func (f *dockerFetcher) fetch(u *url.URL) (*os.File, error) {
tmpDir, err := f.getTmpDir()
if err != nil {
return nil, err
}
defer os.RemoveAll(tmpDir)
registryURL := strings.TrimPrefix(u.String(), "docker://")
user, password := f.getCreds(registryURL)
config := docker2aci.RemoteConfig{
Username: user,
Password: password,
Insecure: f.InsecureFlags.AllowHTTP(),
CommonConfig: docker2aci.CommonConfig{
Squash: true,
OutputDir: tmpDir,
TmpDir: tmpDir,
Compression: d2acommon.NoCompression,
},
}
acis, err := docker2aci.ConvertRemoteRepo(registryURL, config)
if err != nil {
return nil, errwrap.Wrap(errors.New("error converting docker image to ACI"), err)
}
aciFile, err := os.Open(acis[0])
if err != nil {
return nil, errwrap.Wrap(errors.New("error opening squashed ACI file"), err)
}
return aciFile, nil
}
func (a *ACBuild) beginFromRemoteDockerImage(start string, insecure bool) (err error) {
outputDir, err := ioutil.TempDir("", "acbuild")
if err != nil {
return err
}
defer os.RemoveAll(outputDir)
tempDir, err := ioutil.TempDir("", "acbuild")
if err != nil {
return err
}
defer os.RemoveAll(tempDir)
insecureConf := common.InsecureConfig{
SkipVerify: insecure,
AllowHTTP: insecure,
}
config := docker2aci.RemoteConfig{
CommonConfig: docker2aci.CommonConfig{
Squash: true,
OutputDir: outputDir,
TmpDir: tempDir,
Compression: common.GzipCompression,
},
Username: "",
Password: "",
Insecure: insecureConf,
}
renderedACIs, err := docker2aci.ConvertRemoteRepo(start, config)
if err != nil {
return err
}
if len(renderedACIs) > 1 {
return fmt.Errorf("internal error: docker2aci didn't squash the image")
}
if len(renderedACIs) == 0 {
return fmt.Errorf("internal error: docker2aci didn't produce any images")
}
absRenderedACI, err := filepath.Abs(renderedACIs[0])
if err != nil {
return err
}
return util.ExtractImage(absRenderedACI, a.CurrentACIPath, nil)
}