43 lines
998 B
Go
43 lines
998 B
Go
package docker
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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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"os"
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)
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// StepExport exports the container to a flat tar file.
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type StepExport struct{}
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func (s *StepExport) Run(state multistep.StateBag) multistep.StepAction {
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config := state.Get("config").(*Config)
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driver := state.Get("driver").(Driver)
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containerId := state.Get("container_id").(string)
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ui := state.Get("ui").(packer.Ui)
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// Open the file that we're going to write to
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f, err := os.Create(config.ExportPath)
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if err != nil {
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err := fmt.Errorf("Error creating output file: %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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ui.Say("Exporting the container")
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if err := driver.Export(containerId, f); err != nil {
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f.Close()
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os.Remove(f.Name())
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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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f.Close()
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return multistep.ActionContinue
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}
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func (s *StepExport) Cleanup(state multistep.StateBag) {}
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