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host_path.go
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host_path.go
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/*
Copyright 2014 Google Inc. 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 host_path
import (
"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
"github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet/volume"
"github.com/GoogleCloudPlatform/kubernetes/pkg/types"
)
// This is the primary entrypoint for volume plugins.
func ProbeVolumePlugins() []volume.Plugin {
return []volume.Plugin{&hostPathPlugin{nil}}
}
type hostPathPlugin struct {
host volume.Host
}
var _ volume.Plugin = &hostPathPlugin{}
const (
hostPathPluginName = "kubernetes.io/host-path"
)
func (plugin *hostPathPlugin) Init(host volume.Host) {
plugin.host = host
}
func (plugin *hostPathPlugin) Name() string {
return hostPathPluginName
}
func (plugin *hostPathPlugin) CanSupport(spec *api.Volume) bool {
if spec.Source.HostPath != nil {
return true
}
return false
}
func (plugin *hostPathPlugin) NewBuilder(spec *api.Volume, podUID types.UID) (volume.Builder, error) {
return &hostPath{spec.Source.HostPath.Path}, nil
}
func (plugin *hostPathPlugin) NewCleaner(volName string, podUID types.UID) (volume.Cleaner, error) {
return &hostPath{""}, nil
}
// HostPath volumes represent a bare host file or directory mount.
// The direct at the specified path will be directly exposed to the container.
type hostPath struct {
path string
}
// SetUp does nothing.
func (hp *hostPath) SetUp() error {
return nil
}
func (hp *hostPath) GetPath() string {
return hp.path
}
// TearDown does nothing.
func (hp *hostPath) TearDown() error {
return nil
}