142 lines
4.2 KiB
Go
142 lines
4.2 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package kubelet
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import (
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"fmt"
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"net"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/kubernetes/pkg/api/v1"
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"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
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"k8s.io/kubernetes/pkg/cloudprovider"
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"k8s.io/kubernetes/pkg/kubelet/secret"
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"k8s.io/kubernetes/pkg/util/io"
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"k8s.io/kubernetes/pkg/util/mount"
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"k8s.io/kubernetes/pkg/volume"
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)
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// NewInitializedVolumePluginMgr returns a new instance of
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// volume.VolumePluginMgr initialized with kubelets implementation of the
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// volume.VolumeHost interface.
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//
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// kubelet - used by VolumeHost methods to expose kubelet specific parameters
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// plugins - used to initialize volumePluginMgr
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func NewInitializedVolumePluginMgr(
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kubelet *Kubelet,
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secretManager secret.Manager,
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plugins []volume.VolumePlugin) (*volume.VolumePluginMgr, error) {
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kvh := &kubeletVolumeHost{
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kubelet: kubelet,
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volumePluginMgr: volume.VolumePluginMgr{},
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secretManager: secretManager,
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}
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if err := kvh.volumePluginMgr.InitPlugins(plugins, kvh); err != nil {
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return nil, fmt.Errorf(
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"Could not initialize volume plugins for KubeletVolumePluginMgr: %v",
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err)
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}
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return &kvh.volumePluginMgr, nil
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}
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// Compile-time check to ensure kubeletVolumeHost implements the VolumeHost interface
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var _ volume.VolumeHost = &kubeletVolumeHost{}
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func (kvh *kubeletVolumeHost) GetPluginDir(pluginName string) string {
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return kvh.kubelet.getPluginDir(pluginName)
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}
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type kubeletVolumeHost struct {
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kubelet *Kubelet
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volumePluginMgr volume.VolumePluginMgr
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secretManager secret.Manager
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}
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func (kvh *kubeletVolumeHost) GetPodVolumeDir(podUID types.UID, pluginName string, volumeName string) string {
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return kvh.kubelet.getPodVolumeDir(podUID, pluginName, volumeName)
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}
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func (kvh *kubeletVolumeHost) GetPodPluginDir(podUID types.UID, pluginName string) string {
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return kvh.kubelet.getPodPluginDir(podUID, pluginName)
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}
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func (kvh *kubeletVolumeHost) GetKubeClient() clientset.Interface {
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return kvh.kubelet.kubeClient
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}
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func (kvh *kubeletVolumeHost) NewWrapperMounter(
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volName string,
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spec volume.Spec,
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pod *v1.Pod,
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opts volume.VolumeOptions) (volume.Mounter, error) {
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// The name of wrapper volume is set to "wrapped_{wrapped_volume_name}"
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wrapperVolumeName := "wrapped_" + volName
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if spec.Volume != nil {
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spec.Volume.Name = wrapperVolumeName
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}
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return kvh.kubelet.newVolumeMounterFromPlugins(&spec, pod, opts)
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}
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func (kvh *kubeletVolumeHost) NewWrapperUnmounter(volName string, spec volume.Spec, podUID types.UID) (volume.Unmounter, error) {
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// The name of wrapper volume is set to "wrapped_{wrapped_volume_name}"
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wrapperVolumeName := "wrapped_" + volName
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if spec.Volume != nil {
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spec.Volume.Name = wrapperVolumeName
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}
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plugin, err := kvh.kubelet.volumePluginMgr.FindPluginBySpec(&spec)
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if err != nil {
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return nil, err
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}
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return plugin.NewUnmounter(spec.Name(), podUID)
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}
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func (kvh *kubeletVolumeHost) GetCloudProvider() cloudprovider.Interface {
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return kvh.kubelet.cloud
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}
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func (kvh *kubeletVolumeHost) GetMounter() mount.Interface {
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return kvh.kubelet.mounter
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}
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func (kvh *kubeletVolumeHost) GetWriter() io.Writer {
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return kvh.kubelet.writer
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}
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func (kvh *kubeletVolumeHost) GetHostName() string {
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return kvh.kubelet.hostname
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}
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func (kvh *kubeletVolumeHost) GetHostIP() (net.IP, error) {
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return kvh.kubelet.GetHostIP()
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}
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func (kvh *kubeletVolumeHost) GetNodeAllocatable() (v1.ResourceList, error) {
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node, err := kvh.kubelet.getNodeAnyWay()
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if err != nil {
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return nil, fmt.Errorf("error retrieving node: %v", err)
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}
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return node.Status.Allocatable, nil
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}
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func (kvh *kubeletVolumeHost) GetSecretFunc() func(namespace, name string) (*v1.Secret, error) {
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return kvh.secretManager.GetSecret
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}
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