application.properties

spring.datasource.url=jdbc:mysql://master:3306/?useSSL=false&useUnicode=true&characterEncoding=UTF-8
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.username=root
spring.datasource.password=123456

spring.datasource.hikari.maximum-pool-size=10
spring.datasource.hikari.minimum-idle=10
spring.datasource.hikari.max-lifetime=600000