instruction: Create a comprehensive Dockerfile for networking applications with best practices
output: ```dockerfile
  From Message
   ---- ------ ---- ---- -------
   Normal ADD 35s loadbalancer-controller default/test
  kubectl edit ingress test
  This pops up an editor with the existing configuration in YAML format.
  Modify it to include the new Host:spec:
   rules:
   - host: foo.bar.com
   http:
   paths:
   - backend:
   service:
   name: service1
   port:
   number: 80
   path: /foo
   pathType: Prefix
   - host: bar.baz.com
   http:
   paths:
   - backend:
   service:
   name: service2
   port:
   number: 80
   path: /foo
   pathType: Prefix
  ..
  After you save your changes, kubectl updates the resource in the API server, which tells the
  Ingress controller to reconfigure the load balancer.Verify this:kubectl describe ingress test
  Name: test
  Namespace: default
  Address: 178.91.123.132
  Default backend: default-http-backend:80 (10.8.2.3:8080)
  Rules:
   Host Path Backends
   ---- ---- --------
   foo.bar.com
   /foo service1:80 (10.8.0.90:80)
   bar.baz.com
   /foo service2:80 (10.8.0.91:80)
  Annotations:
   nginx.ingress.kubernetes.io/rewrite-target: /
  Events:
   Type Reason Age
  ```