github.com/StackPointCloud/packer@v0.10.2-0.20180716202532-b28098e0f79b/builder/qemu/step_create_disk.go (about)

     1  package qemu
     2  
     3  import (
     4  	"context"
     5  	"fmt"
     6  	"path/filepath"
     7  
     8  	"github.com/hashicorp/packer/helper/multistep"
     9  	"github.com/hashicorp/packer/packer"
    10  )
    11  
    12  // This step creates the virtual disk that will be used as the
    13  // hard drive for the virtual machine.
    14  type stepCreateDisk struct{}
    15  
    16  func (s *stepCreateDisk) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
    17  	config := state.Get("config").(*Config)
    18  	driver := state.Get("driver").(Driver)
    19  	ui := state.Get("ui").(packer.Ui)
    20  	name := config.VMName
    21  	path := filepath.Join(config.OutputDir, name)
    22  
    23  	command := []string{
    24  		"create",
    25  		"-f", config.Format,
    26  		path,
    27  		fmt.Sprintf("%vM", config.DiskSize),
    28  	}
    29  
    30  	if config.DiskImage == true {
    31  		return multistep.ActionContinue
    32  	}
    33  
    34  	ui.Say("Creating hard drive...")
    35  	if err := driver.QemuImg(command...); err != nil {
    36  		err := fmt.Errorf("Error creating hard drive: %s", err)
    37  		state.Put("error", err)
    38  		ui.Error(err.Error())
    39  		return multistep.ActionHalt
    40  	}
    41  
    42  	state.Put("disk_filename", name)
    43  
    44  	return multistep.ActionContinue
    45  }
    46  
    47  func (s *stepCreateDisk) Cleanup(state multistep.StateBag) {}