95 lines
2.6 KiB
Go
95 lines
2.6 KiB
Go
package openstack
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import (
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"context"
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"fmt"
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"log"
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"time"
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"github.com/gophercloud/gophercloud"
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"github.com/gophercloud/gophercloud/openstack/compute/v2/images"
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"github.com/gophercloud/gophercloud/openstack/compute/v2/servers"
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"github.com/hashicorp/packer/helper/multistep"
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"github.com/hashicorp/packer/packer"
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)
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type stepCreateImage struct{}
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func (s *stepCreateImage) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
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config := state.Get("config").(Config)
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server := state.Get("server").(*servers.Server)
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ui := state.Get("ui").(packer.Ui)
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// We need the v2 compute client
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client, err := config.computeV2Client()
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if err != nil {
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err = fmt.Errorf("Error initializing compute client: %s", err)
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state.Put("error", err)
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return multistep.ActionHalt
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}
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// Create the image
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ui.Say(fmt.Sprintf("Creating the image: %s", config.ImageName))
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imageId, err := servers.CreateImage(client, server.ID, servers.CreateImageOpts{
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Name: config.ImageName,
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Metadata: config.ImageMetadata,
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}).ExtractImageID()
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if err != nil {
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err := fmt.Errorf("Error creating image: %s", err)
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state.Put("error", err)
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ui.Error(err.Error())
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return multistep.ActionHalt
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}
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// Set the Image ID in the state
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ui.Message(fmt.Sprintf("Image: %s", imageId))
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state.Put("image", imageId)
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// Wait for the image to become ready
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ui.Say(fmt.Sprintf("Waiting for image %s (image id: %s) to become ready...", config.ImageName, imageId))
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if err := WaitForImage(client, imageId); err != nil {
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err := fmt.Errorf("Error waiting for image: %s", err)
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state.Put("error", err)
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ui.Error(err.Error())
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return multistep.ActionHalt
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}
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return multistep.ActionContinue
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}
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func (s *stepCreateImage) Cleanup(multistep.StateBag) {
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// No cleanup...
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}
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// WaitForImage waits for the given Image ID to become ready.
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func WaitForImage(client *gophercloud.ServiceClient, imageId string) error {
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maxNumErrors := 10
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numErrors := 0
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for {
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image, err := images.Get(client, imageId).Extract()
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if err != nil {
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errCode, ok := err.(*gophercloud.ErrUnexpectedResponseCode)
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if ok && (errCode.Actual == 500 || errCode.Actual == 404) {
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numErrors++
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if numErrors >= maxNumErrors {
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log.Printf("[ERROR] Maximum number of errors (%d) reached; failing with: %s", numErrors, err)
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return err
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}
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log.Printf("[ERROR] %d error received, will ignore and retry: %s", errCode.Actual, err)
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time.Sleep(2 * time.Second)
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continue
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}
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return err
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}
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if image.Status == "ACTIVE" {
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return nil
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}
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log.Printf("Waiting for image creation status: %s (%d%%)", image.Status, image.Progress)
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time.Sleep(2 * time.Second)
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}
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}
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