feature: bsusurrogate, add stop bsu backed vm step

builder/osc/bsusurrogate/builder.go

@@ -204,6 +204,10 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 		&common.StepCleanupTempKeys{
 			Comm: &b.config.RunConfig.Comm,
 		},
+		&osccommon.StepStopBSUBackedVm{
+			Skip:          false,
+			DisableStopVm: b.config.DisableStopVm,
+		},
 	}
 
 	b.runner = common.NewRunner(steps, b.config.PackerConfig, ui)

builder/osc/common/state.go

@@ -30,6 +30,12 @@ func waitUntilVmDeleted(conn *oapi.Client, vmID string) error {
 	return <-errCh
 }
 
+func waitUntilVmStopped(conn *oapi.Client, vmID string) error {
+	errCh := make(chan error, 1)
+	go waitForState(errCh, "stopped", waitUntilVmStateFunc(conn, vmID))
+	return <-errCh
+}
+
 func waitForState(errCh chan<- error, target string, refresh stateRefreshFunc) error {
 	err := common.Retry(2, 2, 0, func(_ uint) (bool, error) {
 		state, err := refresh()

builder/osc/common/step_stop_bsu_backed_vm.go

@@ -0,0 +1,95 @@
+package common
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/aws/aws-sdk-go/aws/awserr"
+	"github.com/hashicorp/packer/common"
+	"github.com/hashicorp/packer/helper/multistep"
+	"github.com/hashicorp/packer/packer"
+	"github.com/outscale/osc-go/oapi"
+)
+
+type StepStopBSUBackedVm struct {
+	Skip          bool
+	DisableStopVm bool
+}
+
+func (s *StepStopBSUBackedVm) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
+	oapiconn := state.Get("oapi").(*oapi.Client)
+	vm := state.Get("vm").(*oapi.Vm)
+	ui := state.Get("ui").(packer.Ui)
+
+	// Skip when it is a spot vm
+	if s.Skip {
+		return multistep.ActionContinue
+	}
+
+	var err error
+
+	if !s.DisableStopVm {
+		// Stop the vm so we can create an AMI from it
+		ui.Say("Stopping the source vm...")
+
+		// Amazon EC2 API follows an eventual consistency model.
+
+		// This means that if you run a command to modify or describe a resource
+		// that you just created, its ID might not have propagated throughout
+		// the system, and you will get an error responding that the resource
+		// does not exist.
+
+		// Work around this by retrying a few times, up to about 5 minutes.
+		err := common.Retry(10, 60, 6, func(i uint) (bool, error) {
+			ui.Message(fmt.Sprintf("Stopping vm, attempt %d", i+1))
+
+			_, err = oapiconn.POST_StopVms(oapi.StopVmsRequest{
+				VmIds: []string{vm.VmId},
+			})
+
+			if err == nil {
+				// success
+				return true, nil
+			}
+
+			if awsErr, ok := err.(awserr.Error); ok {
+				if awsErr.Code() == "InvalidVmID.NotFound" {
+					ui.Message(fmt.Sprintf(
+						"Error stopping vm; will retry ..."+
+							"Error: %s", err))
+					// retry
+					return false, nil
+				}
+			}
+			// errored, but not in expected way. Don't want to retry
+			return true, err
+		})
+
+		if err != nil {
+			err := fmt.Errorf("Error stopping vm: %s", err)
+			state.Put("error", err)
+			ui.Error(err.Error())
+			return multistep.ActionHalt
+		}
+
+	} else {
+		ui.Say("Automatic vm stop disabled. Please stop vm manually.")
+	}
+
+	// Wait for the vm to actually stop
+	ui.Say("Waiting for the vm to stop...")
+	err = waitUntilVmStopped(oapiconn, vm.VmId)
+
+	if err != nil {
+		err := fmt.Errorf("Error waiting for vm to stop: %s", err)
+		state.Put("error", err)
+		ui.Error(err.Error())
+		return multistep.ActionHalt
+	}
+
+	return multistep.ActionContinue
+}
+
+func (s *StepStopBSUBackedVm) Cleanup(multistep.StateBag) {
+	// No cleanup...
+}