Move building of spot instances into its own step

builder/amazon/common/step_run_source_instance.go

@@ -5,14 +5,10 @@ import (
 	"fmt"
 	"io/ioutil"
 	"log"
-	"strconv"
-	"time"
 
 	"github.com/aws/aws-sdk-go/aws"
-	"github.com/aws/aws-sdk-go/aws/awserr"
 	"github.com/aws/aws-sdk-go/service/ec2"
 
-	retry "github.com/hashicorp/packer/common"
 	"github.com/hashicorp/packer/packer"
 	"github.com/hashicorp/packer/template/interpolate"
 	"github.com/mitchellh/multistep"
@@ -29,8 +25,6 @@ type StepRunSourceInstance struct {
 	InstanceInitiatedShutdownBehavior string
 	InstanceType                      string
 	SourceAMI                         string
-	SpotPrice                         string
-	SpotPriceProduct                  string
 	SubnetId                          string
 	Tags                              map[string]string
 	VolumeTags                        map[string]string
@@ -39,7 +33,6 @@ type StepRunSourceInstance struct {
 	Ctx                               interpolate.Context
 
 	instanceId string
-	spotRequest *ec2.SpotInstanceRequest
 }
 
 func (s *StepRunSourceInstance) Run(state multistep.StateBag) multistep.StepAction {
@@ -84,57 +77,6 @@ func (s *StepRunSourceInstance) Run(state multistep.StateBag) multistep.StepActi
 		return multistep.ActionHalt
 	}
 
-	spotPrice := s.SpotPrice
-	availabilityZone := s.AvailabilityZone
-	if spotPrice == "auto" {
-		ui.Message(fmt.Sprintf(
-			"Finding spot price for %s %s...",
-			s.SpotPriceProduct, s.InstanceType))
-
-		// Detect the spot price
-		startTime := time.Now().Add(-1 * time.Hour)
-		resp, err := ec2conn.DescribeSpotPriceHistory(&ec2.DescribeSpotPriceHistoryInput{
-			InstanceTypes:       []*string{&s.InstanceType},
-			ProductDescriptions: []*string{&s.SpotPriceProduct},
-			AvailabilityZone:    &s.AvailabilityZone,
-			StartTime:           &startTime,
-		})
-		if err != nil {
-			err := fmt.Errorf("Error finding spot price: %s", err)
-			state.Put("error", err)
-			ui.Error(err.Error())
-			return multistep.ActionHalt
-		}
-
-		var price float64
-		for _, history := range resp.SpotPriceHistory {
-			log.Printf("[INFO] Candidate spot price: %s", *history.SpotPrice)
-			current, err := strconv.ParseFloat(*history.SpotPrice, 64)
-			if err != nil {
-				log.Printf("[ERR] Error parsing spot price: %s", err)
-				continue
-			}
-			if price == 0 || current < price {
-				price = current
-				if s.AvailabilityZone == "" {
-					availabilityZone = *history.AvailabilityZone
-				}
-			}
-		}
-		if price == 0 {
-			err := fmt.Errorf("No candidate spot prices found!")
-			state.Put("error", err)
-			ui.Error(err.Error())
-			return multistep.ActionHalt
-		} else {
-			// Add 0.5 cents to minimum spot bid to ensure capacity will be available
-			// Avoids price-too-low error in active markets which can fluctuate
-			price = price + 0.005
-		}
-
-		spotPrice = strconv.FormatFloat(price, 'f', -1, 64)
-	}
-
 	var instanceId string
 
 	ui.Say("Adding tags to source instance")
@@ -142,7 +84,6 @@ func (s *StepRunSourceInstance) Run(state multistep.StateBag) multistep.StepActi
 		s.Tags["Name"] = "Packer Builder"
 	}
 
-	createTagsAfterInstanceStarts := true
 	ec2Tags, err := ConvertToEC2Tags(s.Tags, *ec2conn.Config.Region, s.SourceAMI, s.Ctx)
 	if err != nil {
 		err := fmt.Errorf("Error tagging source instance: %s", err)
@@ -152,7 +93,6 @@ func (s *StepRunSourceInstance) Run(state multistep.StateBag) multistep.StepActi
 	}
 	ReportTags(ui, ec2Tags)
 
-	createVolTagsAfterInstanceStarts := true
 	volTags, err := ConvertToEC2Tags(s.VolumeTags, *ec2conn.Config.Region, s.SourceAMI, s.Ctx)
 	if err != nil {
 		err := fmt.Errorf("Error tagging volumes: %s", err)
@@ -161,8 +101,6 @@ func (s *StepRunSourceInstance) Run(state multistep.StateBag) multistep.StepActi
 		return multistep.ActionHalt
 	}
 
