没有IP地址的入口 [英] Ingress without ip address

问题描述

我创建了一个入口以公开我的内部服务.

I create a ingress to expose my internal service.

apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  name: app-ingress
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
    - host: example.com
      http:
        paths:
        - path: /app
          backend:
            serviceName: my-app
            servicePort: 80

但是当我尝试获取此入口时，表明它没有IP地址.

But when I try to get this ingress, it show it has not ip address.

NAME          HOSTS                ADDRESS   PORTS   AGE
app-ingress   example.com                    80      10h

服务显示在下面.

apiVersion: v1
kind: Service
metadata:
  name: my-app
spec:
  selector:
    app: my-app
  ports:
  - name: my-app
    nodePort: 32000
    port: 3000
    targetPort: 3000
  type: NodePort

推荐答案

注意:我猜是因为您问的其他问题，您正在尝试使用kubeadm在手动创建的集群上创建入口.

Note: I'm guessing because of the other question you asked that you are trying to create an ingress on a manually created cluster with kubeadm.

如文档中所述，以便进入要正常工作，您需要先安装入口控制器.入口对象本身只是已安装的入口控制器的配置片.

As described in the docs, in order for ingress to work, you need to install ingress controller first. An ingress object itself is merely a configuration slice for the installed ingress controller.

基于Nginx的控制器是最受欢迎的选择之一.与服务类似，为了获得单个启用故障转移的VIP，您需要使用 MetalLB .否则，您可以在节点端口上部署ingress-nginx:在此处中查看详细信息

Nginx based controller is one of the most popular choice. Similarly to services, in order to get a single failover-enabled VIP for your ingress, you need to use MetalLB. Otherwise you can deploy ingress-nginx over a node port: see details here

最后，入口对象中的servicePort应该为3000，与服务的port相同.

Finally, servicePort in your ingress object should be 3000, same as port of your service.

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