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delete_volume.go
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delete_volume.go
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/**
* Copyright 2020 IBM Corp.
*
* 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 provider ...
package provider
import (
"time"
"github.com/IBM/ibmcloud-volume-interface/lib/metrics"
"github.com/IBM/ibmcloud-volume-interface/lib/provider"
userError "github.com/IBM/ibmcloud-volume-vpc/common/messages"
"github.com/IBM/ibmcloud-volume-vpc/common/vpcclient/models"
"go.uber.org/zap"
)
// DeleteVolume deletes the volume
func (vpcs *VPCSession) DeleteVolume(volume *provider.Volume) (err error) {
vpcs.Logger.Debug("Entry of DeleteVolume method...")
defer vpcs.Logger.Debug("Exit from DeleteVolume method...")
defer metrics.UpdateDurationFromStart(vpcs.Logger, "DeleteVolume", time.Now())
vpcs.Logger.Info("Validating basic inputs for DeleteVolume method...", zap.Reflect("VolumeDetails", volume))
err = validateVolume(volume)
if err != nil {
return err
}
vpcs.Logger.Info("Deleting volume from VPC provider...")
err = retry(vpcs.Logger, func() error {
err = vpcs.Apiclient.VolumeService().DeleteVolume(volume.VolumeID, vpcs.Logger)
return err
})
if err != nil {
return userError.GetUserError("failedToDeleteVolume", err, volume.VolumeID)
}
err = WaitForVolumeDeletion(vpcs, volume.VolumeID)
if err != nil {
return userError.GetUserError("failedToDeleteVolume", err, volume.VolumeID)
}
vpcs.Logger.Info("Successfully deleted volume from VPC provider")
return err
}
// validateVolume validating volume ID
func validateVolume(volume *provider.Volume) (err error) {
if volume == nil {
err = userError.GetUserError("InvalidVolumeID", nil, nil)
return
}
if IsValidVolumeIDFormat(volume.VolumeID) {
return nil
}
err = userError.GetUserError("InvalidVolumeID", nil, volume.VolumeID)
return
}
// WaitForVolumeDeletion checks the volume for valid status
func WaitForVolumeDeletion(vpcs *VPCSession, volumeID string) (err error) {
vpcs.Logger.Debug("Entry of WaitForVolumeDeletion method...")
defer vpcs.Logger.Debug("Exit from WaitForVolumeDeletion method...")
var skip = false
vpcs.Logger.Info("Getting volume details from VPC provider...", zap.Reflect("VolumeID", volumeID))
err = vpcs.APIRetry.FlexyRetry(vpcs.Logger, func() (error, bool) {
_, err = vpcs.Apiclient.VolumeService().GetVolume(volumeID, vpcs.Logger)
// Keep retry, until GetVolume returns volume not found
if err != nil {
skip = skipRetry(err.(*models.Error))
return nil, skip
}
return err, false // continue retry as we are not seeing error which means volume is available
})
if err == nil && skip {
vpcs.Logger.Info("Volume got deleted.", zap.Reflect("volumeID", volumeID))
}
return err
}