nodejs + mysql compose setup

docker-compose.yml

version: '3'

services:
  app:
    image: node:latest
    restart: on-failure
    depends_on:
      - db
    ports: # map container ports to host ports. format is <HOST_PORT>:<CONTAINER_PORT>
      - "12367:80"
    volumes:
      - ./server:/server # Mounts your nodejs server code at the container location /server
    # Define the command to start the server code
    command: node /server/run.js
  
  # Defines a database service. You can connect to the service
  # from `app` by simply connecting to the hostname `db`
  db:
    image: mysql:latest
    volumes:
      - ./data/db:/var/lib/mysql # mounts MySQL data directory within the container to host directory `./data/db`
    restart: on-failure
    environment:
      MYSQL_ROOT_PASSWORD: abc
      MYSQL_DATABASE: mydb
      MYSQL_USER: admin
      MYSQL_PASSWORD: password