-	if spotPrice == "" || spotPrice == "0" {
-
 	runOpts := &ec2.RunInstancesInput{
 		ImageId:             &s.SourceAMI,
 		InstanceType:        &s.InstanceType,
@@ -184,7 +122,6 @@ func (s *StepRunSourceInstance) Run(state multistep.StateBag) multistep.StepActi
 		}
 
 		tagSpecs = append(tagSpecs, runTags)
-			createTagsAfterInstanceStarts = false
 	}
 
 	if len(volTags) > 0 {
@@ -194,7 +131,6 @@ func (s *StepRunSourceInstance) Run(state multistep.StateBag) multistep.StepActi
 		}
 
 		tagSpecs = append(tagSpecs, runVolTags)
-			createVolTagsAfterInstanceStarts = false
 	}
 
 	if len(tagSpecs) > 0 {
@@ -232,83 +168,6 @@ func (s *StepRunSourceInstance) Run(state multistep.StateBag) multistep.StepActi
 		return multistep.ActionHalt
 	}
 	instanceId = *runResp.Instances[0].InstanceId
-	} else {
-		ui.Message(fmt.Sprintf(
-			"Requesting spot instance '%s' for: %s",
-			s.InstanceType, spotPrice))
-
-		runOpts := &ec2.RequestSpotLaunchSpecification{
-			ImageId:            &s.SourceAMI,
-			InstanceType:       &s.InstanceType,
-			UserData:           &userData,
-			IamInstanceProfile: &ec2.IamInstanceProfileSpecification{Name: &s.IamInstanceProfile},
-			Placement: &ec2.SpotPlacement{
-				AvailabilityZone: &availabilityZone,
-			},
-			BlockDeviceMappings: s.BlockDevices.BuildLaunchDevices(),
-			EbsOptimized:        &s.EbsOptimized,
-		}
-
-		if s.SubnetId != "" && s.AssociatePublicIpAddress {
-			runOpts.NetworkInterfaces = []*ec2.InstanceNetworkInterfaceSpecification{
-				{
-					DeviceIndex:              aws.Int64(0),
-					AssociatePublicIpAddress: &s.AssociatePublicIpAddress,
-					SubnetId:                 &s.SubnetId,
-					Groups:                   securityGroupIds,
-					DeleteOnTermination:      aws.Bool(true),
-				},
-			}
-		} else {
-			runOpts.SubnetId = &s.SubnetId
-			runOpts.SecurityGroupIds = securityGroupIds
-		}
-
-		if keyName != "" {
-			runOpts.KeyName = &keyName
-		}
-
-		runSpotResp, err := ec2conn.RequestSpotInstances(&ec2.RequestSpotInstancesInput{
-			SpotPrice:           &spotPrice,
-			LaunchSpecification: runOpts,
-		})
-		if err != nil {
-			err := fmt.Errorf("Error launching source spot instance: %s", err)
-			state.Put("error", err)
-			ui.Error(err.Error())
-			return multistep.ActionHalt
-		}
-
-		s.spotRequest = runSpotResp.SpotInstanceRequests[0]
-
-		spotRequestId := s.spotRequest.SpotInstanceRequestId
-		ui.Message(fmt.Sprintf("Waiting for spot request (%s) to become active...", *spotRequestId))
-		stateChange := StateChangeConf{
-			Pending:   []string{"open"},
-			Target:    "active",
-			Refresh:   SpotRequestStateRefreshFunc(ec2conn, *spotRequestId),
-			StepState: state,
-		}
-		_, err = WaitForState(&stateChange)
-		if err != nil {
-			err := fmt.Errorf("Error waiting for spot request (%s) to become ready: %s", *spotRequestId, err)
-			state.Put("error", err)
-			ui.Error(err.Error())
-			return multistep.ActionHalt
-		}
-
-		spotResp, err := ec2conn.DescribeSpotInstanceRequests(&ec2.DescribeSpotInstanceRequestsInput{
-			SpotInstanceRequestIds: []*string{spotRequestId},
-		})
-		if err != nil {
-			err := fmt.Errorf("Error finding spot request (%s): %s", *spotRequestId, err)
-			state.Put("error", err)
-			ui.Error(err.Error())
-			return multistep.ActionHalt
-		}
-		instanceId = *spotResp.SpotInstanceRequests[0].InstanceId
-
-	}
 
 	// Set the instance ID so that the cleanup works properly
 	s.instanceId = instanceId
@@ -331,70 +190,6 @@ func (s *StepRunSourceInstance) Run(state multistep.StateBag) multistep.StepActi
 
 	instance := latestInstance.(*ec2.Instance)
 
-	if createTagsAfterInstanceStarts {
-		// Retry creating tags for about 2.5 minutes
-		err = retry.Retry(0.2, 30, 11, func(_ uint) (bool, error) {
-			_, err := ec2conn.CreateTags(&ec2.CreateTagsInput{
-				Tags:      ec2Tags,
-				Resources: []*string{instance.InstanceId},
-			})
-			if err == nil {
-				return true, nil
-			}
-			if awsErr, ok := err.(awserr.Error); ok {
-				if awsErr.Code() == "InvalidInstanceID.NotFound" {
-					return false, nil
-				}
-			}
-			return true, err
-		})
-
-		if err != nil {
-			err := fmt.Errorf("Error tagging source instance: %s", err)
-			state.Put("error", err)
-			ui.Error(err.Error())
-			return multistep.ActionHalt
-		}
-	}
-
-	if createVolTagsAfterInstanceStarts {
-		volumeIds := make([]*string, 0)
-		for _, v := range instance.BlockDeviceMappings {
-			if ebs := v.Ebs; ebs != nil {
-				volumeIds = append(volumeIds, ebs.VolumeId)
-			}
-		}
-
-		if len(volumeIds) > 0 {
-			ui.Say("Adding tags to source EBS Volumes")
-			tags, err := ConvertToEC2Tags(s.VolumeTags, *ec2conn.Config.Region, s.SourceAMI, s.Ctx)
-			if err != nil {
-				err := fmt.Errorf("Error tagging source EBS Volumes on %s: %s", *instance.InstanceId, err)
-				state.Put("error", err)
-				ui.Error(err.Error())
-				return multistep.ActionHalt
-			}
-
-			ReportTags(ui, tags)
-
-			_, err = ec2conn.CreateTags(&ec2.CreateTagsInput{
-				Resources: volumeIds,
-				Tags:      tags,
-			})
-
-			if err != nil {
-				err := fmt.Errorf("Error tagging source EBS Volumes on %s: %s", *instance.InstanceId, err)
-				state.Put("error", err)
-				ui.Error(err.Error())
-				return multistep.ActionHalt
-			}
-
-			return multistep.ActionContinue
-
-		}
-
-	}
-
 	if s.Debug {
 		if instance.PublicDnsName != nil && *instance.PublicDnsName != "" {
 			ui.Message(fmt.Sprintf("Public DNS: %s", *instance.PublicDnsName))
@@ -419,29 +214,6 @@ func (s *StepRunSourceInstance) Cleanup(state multistep.StateBag) {
 	ec2conn := state.Get("ec2").(*ec2.EC2)
 	ui := state.Get("ui").(packer.Ui)
 
