spring-cloud-stream/samples/spring-cloud-stream-schema-registry-integration/mysql.yml

version: '3'
services:
  mysql:
    image: mysql:5.7.25
    container_name: schema-registry-mysql
    environment:
      MYSQL_DATABASE: registry
      MYSQL_USER: root
      MYSQL_ROOT_PASSWORD: rootpw
    expose:
      - 3306
    ports:
      - 3306:3306