packer-cn/builder/osc/chroot/step_link_volume.go

97 lines
2.4 KiB
Go

package chroot
import (
"context"
"fmt"
osccommon "github.com/hashicorp/packer/builder/osc/common"
"github.com/hashicorp/packer/helper/multistep"
"github.com/hashicorp/packer/packer"
"github.com/outscale/osc-go/oapi"
)
// StepLinkVolume attaches the previously created volume to an
// available device location.
//
// Produces:
// device string - The location where the volume was attached.
// attach_cleanup CleanupFunc
type StepLinkVolume struct {
attached bool
volumeId string
}
func (s *StepLinkVolume) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
oapiconn := state.Get("oapi").(*oapi.Client)
device := state.Get("device").(string)
vm := state.Get("vm").(oapi.Vm)
ui := state.Get("ui").(packer.Ui)
volumeId := state.Get("volume_id").(string)
// For the API call, it expects "sd" prefixed devices.
//linkVolume := strings.Replace(device, "/xvd", "/sd", 1)
linkVolume := device
ui.Say(fmt.Sprintf("Attaching the root volume to %s", linkVolume))
_, err := oapiconn.POST_LinkVolume(oapi.LinkVolumeRequest{
VmId: vm.VmId,
VolumeId: volumeId,
DeviceName: linkVolume,
})
if err != nil {
err := fmt.Errorf("Error attaching volume: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
// Mark that we attached it so we can detach it later
s.attached = true
s.volumeId = volumeId
// Wait for the volume to become attached
err = osccommon.WaitUntilVolumeIsLinked(oapiconn, s.volumeId)
if err != nil {
err := fmt.Errorf("Error waiting for volume: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
state.Put("attach_cleanup", s)
return multistep.ActionContinue
}
func (s *StepLinkVolume) Cleanup(state multistep.StateBag) {
ui := state.Get("ui").(packer.Ui)
if err := s.CleanupFunc(state); err != nil {
ui.Error(err.Error())
}
}
func (s *StepLinkVolume) CleanupFunc(state multistep.StateBag) error {
if !s.attached {
return nil
}
oapiconn := state.Get("oapi").(*oapi.Client)
ui := state.Get("ui").(packer.Ui)
ui.Say("Detaching BSU volume...")
_, err := oapiconn.POST_UnlinkVolume(oapi.UnlinkVolumeRequest{VolumeId: s.volumeId})
if err != nil {
return fmt.Errorf("Error detaching BSU volume: %s", err)
}
s.attached = false
// Wait for the volume to detach
err = osccommon.WaitUntilVolumeIsUnlinked(oapiconn, s.volumeId)
if err != nil {
return fmt.Errorf("Error waiting for volume: %s", err)
}
return nil
}