println(len(tmpl.Objects))
	errs := runtime.DecodeList(tmpl.Objects, dec)
	fmt.Println(len(tmpl.Objects))
	if len(errs) > 0 {
		return nil, errs[0]
	}
	return tmpl, err
}