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master_config.go
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master_config.go
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package componentinstall
import (
"fmt"
"io/ioutil"
"github.com/ghodss/yaml"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/serializer"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
configv1 "github.com/openshift/origin/pkg/cmd/server/apis/config/v1"
)
var (
masterConfigScheme = runtime.NewScheme()
masterConfigDecoder runtime.Decoder
masterConfigEncoder runtime.Encoder
)
func init() {
utilruntime.Must(configv1.InstallLegacy(masterConfigScheme))
// TODO: Remove this when we start generating config.openshift.io/v1 configs
utilruntime.Must(configv1.InstallLegacy(masterConfigScheme))
configCodecfactory := serializer.NewCodecFactory(masterConfigScheme)
masterConfigDecoder = configCodecfactory.UniversalDecoder(configv1.LegacySchemeGroupVersion)
masterConfigEncoder = configCodecfactory.LegacyCodec(configv1.LegacySchemeGroupVersion)
}
func WriteMasterConfig(filename string, config *configv1.MasterConfig) error {
json, err := runtime.Encode(masterConfigEncoder, config)
if err != nil {
return fmt.Errorf("unable to encode master config: %v", err)
}
yamlBytes, err := yaml.JSONToYAML(json)
if err != nil {
return err
}
return ioutil.WriteFile(filename, yamlBytes, 0644)
}
func ReadMasterConfig(filename string) (*configv1.MasterConfig, error) {
masterBytes, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
return ReadMasterConfigBytes(masterBytes)
}
func ReadMasterConfigBytes(masterBytes []byte) (*configv1.MasterConfig, error) {
obj, err := runtime.Decode(masterConfigDecoder, masterBytes)
if err != nil {
return nil, err
}
masterConfig, ok := obj.(*configv1.MasterConfig)
if !ok {
return nil, fmt.Errorf("object %T is not MasterConfig", masterConfig)
}
return masterConfig, nil
}