kubernetes - 警告 : Rejected - All hosts are taken by other resources

Question

我正在尝试设置 Nginx-ingress Controller 来管理基于裸机的集群中同一主机名 上的两个路径。

在 app1 命名空间中，我有以下 nginx 资源:-

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: app1-ingress
  namespace: app1
spec:
  ingressClassName: nginx
  rules:
  - host: web.example.com
    http:
      paths:
      - path: /app1
        pathType: Prefix
        backend:
          service:
            name: app1-service
            port:
              number: 80

在 app2 命名空间中，我有以下 nginx 资源:-

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: app2-ingress
  namespace: app2
spec:
  ingressClassName: nginx
  rules:
  - host: web.example.com
    http:
      paths:
      - path: /app2
        pathType: Prefix
        backend:
          service:
            name: app2-service
            port:
              number: 80

我的 app1-service 首先应用，并且运行良好，现在当我应用第二个 app2-service 时，它显示以下警告，并且无法在浏览器上访问它.

Annotations:       <none>
Events:
  Type     Reason    Age   From                      Message
  ----     ------    ----  ----                      -------
  Warning  Rejected  54s   nginx-ingress-controller  All hosts are taken by other resources
  Warning  Rejected  54s   nginx-ingress-controller  All hosts are taken by other resources
  Warning  Rejected  54s   nginx-ingress-controller  All hosts are taken by other resources

如何配置 nginx 入口资源以连接同一主机名上的多个服务路径？

Answer 1

默认的 Nginx Ingress Controller 不支持具有相同主机名的不同 Ingress 资源。您可以拥有一个包含多个路径的 Ingress 资源，但在这种情况下，所有应用都应位于同一个命名空间中。像这样:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: app1-ingress
  namespace: app1
spec:
  ingressClassName: nginx
  rules:
  - host: web.example.com
    http:
      paths:
      - path: /app1
        pathType: Prefix
        backend:
          service:
            name: app1-service
            port:
              number: 80
      - path: /app2
        pathType: Prefix
        backend:
          service:
            name: app2-service
            port:
              number: 80

标准 Nginx Ingress Controller 当前不支持在命名空间之间拆分入口。

但是，您可以查看 Nginx Ingress 的替代实现由 Nginx Inc. 他们支持 Mergeable Ingresses .