// registerManagedInstance checks for activation credentials and performs managed instance registration when present
func registerManagedInstance() (managedInstanceID string, err error) {
// try to activate the instance with the activation credentials
publicKey, privateKey, keyType, err := registration.GenerateKeyPair()
if err != nil {
return managedInstanceID, fmt.Errorf("error generating signing keys. %v", err)
}
// checking write access before registering
err = registration.UpdateServerInfo("", "", privateKey, keyType)
if err != nil {
return managedInstanceID,
fmt.Errorf("Unable to save registration information. %v\nTry running as sudo/administrator.", err)
}
// generate fingerprint
fingerprint, err := registration.Fingerprint()
if err != nil {
return managedInstanceID, fmt.Errorf("error generating instance fingerprint. %v", err)
}
service := anonauth.NewAnonymousService(region)
managedInstanceID, err = service.RegisterManagedInstance(
activationCode,
activationID,
publicKey,
keyType,
fingerprint,
)
if err != nil {
return managedInstanceID, fmt.Errorf("error registering the instance with AWS SSM. %v", err)
}
err = registration.UpdateServerInfo(managedInstanceID, region, privateKey, keyType)
if err != nil {
return managedInstanceID, fmt.Errorf("error persisting the instance registration information. %v", err)
}
// saving registration information to the registration file
reg := map[string]string{
"ManagedInstanceID": managedInstanceID,
"Region": region,
}
var regData []byte
if regData, err = json.Marshal(reg); err != nil {
return "", fmt.Errorf("Failed to marshal registration info. %v", err)
}
if err = ioutil.WriteFile(registrationFile, regData, appconfig.ReadWriteAccess); err != nil {
return "", fmt.Errorf("Failed to write registration info to file. %v", err)
}
return managedInstanceID, nil
}
// Fingerprint returns the managed instance fingerprint
func (instanceInfo) Fingerprint() (string, error) { return registration.Fingerprint() }