1.

How to stop a Spring Boot based microservices at startup if it can not connect to the Config server during bootstrap?

Answer»

If you want to halt the service when it is not ABLE to locate the CONFIG-server during bootstrap, then you need to configure the following property in microservice’s bootstrap.yml: 

spring:       cloud:          config:              fail-fast: true

Using this configuration will make microservice startup fail with an exception when config-server is not reachable during bootstrap.

We can enable a retry MECHANISM where microservice will retry 6 times before THROWING an exception. We just need to ADD spring-retry and spring-boot-starter-aop to the classpath to enable this feature. 

build.gradle:- 

...  dependencies {    compile('org.springframework.boot:spring-boot-starter-aop')    compile('org.springframework.retry:spring-retry')    ... }


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