fix host name validator

pkg/baremetal/tasks/bm_register.go

@@ -139,7 +139,7 @@ func (s *sBaremetalRegisterTask) CreateBaremetal() (string, error) {
 	}
 
 	params := jsonutils.NewDict()
-	params.Set("name", jsonutils.NewString("BM"+strings.Replace(s.accessNic.Mac.String(), ":", "", -1)))
+	params.Set("name", jsonutils.NewString(strings.Replace(s.accessNic.Mac.String(), ":", "", -1)))
 	params.Set("access_mac", jsonutils.NewString(s.accessNic.Mac.String()))
 	params.Set("host_type", jsonutils.NewString("baremetal"))
 	params.Set("is_baremetal", jsonutils.JSONTrue)

pkg/cloudcommon/db/namevalidator.go

@@ -126,3 +126,16 @@ func (manager *SDnsNameValidatorManager) ValidateName(name string) error {
 	}
 	return httperrors.NewInputParameterError("name starts with letter, and contains letter, number and - only")
 }
+
+var (
+	hostNameREG = regexp.MustCompile(`^[a-z$][a-z0-9-${}.]*$`)
+)
+
+type SHostNameValidatorManager struct{}
+
+func (manager *SHostNameValidatorManager) ValidateName(name string) error {
+	if hostNameREG.MatchString(name) {
+		return nil
+	}
+	return httperrors.NewInputParameterError("name starts with letter, and contains letter, number and - only")
+}

pkg/compute/models/hosts.go

@@ -61,7 +61,7 @@ import (
 type SHostManager struct {
 	db.SEnabledStatusInfrasResourceBaseManager
 	db.SExternalizedResourceBaseManager
-	db.SDnsNameValidatorManager
+	db.SHostNameValidatorManager
 	SZoneResourceBaseManager
 	SManagedResourceBaseManager
 }