67 lines
2.0 KiB
Go
67 lines
2.0 KiB
Go
//go:generate struct-markdown
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package ebssurrogate
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import (
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"errors"
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"github.com/hashicorp/packer/packer-plugin-sdk/template/interpolate"
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)
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type RootBlockDevice struct {
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SourceDeviceName string `mapstructure:"source_device_name"`
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// The device name exposed to the instance (for
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// example, /dev/sdh or xvdh). Required for every device in the block
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// device mapping.
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DeviceName string `mapstructure:"device_name" required:"false"`
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// Indicates whether the EBS volume is
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// deleted on instance termination. Default false. NOTE: If this
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// value is not explicitly set to true and volumes are not cleaned up by
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// an alternative method, additional volumes will accumulate after every
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// build.
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DeleteOnTermination bool `mapstructure:"delete_on_termination" required:"false"`
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// The number of I/O operations per second (IOPS) that
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// the volume supports. See the documentation on
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// IOPs
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// for more information
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IOPS int64 `mapstructure:"iops" required:"false"`
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// The volume type. gp2 for General Purpose
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// (SSD) volumes, io1 for Provisioned IOPS (SSD) volumes, st1 for
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// Throughput Optimized HDD, sc1 for Cold HDD, and standard for
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// Magnetic volumes.
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VolumeType string `mapstructure:"volume_type" required:"false"`
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// The size of the volume, in GiB. Required if
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// not specifying a snapshot_id.
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VolumeSize int64 `mapstructure:"volume_size" required:"false"`
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}
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func (c *RootBlockDevice) Prepare(ctx *interpolate.Context) []error {
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var errs []error
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if c.SourceDeviceName == "" {
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errs = append(errs, errors.New("source_device_name for the root_device must be specified"))
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}
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if c.DeviceName == "" {
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errs = append(errs, errors.New("device_name for the root_device must be specified"))
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}
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if c.VolumeType == "gp2" && c.IOPS != 0 {
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errs = append(errs, errors.New("iops may not be specified for a gp2 volume"))
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}
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if c.IOPS < 0 {
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errs = append(errs, errors.New("iops must be greater than 0"))
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}
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if c.VolumeSize < 0 {
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errs = append(errs, errors.New("volume_size must be greater than 0"))
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}
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if len(errs) > 0 {
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return errs
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}
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return nil
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}
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