53 lines
1.5 KiB
Go
53 lines
1.5 KiB
Go
package googlecompute
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import (
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"fmt"
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"path/filepath"
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"github.com/mitchellh/multistep"
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"github.com/mitchellh/packer/packer"
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)
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// StepCreateImage represents a Packer build step that creates GCE machine
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// images.
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type StepCreateImage int
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// Run executes the Packer build step that creates a GCE machine image.
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//
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// Currently the only way to create a GCE image is to run the gcimagebundle
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// command on the running GCE instance.
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func (s *StepCreateImage) Run(state multistep.StateBag) multistep.StepAction {
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config := state.Get("config").(*Config)
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comm := state.Get("communicator").(packer.Communicator)
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ui := state.Get("ui").(packer.Ui)
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sudoPrefix := ""
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if config.SSHUsername != "root" {
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sudoPrefix = "sudo "
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}
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imageFilename := fmt.Sprintf("%s.tar.gz", config.ImageName)
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imageBundleCmd := "/usr/bin/gcimagebundle -d /dev/sda -o /tmp/"
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ui.Say("Creating image...")
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cmd := new(packer.RemoteCmd)
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cmd.Command = fmt.Sprintf("%s%s --output_file_name %s --fssize %d",
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sudoPrefix, imageBundleCmd, imageFilename, config.DiskSizeGb*1024*1024*1024)
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err := cmd.StartWithUi(comm, ui)
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if err == nil && cmd.ExitStatus != 0 {
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err = fmt.Errorf(
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"gcimagebundle exited with non-zero exit status: %d", cmd.ExitStatus)
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}
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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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state.Put("image_file_name", filepath.Join("/tmp", imageFilename))
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return multistep.ActionContinue
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}
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func (s *StepCreateImage) Cleanup(state multistep.StateBag) {}
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