51 lines
1.2 KiB
Go
51 lines
1.2 KiB
Go
package hyperone
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import (
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"context"
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"fmt"
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"log"
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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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const (
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vmBusPath = "/sys/bus/vmbus/devices"
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)
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type stepPrepareDevice struct{}
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func (s *stepPrepareDevice) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
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ui := state.Get("ui").(packer.Ui)
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controllerNumber := state.Get("chroot_controller_number").(string)
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controllerLocation := state.Get("chroot_controller_location").(int)
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log.Println("Searching for available device...")
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cmd := fmt.Sprintf("find %s/%s/ -path *:%d/block -exec ls {} \\;",
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vmBusPath, controllerNumber, controllerLocation)
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block, err := captureOutput(cmd, state)
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if err != nil {
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err := fmt.Errorf("error finding available device: %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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if block == "" {
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err := fmt.Errorf("device not found")
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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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device := fmt.Sprintf("/dev/%s", block)
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ui.Say(fmt.Sprintf("Found device: %s", device))
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state.Put("device", device)
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return multistep.ActionContinue
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}
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func (s *stepPrepareDevice) Cleanup(state multistep.StateBag) {}
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