The use of the connector (---) of the yml configuration file

Let's look at an example:

spring:
  application:
    name: cms-discovery-eureka-ha
---
spring:
  profiles: peer1                                 server:
  port: 9092
eureka:
  instance:
    hostname: peer1                              client:
    serviceUrl:
      defaultZone: http://peer2:9093/eureka/      ---
spring:
  profiles: peer2
server:
  port: 9093
eureka:
  instance:
    hostname: peer2
  client:
    serviceUrl:
      defaultZone: http://peer1:9092/eureka/

  

How to use: If the generated package is named cms-eureka-ha.jar

java -jar  cms-eureka-ha.jar  --spring.profiles.active=peer1

java -jar  cms-eureka-ha.jar  --spring.profiles.active=peer2

Specify which profile to use to start with spring.profiles.active.

Recommended articles: https://my.oschina.net/u/2278977/blog/807958