How to reach localhost on host from docker container?

Docker Engine Compose
14

Hello,
another simple and useful solution to resolve this problem with Compose is to use “network aliases” : Networking in Compose | Docker Documentation

version: "3.7"

services:
  api:
    links:
      - nginx:api.localhost
  nginx:

With that aliases, “nginx” container will be reachable from “api” container on http://api.localhost.
No need to update “/etc/hosts” inside “api” container.