This compose file runs a wordpress instance with 2 fpm and 2 nginx backend nodes, 1 varnish node and 1 nginx frontend node.

docker-compose.yml

version: '2'
services:
  memcached1:
    image: memcached:latest
    container_name: memcached1
    hostname: memcached1
    restart: always
    networks:
      - cache

  db1:
    image: mariadb:latest
    container_name: db1
    hostname: db1
    restart: always
    networks:
      - database
    volumes:
      - ./.data/test.windegger.wtf/mysql:/var/lib/mysql:rw
    environment:
      MYSQL_ROOT_PASSWORD: YourSecurePassword

  fpm1:
    depends_on:
      - db1
      - memcached1
    image: rwindegger/wordpress:latest
    container_name: fpm1
    hostname: fpm1
    restart: always
    networks:
      - database
      - cache
      - php
    links:
      - db1:mysql
    volumes:
      - ./.data/test.windegger.wtf/storage:/var/www/html:rw
    environment:
      WORDPRESS_DB_PASSWORD: YourSecurePassword
      WORDPRESS_DB_NAME: test
      FPM_HOST: php

  fpm2:
    depends_on:
      - db1
      - memcached1
    image: rwindegger/wordpress:latest
    container_name: fpm2
    hostname: fpm2
    restart: always
    networks:
      - database
      - cache
      - php
    links:
      - db1:mysql
    volumes:
      - ./.data/test.windegger.wtf/storage:/var/www/html:rw
    environment:
      WORDPRESS_DB_PASSWORD: YourSecurePassword
      WORDPRESS_DB_NAME: test
      FPM_HOST: php

  nginx1:
    image: rwindegger/nginx-backend:latest
    container_name: nginx1
    hostname: nginx1
    restart: always
    links:
      - fpm1:php
      - fpm2:php
    volumes:
      - /var/run/docker.sock:/tmp/docker.sock:ro
      - ./.data/test.windegger.wtf/storage:/var/www/html:ro
    networks:
      - php
      - backend
    environment:
      BACKEND_HOST: nginx1

  nginx2:
    image: rwindegger/nginx-backend:latest
    container_name: nginx2
    hostname: nginx2
    restart: always
    links:
      - fpm1:php
      - fpm2:php
    volumes:
      - /var/run/docker.sock:/tmp/docker.sock:ro
      - ./.data/test.windegger.wtf/storage:/var/www/html:ro
    networks:
      - php
      - backend
    environment:
      BACKEND_HOST: nginx2

  varnish1:
    image: rwindegger/varnish
    container_name: varnish1
    hostname: varnish1
    restart: always
    links:
      - nginx1:backend
      - nginx2:backend
    volumes:
      - /var/run/docker.sock:/tmp/docker.sock:ro
    networks:
      - backend
      - frontend
    environment:
      VIRTUAL_HOST: test.windegger.wtf

  dbm1:
    depends_on:
      - db1
    image: phpmyadmin/phpmyadmin:latest
    container_name: dbm1
    hostname: dbm1
    restart: always
    networks:
      - database
      - frontend
    links:
      - db1:db
    environment:
      VIRTUAL_HOST: dbm.test.windegger.wtf

  frontend1:
    image: rwindegger/nginx-frontend:latest
    container_name: frontend1
    hostname: frontend1
    restart: always
    networks:
      - frontend
    ports:
      - 80:80
      - 443:443
    volumes:
      - "/var/run/docker.sock:/tmp/docker.sock:ro"
      - "./.data/frontend/certs:/opt/certs"
      - "./.data/frontend/htpasswd:/opt/nginx/conf/htpasswd"
      - "./.data/frontend/vhost.d:/opt/nginx/conf/vhost.d"

networks:
  database:
    driver: bridge
  cache:
    driver: bridge
  php:
    driver: bridge
  backend:
    driver: bridge
  frontend:
    driver: bridge