docs/redmine/docker-compose.yml

version: '2'

services:

  redmine:
    image: redmine
    ports:
      - 8080:3000
    environment:
      REDMINE_DB_MYSQL: db
      REDMINE_DB_PASSWORD: example
    depends_on:
      - db
    restart: always

  db:
    image: mariadb
    environment:
      MYSQL_ROOT_PASSWORD: example
      MYSQL_DATABASE: redmine
    restart: always