Sample Docker Compose file for a simple WordPress setup

docker-compose.yml

version: '2' #The Docker Compose file format version to be used

services:
  database: #The name of the container, you can name this whatever you want.
    image: mysql:latest #The image you are pulling into the container
    environment:
      MYSQL_ROOT_PASSWORD: tacos
      MYSQL_DATABASE: tacos
      MYSQL_USER: tacos
      MYSQL_PASSWORD: tacos

  wordpress: #The name of the container, you can name this whatever you want.
    image: wordpress:latest #Pulling latest wordpress image
    depends_on: #Define dependencies (i.e. Wordpress needs a database)
      - database
    ports: #Exposing ports to access the container
      - "8080:80"
    environment:
      WORDPRESS_DB_HOST: database:3306 #port 3305 for MySQL
      WORDPRESS_DB_PASSWORD: tacos