The bean 'dataSource', defined in BeanDefinition defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$H

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See the section “Release Trains” on the Spring Cloud homepage:

In application.properties

spring.main.allow-bean-definition-overriding=true

Please see and add the last 2 lines inside your application.yml:

spring:
  datasource:
#    type: com.zaxxer.hikari.HikariDataSource
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/test
    username: root
    password: root

  jpa:
    hibernate:
      ddl-auto: update
    show-sql: true
  main:
    allow-bean-definition-overriding: true