Simple Docker-Compose.yml for a MySQL database. Uses the same naming convention as Laravel .env files.

.env

DB_PASSWORD=veryverysecure
DB_DATABASE=testdb
DB_USERNAME=kimmie
DB_PORT=3306

docker-compose.yml

services:
  mysql:
    image: 'mysql/mysql-server:latest'
    ports:
      - '${DB_PORT:-3306}:3306'
    environment:
      MYSQL_ROOT_PASSWORD: '${DB_PASSWORD}'
      MYSQL_ROOT_HOST: '%'
      MYSQL_DATABASE: '${DB_DATABASE}'
      MYSQL_USER: '${DB_USERNAME}'
      MYSQL_PASSWORD: '${DB_PASSWORD}'
      MYSQL_ALLOW_EMPTY_PASSWORD: 1
    volumes:
      - 'mysql:/var/lib/mysql'
    networks:
      - default
    healthcheck:
      test:
        - CMD
        - mysqladmin
        - ping
        - '-p${DB_PASSWORD}'
      retries: 3
      timeout: 5s
networks:
  default:
    driver: bridge
volumes:
  mysql:
    driver: local