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			72 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			72 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| /*
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| Copyright 2018 The Kubernetes Authors.
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| 
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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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| 
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|     http://www.apache.org/licenses/LICENSE-2.0
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| 
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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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| 
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| package flexvolume
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| 
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| import (
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| 	"fmt"
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| 	"strconv"
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| 
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| 	"k8s.io/apimachinery/pkg/api/resource"
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| 	"k8s.io/kubernetes/pkg/volume"
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| )
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| 
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| func (plugin *flexVolumePlugin) ExpandVolumeDevice(spec *volume.Spec, newSize resource.Quantity, oldSize resource.Quantity) (resource.Quantity, error) {
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| 	call := plugin.NewDriverCall(expandVolumeCmd)
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| 	call.AppendSpec(spec, plugin.host, nil)
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| 
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| 	devicePath, err := plugin.getDeviceMountPath(spec)
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| 	if err != nil {
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| 		return newSize, err
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| 	}
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| 	call.Append(devicePath)
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| 	call.Append(strconv.FormatInt(newSize.Value(), 10))
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| 	call.Append(strconv.FormatInt(oldSize.Value(), 10))
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| 
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| 	_, err = call.Run()
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| 	if isCmdNotSupportedErr(err) {
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| 		return newExpanderDefaults(plugin).ExpandVolumeDevice(spec, newSize, oldSize)
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| 	}
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| 	return newSize, err
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| }
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| 
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| func (plugin *flexVolumePlugin) NodeExpand(rsOpt volume.NodeResizeOptions) (bool, error) {
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| 	// This method is called after we spec.PersistentVolume.Spec.Capacity
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| 	// has been updated to the new size. The underlying driver thus sees
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| 	// the _new_ (requested) size and can find out the _current_ size from
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| 	// its underlying storage implementation
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| 
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| 	if rsOpt.VolumeSpec.PersistentVolume == nil {
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| 		return false, fmt.Errorf("PersistentVolume not found for spec: %s", rsOpt.VolumeSpec.Name())
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| 	}
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| 
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| 	call := plugin.NewDriverCall(expandFSCmd)
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| 	call.AppendSpec(rsOpt.VolumeSpec, plugin.host, nil)
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| 	call.Append(rsOpt.DevicePath)
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| 	call.Append(rsOpt.DeviceMountPath)
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| 	call.Append(strconv.FormatInt(rsOpt.NewSize.Value(), 10))
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| 	call.Append(strconv.FormatInt(rsOpt.OldSize.Value(), 10))
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| 
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| 	_, err := call.Run()
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| 	if isCmdNotSupportedErr(err) {
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| 		return newExpanderDefaults(plugin).NodeExpand(rsOpt)
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| 	}
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| 	if err != nil {
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| 		return false, err
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| 	}
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| 	return true, nil
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| }
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