func (a *ACBuild) beginFromRemoteImage(start string, insecure bool) error {
// Check if we're starting with a docker image
if strings.HasPrefix(start, "docker://") {
// TODO use docker2aci
return fmt.Errorf("docker containers are currently unsupported")
}
app, err := discovery.NewAppFromString(start)
if err != nil {
return err
}
labels, err := types.LabelsFromMap(app.Labels)
if err != nil {
return err
}
tmpDepStoreTarPath, err := ioutil.TempDir("", "acbuild-begin-tar")
if err != nil {
return err
}
defer os.RemoveAll(tmpDepStoreTarPath)
tmpDepStoreExpandedPath, err := ioutil.TempDir("", "acbuild-begin-expanded")
if err != nil {
return err
}
defer os.RemoveAll(tmpDepStoreExpandedPath)
reg := registry.Registry{
DepStoreTarPath: tmpDepStoreTarPath,
DepStoreExpandedPath: tmpDepStoreExpandedPath,
Insecure: insecure,
Debug: a.Debug,
}
err = reg.Fetch(app.Name, labels, 0, false)
if err != nil {
if urlerr, ok := err.(*url.Error); ok {
if operr, ok := urlerr.Err.(*net.OpError); ok {
if dnserr, ok := operr.Err.(*net.DNSError); ok {
if dnserr.Err == "no such host" {
return fmt.Errorf("unknown host when fetching image, check your connection and local file paths must start with '/' or '.'")
}
}
}
}
return err
}
files, err := ioutil.ReadDir(tmpDepStoreTarPath)
if err != nil {
return err
}
if len(files) != 1 {
var filelist string
for _, file := range files {
if filelist == "" {
filelist = file.Name()
} else {
filelist = filelist + ", " + file.Name()
}
}
panic("unexpected number of files in store after download: " + filelist)
}
return util.ExtractImage(path.Join(tmpDepStoreTarPath, files[0].Name()), a.CurrentACIPath, nil)
}
func (a *ACBuild) beginFromImage(start string, insecure bool) error {
// Check if we're starting with a file
finfo, err := os.Stat(start)
if err == nil {
if finfo.IsDir() {
return fmt.Errorf("provided starting ACI is a directory: %s", start)
}
return util.UnTar(start, a.CurrentACIPath, nil)
} else if !os.IsNotExist(err) {
return err
}
// Check if we're starting with a docker image
if strings.HasPrefix(start, "docker://") {
// TODO use docker2aci
return fmt.Errorf("docker containers are currently unsupported")
}
// Perform meta discovery, download the ACI, and start with that.
app, err := discovery.NewAppFromString(start)
if err != nil {
return err
}
labels, err := types.LabelsFromMap(app.Labels)
if err != nil {
return err
}
tmpDepStoreTarPath, err := ioutil.TempDir("", "acbuild-begin-tar")
if err != nil {
return err
}
defer os.RemoveAll(tmpDepStoreTarPath)
tmpDepStoreExpandedPath, err := ioutil.TempDir("", "acbuild-begin-expanded")
if err != nil {
return err
}
defer os.RemoveAll(tmpDepStoreExpandedPath)
reg := registry.Registry{
DepStoreTarPath: tmpDepStoreTarPath,
DepStoreExpandedPath: tmpDepStoreExpandedPath,
Insecure: insecure,
Debug: a.Debug,
}
err = reg.Fetch(app.Name, labels, 0, false)
if err != nil {
return err
}
files, err := ioutil.ReadDir(tmpDepStoreTarPath)
if err != nil {
return err
}
if len(files) != 1 {
var filelist string
for _, file := range files {
if filelist == "" {
filelist = file.Name()
} else {
filelist = filelist + ", " + file.Name()
}
}
panic("unexpected number of files in store after download: " + filelist)
}
return util.UnTar(path.Join(tmpDepStoreTarPath, files[0].Name()), a.CurrentACIPath, nil)
}