packer-cn/builder/amazon/ebssurrogate/block_device.go

106 lines
2.7 KiB
Go

//go:generate struct-markdown
package ebssurrogate
import (
"strings"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/ec2"
awscommon "github.com/hashicorp/packer/builder/amazon/common"
"github.com/hashicorp/packer/template/interpolate"
)
type BlockDevice struct {
awscommon.BlockDevice `mapstructure:",squash"`
// If true, this block device will not be snapshotted and the created AMI
// will not contain block device mapping information for this volume. If
// false, the block device will be mapped into the final created AMI. Set
// this option to true if you need a block device mounted in the surrogate
// AMI but not in the final created AMI.
OmitFromArtifact bool `mapstructure:"omit_from_artifact"`
}
type BlockDevices []BlockDevice
func (bds BlockDevices) Common() []awscommon.BlockDevice {
res := []awscommon.BlockDevice{}
for _, bd := range bds {
res = append(res, bd.BlockDevice)
}
return res
}
func (bds BlockDevices) BuildEC2BlockDeviceMappings() []*ec2.BlockDeviceMapping {
var blockDevices []*ec2.BlockDeviceMapping
for _, blockDevice := range bds {
blockDevices = append(blockDevices, blockDevice.BuildEC2BlockDeviceMapping())
}
return blockDevices
}
func (blockDevice BlockDevice) BuildEC2BlockDeviceMapping() *ec2.BlockDeviceMapping {
mapping := &ec2.BlockDeviceMapping{
DeviceName: aws.String(blockDevice.DeviceName),
}
if blockDevice.NoDevice {
mapping.NoDevice = aws.String("")
return mapping
} else if blockDevice.VirtualName != "" {
if strings.HasPrefix(blockDevice.VirtualName, "ephemeral") {
mapping.VirtualName = aws.String(blockDevice.VirtualName)
}
return mapping
}
ebsBlockDevice := &ec2.EbsBlockDevice{
DeleteOnTermination: aws.Bool(blockDevice.DeleteOnTermination),
}
if blockDevice.VolumeType != "" {
ebsBlockDevice.VolumeType = aws.String(blockDevice.VolumeType)
}
if blockDevice.VolumeSize > 0 {
ebsBlockDevice.VolumeSize = aws.Int64(blockDevice.VolumeSize)
}
// IOPS is only valid for io1 type
if blockDevice.VolumeType == "io1" {
ebsBlockDevice.Iops = aws.Int64(blockDevice.IOPS)
}
// You cannot specify Encrypted if you specify a Snapshot ID
if blockDevice.SnapshotId != "" {
ebsBlockDevice.SnapshotId = aws.String(blockDevice.SnapshotId)
}
ebsBlockDevice.Encrypted = blockDevice.Encrypted.ToBoolPointer()
mapping.Ebs = ebsBlockDevice
return mapping
}
func (bds BlockDevices) Prepare(ctx *interpolate.Context) (errs []error) {
for _, block := range bds {
if err := block.Prepare(ctx); err != nil {
errs = append(errs, err)
}
}
return errs
}
func (b BlockDevices) GetOmissions() map[string]bool {
omitMap := make(map[string]bool)
for _, blockDevice := range b {
omitMap[blockDevice.DeviceName] = blockDevice.OmitFromArtifact
}
return omitMap
}