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package openstack
import (
"fmt"
"strings"
imageservice "github.com/gophercloud/gophercloud/openstack/imageservice/v2/images"
"github.com/hashicorp/packer/template/interpolate"
)
// ImageConfig is for common configuration related to creating Images.
type ImageConfig struct {
ImageName string `mapstructure:"image_name"`
ImageMetadata map[string]string `mapstructure:"metadata"`
ImageVisibility imageservice.ImageVisibility `mapstructure:"image_visibility"`
ImageMembers []string `mapstructure:"image_members"`
ImageDiskFormat string `mapstructure:"image_disk_format"`
ImageTags []string `mapstructure:"image_tags"`
}
func (c *ImageConfig) Prepare(ctx *interpolate.Context) []error {
errs := make([]error, 0)
if c.ImageName == "" {
errs = append(errs, fmt.Errorf("An image_name must be specified"))
}
// By default, OpenStack seems to create the image with an image_type of
// "snapshot", since it came from snapshotting a VM. A "snapshot" looks
// slightly different in the OpenStack UI and OpenStack won't show "snapshot"
// images as a choice in the list of images to boot from for a new instance.
// See https://github.com/hashicorp/packer/issues/3038
if c.ImageMetadata == nil {
c.ImageMetadata = map[string]string{"image_type": "image"}
} else if c.ImageMetadata["image_type"] == "" {
c.ImageMetadata["image_type"] = "image"
}
// ImageVisibility values
// https://wiki.openstack.org/wiki/Glance-v2-community-image-visibility-design
if c.ImageVisibility != "" {
validVals := []imageservice.ImageVisibility{"public", "private", "shared", "community"}
valid := false
for _, val := range validVals {
if strings.EqualFold(string(c.ImageVisibility), string(val)) {
valid = true
c.ImageVisibility = val
break
}
}
if !valid {
errs = append(errs, fmt.Errorf("Unknown visibility value %s", c.ImageVisibility))
}
}
if len(errs) > 0 {
return errs
}
return nil
}
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