-	// Cancel the spot request if it exists
-	if s.spotRequest != nil {
-		ui.Say("Cancelling the spot request...")
-		input := &ec2.CancelSpotInstanceRequestsInput{
-			SpotInstanceRequestIds: []*string{s.spotRequest.SpotInstanceRequestId},
-		}
-		if _, err := ec2conn.CancelSpotInstanceRequests(input); err != nil {
-			ui.Error(fmt.Sprintf("Error cancelling the spot request, may still be around: %s", err))
-			return
-		}
-		stateChange := StateChangeConf{
-			Pending: []string{"active", "open"},
-			Refresh: SpotRequestStateRefreshFunc(ec2conn, *s.spotRequest.SpotInstanceRequestId),
-			Target:  "cancelled",
-		}
-
-		_, err := WaitForState(&stateChange)
-		if err != nil {
-			ui.Error(err.Error())
-		}
-
-	}
-
 	// Terminate the source instance if it exists
 	if s.instanceId != "" {
 		ui.Say("Terminating the source AWS instance...")

builder/amazon/common/step_run_spot_instance.go

@@ -0,0 +1,374 @@
+package common
+
+import (
+	"encoding/base64"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"strconv"
+	"time"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/awserr"
+	"github.com/aws/aws-sdk-go/service/ec2"
+
+	retry "github.com/hashicorp/packer/common"
+	"github.com/hashicorp/packer/packer"
+	"github.com/hashicorp/packer/template/interpolate"
+	"github.com/mitchellh/multistep"
+)
+
+type StepRunSpotInstance struct {
+	AssociatePublicIpAddress          bool
+	AvailabilityZone                  string
+	BlockDevices                      BlockDevices
+	Debug                             bool
+	EbsOptimized                      bool
+	ExpectedRootDevice                string
+	IamInstanceProfile                string
+	InstanceInitiatedShutdownBehavior string
+	InstanceType                      string
+	SourceAMI                         string
+	SpotPrice                         string
+	SpotPriceProduct                  string
+	SubnetId                          string
+	Tags                              map[string]string
+	VolumeTags                        map[string]string
+	UserData                          string
+	UserDataFile                      string
+	Ctx                               interpolate.Context
+
+	instanceId  string
+	spotRequest *ec2.SpotInstanceRequest
+}
+
+func (s *StepRunSpotInstance) Run(state multistep.StateBag) multistep.StepAction {
+	ec2conn := state.Get("ec2").(*ec2.EC2)
+	var keyName string
+	if name, ok := state.GetOk("keyPair"); ok {
+		keyName = name.(string)
+	}
+	securityGroupIds := aws.StringSlice(state.Get("securityGroupIds").([]string))
+	ui := state.Get("ui").(packer.Ui)
+
+	userData := s.UserData
+	if s.UserDataFile != "" {
+		contents, err := ioutil.ReadFile(s.UserDataFile)
+		if err != nil {
+			state.Put("error", fmt.Errorf("Problem reading user data file: %s", err))
+			return multistep.ActionHalt
+		}
+
+		userData = string(contents)
+	}
+
+	// Test if it is encoded already, and if not, encode it
+	if _, err := base64.StdEncoding.DecodeString(userData); err != nil {
+		log.Printf("[DEBUG] base64 encoding user data...")
+		userData = base64.StdEncoding.EncodeToString([]byte(userData))
+	}
+
+	ui.Say("Launching a source AWS instance...")
+	image, ok := state.Get("source_image").(*ec2.Image)
+	if !ok {
+		state.Put("error", fmt.Errorf("source_image type assertion failed"))
+		return multistep.ActionHalt
+	}
+	s.SourceAMI = *image.ImageId
+
+	if s.ExpectedRootDevice != "" && *image.RootDeviceType != s.ExpectedRootDevice {
+		state.Put("error", fmt.Errorf(
+			"The provided source AMI has an invalid root device type.\n"+
+				"Expected '%s', got '%s'.",
+			s.ExpectedRootDevice, *image.RootDeviceType))
+		return multistep.ActionHalt
+	}
+
+	spotPrice := s.SpotPrice
+	availabilityZone := s.AvailabilityZone
+	if spotPrice == "auto" {
+		ui.Message(fmt.Sprintf(
+			"Finding spot price for %s %s...",
+			s.SpotPriceProduct, s.InstanceType))
+
+		// Detect the spot price
+		startTime := time.Now().Add(-1 * time.Hour)
+		resp, err := ec2conn.DescribeSpotPriceHistory(&ec2.DescribeSpotPriceHistoryInput{
+			InstanceTypes:       []*string{&s.InstanceType},
+			ProductDescriptions: []*string{&s.SpotPriceProduct},
+			AvailabilityZone:    &s.AvailabilityZone,
