python - Kubernetes 官方教程 : The web page at http://localhost:6000/might be temporarily down or it may have moved permanently to a new web address

Question

我正在尝试完成本教程 https://kubernetes.io/blog/2019/07/23/get-started-with-kubernetes-using-python/在我的本地机器上

我已经完成了所有步骤:

app git:(master) ✗  kubectl get pods

NAME                            READY   STATUS    RESTARTS   AGE
hello-python-6c7b478cf5-49vdg   1/1     Running   0          2m53s
hello-python-6c7b478cf5-d4tfl   1/1     Running   0          2m53s
hello-python-6c7b478cf5-ltb8r   1/1     Running   0          2m53s
hello-python-6c7b478cf5-qsqvt   1/1     Running   0          2m53s
 app git:(master) ✗

但是当我转到 localhost:6000 时，我得到一个错误:

This site can’t be reached. The web page at http://localhost:6000/ might be temporarily down or it may have moved permanently to a new web address.ERR_UNSAFE_PORT

当我执行 lsof -i tcp:6000 时，我得到了这个:

COMMAND     PID        USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
com.docke 98546     <me>   76u  IPv6 0xc52e947a7a450f69      0t0  TCP *:6000 (LISTEN)

这是教程中的错误，还是我做错了什么？

Answer 1

Docker 桌面

我检查了它是否有效，我遇到了同样的问题。

编辑

正如@Boris the Spider 在评论中提到的

Port 6000 is blocked by chrome for safety - it’s the X11 port and I think Chrome is trying to prevent certain kinds of XSS attacks. You can disable this protection by passing flags to chrome.

如果您不想更改 Chrome 设置，您可以更改服务的端口。例如从 6000 到 8000。

apiVersion: v1
kind: Service
metadata:
  name: hello-python-service
spec:
  selector:
    app: hello-python
  ports:
  - protocol: "TCP"
    port: 8000   <---
    targetPort: 5000
  type: LoadBalancer

如果将其更改为 8000，则改用 localhost:8000 即可。

---

迷你库

Minikube 不支持 LB 外部 IP。

On cloud providers that support load balancers, an external IP address would be provisioned to access the Service. On minikube, the LoadBalancer type makes the Service accessible through the minikube service command.

因此，如果您使用 minikube，请尝试使用 minikube 服务。

有相关documentation举个例子。