Docker compose for Spring Boot with MariaDB

docker-compose.yml

#version: "3.7"
#services:
#  api_service:
#    build: .
#    restart: always
#    ports:
#      - 8080:8080
#    depends_on:
#      - maria_db
#    links:
#      - maria_db:app_db
#  maria_db:
#    image: "mariadb:10.5.8"
#    restart: always
#    ports:
#      - 3307:3306
#    environment:
#      MYSQL_DATABASE: java_to_dev_app_db
#      MYSQL_USER: java_to_dev
#      MYSQL_PASSWORD: nE5kMc7JCGNqwDQM
#      MYSQL_ROOT_PASSWORD: nE5kMc7JCGNqwDQN

version: "3.7"
services:
  api_service:
    build: .
    restart: always
    ports:
      - 8080:8080
    depends_on:
      - maria_db
    command: sh -c './wait-for mysql_db:3306 -- npm start'
  maria_db:
    image: "mariadb:10.5.8"
    restart: always
    ports:
      - 3307:3306
    environment:
      MYSQL_DATABASE: java_to_dev_app_db
      MYSQL_USER: java_to_dev
      MYSQL_PASSWORD: nE5kMc7JCGNqwDQM
      MYSQL_ROOT_PASSWORD: nE5kMc7JCGNqwDQN