Kubernetes 如何为“设置正确的端口”；kubectl港前进“；（奇怪地转到localhost:8080）

我通过kubeadm安装kubernetes，然后关闭并再次引导。 然后，只有

kubectl端口转发

不起作用

下面的命令起作用

kubectl top nodes

但是kubectl port forward失败了。有什么建议吗？ 似乎只有端口转发到本地主机：8080。 不起作用

sudo kubectl port-forward -n istio-system svc/istio-ingressgateway 80:80 --address 0.0.0.0

以下是正常模式下的日志

The connection to the server localhost:8080 was refused - did you specify the right host or port?

用于调试模式日志

I0930 01:44:46.904299   47718 round_trippers.go:423] curl -k -v -XGET  -H "Accept: application/json, */*" -H "User-Agent: kubectl/v1.17.12 (linux/amd64) kubernetes/5ec4722" 'http://localhost:8080/api?timeout=32s'
I0930 01:44:46.904927   47718 round_trippers.go:443] GET http://localhost:8080/api?timeout=32s  in 0 milliseconds
I0930 01:44:46.904948   47718 round_trippers.go:449] Response Headers:
I0930 01:44:46.904987   47718 cached_discovery.go:121] skipped caching discovery info due to Get http://localhost:8080/api?timeout=32s: dial tcp 127.0.0.1:8080: connect: connection refused
I0930 01:44:46.905009   47718 shortcut.go:89] Error loading discovery information: Get http://localhost:8080/api?timeout=32s: dial tcp 127.0.0.1:8080: connect: connection refused
I0930 01:44:46.905067   47718 round_trippers.go:423] curl -k -v -XGET  -H "Accept: application/json, */*" -H "User-Agent: kubectl/v1.17.12 (linux/amd64) kubernetes/5ec4722" 'http://localhost:8080/api?timeout=32s'
I0930 01:44:46.905222   47718 round_trippers.go:443] GET http://localhost:8080/api?timeout=32s  in 0 milliseconds
I0930 01:44:46.905240   47718 round_trippers.go:449] Response Headers:
I0930 01:44:46.905263   47718 cached_discovery.go:121] skipped caching discovery info due to Get http://localhost:8080/api?timeout=32s: dial tcp 127.0.0.1:8080: connect: connection refused
I0930 01:44:46.905325   47718 round_trippers.go:423] curl -k -v -XGET  -H "Accept: application/json, */*" -H "User-Agent: kubectl/v1.17.12 (linux/amd64) kubernetes/5ec4722" 'http://localhost:8080/api?timeout=32s'
I0930 01:44:46.905465   47718 round_trippers.go:443] GET http://localhost:8080/api?timeout=32s  in 0 milliseconds
I0930 01:44:46.905482   47718 round_trippers.go:449] Response Headers:
I0930 01:44:46.905504   47718 cached_discovery.go:121] skipped caching discovery info due to Get http://localhost:8080/api?timeout=32s: dial tcp 127.0.0.1:8080: connect: connection refused
I0930 01:44:46.905556   47718 round_trippers.go:423] curl -k -v -XGET  -H "Accept: application/json, */*" -H "User-Agent: kubectl/v1.17.12 (linux/amd64) kubernetes/5ec4722" 'http://localhost:8080/api?timeout=32s'
I0930 01:44:46.905695   47718 round_trippers.go:443] GET http://localhost:8080/api?timeout=32s  in 0 milliseconds
I0930 01:44:46.905712   47718 round_trippers.go:449] Response Headers:
I0930 01:44:46.905734   47718 cached_discovery.go:121] skipped caching discovery info due to Get http://localhost:8080/api?timeout=32s: dial tcp 127.0.0.1:8080: connect: connection refused
I0930 01:44:46.905759   47718 helpers.go:221] Connection error: Get http://localhost:8080/api?timeout=32s: dial tcp 127.0.0.1:8080: connect: connection refused
F0930 01:44:46.905785   47718 helpers.go:114] The connection to the server localhost:8080 was refused - did you specify the right host or port?

kubectl配置视图

如下

apiVersion:v1 集群： -群集： 证书颁发机构数据：数据+省略 服务器：https://172.31.3.157:6443 姓名：kubernetes 上下文： -背景： 集群：kubernetes 用户：kubernetes管理员 姓名：kubernetes-admin@kubernetes 当前上下文：kubernetes-admin@kubernetes 种类：配置 首选项：{} 用户： -姓名：kubernetes管理员 用户： 客户端证书数据：已编辑 客户端密钥数据：已编辑 作为参考，工作

kubectl顶部节点

调试模式如下：， （日志太长，仅附加了标题）

---

“端口转发”命令显示转发端口80；您的故障日志显示无法连接到8080。谢谢，我不打算连接localhost:8080。有什么办法可以解决吗？故障日志是从哪里来的？是什么操作导致的？这是单节点配置吗？您运行群集的基础架构是什么？主机操作系统版本是什么？当您在

sudo

下运行时，您使用的是root用户的

/root/.kube/config

文件，而不是您自己的文件，这就是为什么会出现奇怪的错误。您通常会使用

负载平衡器

类型的服务配置Istio入口网关，因此通常可以从集群外部访问它；你能直接连接到它吗？

I0930 01:46:47.625764   49195 loader.go:375] Config loaded from file:  /home/ubuntu/.kube/config
I0930 01:46:47.641064   49195 round_trippers.go:423] curl -k -v -XGET  -H "User-Agent: kubectl/v1.17.12 (linux/amd64) kubernetes/5ec4722" -H "Accept: application/json, */*" 'https://172.31.3.157:6443/api?timeout=32s'
I0930 01:46:47.680091   49195 round_trippers.go:443] GET https://172.31.3.157:6443/api?timeout=32s 200 OK in 39 milliseconds
I0930 01:46:47.680116   49195 round_trippers.go:449] Response Headers:
I0930 01:46:47.680123   49195 round_trippers.go:452]     Cache-Control: no-cache, private
I0930 01:46:47.680128   49195 round_trippers.go:452]     Content-Type: application/json
I0930 01:46:47.680134   49195 round_trippers.go:452]     Content-Length: 135
I0930 01:46:47.680139   49195 round_trippers.go:452]     Date: Wed, 30 Sep 2020 01:46:47 GMT
I0930 01:46:47.680340   49195 request.go:1017] Response Body: {"kind":"APIVersions","versions":["v1"],"serverAddressByClientCIDRs":[{"clientCIDR":"0.0.0.0/0","serverAddress":"172.31.3.157:6443"}]}
I0930 01:46:47.680594   49195 round_trippers.go:423] curl -k -v -XGET  -H "Accept: application/json, */*" -H "User-Agent: kubectl/v1.17.12 (linux/amd64) kubernetes/5ec4722" 'https://172.31.3.157:6443/apis?timeout=32s'