+			StartTime:           &startTime,
+		})
+		if err != nil {
+			err := fmt.Errorf("Error finding spot price: %s", err)
+			state.Put("error", err)
+			ui.Error(err.Error())
+			return multistep.ActionHalt
+		}
+
+		var price float64
+		for _, history := range resp.SpotPriceHistory {
+			log.Printf("[INFO] Candidate spot price: %s", *history.SpotPrice)
+			current, err := strconv.ParseFloat(*history.SpotPrice, 64)
+			if err != nil {
+				log.Printf("[ERR] Error parsing spot price: %s", err)
+				continue
+			}
+			if price == 0 || current < price {
+				price = current
+				if s.AvailabilityZone == "" {
+					availabilityZone = *history.AvailabilityZone
+				}
+			}
+		}
+		if price == 0 {
+			err := fmt.Errorf("No candidate spot prices found!")
+			state.Put("error", err)
+			ui.Error(err.Error())
+			return multistep.ActionHalt
+		} else {
+			// Add 0.5 cents to minimum spot bid to ensure capacity will be available
+			// Avoids price-too-low error in active markets which can fluctuate
+			price = price + 0.005
+		}
+
+		spotPrice = strconv.FormatFloat(price, 'f', -1, 64)
+	}
+
+	var instanceId string
+
+	ui.Say("Adding tags to source instance")
+	if _, exists := s.Tags["Name"]; !exists {
+		s.Tags["Name"] = "Packer Builder"
+	}
+
+	ec2Tags, err := ConvertToEC2Tags(s.Tags, *ec2conn.Config.Region, s.SourceAMI, s.Ctx)
+	if err != nil {
+		err := fmt.Errorf("Error tagging source instance: %s", err)
+		state.Put("error", err)
+		ui.Error(err.Error())
+		return multistep.ActionHalt
+	}
+	ReportTags(ui, ec2Tags)
+
+	ui.Message(fmt.Sprintf(
+		"Requesting spot instance '%s' for: %s",
+		s.InstanceType, spotPrice))
+
+	runOpts := &ec2.RequestSpotLaunchSpecification{
+		ImageId:            &s.SourceAMI,
+		InstanceType:       &s.InstanceType,
+		UserData:           &userData,
+		IamInstanceProfile: &ec2.IamInstanceProfileSpecification{Name: &s.IamInstanceProfile},
+		Placement: &ec2.SpotPlacement{
+			AvailabilityZone: &availabilityZone,
+		},
+		BlockDeviceMappings: s.BlockDevices.BuildLaunchDevices(),
+		EbsOptimized:        &s.EbsOptimized,
+	}
+
+	if s.SubnetId != "" && s.AssociatePublicIpAddress {
+		runOpts.NetworkInterfaces = []*ec2.InstanceNetworkInterfaceSpecification{
+			{
+				DeviceIndex:              aws.Int64(0),
+				AssociatePublicIpAddress: &s.AssociatePublicIpAddress,
+				SubnetId:                 &s.SubnetId,
+				Groups:                   securityGroupIds,
+				DeleteOnTermination:      aws.Bool(true),
+			},
+		}
+	} else {
+		runOpts.SubnetId = &s.SubnetId
+		runOpts.SecurityGroupIds = securityGroupIds
+	}
+
+	if keyName != "" {
+		runOpts.KeyName = &keyName
+	}
+
+	runSpotResp, err := ec2conn.RequestSpotInstances(&ec2.RequestSpotInstancesInput{
+		SpotPrice:           &spotPrice,
+		LaunchSpecification: runOpts,
+	})
+	if err != nil {
+		err := fmt.Errorf("Error launching source spot instance: %s", err)
+		state.Put("error", err)
+		ui.Error(err.Error())
+		return multistep.ActionHalt
+	}
+
+	s.spotRequest = runSpotResp.SpotInstanceRequests[0]
+
+	spotRequestId := s.spotRequest.SpotInstanceRequestId
+	ui.Message(fmt.Sprintf("Waiting for spot request (%s) to become active...", *spotRequestId))
+	stateChange := StateChangeConf{
+		Pending:   []string{"open"},
+		Target:    "active",
+		Refresh:   SpotRequestStateRefreshFunc(ec2conn, *spotRequestId),
+		StepState: state,
+	}
+	_, err = WaitForState(&stateChange)
+	if err != nil {
+		err := fmt.Errorf("Error waiting for spot request (%s) to become ready: %s", *spotRequestId, err)
+		state.Put("error", err)
+		ui.Error(err.Error())
+		return multistep.ActionHalt
+	}
+
+	spotResp, err := ec2conn.DescribeSpotInstanceRequests(&ec2.DescribeSpotInstanceRequestsInput{
+		SpotInstanceRequestIds: []*string{spotRequestId},
+	})
+	if err != nil {
+		err := fmt.Errorf("Error finding spot request (%s): %s", *spotRequestId, err)
+		state.Put("error", err)
+		ui.Error(err.Error())
+		return multistep.ActionHalt
+	}
+	instanceId = *spotResp.SpotInstanceRequests[0].InstanceId
+
+	// Set the instance ID so that the cleanup works properly
+	s.instanceId = instanceId
+
+	ui.Message(fmt.Sprintf("Instance ID: %s", instanceId))
