diff options
Diffstat (limited to 'vendor/k8s.io/kubernetes/pkg/cloudprovider/plugins.go')
-rw-r--r-- | vendor/k8s.io/kubernetes/pkg/cloudprovider/plugins.go | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/vendor/k8s.io/kubernetes/pkg/cloudprovider/plugins.go b/vendor/k8s.io/kubernetes/pkg/cloudprovider/plugins.go deleted file mode 100644 index 739c09613..000000000 --- a/vendor/k8s.io/kubernetes/pkg/cloudprovider/plugins.go +++ /dev/null @@ -1,122 +0,0 @@ -/* -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 cloudprovider - -import ( - "fmt" - "io" - "os" - "sync" - - "github.com/golang/glog" -) - -// Factory is a function that returns a cloudprovider.Interface. -// The config parameter provides an io.Reader handler to the factory in -// order to load specific configurations. If no configuration is provided -// the parameter is nil. -type Factory func(config io.Reader) (Interface, error) - -// All registered cloud providers. -var ( - providersMutex sync.Mutex - providers = make(map[string]Factory) -) - -const externalCloudProvider = "external" - -// RegisterCloudProvider registers a cloudprovider.Factory by name. This -// is expected to happen during app startup. -func RegisterCloudProvider(name string, cloud Factory) { - providersMutex.Lock() - defer providersMutex.Unlock() - if _, found := providers[name]; found { - glog.Fatalf("Cloud provider %q was registered twice", name) - } - glog.V(1).Infof("Registered cloud provider %q", name) - providers[name] = cloud -} - -// IsCloudProvider returns true if name corresponds to an already registered -// cloud provider. -func IsCloudProvider(name string) bool { - providersMutex.Lock() - defer providersMutex.Unlock() - _, found := providers[name] - return found -} - -// GetCloudProvider creates an instance of the named cloud provider, or nil if -// the name is unknown. The error return is only used if the named provider -// was known but failed to initialize. The config parameter specifies the -// io.Reader handler of the configuration file for the cloud provider, or nil -// for no configuration. -func GetCloudProvider(name string, config io.Reader) (Interface, error) { - providersMutex.Lock() - defer providersMutex.Unlock() - f, found := providers[name] - if !found { - return nil, nil - } - return f(config) -} - -// Detects if the string is an external cloud provider -func IsExternal(name string) bool { - return name == externalCloudProvider -} - -// InitCloudProvider creates an instance of the named cloud provider. -func InitCloudProvider(name string, configFilePath string) (Interface, error) { - var cloud Interface - var err error - - if name == "" { - glog.Info("No cloud provider specified.") - return nil, nil - } - - if IsExternal(name) { - glog.Info("External cloud provider specified") - return nil, nil - } - - if configFilePath != "" { - var config *os.File - config, err = os.Open(configFilePath) - if err != nil { - glog.Fatalf("Couldn't open cloud provider configuration %s: %#v", - configFilePath, err) - } - - defer config.Close() - cloud, err = GetCloudProvider(name, config) - } else { - // Pass explicit nil so plugins can actually check for nil. See - // "Why is my nil error value not equal to nil?" in golang.org/doc/faq. - cloud, err = GetCloudProvider(name, nil) - } - - if err != nil { - return nil, fmt.Errorf("could not init cloud provider %q: %v", name, err) - } - if cloud == nil { - return nil, fmt.Errorf("unknown cloud provider %q", name) - } - - return cloud, nil -} |