github.com/timsutton/packer@v1.3.2/builder/amazon/chroot/step_register_ami.go (about)

     1  package chroot
     2  
     3  import (
     4  	"context"
     5  	"fmt"
     6  
     7  	"github.com/aws/aws-sdk-go/aws"
     8  	"github.com/aws/aws-sdk-go/service/ec2"
     9  	awscommon "github.com/hashicorp/packer/builder/amazon/common"
    10  	"github.com/hashicorp/packer/helper/multistep"
    11  	"github.com/hashicorp/packer/packer"
    12  )
    13  
    14  // StepRegisterAMI creates the AMI.
    15  type StepRegisterAMI struct {
    16  	RootVolumeSize           int64
    17  	EnableAMIENASupport      *bool
    18  	EnableAMISriovNetSupport bool
    19  }
    20  
    21  func (s *StepRegisterAMI) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
    22  	config := state.Get("config").(*Config)
    23  	ec2conn := state.Get("ec2").(*ec2.EC2)
    24  	snapshotId := state.Get("snapshot_id").(string)
    25  	ui := state.Get("ui").(packer.Ui)
    26  
    27  	ui.Say("Registering the AMI...")
    28  
    29  	var (
    30  		registerOpts   *ec2.RegisterImageInput
    31  		mappings       []*ec2.BlockDeviceMapping
    32  		image          *ec2.Image
    33  		rootDeviceName string
    34  	)
    35  
    36  	if config.FromScratch {
    37  		mappings = config.AMIBlockDevices.BuildAMIDevices()
    38  		rootDeviceName = config.RootDeviceName
    39  	} else {
    40  		image = state.Get("source_image").(*ec2.Image)
    41  		mappings = image.BlockDeviceMappings
    42  		rootDeviceName = *image.RootDeviceName
    43  	}
    44  
    45  	newMappings := make([]*ec2.BlockDeviceMapping, len(mappings))
    46  	for i, device := range mappings {
    47  		newDevice := device
    48  		if *newDevice.DeviceName == rootDeviceName {
    49  			if newDevice.Ebs != nil {
    50  				newDevice.Ebs.SnapshotId = aws.String(snapshotId)
    51  			} else {
    52  				newDevice.Ebs = &ec2.EbsBlockDevice{SnapshotId: aws.String(snapshotId)}
    53  			}
    54  
    55  			if config.FromScratch || s.RootVolumeSize > *newDevice.Ebs.VolumeSize {
    56  				newDevice.Ebs.VolumeSize = aws.Int64(s.RootVolumeSize)
    57  			}
    58  		}
    59  
    60  		// assume working from a snapshot, so we unset the Encrypted field if set,
    61  		// otherwise AWS API will return InvalidParameter
    62  		if newDevice.Ebs != nil && newDevice.Ebs.Encrypted != nil {
    63  			newDevice.Ebs.Encrypted = nil
    64  		}
    65  
    66  		newMappings[i] = newDevice
    67  	}
    68  
    69  	if config.FromScratch {
    70  		registerOpts = &ec2.RegisterImageInput{
    71  			Name:                &config.AMIName,
    72  			Architecture:        aws.String(ec2.ArchitectureValuesX8664),
    73  			RootDeviceName:      aws.String(rootDeviceName),
    74  			VirtualizationType:  aws.String(config.AMIVirtType),
    75  			BlockDeviceMappings: newMappings,
    76  		}
    77  	} else {
    78  		registerOpts = buildRegisterOpts(config, image, newMappings)
    79  	}
    80  
    81  	if s.EnableAMISriovNetSupport {
    82  		// Set SriovNetSupport to "simple". See http://goo.gl/icuXh5
    83  		// As of February 2017, this applies to C3, C4, D2, I2, R3, and M4 (excluding m4.16xlarge)
    84  		registerOpts.SriovNetSupport = aws.String("simple")
    85  	}
    86  	if s.EnableAMIENASupport != nil && *s.EnableAMIENASupport {
    87  		// Set EnaSupport to true
    88  		// As of February 2017, this applies to C5, I3, P2, R4, X1, and m4.16xlarge
    89  		registerOpts.EnaSupport = aws.Bool(true)
    90  	}
    91  
    92  	registerResp, err := ec2conn.RegisterImage(registerOpts)
    93  	if err != nil {
    94  		state.Put("error", fmt.Errorf("Error registering AMI: %s", err))
    95  		ui.Error(state.Get("error").(error).Error())
    96  		return multistep.ActionHalt
    97  	}
    98  
    99  	// Set the AMI ID in the state
   100  	ui.Say(fmt.Sprintf("AMI: %s", *registerResp.ImageId))
   101  	amis := make(map[string]string)
   102  	amis[*ec2conn.Config.Region] = *registerResp.ImageId
   103  	state.Put("amis", amis)
   104  
   105  	ui.Say("Waiting for AMI to become ready...")
   106  	if err := awscommon.WaitUntilAMIAvailable(ctx, ec2conn, *registerResp.ImageId); err != nil {
   107  		err := fmt.Errorf("Error waiting for AMI: %s", err)
   108  		state.Put("error", err)
   109  		ui.Error(err.Error())
   110  		return multistep.ActionHalt
   111  	}
   112  
   113  	return multistep.ActionContinue
   114  }
   115  
   116  func (s *StepRegisterAMI) Cleanup(state multistep.StateBag) {}
   117  
   118  func buildRegisterOpts(config *Config, image *ec2.Image, mappings []*ec2.BlockDeviceMapping) *ec2.RegisterImageInput {
   119  	registerOpts := &ec2.RegisterImageInput{
   120  		Name:                &config.AMIName,
   121  		Architecture:        image.Architecture,
   122  		RootDeviceName:      image.RootDeviceName,
   123  		BlockDeviceMappings: mappings,
   124  		VirtualizationType:  image.VirtualizationType,
   125  	}
   126  
   127  	if config.AMIVirtType != "" {
   128  		registerOpts.VirtualizationType = aws.String(config.AMIVirtType)
   129  	}
   130  
   131  	if config.AMIVirtType != "hvm" {
   132  		registerOpts.KernelId = image.KernelId
   133  		registerOpts.RamdiskId = image.RamdiskId
   134  	}
   135  	return registerOpts
   136  }