docker-compose.yml

version: '2.1'

services:
    mysql:
        build: ./db_docker
        environment:
           # - MYSQL_ALLOW_EMPTY_PASSWORD=yes
            MYSQL_ROOT_PASSWORD: ''
            MYSQL_DATABASE: goodreads
        healthcheck:
            test: "exit 0"
    web:
        build: .
        depends_on:
            mysql:
                condition: service_healthy
        ports:
            - 3002:3002
        environment:
            WAIT_HOSTS: mysql:3306


# version: "3"

# services:
#     db:
#       image: mysql
#       environment:
#         MYSQL_ROOT_PASSWORD: null
#         MYSQL_DATABASE: 'goodreads'
#       ports:
#         - "3306:3306"
#     web:
#       build: .
#       depends_on:
#         - mysql
#       ports:
#         - "3002:3002"



#version: '2'
#services:
 # mysql:
  #  container_name: flask_mysql
   # restart: always
    #image: mysql:latest
    #environment:
     # MYSQL_ROOT_PASSWORD: 'test_pass' # TODO: Change this
      #MYSQL_USER: 'test'
      #MYSQL_PASS: 'pass'
    #volumes:
     # - my-datavolume:/var/lib/mysql
#volumes:
 # my-datavolume:



#mysqldb:
#        image: mysql
#         container_name: ${MYSQL_HOST}
#         restart: always
#         environment:
#             - MYSQL_DATABASE=${MYSQL_DATABASE}
#             - MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}
#             - MYSQL_USER=${MYSQL_USER}
#             - MYSQL_PASSWORD=${MYSQL_PASSWORD}
#         ports:
#             - "3306:3306"
#         volumes:
# - "./data/db/mysql:/var/lib/mysql"
#https://stackoverflow.com/questions/47949221/separate-mysql-docker-container