docker-compose.yml

version: '3'

services:
  nginx-proxy:
    image: jwilder/nginx-proxy
    ports:
      - 8080:80
    volumes:
      - /var/run/docker.sock:/tmp/docker.sock:ro

  weba:
    build:
      context: web/a
    expose:
      - 8081
    environment:
      - VIRTUAL_HOST=a.localhost
    depends_on:
      - nginx-proxy
  webb:
    build:
      context: web/b
    expose:
      - 8082
    environment:
      - VIRTUAL_HOST=b.localhost
    depends_on:
      - nginx-proxy
  webc:
    build:
      context: web/generic
    expose:
      - 8080
    environment:
      - VIRTUAL_HOST=c.localhost
      - WEB_MESSAGE=Web C from generic
      - WEB_NAME=D
      - WEB_PORT=8080
    depends_on:
      - nginx-proxy
  webd:
    build:
      context: web/generic
    expose:
      - 8080
    environment:
      - VIRTUAL_HOST=d.localhost
      - WEB_MESSAGE=Web D from generic
      - WEB_NAME=D
      - WEB_PORT=8080
    depends_on:
      - nginx-proxy