instruction: Create a comprehensive Dockerfile for networking applications with best practices
output: ```dockerfile
  from before is used, but the API and React apps are now running natively on the host machine.
  To accomplish this, Traefik will need to use another method to configure itself. The File provider lets you define the routing rules in a YAML document. Here is an example file:
  
  http:
   routers:
   native-api:
   rule: "Host(`localhost`) && PathPrefix(`/api`)"
   service: native-api
   native-client:
   rule: "Host(`localhost`)"
   service: native-client
  
   services:
   native-api:
   loadBalancer:
   servers:
   - url: "http://host.docker.internal:3000/"
   native-client:
   loadBalancer:
   servers:
   - url: "http://host.docker.internal:5173/"This configuration indicates that requests that for localhost/api will be forwarded to a service named native-api, which then forwards the request to http://host.docker.internal:3000. The hostname host.docker.internal is a name that Docker Desktop provides to send requests to the host machine.With this file, the only change is to the Compose configuration for Traefik. There are specifically two things that have changed:The configuration file is mounted into the Traefik container (the exact destination path is up to you)The command is updated to add the file provider and point to the location of the configuration file
  
  services:
   proxy:
   image: traefik:v3.1.2
   command: --providers.docker --providers.file.filename=/config/traefik-config.yaml --api.insecure
   ports:
   - 80:80
   - 8080:8080
   volumes:
   - /var/run/docker.sock:/var/run/docker.sock
   - ./dev/traefik-config.yaml:/config/traefik-config.yamlStarting the example appTo run the example app that forwards requests
  ```