docker-compose.yml
version: '3.9'
services:
postgres:
image: postgres:10
environment:
POSTGRES_USER: postgres
POSTGRES_DB: acts_as_taggable_on
POSTGRES_PASSWORD: postgres
ports: ['5432:5432']
mysql:
image: mysql:8
environment:
MYSQL_ALLOW_EMPTY_PASSWORD: true
MYSQL_DATABASE: acts_as_taggable_on
ports: ['3306:3306']