我创建了一个k3s集群并禁用了服务负载均衡器& traefik。我通过清单文件安装了metallb。另外，我在下面创建了一个名为"config"的带有地址池的配置Map，所以我不知道为什么metallb控制器说"no available ips"。

ubuntu@mark:~$ k describe svc nginx
Name:                     nginx
Namespace:                default
Labels:                   app=nginx
Annotations:              <none>
Selector:                 app=nginx
Type:                     LoadBalancer
IP Family Policy:         SingleStack
IP Families:              IPv4
IP:                       10.43.29.17
IPs:                      10.43.29.17
Port:                     <unset>  80/TCP
TargetPort:               80/TCP
NodePort:                 <unset>  30584/TCP
Endpoints:                10.42.4.4:80
Session Affinity:         None
External Traffic Policy:  Cluster
Events:
  Type     Reason            Age   From                Message
  ----     ------            ----  ----                -------
  Warning  AllocationFailed  34s   metallb-controller  Failed to allocate IP for "default/nginx": no available IPs

apiVersion: v1
kind: ConfigMap
metadata:
  namespace: metallb-system
  name: config
data:
  config: |
    address-pools:
      - name: default
    protocol: layer2
      addresses:
      - 192.168.136.206-192.168.136.209