mirror of https://github.com/k3s-io/k3s
91 lines
3.3 KiB
Go
91 lines
3.3 KiB
Go
/*
|
|
Copyright 2014 The Kubernetes Authors All rights reserved.
|
|
|
|
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 clientcmd
|
|
|
|
import (
|
|
"io"
|
|
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
|
|
clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
|
|
)
|
|
|
|
// DeferredLoadingClientConfig is a ClientConfig interface that is backed by a set of loading rules
|
|
// It is used in cases where the loading rules may change after you've instantiated them and you want to be sure that
|
|
// the most recent rules are used. This is useful in cases where you bind flags to loading rule parameters before
|
|
// the parse happens and you want your calling code to be ignorant of how the values are being mutated to avoid
|
|
// passing extraneous information down a call stack
|
|
type DeferredLoadingClientConfig struct {
|
|
loadingRules *ClientConfigLoadingRules
|
|
overrides *ConfigOverrides
|
|
fallbackReader io.Reader
|
|
}
|
|
|
|
// NewNonInteractiveDeferredLoadingClientConfig creates a ConfigClientClientConfig using the passed context name
|
|
func NewNonInteractiveDeferredLoadingClientConfig(loadingRules *ClientConfigLoadingRules, overrides *ConfigOverrides) ClientConfig {
|
|
return DeferredLoadingClientConfig{loadingRules, overrides, nil}
|
|
}
|
|
|
|
// NewInteractiveDeferredLoadingClientConfig creates a ConfigClientClientConfig using the passed context name and the fallback auth reader
|
|
func NewInteractiveDeferredLoadingClientConfig(loadingRules *ClientConfigLoadingRules, overrides *ConfigOverrides, fallbackReader io.Reader) ClientConfig {
|
|
return DeferredLoadingClientConfig{loadingRules, overrides, fallbackReader}
|
|
}
|
|
|
|
func (config DeferredLoadingClientConfig) createClientConfig() (ClientConfig, error) {
|
|
mergedConfig, err := config.loadingRules.Load()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var mergedClientConfig ClientConfig
|
|
if config.fallbackReader != nil {
|
|
mergedClientConfig = NewInteractiveClientConfig(*mergedConfig, config.overrides.CurrentContext, config.overrides, config.fallbackReader)
|
|
} else {
|
|
mergedClientConfig = NewNonInteractiveClientConfig(*mergedConfig, config.overrides.CurrentContext, config.overrides)
|
|
}
|
|
|
|
return mergedClientConfig, nil
|
|
}
|
|
|
|
func (config DeferredLoadingClientConfig) RawConfig() (clientcmdapi.Config, error) {
|
|
mergedConfig, err := config.createClientConfig()
|
|
if err != nil {
|
|
return clientcmdapi.Config{}, err
|
|
}
|
|
|
|
return mergedConfig.RawConfig()
|
|
}
|
|
|
|
// ClientConfig implements ClientConfig
|
|
func (config DeferredLoadingClientConfig) ClientConfig() (*client.Config, error) {
|
|
mergedClientConfig, err := config.createClientConfig()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return mergedClientConfig.ClientConfig()
|
|
}
|
|
|
|
// Namespace implements KubeConfig
|
|
func (config DeferredLoadingClientConfig) Namespace() (string, error) {
|
|
mergedKubeConfig, err := config.createClientConfig()
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
return mergedKubeConfig.Namespace()
|
|
}
|