Criar banco ao iniciar com docker-compose

Meu Dockerfile

FROM ribafs/ubuntu-maria
ENV MYSQL_ROOT_PASSWORD root
ENV MYSQL_ROOT_DATABASE testes
RUN apt-get update
EXPOSE 3306
ADD ["script.sql", "/tmp/script.sql"] # Cria o banco e muda a senha para vazia
CMD ["start-mysql"]
RUN mysql -uroot -p${MYSQL_ROOT_PASSWORD} -e "CREATE DATABASE testes"
RUN mysql -uroot -p${MYSQL_ROOT_PASSWORD} -D testes < /tmp/script.sql

Meu docker-compose.yml

version: "3.3"
networks:
  web:
    driver: bridge
services:
  web:
    image: ribafs/ubuntu-php
    container_name: web
    build:
      context: web
      dockerfile: Dockerfile
    ports: # <Port exposed> : < MySQL Port running inside container>
      - "80:80" 
      - "443:443"
    expose: # Opens port 3306 on the container
      - "80"
      - "443"
    volumes:
      - ".:/var/www/html/"
    environment:
      - APP_DEBUG=true
    read_only: false
    privileged: true
    links:
      - mariadb
    networks:
      - web
    command: 'bash'
  mariadb:
    image: ribafs/ubuntu-maria
    command: --default-authentication-plugin=mysql_native_password
    container_name: maria
    build:
      context: maria
      dockerfile: Dockerfile
    restart: always
    ports:
      - "3306:3306"
    command: --init-file maria/script.sql
    expose: # Opens port 3306 on the container
      - "3306" 
    volumes:
      - ./maria/script.sql:/data/application/init.sql
      - persistent:/var/lib/mysql/
    read_only: false
    privileged: true
    environment:
      MYSQL_ROOT_PASSWORD: 'root'
      MYSQL_DATABASE: 'testes'
      MYSQL_PORT: 3306
    networks:
      - web
    command: 'bash'
    tty: true
volumes:
  persistent:

Quando executo

docker run web bash

Ele para na linha

RUN mysql -uroot -p${MYSQL_ROOT_PASSWORD} -e "CREATE DATABASE testes"

Também não inicia o mysql

Mesmo eu comentando as 2 últimas linhas ainda não inicia.
Agradeço qualquer ajuda.