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

75 lines
2.2 KiB
Go

package common
import (
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/mitchellh/packer/template/interpolate"
)
// BlockDevice
type BlockDevice struct {
DeleteOnTermination bool `mapstructure:"delete_on_termination"`
DeviceName string `mapstructure:"device_name"`
Encrypted bool `mapstructure:"encrypted"`
IOPS int64 `mapstructure:"iops"`
NoDevice bool `mapstructure:"no_device"`
SnapshotId string `mapstructure:"snapshot_id"`
VirtualName string `mapstructure:"virtual_name"`
VolumeType string `mapstructure:"volume_type"`
VolumeSize int64 `mapstructure:"volume_size"`
}
type BlockDevices struct {
AMIMappings []BlockDevice `mapstructure:"ami_block_device_mappings"`
LaunchMappings []BlockDevice `mapstructure:"launch_block_device_mappings"`
}
func buildBlockDevices(b []BlockDevice) []*ec2.BlockDeviceMapping {
var blockDevices []*ec2.BlockDeviceMapping
for _, blockDevice := range b {
ebsBlockDevice := &ec2.EBSBlockDevice{
VolumeType: &blockDevice.VolumeType,
VolumeSize: &blockDevice.VolumeSize,
DeleteOnTermination: &blockDevice.DeleteOnTermination,
}
// IOPS is only valid for SSD Volumes
if blockDevice.VolumeType != "" && blockDevice.VolumeType != "standard" && blockDevice.VolumeType != "gp2" {
ebsBlockDevice.IOPS = &blockDevice.IOPS
}
// You cannot specify Encrypted if you specify a Snapshot ID
if blockDevice.SnapshotId != "" {
ebsBlockDevice.SnapshotID = &blockDevice.SnapshotId
} else {
ebsBlockDevice.Encrypted = &blockDevice.Encrypted
}
mapping := &ec2.BlockDeviceMapping{
EBS: ebsBlockDevice,
DeviceName: &blockDevice.DeviceName,
VirtualName: &blockDevice.VirtualName,
}
if blockDevice.NoDevice {
mapping.NoDevice = aws.String("")
}
blockDevices = append(blockDevices, mapping)
}
return blockDevices
}
func (b *BlockDevices) Prepare(ctx *interpolate.Context) []error {
return nil
}
func (b *BlockDevices) BuildAMIDevices() []*ec2.BlockDeviceMapping {
return buildBlockDevices(b.AMIMappings)
}
func (b *BlockDevices) BuildLaunchDevices() []*ec2.BlockDeviceMapping {
return buildBlockDevices(b.LaunchMappings)
}