如何通过入口在具有相同主机的 Kubernetes 中公开多个应用程序

Question

我有两个独立的应用程序，我通过 helm 部署并拥有不同的 SCM 存储库。我想使用 Openstack Loadbalancer DNS 通过入口公开它们。我的目标是访问两个应用程序，例如应用程序 1 的主机名：8000 和应用程序2 的主机名：8080。

有没有办法通过 traefik 或 kubernetes 来处理这个问题？

应用 1

service:
  type: NodePort
  port: 8000

networkPolicy:
  enabled: true

ingress:
  enabled: true
  annotations:
    kubernetes.io/ingress.class: traefik
  hosts:
    - host: hostname -> just for example
      paths: [/]
  tls: []

应用 2

service:
  type: NodePort
  port: 8080

networkPolicy:
  enabled: true

ingress:
  enabled: true
  annotations:
    kubernetes.io/ingress.class: traefik
  hosts:
    - host: hostname -> just for example
      paths: [/]
  tls: []

Answer 1

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: samehostexample
  annotations:
    kubernetes.io/ingress.class: traefik
    traefik.frontend.rule.type: PathPrefixStrip
spec:
  rules:
  - host: hostname.com
    http:
      paths:
      - path: /service1path
        backend:
          serviceName: service1
          servicePort: 8000
      - path: /service2path
        backend:
          serviceName: service2
          servicePort: 8080

Answer 2

如果你有一个主机

apiVersion: extensions/v1beta1
    kind: Ingress
    metadata:
      name: staging-ingress
      annotations:
        kubernetes.io/ingress.class: "nginx"
    spec:
      rules:
      - host: test.example.com
        http:
          paths:
          - path: /
            backend:service-1
              servicePort: 80
          - path: /api
            backend:
              serviceName: service-2
              servicePort: 80

多个主机

spec:
  rules:
  - host: test-webapp-example.com
    http:
      paths:
        - path: /
          backend:
            serviceName: test-webapp-example
            servicePort: 80
  - host: test-another-example.com
    http:
      paths:
        - path: /
          backend:
            serviceName: test-webapp-somethingelse
            servicePort: 80