-func busyboxDockerImage(c *C) string {
- fnm := "busybox_uclibc.tar"
- cachedir := c.MkDir()
- cachefile := cachedir + "/" + fnm
- if _, err := os.Stat(cachefile); err == nil {
- return cachefile
- }
-
- f, err := ioutil.TempFile(cachedir, "")
- c.Assert(err, IsNil)
- defer f.Close()
- defer os.Remove(f.Name())
-
- resp, err := http.Get("https://cache.arvados.org/" + fnm)
- c.Assert(err, IsNil)
- defer resp.Body.Close()
- _, err = io.Copy(f, resp.Body)
- c.Assert(err, IsNil)
- err = f.Close()
- c.Assert(err, IsNil)
- err = os.Rename(f.Name(), cachefile)
- c.Assert(err, IsNil)
-
- return cachefile
-}
-