func MigrateHost(h *Host, data []byte) (*Host, bool, error) {
var (
migrationPerformed = true
)
migratedHostMetadata, err := getMigratedHostMetadata(data)
if err != nil {
return &Host{}, false, err
}
// Don't need to specify store path here since it will be read from the data.
driver, err := drivermaker.NewDriver(migratedHostMetadata.DriverName, h.Name, "")
if err != nil {
return &Host{}, false, err
}
for h.ConfigVersion = migratedHostMetadata.ConfigVersion; h.ConfigVersion <= version.ConfigVersion; h.ConfigVersion++ {
switch h.ConfigVersion {
case 0:
hostV0 := &HostV0{
Driver: driver,
}
if err := json.Unmarshal(data, &hostV0); err != nil {
return &Host{}, migrationPerformed, fmt.Errorf("Error unmarshalling host config version 0: %s", err)
}
h = MigrateHostV0ToHostV1(hostV0)
default:
migrationPerformed = false
}
}
h.Driver = driver
if err := json.Unmarshal(data, &h); err != nil {
return &Host{}, migrationPerformed, fmt.Errorf("Error unmarshalling most recent host version: %s", err)
}
return h, migrationPerformed, nil
}
func main() {
if len(os.Args) != 2 {
bail()
}
libmachine.SetDebug(true)
errR, errW := io.Pipe()
errTracker := &FancyTracker{
r: errR,
w: os.Stderr,
}
outR, outW := io.Pipe()
outTracker := &FancyTracker{
r: outR,
w: os.Stdout,
}
go errTracker.Track()
go outTracker.Track()
dmlog.SetOutWriter(errW)
dmlog.SetErrWriter(outW)
store := libmachine.GetDefaultStore()
store.Path = "./store"
hostName := "mobydick"
data, err := ioutil.ReadFile("moby.yml")
if err != nil {
log.Fatal(err)
}
switch os.Args[1] {
case "up":
driver, err := drivermaker.NewDriver("digitalocean", hostName, "./store")
if err != nil {
log.Fatal(err)
}
h, err := store.NewHost(driver)
if err != nil {
log.Fatal(err)
}
if err := yaml.Unmarshal(data, h); err != nil {
log.Fatal(err)
}
castedDriver, ok := driver.(*digitalocean.Driver)
if !ok {
log.Fatal("Fatal error, shoud be able to cast to driver type \"digitalocean\".")
}
driverWrapper := DriverWrapper{castedDriver}
if err := yaml.Unmarshal(data, &driverWrapper); err != nil {
log.Fatal(err)
}
h.Driver = driverWrapper.DriverOptions
spew.Dump(h)
if err := libmachine.Create(store, h); err != nil {
log.Fatal(err)
}
case "apply":
h, err := store.Get(hostName)
if err != nil {
log.Fatal(err)
}
spew.Dump(h)
if err := yaml.Unmarshal(data, h); err != nil {
log.Fatal(err)
}
if err := h.Provision(); err != nil {
log.Fatal(err)
}
default:
bail()
}
}