# ingress.yaml
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
 name: app-ingress
spec:
 rules:
   - host: app1.com
     http:
       paths:
         - path: /
           pathType: Prefix
           backend:
             service:
               name: app1
               port:
                 number: 80
   - host: app2.com
     http:
       paths:
         - path: /
           pathType: Prefix
           backend:
             service:
               name: app2
               port:
                 number: 80
   - http:  # No "host" means this rule catches all unmatched requests
      paths:
         - path: /
           pathType: Prefix
           backend:
             service:
               name: app3
               port:
                 number: 80