| /* |
| Copyright 2018 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 flexvolume |
| |
| import ( |
| "fmt" |
| "k8s.io/apimachinery/pkg/api/resource" |
| "k8s.io/kubernetes/pkg/volume" |
| "strconv" |
| ) |
| |
| func (plugin *flexVolumePlugin) ExpandVolumeDevice(spec *volume.Spec, newSize resource.Quantity, oldSize resource.Quantity) (resource.Quantity, error) { |
| call := plugin.NewDriverCall(expandVolumeCmd) |
| call.AppendSpec(spec, plugin.host, nil) |
| |
| devicePath, err := plugin.getDeviceMountPath(spec) |
| if err != nil { |
| return newSize, err |
| } |
| call.Append(devicePath) |
| call.Append(strconv.FormatInt(newSize.Value(), 10)) |
| call.Append(strconv.FormatInt(oldSize.Value(), 10)) |
| |
| _, err = call.Run() |
| if isCmdNotSupportedErr(err) { |
| return newExpanderDefaults(plugin).ExpandVolumeDevice(spec, newSize, oldSize) |
| } |
| return newSize, err |
| } |
| |
| func (plugin *flexVolumePlugin) ExpandFS(spec *volume.Spec, devicePath, deviceMountPath string, newSize, oldSize resource.Quantity) error { |
| // This method is called after we spec.PersistentVolume.Spec.Capacity |
| // has been updated to the new size. The underlying driver thus sees |
| // the _new_ (requested) size and can find out the _current_ size from |
| // its underlying storage implementation |
| |
| if spec.PersistentVolume == nil { |
| return fmt.Errorf("PersistentVolume not found for spec: %s", spec.Name()) |
| } |
| |
| call := plugin.NewDriverCall(expandFSCmd) |
| call.AppendSpec(spec, plugin.host, nil) |
| call.Append(devicePath) |
| call.Append(deviceMountPath) |
| call.Append(strconv.FormatInt(newSize.Value(), 10)) |
| call.Append(strconv.FormatInt(oldSize.Value(), 10)) |
| |
| _, err := call.Run() |
| if isCmdNotSupportedErr(err) { |
| return newExpanderDefaults(plugin).ExpandFS(spec, devicePath, deviceMountPath, newSize, oldSize) |
| } |
| return err |
| } |