package docker import ( "context" "github.com/hashicorp/packer-plugin-sdk/multistep" "github.com/hashicorp/packer-plugin-sdk/packerbuilderdata" ) type StepSetGeneratedData struct { GeneratedData *packerbuilderdata.GeneratedData } func (s *StepSetGeneratedData) Run(_ context.Context, state multistep.StateBag) multistep.StepAction { driver := state.Get("driver").(Driver) sha256 := "ERR_IMAGE_SHA256_NOT_FOUND" if imageId, ok := state.GetOk("image_id"); ok { s256, err := driver.Sha256(imageId.(string)) if err == nil { sha256 = s256 } } s.GeneratedData.Put("ImageSha256", sha256) return multistep.ActionContinue } func (s *StepSetGeneratedData) Cleanup(_ multistep.StateBag) { // No cleanup... }