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package openstack
import (
"context"
"fmt"
"log"
"time"
"github.com/gophercloud/gophercloud/openstack/imageservice/v2/imageimport"
"github.com/gophercloud/gophercloud/openstack/imageservice/v2/images"
"github.com/gophercloud/gophercloud/pagination"
"github.com/hashicorp/packer/packer-plugin-sdk/multistep"
packersdk "github.com/hashicorp/packer/packer-plugin-sdk/packer"
)
type StepSourceImageInfo struct {
SourceImage string
SourceImageName string
ExternalSourceImageURL string
ExternalSourceImageFormat string
SourceImageOpts images.ListOpts
SourceMostRecent bool
SourceProperties map[string]string
}
func PropertiesSatisfied(image *images.Image, props *map[string]string) bool {
for key, value := range *props {
if image.Properties[key] != value {
return false
}
}
return true
}
func (s *StepSourceImageInfo) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
config := state.Get("config").(*Config)
ui := state.Get("ui").(packersdk.Ui)
client, err := config.imageV2Client()
if err != nil {
err := fmt.Errorf("error creating image client: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
if s.ExternalSourceImageURL != "" {
createOpts := images.CreateOpts{
Name: s.SourceImageName,
ContainerFormat: "bare",
DiskFormat: s.ExternalSourceImageFormat,
Properties: map[string]string{
"packer_external_source_image_url": s.ExternalSourceImageURL,
"packer_external_source_image_format": s.ExternalSourceImageFormat,
},
}
ui.Say("Creating image using external source image with name " + s.SourceImageName)
ui.Say("Using disk format " + s.ExternalSourceImageFormat)
image, err := images.Create(client, createOpts).Extract()
if err != nil {
err := fmt.Errorf("Error creating source image: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
ui.Say("Created image with ID " + image.ID)
importOpts := imageimport.CreateOpts{
Name: imageimport.WebDownloadMethod,
URI: s.ExternalSourceImageURL,
}
ui.Say("Importing External Source Image from URL " + s.ExternalSourceImageURL)
err = imageimport.Create(client, image.ID, importOpts).ExtractErr()
if err != nil {
err := fmt.Errorf("Error importing source image: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
for image.Status != images.ImageStatusActive {
ui.Message("Image not Active, retrying in 10 seconds")
time.Sleep(10 * time.Second)
img, err := images.Get(client, image.ID).Extract()
if err != nil {
err := fmt.Errorf("Error querying image: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
image = img
}
s.SourceImage = image.ID
}
if s.SourceImage != "" {
state.Put("source_image", s.SourceImage)
return multistep.ActionContinue
}
if s.SourceImageName != "" {
s.SourceImageOpts = images.ListOpts{
Name: s.SourceImageName,
}
}
log.Printf("Using Image Filters %+v", s.SourceImageOpts)
image := &images.Image{}
count := 0
err = images.List(client, s.SourceImageOpts).EachPage(func(page pagination.Page) (bool, error) {
imgs, err := images.ExtractImages(page)
if err != nil {
return false, err
}
for _, img := range imgs {
// Check if all Properties are satisfied
if PropertiesSatisfied(&img, &s.SourceProperties) {
count++
if count == 1 {
// Tentatively return this result.
*image = img
}
// Don't iterate over entries we will never use.
if count > 1 {
break
}
}
}
switch count {
case 0: // Continue looking at next page.
return true, nil
case 1: // Maybe we're done, maybe there is another result in a later page and it is an error.
if s.SourceMostRecent {
return false, nil
}
return true, nil
default: // By now we should know if getting 2+ results is an error or not.
if s.SourceMostRecent {
return false, nil
}
return false, fmt.Errorf(
"Your query returned more than one result. Please try a more specific search, or set most_recent to true. Search filters: %+v properties %+v",
s.SourceImageOpts, s.SourceProperties)
}
})
if err != nil {
err := fmt.Errorf("Error querying image: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
if image.ID == "" {
err := fmt.Errorf("No image was found matching filters: %+v properties %+v",
s.SourceImageOpts, s.SourceProperties)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
ui.Message(fmt.Sprintf("Found Image ID: %s", image.ID))
state.Put("source_image", image.ID)
return multistep.ActionContinue
}
func (s *StepSourceImageInfo) Cleanup(state multistep.StateBag) {
if s.ExternalSourceImageURL != "" {
config := state.Get("config").(*Config)
ui := state.Get("ui").(packersdk.Ui)
client, err := config.imageV2Client()
if err != nil {
err := fmt.Errorf("error creating image client: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return
}
ui.Say(fmt.Sprintf("Deleting temporary external source image: %s ...", s.SourceImageName))
err = images.Delete(client, s.SourceImage).ExtractErr()
if err != nil {
err := fmt.Errorf("error cleaning up external source image: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return
}
}
}
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