packer-cn/builder/osc/bsusurrogate/step_snapshop_volumes.go

113 lines
3.1 KiB
Go

package bsusurrogate
import (
"context"
"fmt"
"sync"
"time"
"github.com/antihax/optional"
multierror "github.com/hashicorp/go-multierror"
osccommon "github.com/hashicorp/packer/builder/osc/common"
"github.com/hashicorp/packer/helper/multistep"
"github.com/hashicorp/packer/packer"
"github.com/outscale/osc-sdk-go/osc"
)
// StepSnapshotVolumes creates snapshots of the created volumes.
//
// Produces:
// snapshot_ids map[string]string - IDs of the created snapshots
type StepSnapshotVolumes struct {
LaunchDevices []osc.BlockDeviceMappingVmCreation
snapshotIds map[string]string
}
func (s *StepSnapshotVolumes) snapshotVolume(ctx context.Context, deviceName string, state multistep.StateBag) error {
oscconn := state.Get("osc").(*osc.APIClient)
ui := state.Get("ui").(packer.Ui)
vm := state.Get("vm").(osc.Vm)
var volumeId string
for _, volume := range vm.BlockDeviceMappings {
if volume.DeviceName == deviceName {
volumeId = volume.Bsu.VolumeId
}
}
if volumeId == "" {
return fmt.Errorf("Volume ID for device %s not found", deviceName)
}
ui.Say(fmt.Sprintf("Creating snapshot of EBS Volume %s...", volumeId))
description := fmt.Sprintf("Packer: %s", time.Now().String())
createSnapResp, _, err := oscconn.SnapshotApi.CreateSnapshot(context.Background(), &osc.CreateSnapshotOpts{
CreateSnapshotRequest: optional.NewInterface(osc.CreateSnapshotRequest{
VolumeId: volumeId,
Description: description,
}),
})
if err != nil {
return err
}
// Set the snapshot ID so we can delete it later
s.snapshotIds[deviceName] = createSnapResp.Snapshot.SnapshotId
// Wait for snapshot to be created
err = osccommon.WaitUntilOscSnapshotCompleted(oscconn, createSnapResp.Snapshot.SnapshotId)
return err
}
func (s *StepSnapshotVolumes) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
ui := state.Get("ui").(packer.Ui)
s.snapshotIds = map[string]string{}
var wg sync.WaitGroup
var errs *multierror.Error
for _, device := range s.LaunchDevices {
wg.Add(1)
go func(device osc.BlockDeviceMappingVmCreation) {
defer wg.Done()
if err := s.snapshotVolume(ctx, device.DeviceName, state); err != nil {
errs = multierror.Append(errs, err)
}
}(device)
}
wg.Wait()
if errs != nil {
state.Put("error", errs)
ui.Error(errs.Error())
return multistep.ActionHalt
}
state.Put("snapshot_ids", s.snapshotIds)
return multistep.ActionContinue
}
func (s *StepSnapshotVolumes) Cleanup(state multistep.StateBag) {
if len(s.snapshotIds) == 0 {
return
}
_, cancelled := state.GetOk(multistep.StateCancelled)
_, halted := state.GetOk(multistep.StateHalted)
if cancelled || halted {
oscconn := state.Get("osc").(*osc.APIClient)
ui := state.Get("ui").(packer.Ui)
ui.Say("Removing snapshots since we cancelled or halted...")
for _, snapshotID := range s.snapshotIds {
_, _, err := oscconn.SnapshotApi.DeleteSnapshot(context.Background(), &osc.DeleteSnapshotOpts{
DeleteSnapshotRequest: optional.NewInterface(osc.DeleteSnapshotRequest{SnapshotId: snapshotID}),
})
if err != nil {
ui.Error(fmt.Sprintf("Error: %s", err))
}
}
}
}