docker image squashing

squash.go

import(
  "github.com/docker/engine-api/client"
  "github.com/docker/engine-api/types"
)
func Squash() {
  defaultHeaders := map[string]string{"User-Agent": "abc-1.0"}
  cli, _ := client.NewClient("unix:///var/run/docker.sock", "v1.22", nil, defaultHeaders)
  ctx := context.Background()
  saveBody, _ := cli.ImageSave(ctx, []string{"image-id"})
  src := types.ImageImportSource{
    Source:     saveBody,
    SourceName: "-",
  }
  importOpts := types.ImageImportOptions{
    Message: "Squashing by foo",
    Tag:     "squashed",
    Changes: []string{"CMD /bin/bash"},
  }
  cli.ImageImport(ctx, src, "foo/abr", importOpts)
}