docker-compose.yml

version: "3.6"

networks:
  frontend:
    name: frontend
    driver: bridge
  backend:
    name: backend
    driver: bridge
  traefik:
    name: traefik
    driver: bridge
    external: true

services:
  # -------------------
  #        NGINX
  # -------------------
  nginx:
    container_name: nginx
    build: 
      context: ./
      dockerfile: ./frontend/Dockerfile
    networks:
      - frontend
      - backend
      - traefik
    labels:
      # ---------------------- expose application through Traefik
      - "traefik.enable=true"
      - "traefik.http.routers.nginx.rule=Host(`${CLIENT_DOMAIN_NAME}`)"


  # -------------------
  #      TRAEFIK
  # -------------------
  traefik:
    image: traefik:latest
    ports:
      - "80:80" 
      - "443:443"
      - "8080:8080"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro # for starting / stopping containers, and inspecting their labels for Traefik instructions
      - ./traefik/traefik.yml:/etc/traefik/traefik.yml
      - ./traefik/dynamic.yml:/etc/traefik/dynamic.yml
    networks:
      - traefik
    labels:
      # ---------------------- CORS
      - "traefik.http.middlewares.corsMiddleware3.headers.accesscontrolalloworiginlist=*"
      - "traefik.http.middlewares.corsMiddleware3.headers.customResponseHeaders.Access-Control-Allow-Origin=*"
      - "traefik.http.routers.traefik.middlewares=corsMiddleware3"


  # -------------------
  #       NODEJS
  # -------------------
  node:
    image: node:18
    build: 
      context: ./backend
    volumes:
      - ./backend:/app:cached
    depends_on:
      - nginx
      - traefik
    networks:
      - frontend
      - backend
      - traefik
    labels:
      # ---------------------- expose application through Traefik
      - "traefik.enable=true"
      - "traefik.http.routers.node.rule=Host(`backend-${CLIENT_DOMAIN_NAME}`)"
      # ---------------------- CORS
      - "traefik.http.middlewares.corsMiddleware.headers.accesscontrolallowheaders=X-Requested-With, Content-Type, Content-Length, Authorization"
      - "traefik.http.middlewares.corsMiddleware.headers.accesscontrolalloworiginlist=*"
      - "traefik.http.middlewares.corsMiddleware.headers.accesscontrolallowmethods=GET, POST, OPTIONS"
      - "traefik.http.middlewares.corsMiddleware.headers.accesscontrolmaxage=120"
      - "traefik.http.middlewares.corsMiddleware.headers.addvaryheader=true"
      - "traefik.http.routers.node.middlewares=corsMiddleware"