kubernetes/pkg/credentialprovider/plugins.go
Davanum Srinivas 954996e231
Move from glog to klog
- Move from the old github.com/golang/glog to k8s.io/klog
- klog as explicit InitFlags() so we add them as necessary
- we update the other repositories that we vendor that made a similar
change from glog to klog
  * github.com/kubernetes/repo-infra
  * k8s.io/gengo/
  * k8s.io/kube-openapi/
  * github.com/google/cadvisor
- Entirely remove all references to glog
- Fix some tests by explicit InitFlags in their init() methods

Change-Id: I92db545ff36fcec83afe98f550c9e630098b3135
2018-11-10 07:50:31 -05:00

71 lines
2.0 KiB
Go

/*
Copyright 2014 The Kubernetes Authors.
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 credentialprovider
import (
"reflect"
"sort"
"sync"
"k8s.io/klog"
)
// All registered credential providers.
var providersMutex sync.Mutex
var providers = make(map[string]DockerConfigProvider)
// RegisterCredentialProvider is called by provider implementations on
// initialization to register themselves, like so:
// func init() {
// RegisterCredentialProvider("name", &myProvider{...})
// }
func RegisterCredentialProvider(name string, provider DockerConfigProvider) {
providersMutex.Lock()
defer providersMutex.Unlock()
_, found := providers[name]
if found {
klog.Fatalf("Credential provider %q was registered twice", name)
}
klog.V(4).Infof("Registered credential provider %q", name)
providers[name] = provider
}
// NewDockerKeyring creates a DockerKeyring to use for resolving credentials,
// which lazily draws from the set of registered credential providers.
func NewDockerKeyring() DockerKeyring {
keyring := &lazyDockerKeyring{
Providers: make([]DockerConfigProvider, 0),
}
keys := reflect.ValueOf(providers).MapKeys()
stringKeys := make([]string, len(keys))
for ix := range keys {
stringKeys[ix] = keys[ix].String()
}
sort.Strings(stringKeys)
for _, key := range stringKeys {
provider := providers[key]
if provider.Enabled() {
klog.V(4).Infof("Registering credential provider: %v", key)
keyring.Providers = append(keyring.Providers, provider)
}
}
return keyring
}