packer-cn/builder/amazon/ebssurrogate/root_block_device.go
Joseph Wright cb3699a584 Modify ebssurrogate builder to snapshot all launch devices
Documentation for ebssurrogate states that all of the devices in
`launch_block_device_mappings` are snapshotted and included in the
image. In fact, only the device that was designated as the root
device was snapshotted. This patch modifies the builder to create
snapshots of all the devices and include them in the image. This
allows creating images with separate filesystems preconfigured,
rather than having to add volumes to `ami_block_device_mappings`
and configure them after boot.
2018-03-25 19:37:44 -04:00

47 lines
1.2 KiB
Go

package ebssurrogate
import (
"errors"
"github.com/hashicorp/packer/template/interpolate"
)
type RootBlockDevice struct {
SourceDeviceName string `mapstructure:"source_device_name"`
DeviceName string `mapstructure:"device_name"`
DeleteOnTermination bool `mapstructure:"delete_on_termination"`
IOPS int64 `mapstructure:"iops"`
VolumeType string `mapstructure:"volume_type"`
VolumeSize int64 `mapstructure:"volume_size"`
}
func (c *RootBlockDevice) Prepare(ctx *interpolate.Context) []error {
var errs []error
if c.SourceDeviceName == "" {
errs = append(errs, errors.New("source_device_name for the root_device must be specified"))
}
if c.DeviceName == "" {
errs = append(errs, errors.New("device_name for the root_device must be specified"))
}
if c.VolumeType == "gp2" && c.IOPS != 0 {
errs = append(errs, errors.New("iops may not be specified for a gp2 volume"))
}
if c.IOPS < 0 {
errs = append(errs, errors.New("iops must be greater than 0"))
}
if c.VolumeSize < 0 {
errs = append(errs, errors.New("volume_size must be greater than 0"))
}
if len(errs) > 0 {
return errs
}
return nil
}