Simple openjdk and mysql docker set-up

docker-compose.yml

version: "3"

services:
  app:
    build:
      dockerfile: Dockerfile
      context: .
  database:
    image: mysql:5.7
    volumes:
      - mysql:/var/lib/mysql
      - ./dump.sql:/docker-entrypoint-initdb.d/1-dump.sql
    environment:
      MYSQL_RANDOM_ROOT_PASSWORD: 1
      MYSQL_DATABASE: qwerty
      MYSQL_USER: qwerty
      MYSQL_PASSWORD: qwerty

volumes:
  mysql:

Dockerfile

FROM openjdk:8u201-jdk-alpine3.9

RUN apk update && apk add mysql-client && rm -f /var/cache/apk/*

ENTRYPOINT ["sh"]

CMD ["-c" , "tail -f /dev/null"]

dump.sql

SELECT 1 + 1