问题描述
上下文
我在裸机服务器(4个节点)上安装了 Kubernetes ，并将 Zero部署到JupyterHub .这很好用；我可以从主节点正确访问集线器.
I installed Kubernetes on a bare-metal server (4 nodes) and deployed Zero to JupyterHub to it.This works fine; I can correctly access the hub from the master-node.
现在，我想通过以太网从外部计算机访问服务器上的集线器.因此，我遵循了官方说明并安装了 MetalLB 以便为我的 proxy-public 服务提供外部IP(该IP正确设置).
此外，为了能够进行入侵，我安装了 nginx-ingress-controller ，也可以成功获取外部IP(小提示:使用 Helm 图表；应用其他推荐步骤时，我无法使服务运行).
Now I want to access the Hub on the server from an external computer via Ethernet. Therefore, I followed the official instructions and installed MetalLB in order to provide an external IP for my proxy-public-service (which correctly sets).
Additionally, I installed the nginx-ingress-controller in order to be able to do an ingress, which also successfully gets an external IP (little hint: Use the Helm-chart; I couldn't get the service running when applying the other recommended steps).
由于我在弄清楚如何进行此入口方面遇到了一些麻烦，因此下面是一个示例:
Since I had a little trouble figuring out how to do this ingress, here is an example:
kubectl apply -f ingress.yaml --namespace jhub
#ingress.yaml:
#apiVersion: networking.k8s.io/v1beta1
#kind: Ingress
#metadata:
# name: jupyterhub-ingress
# annotations:
# nginx.ingress.kubernetes.io/rewrite-target: /$1
#spec:
# rules:
# - host: jupyterhub.cluster
# http:
# paths:
# - path: /
# backend:
# serviceName: proxy-public
# servicePort: 80
无论如何，我无法打开 proxy-public 提供的外部IP(这意味着我在浏览器中插入了外部IP).
Anyhow, I cannot open the external IP proxy-public provides (meaning I'm inserting the external IP in my browser).
问题
如何通过外部IP远程访问JupyterHub?我想念什么?
How can I remotely access my JupyterHub over the external IP; what am I missing?
推荐答案
我想念这可以通过与 Kubernetes-Dashboard 相同的方法来实现:您必须建立一个开放的ssh-从外部计算机进行连接(因此，打开隧道-> 隧道).
当然，这不是我想到的外部"访问方式，而是针对我的测试环境(也许是您的环境)的一种有效且快速的解决方案.
如何建立此ssh-connect
I missed that this can be achieved in the same way as with the Kubernetes-Dashboard: You have to establish an open ssh-connection (hence, open a tunnel -> tunneling) from the external computer.
Of course this is not the "exernal" access I had in mind, but a working and fast solution for my test-environment (and maybe yours).
How to establish this ssh-connect
首先，获取您的 proxy-public 的外部IP地址:
First, get the external IP-address of your proxy-public:
$: kubectl get services --namespace jhub
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
hub ClusterIP 10.99.241.72 <none> 8081/TCP 95m
proxy-api ClusterIP 10.107.175.27 <none> 8001/TCP 95m
proxy-public LoadBalancer 10.102.171.162 192.168.1.240 80:31976/TCP,443:32568/TCP 95m
注意:外部IP的范围是在我的 MetalLB -config中的 layer2 中定义的.
Note: The range of the external IP was defined in my layer2 in my MetalLB-config.
使用此信息(并假设您使用的是Linux)，打开终端并使用以下命令:
Using this information (and assuming you're on Linux), open a terminal and use the following command:
$ ssh [email protected] -L 8000:192.168.1.240:80
# -L opens a localhost-connection
# [email protected] logs me into my second node with user pi
注意1 :将 localhost:8000 配置为具有 http 的 proxy-public 的targetPort可以是在描述服务并分别查看规格时看到的端口(您也可以在此处获得https的设置):
Note1: That localhost:8000 is configured as targetPort for proxy-public with http can also be seen when you describe the service and take a look at the specs respectively ports (you can also get the settings for https there):
kind: Service
apiVersion: v1
metadata:
name: proxy-public
namespace: jhub
...
spec:
ports:
- name: http
protocol: TCP
port: 80
targetPort: 8000
nodePort: 31976
- name: https
...
最后，在浏览器中输入 http://localhost:8000/-等，您将进入JupyterHub登录页面！
Finally, type http://localhost:8000/ into your browser - et voila, you get to your JupyterHub login-page!
这篇关于通过Kubernetes的入口通过以太网对JupyterHub进行远程访问零的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！