125 lines
2.9 KiB
Go
125 lines
2.9 KiB
Go
package common
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import (
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"fmt"
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"github.com/mitchellh/multistep"
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"github.com/mitchellh/packer/packer"
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"log"
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"os"
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"time"
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)
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type StepUploadVdi struct {
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VdiName string
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ImagePathFunc func() string
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VdiUuidKey string
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}
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func (self *StepUploadVdi) Run(state multistep.StateBag) multistep.StepAction {
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config := state.Get("commonconfig").(CommonConfig)
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ui := state.Get("ui").(packer.Ui)
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client := state.Get("client").(XenAPIClient)
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imagePath := self.ImagePathFunc()
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if imagePath == "" {
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// skip if no disk image to attach
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return multistep.ActionContinue
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}
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ui.Say(fmt.Sprintf("Step: Upload VDI '%s'", self.VdiName))
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// Create VDI for the image
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sr, err := config.GetSR(client)
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if err != nil {
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ui.Error(fmt.Sprintf("Unable to get SR: %s", err.Error()))
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return multistep.ActionHalt
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}
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// Open the file for reading (NB: httpUpload closes the file for us)
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fh, err := os.Open(imagePath)
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if err != nil {
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ui.Error(fmt.Sprintf("Unable to open disk image '%s': %s", imagePath, err.Error()))
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return multistep.ActionHalt
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}
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// Get file length
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fstat, err := fh.Stat()
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if err != nil {
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ui.Error(fmt.Sprintf("Unable to stat disk image '%s': %s", imagePath, err.Error()))
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return multistep.ActionHalt
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}
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fileLength := fstat.Size()
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// Create the VDI
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vdi, err := sr.CreateVdi(self.VdiName, fileLength)
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if err != nil {
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ui.Error(fmt.Sprintf("Unable to create VDI '%s': %s", self.VdiName, err.Error()))
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return multistep.ActionHalt
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}
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vdiUuid, err := vdi.GetUuid()
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if err != nil {
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ui.Error(fmt.Sprintf("Unable to get UUID of VDI '%s': %s", self.VdiName, err.Error()))
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return multistep.ActionHalt
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}
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state.Put(self.VdiUuidKey, vdiUuid)
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err = httpUpload(fmt.Sprintf("https://%s/import_raw_vdi?vdi=%s&session_id=%s",
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client.Host,
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vdi.Ref,
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client.Session.(string),
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), fh, state)
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if err != nil {
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ui.Error(fmt.Sprintf("Unable to upload VDI: %s", 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 (self *StepUploadVdi) Cleanup(state multistep.StateBag) {
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config := state.Get("commonconfig").(CommonConfig)
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ui := state.Get("ui").(packer.Ui)
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client := state.Get("client").(XenAPIClient)
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if config.ShouldKeepVM(state) {
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return
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}
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vdiUuidRaw, ok := state.GetOk(self.VdiUuidKey)
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if !ok {
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// VDI doesn't exist
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return
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}
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vdiUuid := vdiUuidRaw.(string)
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if vdiUuid == "" {
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// VDI already cleaned up
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return
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}
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vdi, err := client.GetVdiByUuid(vdiUuid)
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if err != nil {
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ui.Error(fmt.Sprintf("Can't get VDI '%s': %s", vdiUuid, err.Error()))
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return
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}
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// an interrupted import_raw_vdi takes a while to release the VDI
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// so try several times
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for i := 0; i < 3; i++ {
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log.Printf("Trying to destroy VDI...")
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err = vdi.Destroy()
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if err == nil {
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break
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}
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time.Sleep(1 * time.Second)
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}
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if err != nil {
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ui.Error(fmt.Sprintf("Can't destroy VDI '%s': %s", vdiUuid, err.Error()))
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return
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}
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ui.Say(fmt.Sprintf("Destroyed VDI '%s'", self.VdiName))
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state.Put(self.VdiUuidKey, "")
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}
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