+	ui.Say(fmt.Sprintf("Waiting for instance (%v) to become ready...", instanceId))
+	stateChangeSpot := StateChangeConf{
+		Pending:   []string{"pending"},
+		Target:    "running",
+		Refresh:   InstanceStateRefreshFunc(ec2conn, instanceId),
+		StepState: state,
+	}
+	latestInstance, err := WaitForState(&stateChangeSpot)
+	if err != nil {
+		err := fmt.Errorf("Error waiting for instance (%s) to become ready: %s", instanceId, err)
+		state.Put("error", err)
+		ui.Error(err.Error())
+		return multistep.ActionHalt
+	}
+
+	instance := latestInstance.(*ec2.Instance)
+
+	// Retry creating tags for about 2.5 minutes
+	err = retry.Retry(0.2, 30, 11, func(_ uint) (bool, error) {
+		_, err := ec2conn.CreateTags(&ec2.CreateTagsInput{
+			Tags:      ec2Tags,
+			Resources: []*string{instance.InstanceId},
+		})
+		if err == nil {
+			return true, nil
+		}
+		if awsErr, ok := err.(awserr.Error); ok {
+			if awsErr.Code() == "InvalidInstanceID.NotFound" {
+				return false, nil
+			}
+		}
+		return true, err
+	})
+
+	if err != nil {
+		err := fmt.Errorf("Error tagging source instance: %s", err)
+		state.Put("error", err)
+		ui.Error(err.Error())
+		return multistep.ActionHalt
+	}
+
+	volumeIds := make([]*string, 0)
+	for _, v := range instance.BlockDeviceMappings {
+		if ebs := v.Ebs; ebs != nil {
+			volumeIds = append(volumeIds, ebs.VolumeId)
+		}
+	}
+
+	if len(volumeIds) > 0 {
+		ui.Say("Adding tags to source EBS Volumes")
+		tags, err := ConvertToEC2Tags(s.VolumeTags, *ec2conn.Config.Region, s.SourceAMI, s.Ctx)
+		if err != nil {
+			err := fmt.Errorf("Error tagging source EBS Volumes on %s: %s", *instance.InstanceId, err)
+			state.Put("error", err)
+			ui.Error(err.Error())
+			return multistep.ActionHalt
+		}
+
+		ReportTags(ui, tags)
+
+		_, err = ec2conn.CreateTags(&ec2.CreateTagsInput{
+			Resources: volumeIds,
+			Tags:      tags,
+		})
+
+		if err != nil {
+			err := fmt.Errorf("Error tagging source EBS Volumes on %s: %s", *instance.InstanceId, err)
+			state.Put("error", err)
+			ui.Error(err.Error())
+			return multistep.ActionHalt
+		}
+
+		return multistep.ActionContinue
+
+	}
+
+	if s.Debug {
+		if instance.PublicDnsName != nil && *instance.PublicDnsName != "" {
+			ui.Message(fmt.Sprintf("Public DNS: %s", *instance.PublicDnsName))
+		}
+
+		if instance.PublicIpAddress != nil && *instance.PublicIpAddress != "" {
+			ui.Message(fmt.Sprintf("Public IP: %s", *instance.PublicIpAddress))
+		}
+
+		if instance.PrivateIpAddress != nil && *instance.PrivateIpAddress != "" {
+			ui.Message(fmt.Sprintf("Private IP: %s", *instance.PrivateIpAddress))
+		}
+	}
+
+	state.Put("instance", instance)
+
+	return multistep.ActionContinue
+}
+
+func (s *StepRunSpotInstance) Cleanup(state multistep.StateBag) {
+
+	ec2conn := state.Get("ec2").(*ec2.EC2)
+	ui := state.Get("ui").(packer.Ui)
+
+	// Cancel the spot request if it exists
+	if s.spotRequest != nil {
+		ui.Say("Cancelling the spot request...")
+		input := &ec2.CancelSpotInstanceRequestsInput{
+			SpotInstanceRequestIds: []*string{s.spotRequest.SpotInstanceRequestId},
+		}
+		if _, err := ec2conn.CancelSpotInstanceRequests(input); err != nil {
+			ui.Error(fmt.Sprintf("Error cancelling the spot request, may still be around: %s", err))
+			return
+		}
+		stateChange := StateChangeConf{
+			Pending: []string{"active", "open"},
+			Refresh: SpotRequestStateRefreshFunc(ec2conn, *s.spotRequest.SpotInstanceRequestId),
+			Target:  "cancelled",
+		}
+
+		_, err := WaitForState(&stateChange)
+		if err != nil {
+			ui.Error(err.Error())
+		}
+
+	}
+
+	// Terminate the source instance if it exists
+	if s.instanceId != "" {
+		ui.Say("Terminating the source AWS instance...")
+		if _, err := ec2conn.TerminateInstances(&ec2.TerminateInstancesInput{InstanceIds: []*string{&s.instanceId}}); err != nil {
+			ui.Error(fmt.Sprintf("Error terminating instance, may still be around: %s", err))
+			return
+		}
+		stateChange := StateChangeConf{
+			Pending: []string{"pending", "running", "shutting-down", "stopped", "stopping"},
+			Refresh: InstanceStateRefreshFunc(ec2conn, s.instanceId),
+			Target:  "terminated",
+		}
+
+		_, err := WaitForState(&stateChange)
+		if err != nil {
+			ui.Error(err.Error())
+		}
+	}
+}

