packer-cn/builder/docker/step_run.go

56 lines
1.3 KiB
Go

package docker
import (
"fmt"
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
)
type StepRun struct {
containerId string
}
func (s *StepRun) Run(state multistep.StateBag) multistep.StepAction {
config := state.Get("config").(*Config)
driver := state.Get("driver").(Driver)
tempDir := state.Get("temp_dir").(string)
ui := state.Get("ui").(packer.Ui)
runConfig := ContainerConfig{
Image: config.Image,
Volumes: map[string]string{
tempDir: "/packer-files",
},
}
ui.Say("Starting docker container with /bin/bash")
containerId, err := driver.StartContainer(&runConfig)
if err != nil {
err := fmt.Errorf("Error running container: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
// Save the container ID
s.containerId = containerId
state.Put("container_id", s.containerId)
ui.Message(fmt.Sprintf("Container ID: %s", s.containerId))
return multistep.ActionContinue
}
func (s *StepRun) Cleanup(state multistep.StateBag) {
if s.containerId == "" {
return
}
// Kill the container. We don't handle errors because errors usually
// just mean that the container doesn't exist anymore, which isn't a
// big deal.
driver := state.Get("driver").(Driver)
driver.StopContainer(s.containerId)
// Reset the container ID so that we're idempotent
s.containerId = ""
}