问题：kubesphere v3.0.0更新至v3.1.0时，ldap账户登陆失败显示如下错误：
error.png
解决：
for user in `kubectl get users -l \!iam.kubesphere.io/origin-uid,iam.kubesphere.io/identify-provider -o jsonpath="{.items[*].metadata.name}"`; do kubectl label user $user iam.kubesphere.io/origin-uid=$user; done
cat << EOF | kubectl apply -f -
apiVersion: iam.kubesphere.io/v1alpha2
kind: GlobalRoleBinding
metadata:
name: pre-registration
roleRef:
apiGroup: iam.kubesphere.io
kind: GlobalRole
name: pre-registration
subjects:
- apiGroup: rbac.authorization.k8s.io
kind: Group
name: pre-registration
EOF