builder/amazon/ebs/builder.go

@@ -108,6 +108,50 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 	state.Put("hook", hook)
 	state.Put("ui", ui)
 
+	var instanceStep multistep.Step
+
+	if b.config.SpotPrice == "" || b.config.SpotPrice == "0" {
+		instanceStep = &awscommon.StepRunSpotInstance{
+			Debug:                    b.config.PackerDebug,
+			ExpectedRootDevice:       "ebs",
+			SpotPrice:                b.config.SpotPrice,
+			SpotPriceProduct:         b.config.SpotPriceAutoProduct,
+			InstanceType:             b.config.InstanceType,
+			UserData:                 b.config.UserData,
+			UserDataFile:             b.config.UserDataFile,
+			SourceAMI:                b.config.SourceAmi,
+			IamInstanceProfile:       b.config.IamInstanceProfile,
+			SubnetId:                 b.config.SubnetId,
+			AssociatePublicIpAddress: b.config.AssociatePublicIpAddress,
+			EbsOptimized:             b.config.EbsOptimized,
+			AvailabilityZone:         b.config.AvailabilityZone,
+			BlockDevices:             b.config.BlockDevices,
+			Tags:                     b.config.RunTags,
+			VolumeTags:               b.config.VolumeRunTags,
+			Ctx:                      b.config.ctx,
+			InstanceInitiatedShutdownBehavior: b.config.InstanceInitiatedShutdownBehavior,
+		}
+	} else {
+		instanceStep = &awscommon.StepRunSourceInstance{
+			Debug:                    b.config.PackerDebug,
+			ExpectedRootDevice:       "ebs",
+			InstanceType:             b.config.InstanceType,
+			UserData:                 b.config.UserData,
+			UserDataFile:             b.config.UserDataFile,
+			SourceAMI:                b.config.SourceAmi,
+			IamInstanceProfile:       b.config.IamInstanceProfile,
+			SubnetId:                 b.config.SubnetId,
+			AssociatePublicIpAddress: b.config.AssociatePublicIpAddress,
+			EbsOptimized:             b.config.EbsOptimized,
+			AvailabilityZone:         b.config.AvailabilityZone,
+			BlockDevices:             b.config.BlockDevices,
+			Tags:                     b.config.RunTags,
+			VolumeTags:               b.config.VolumeRunTags,
+			Ctx:                      b.config.ctx,
+			InstanceInitiatedShutdownBehavior: b.config.InstanceInitiatedShutdownBehavior,
+		}
+	}
+
 	// Build the steps
 	steps := []multistep.Step{
 		&awscommon.StepPreValidate{
@@ -136,26 +180,7 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 		&stepCleanupVolumes{
 			BlockDevices: b.config.BlockDevices,
 		},
-		&awscommon.StepRunSourceInstance{
+		instanceStep,
-			Debug:                    b.config.PackerDebug,
-			ExpectedRootDevice:       "ebs",
-			SpotPrice:                b.config.SpotPrice,
-			SpotPriceProduct:         b.config.SpotPriceAutoProduct,
-			InstanceType:             b.config.InstanceType,
-			UserData:                 b.config.UserData,
-			UserDataFile:             b.config.UserDataFile,
-			SourceAMI:                b.config.SourceAmi,
-			IamInstanceProfile:       b.config.IamInstanceProfile,
-			SubnetId:                 b.config.SubnetId,
-			AssociatePublicIpAddress: b.config.AssociatePublicIpAddress,
-			EbsOptimized:             b.config.EbsOptimized,
-			AvailabilityZone:         b.config.AvailabilityZone,
-			BlockDevices:             b.config.BlockDevices,
-			Tags:                     b.config.RunTags,
-			VolumeTags:               b.config.VolumeRunTags,
-			Ctx:                      b.config.ctx,
-			InstanceInitiatedShutdownBehavior: b.config.InstanceInitiatedShutdownBehavior,
-		},
 		&awscommon.StepGetPassword{
 			Debug:   b.config.PackerDebug,
 			Comm:    &b.config.RunConfig.Comm,

builder/amazon/ebssurrogate/builder.go

@@ -122,6 +122,50 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 	state.Put("hook", hook)
 	state.Put("ui", ui)
 
