ExternalName类型Service

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: test3
  namespace: test3
spec:
  ingressClassName: private-nginx
  rules:
  - host: test3.yaohong.com
    http:
      paths:
        - path: /
          pathType: ImplementationSpecific
          backend:
            service:
              name: canary-external-name
              port:
                number: 80
---
apiVersion: v1
kind: Service
metadata:
  namespace: test3
  name: canary-external-name
spec:
  type: ExternalName
  externalName: canary.canary.svc.cluster.local