110 lines
3.2 KiB
Go
110 lines
3.2 KiB
Go
package cloudstack
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import (
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"context"
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"fmt"
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"time"
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"github.com/hashicorp/packer/helper/multistep"
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"github.com/hashicorp/packer/packer"
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"github.com/xanzy/go-cloudstack/cloudstack"
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)
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type stepCreateTemplate struct{}
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func (s *stepCreateTemplate) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
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client := state.Get("client").(*cloudstack.CloudStackClient)
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config := state.Get("config").(*Config)
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ui := state.Get("ui").(packer.Ui)
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ui.Say(fmt.Sprintf("Creating template: %s", config.TemplateName))
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// Retrieve the instance ID from the previously saved state.
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instanceID, ok := state.Get("instance_id").(string)
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if !ok || instanceID == "" {
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err := fmt.Errorf("Could not retrieve instance_id from state!")
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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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// Create a new parameter struct.
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p := client.Template.NewCreateTemplateParams(
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config.TemplateDisplayText,
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config.TemplateName,
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config.TemplateOS,
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)
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// Configure the template according to the supplied config.
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p.SetIsfeatured(config.TemplateFeatured)
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p.SetIspublic(config.TemplatePublic)
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p.SetIsdynamicallyscalable(config.TemplateScalable)
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p.SetPasswordenabled(config.TemplatePasswordEnabled)
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p.SetRequireshvm(config.TemplateRequiresHVM)
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if config.Project != "" {
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p.SetProjectid(config.Project)
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}
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if config.TemplateTag != "" {
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p.SetTemplatetag(config.TemplateTag)
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}
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ui.Message("Retrieving the ROOT volume ID...")
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volumeID, err := getRootVolumeID(client, instanceID)
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if err != nil {
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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 volume ID from which to create the template.
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p.SetVolumeid(volumeID)
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ui.Message("Creating the new template...")
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template, err := client.Template.CreateTemplate(p)
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if err != nil {
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err := fmt.Errorf("Error creating the new template %s: %s", config.TemplateName, 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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// This is kind of nasty, but it appears to be needed to prevent corrupt templates.
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// When CloudStack says the template creation is done and you then delete the source
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// volume shortly after, it seems to corrupt the newly created template. Giving it an
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// additional 30 seconds to really finish up, seem to prevent that from happening.
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time.Sleep(30 * time.Second)
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ui.Message("Template has been created!")
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// Store the template.
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state.Put("template", template)
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return multistep.ActionContinue
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}
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// Cleanup any resources that may have been created during the Run phase.
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func (s *stepCreateTemplate) Cleanup(state multistep.StateBag) {
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// Nothing to cleanup for this step.
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}
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func getRootVolumeID(client *cloudstack.CloudStackClient, instanceID string) (string, error) {
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// Retrieve the virtual machine object.
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p := client.Volume.NewListVolumesParams()
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// Set the type and virtual machine ID
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p.SetType("ROOT")
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p.SetVirtualmachineid(instanceID)
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volumes, err := client.Volume.ListVolumes(p)
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if err != nil {
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return "", fmt.Errorf("Failed to retrieve ROOT volume: %s", err)
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}
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if volumes.Count != 1 {
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return "", fmt.Errorf("Could not find ROOT disk of instance %s", instanceID)
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}
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return volumes.Volumes[0].Id, nil
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}
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