github.com/rothwerx/packer@v0.9.0/builder/amazon/chroot/step_register_ami.go (about)

     1  package chroot
     2  
     3  import (
     4  	"fmt"
     5  
     6  	"github.com/aws/aws-sdk-go/aws"
     7  	"github.com/aws/aws-sdk-go/service/ec2"
     8  	"github.com/mitchellh/multistep"
     9  	awscommon "github.com/mitchellh/packer/builder/amazon/common"
    10  	"github.com/mitchellh/packer/packer"
    11  )
    12  
    13  // StepRegisterAMI creates the AMI.
    14  type StepRegisterAMI struct {
    15  	RootVolumeSize int64
    16  }
    17  
    18  func (s *StepRegisterAMI) Run(state multistep.StateBag) multistep.StepAction {
    19  	config := state.Get("config").(*Config)
    20  	ec2conn := state.Get("ec2").(*ec2.EC2)
    21  	image := state.Get("source_image").(*ec2.Image)
    22  	snapshotId := state.Get("snapshot_id").(string)
    23  	ui := state.Get("ui").(packer.Ui)
    24  
    25  	ui.Say("Registering the AMI...")
    26  	blockDevices := make([]*ec2.BlockDeviceMapping, len(image.BlockDeviceMappings))
    27  	for i, device := range image.BlockDeviceMappings {
    28  		newDevice := device
    29  		if *newDevice.DeviceName == *image.RootDeviceName {
    30  			if newDevice.Ebs != nil {
    31  				newDevice.Ebs.SnapshotId = aws.String(snapshotId)
    32  			} else {
    33  				newDevice.Ebs = &ec2.EbsBlockDevice{SnapshotId: aws.String(snapshotId)}
    34  			}
    35  
    36  			if s.RootVolumeSize > *newDevice.Ebs.VolumeSize {
    37  				newDevice.Ebs.VolumeSize = aws.Int64(s.RootVolumeSize)
    38  			}
    39  		}
    40  
    41  		// assume working from a snapshot, so we unset the Encrypted field if set,
    42  		// otherwise AWS API will return InvalidParameter
    43  		if newDevice.Ebs != nil && newDevice.Ebs.Encrypted != nil {
    44  			newDevice.Ebs.Encrypted = nil
    45  		}
    46  
    47  		blockDevices[i] = newDevice
    48  	}
    49  
    50  	registerOpts := buildRegisterOpts(config, image, blockDevices)
    51  
    52  	// Set SriovNetSupport to "simple". See http://goo.gl/icuXh5
    53  	if config.AMIEnhancedNetworking {
    54  		registerOpts.SriovNetSupport = aws.String("simple")
    55  	}
    56  
    57  	registerResp, err := ec2conn.RegisterImage(registerOpts)
    58  	if err != nil {
    59  		state.Put("error", fmt.Errorf("Error registering AMI: %s", err))
    60  		ui.Error(state.Get("error").(error).Error())
    61  		return multistep.ActionHalt
    62  	}
    63  
    64  	// Set the AMI ID in the state
    65  	ui.Say(fmt.Sprintf("AMI: %s", *registerResp.ImageId))
    66  	amis := make(map[string]string)
    67  	amis[*ec2conn.Config.Region] = *registerResp.ImageId
    68  	state.Put("amis", amis)
    69  
    70  	// Wait for the image to become ready
    71  	stateChange := awscommon.StateChangeConf{
    72  		Pending:   []string{"pending"},
    73  		Target:    "available",
    74  		Refresh:   awscommon.AMIStateRefreshFunc(ec2conn, *registerResp.ImageId),
    75  		StepState: state,
    76  	}
    77  
    78  	ui.Say("Waiting for AMI to become ready...")
    79  	if _, err := awscommon.WaitForState(&stateChange); err != nil {
    80  		err := fmt.Errorf("Error waiting for AMI: %s", err)
    81  		state.Put("error", err)
    82  		ui.Error(err.Error())
    83  		return multistep.ActionHalt
    84  	}
    85  
    86  	return multistep.ActionContinue
    87  }
    88  
    89  func (s *StepRegisterAMI) Cleanup(state multistep.StateBag) {}
    90  
    91  func buildRegisterOpts(config *Config, image *ec2.Image, blockDevices []*ec2.BlockDeviceMapping) *ec2.RegisterImageInput {
    92  	registerOpts := &ec2.RegisterImageInput{
    93  		Name:                &config.AMIName,
    94  		Architecture:        image.Architecture,
    95  		RootDeviceName:      image.RootDeviceName,
    96  		BlockDeviceMappings: blockDevices,
    97  		VirtualizationType:  image.VirtualizationType,
    98  	}
    99  
   100  	if config.AMIVirtType != "" {
   101  		registerOpts.VirtualizationType = aws.String(config.AMIVirtType)
   102  	}
   103  
   104  	if config.AMIVirtType != "hvm" {
   105  		registerOpts.KernelId = image.KernelId
   106  		registerOpts.RamdiskId = image.RamdiskId
   107  	}
   108  
   109  	return registerOpts
   110  }