mirror of https://github.com/k3s-io/k3s
106 lines
4.8 KiB
Go
106 lines
4.8 KiB
Go
// +build !providerless
|
|
|
|
/*
|
|
Copyright 2019 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 app
|
|
|
|
import (
|
|
"k8s.io/component-base/featuregate"
|
|
"k8s.io/csi-translation-lib/plugins"
|
|
"k8s.io/klog/v2"
|
|
"k8s.io/kubernetes/pkg/features"
|
|
"k8s.io/kubernetes/pkg/volume"
|
|
"k8s.io/kubernetes/pkg/volume/awsebs"
|
|
"k8s.io/kubernetes/pkg/volume/azure_file"
|
|
"k8s.io/kubernetes/pkg/volume/azuredd"
|
|
"k8s.io/kubernetes/pkg/volume/cinder"
|
|
"k8s.io/kubernetes/pkg/volume/csimigration"
|
|
"k8s.io/kubernetes/pkg/volume/gcepd"
|
|
"k8s.io/kubernetes/pkg/volume/vsphere_volume"
|
|
)
|
|
|
|
type probeFn func() []volume.VolumePlugin
|
|
|
|
func appendPluginBasedOnFeatureFlags(plugins []volume.VolumePlugin, inTreePluginName string, featureGate featuregate.FeatureGate, pluginInfo pluginInfo) ([]volume.VolumePlugin, error) {
|
|
|
|
_, err := csimigration.CheckMigrationFeatureFlags(featureGate, pluginInfo.pluginMigrationFeature, pluginInfo.pluginUnregisterFeature)
|
|
if err != nil {
|
|
klog.Warningf("Unexpected CSI Migration Feature Flags combination detected: %v. CSI Migration may not take effect", err)
|
|
// TODO: fail and return here once alpha only tests can set the feature flags for a plugin correctly
|
|
}
|
|
|
|
// Skip appending the in-tree plugin to the list of plugins to be probed/initialized
|
|
// if the plugin unregister feature flag is set
|
|
if featureGate.Enabled(pluginInfo.pluginUnregisterFeature) {
|
|
klog.Infof("Skip registration of plugin %s since feature flag %v is enabled", inTreePluginName, pluginInfo.pluginUnregisterFeature)
|
|
return plugins, nil
|
|
}
|
|
plugins = append(plugins, pluginInfo.pluginProbeFunction()...)
|
|
return plugins, nil
|
|
}
|
|
|
|
type pluginInfo struct {
|
|
pluginMigrationFeature featuregate.Feature
|
|
pluginUnregisterFeature featuregate.Feature
|
|
pluginProbeFunction probeFn
|
|
}
|
|
|
|
func appendAttachableLegacyProviderVolumes(allPlugins []volume.VolumePlugin, featureGate featuregate.FeatureGate) ([]volume.VolumePlugin, error) {
|
|
pluginMigrationStatus := make(map[string]pluginInfo)
|
|
pluginMigrationStatus[plugins.AWSEBSInTreePluginName] = pluginInfo{pluginMigrationFeature: features.CSIMigrationAWS, pluginUnregisterFeature: features.InTreePluginAWSUnregister, pluginProbeFunction: awsebs.ProbeVolumePlugins}
|
|
pluginMigrationStatus[plugins.GCEPDInTreePluginName] = pluginInfo{pluginMigrationFeature: features.CSIMigrationGCE, pluginUnregisterFeature: features.InTreePluginGCEUnregister, pluginProbeFunction: gcepd.ProbeVolumePlugins}
|
|
pluginMigrationStatus[plugins.CinderInTreePluginName] = pluginInfo{pluginMigrationFeature: features.CSIMigrationOpenStack, pluginUnregisterFeature: features.InTreePluginOpenStackUnregister, pluginProbeFunction: cinder.ProbeVolumePlugins}
|
|
pluginMigrationStatus[plugins.AzureDiskInTreePluginName] = pluginInfo{pluginMigrationFeature: features.CSIMigrationAzureDisk, pluginUnregisterFeature: features.InTreePluginAzureDiskUnregister, pluginProbeFunction: azuredd.ProbeVolumePlugins}
|
|
pluginMigrationStatus[plugins.VSphereInTreePluginName] = pluginInfo{pluginMigrationFeature: features.CSIMigrationvSphere, pluginUnregisterFeature: features.InTreePluginvSphereUnregister, pluginProbeFunction: vsphere_volume.ProbeVolumePlugins}
|
|
|
|
var err error
|
|
for pluginName, pluginInfo := range pluginMigrationStatus {
|
|
allPlugins, err = appendPluginBasedOnFeatureFlags(allPlugins, pluginName, featureGate, pluginInfo)
|
|
if err != nil {
|
|
return allPlugins, err
|
|
}
|
|
}
|
|
return allPlugins, nil
|
|
}
|
|
|
|
func appendExpandableLegacyProviderVolumes(allPlugins []volume.VolumePlugin, featureGate featuregate.FeatureGate) ([]volume.VolumePlugin, error) {
|
|
return appendLegacyProviderVolumes(allPlugins, featureGate)
|
|
}
|
|
|
|
func appendLegacyProviderVolumes(allPlugins []volume.VolumePlugin, featureGate featuregate.FeatureGate) ([]volume.VolumePlugin, error) {
|
|
var err error
|
|
// First append attachable volumes
|
|
allPlugins, err = appendAttachableLegacyProviderVolumes(allPlugins, featureGate)
|
|
if err != nil {
|
|
return allPlugins, err
|
|
}
|
|
|
|
// Then append non-attachable volumes
|
|
pluginName := plugins.AzureFileInTreePluginName
|
|
pluginInfo := pluginInfo{
|
|
pluginMigrationFeature: features.CSIMigrationAzureFile,
|
|
pluginUnregisterFeature: features.InTreePluginAzureFileUnregister,
|
|
pluginProbeFunction: azure_file.ProbeVolumePlugins,
|
|
}
|
|
allPlugins, err = appendPluginBasedOnFeatureFlags(allPlugins, pluginName, featureGate, pluginInfo)
|
|
if err != nil {
|
|
return allPlugins, err
|
|
}
|
|
|
|
return allPlugins, nil
|
|
}
|