+	var instanceStep multistep.Step
+
+	if b.config.SpotPrice == "" || b.config.SpotPrice == "0" {
+		instanceStep = &awscommon.StepRunSpotInstance{
+			Debug:                    b.config.PackerDebug,
+			ExpectedRootDevice:       "ebs",
+			SpotPrice:                b.config.SpotPrice,
+			SpotPriceProduct:         b.config.SpotPriceAutoProduct,
+			InstanceType:             b.config.InstanceType,
+			UserData:                 b.config.UserData,
+			UserDataFile:             b.config.UserDataFile,
+			SourceAMI:                b.config.SourceAmi,
+			IamInstanceProfile:       b.config.IamInstanceProfile,
+			SubnetId:                 b.config.SubnetId,
+			AssociatePublicIpAddress: b.config.AssociatePublicIpAddress,
+			EbsOptimized:             b.config.EbsOptimized,
+			AvailabilityZone:         b.config.AvailabilityZone,
+			BlockDevices:             b.config.BlockDevices,
+			Tags:                     b.config.RunTags,
+			VolumeTags:               b.config.VolumeRunTags,
+			Ctx:                      b.config.ctx,
+			InstanceInitiatedShutdownBehavior: b.config.InstanceInitiatedShutdownBehavior,
+		}
+	} else {
+		instanceStep = &awscommon.StepRunSourceInstance{
+			Debug:                    b.config.PackerDebug,
+			ExpectedRootDevice:       "ebs",
+			InstanceType:             b.config.InstanceType,
+			UserData:                 b.config.UserData,
+			UserDataFile:             b.config.UserDataFile,
+			SourceAMI:                b.config.SourceAmi,
+			IamInstanceProfile:       b.config.IamInstanceProfile,
+			SubnetId:                 b.config.SubnetId,
+			AssociatePublicIpAddress: b.config.AssociatePublicIpAddress,
+			EbsOptimized:             b.config.EbsOptimized,
+			AvailabilityZone:         b.config.AvailabilityZone,
+			BlockDevices:             b.config.BlockDevices,
+			Tags:                     b.config.RunTags,
+			VolumeTags:               b.config.VolumeRunTags,
+			Ctx:                      b.config.ctx,
+			InstanceInitiatedShutdownBehavior: b.config.InstanceInitiatedShutdownBehavior,
+		}
+	}
+
 	// Build the steps
 	steps := []multistep.Step{
 		&awscommon.StepPreValidate{
@@ -147,24 +191,7 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 			CommConfig:       &b.config.RunConfig.Comm,
 			VpcId:            b.config.VpcId,
 		},
-		&awscommon.StepRunSourceInstance{
+		instanceStep,
-			Debug:                    b.config.PackerDebug,
-			ExpectedRootDevice:       "ebs",
-			SpotPrice:                b.config.SpotPrice,
-			SpotPriceProduct:         b.config.SpotPriceAutoProduct,
-			InstanceType:             b.config.InstanceType,
-			UserData:                 b.config.UserData,
-			UserDataFile:             b.config.UserDataFile,
-			SourceAMI:                b.config.SourceAmi,
-			IamInstanceProfile:       b.config.IamInstanceProfile,
-			SubnetId:                 b.config.SubnetId,
-			AssociatePublicIpAddress: b.config.AssociatePublicIpAddress,
-			EbsOptimized:             b.config.EbsOptimized,
-			AvailabilityZone:         b.config.AvailabilityZone,
-			BlockDevices:             b.config.BlockDevices,
-			Tags:                     b.config.RunTags,
-			InstanceInitiatedShutdownBehavior: b.config.InstanceInitiatedShutdownBehavior,
-		},
 		&awscommon.StepTagEBSVolumes{
 			VolumeRunTags: b.config.VolumeRunTags,
 			Ctx:           b.config.ctx,

builder/amazon/ebsvolume/builder.go

@@ -101,6 +101,46 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 	state.Put("hook", hook)
 	state.Put("ui", ui)
 
+	var instanceStep multistep.Step
+
+	if b.config.SpotPrice == "" || b.config.SpotPrice == "0" {
+		instanceStep = &awscommon.StepRunSpotInstance{
+			Debug:                    b.config.PackerDebug,
+			ExpectedRootDevice:       "ebs",
+			SpotPrice:                b.config.SpotPrice,
+			SpotPriceProduct:         b.config.SpotPriceAutoProduct,
+			InstanceType:             b.config.InstanceType,
+			UserData:                 b.config.UserData,
+			UserDataFile:             b.config.UserDataFile,
+			SourceAMI:                b.config.SourceAmi,
+			IamInstanceProfile:       b.config.IamInstanceProfile,
+			SubnetId:                 b.config.SubnetId,
+			AssociatePublicIpAddress: b.config.AssociatePublicIpAddress,
+			EbsOptimized:             b.config.EbsOptimized,
+			AvailabilityZone:         b.config.AvailabilityZone,
+			Tags:                     b.config.RunTags,
+			Ctx:                      b.config.ctx,
+			InstanceInitiatedShutdownBehavior: b.config.InstanceInitiatedShutdownBehavior,
+		}
+	} else {
+		instanceStep = &awscommon.StepRunSourceInstance{
+			Debug:                    b.config.PackerDebug,
+			ExpectedRootDevice:       "ebs",
+			InstanceType:             b.config.InstanceType,
+			UserData:                 b.config.UserData,
+			UserDataFile:             b.config.UserDataFile,
+			SourceAMI:                b.config.SourceAmi,
+			IamInstanceProfile:       b.config.IamInstanceProfile,
+			SubnetId:                 b.config.SubnetId,
+			AssociatePublicIpAddress: b.config.AssociatePublicIpAddress,
+			EbsOptimized:             b.config.EbsOptimized,
+			AvailabilityZone:         b.config.AvailabilityZone,
+			Tags:                     b.config.RunTags,
+			Ctx:                      b.config.ctx,
+			InstanceInitiatedShutdownBehavior: b.config.InstanceInitiatedShutdownBehavior,
+		}
+	}
+
 	// Build the steps
 	steps := []multistep.Step{
 		&awscommon.StepSourceAMIInfo{
@@ -122,25 +162,7 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 			CommConfig:       &b.config.RunConfig.Comm,
 			VpcId:            b.config.VpcId,
 		},
-		&awscommon.StepRunSourceInstance{
+		instanceStep,
-			Debug:                    b.config.PackerDebug,
-			ExpectedRootDevice:       "ebs",
-			SpotPrice:                b.config.SpotPrice,
-			SpotPriceProduct:         b.config.SpotPriceAutoProduct,
-			InstanceType:             b.config.InstanceType,
-			UserData:                 b.config.UserData,
-			UserDataFile:             b.config.UserDataFile,
-			SourceAMI:                b.config.SourceAmi,
-			IamInstanceProfile:       b.config.IamInstanceProfile,
-			SubnetId:                 b.config.SubnetId,
-			AssociatePublicIpAddress: b.config.AssociatePublicIpAddress,
-			EbsOptimized:             b.config.EbsOptimized,
-			AvailabilityZone:         b.config.AvailabilityZone,
-			BlockDevices:             b.config.launchBlockDevices,
-			Tags:                     b.config.RunTags,
-			Ctx:                      b.config.ctx,
-			InstanceInitiatedShutdownBehavior: b.config.InstanceInitiatedShutdownBehavior,
-		},
 		&stepTagEBSVolumes{
 			VolumeMapping: b.config.VolumeMappings,
 			Ctx:           b.config.ctx,

