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