builder/amazon/instance/builder.go

@@ -193,6 +193,48 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 	state.Put("hook", hook)
 	state.Put("ui", ui)
 
+	var instanceStep multistep.Step
+
+	if b.config.SpotPrice == "" || b.config.SpotPrice == "0" {
+		instanceStep = &awscommon.StepRunSpotInstance{
+			Debug:                    b.config.PackerDebug,
+			ExpectedRootDevice:       "ebs",
+			SpotPrice:                b.config.SpotPrice,
+			SpotPriceProduct:         b.config.SpotPriceAutoProduct,
+			InstanceType:             b.config.InstanceType,
+			UserData:                 b.config.UserData,
+			UserDataFile:             b.config.UserDataFile,
+			SourceAMI:                b.config.SourceAmi,
+			IamInstanceProfile:       b.config.IamInstanceProfile,
+			SubnetId:                 b.config.SubnetId,
+			AssociatePublicIpAddress: b.config.AssociatePublicIpAddress,
+			EbsOptimized:             b.config.EbsOptimized,
+			AvailabilityZone:         b.config.AvailabilityZone,
+			BlockDevices:             b.config.BlockDevices,
+			Tags:                     b.config.RunTags,
+			Ctx:                      b.config.ctx,
+			InstanceInitiatedShutdownBehavior: b.config.InstanceInitiatedShutdownBehavior,
+		}
+	} else {
+		instanceStep = &awscommon.StepRunSourceInstance{
+			Debug:                    b.config.PackerDebug,
+			ExpectedRootDevice:       "ebs",
+			InstanceType:             b.config.InstanceType,
+			UserData:                 b.config.UserData,
+			UserDataFile:             b.config.UserDataFile,
+			SourceAMI:                b.config.SourceAmi,
+			IamInstanceProfile:       b.config.IamInstanceProfile,
+			SubnetId:                 b.config.SubnetId,
+			AssociatePublicIpAddress: b.config.AssociatePublicIpAddress,
+			EbsOptimized:             b.config.EbsOptimized,
+			AvailabilityZone:         b.config.AvailabilityZone,
+			BlockDevices:             b.config.BlockDevices,
+			Tags:                     b.config.RunTags,
+			Ctx:                      b.config.ctx,
+			InstanceInitiatedShutdownBehavior: b.config.InstanceInitiatedShutdownBehavior,
+		}
+	}
+
 	// Build the steps
 	steps := []multistep.Step{
 		&awscommon.StepPreValidate{
@@ -218,23 +260,7 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 			SecurityGroupIds: b.config.SecurityGroupIds,
 			VpcId:            b.config.VpcId,
 		},
-		&awscommon.StepRunSourceInstance{
+		instanceStep,
-			Debug:                    b.config.PackerDebug,
-			SpotPrice:                b.config.SpotPrice,
-			SpotPriceProduct:         b.config.SpotPriceAutoProduct,
-			InstanceType:             b.config.InstanceType,
-			IamInstanceProfile:       b.config.IamInstanceProfile,
-			UserData:                 b.config.UserData,
-			UserDataFile:             b.config.UserDataFile,
-			SourceAMI:                b.config.SourceAmi,
-			SubnetId:                 b.config.SubnetId,
-			AssociatePublicIpAddress: b.config.AssociatePublicIpAddress,
-			EbsOptimized:             b.config.EbsOptimized,
-			AvailabilityZone:         b.config.AvailabilityZone,
-			BlockDevices:             b.config.BlockDevices,
-			Tags:                     b.config.RunTags,
-			Ctx:                      b.config.ctx,
-		},
 		&awscommon.StepGetPassword{
 			Debug:   b.config.PackerDebug,
 			Comm:    &b.config.RunConfig.Comm,