Sample project using Eureka, Zuul, Spring Cloud Config and Spring Boot Admin

Sub-projects

• Eureka server
• Config server
• Gateway
• Resource service
• Boot Admin server

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Run

1. Start Eureka server

   cd <PROJECT_ROOT_FOLDER>/eureka-server
   mvnw clean spring-boot:run
   

2. Start Admin server

   cd <PROJECT_ROOT_FOLDER>/admin-server
   mvnw clean spring-boot:run
   

3. Start Cloud Config server

   cd <PROJECT_ROOT_FOLDER>/config-server
   mvnw clean spring-boot:run
   

4. Start Gateway

   cd <PROJECT_ROOT_FOLDER>/gateway
   mvnw clean spring-boot:run
   

5. Start resource service

   cd <PROJECT_ROOT_FOLDER>/resource-service
   mvnw clean spring-boot:run
   

6. Test if everything works

   curl http://localhost:8080/resource-service/hello
   

Refresh external property

1. Update property file

   cd <PROJECT_ROOT_FOLDER>/config-server/src/main/resources/
   nano resource-service.properties
   ...
   	comment
   		external.property = hello world!
   	uncomment
   		external.property = hello everybody!
   ...
   

2. Restart Cloud Config server

   cd <PROJECT_ROOT_FOLDER>/config-server
   mvnw clean spring-boot:run
   

3. Refresh the resource service (WARN: directly not through the gateway)

   curl -X POST http://localhost:9081/actuator/refresh
   

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TODOs

• discover config server using eureka

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Links

• http://engineering.pivotal.io/post/local-eureka-zuul-cloud_config-with-spring/
• http://cloud.spring.io/spring-cloud-static/Finchley.SR1/single/spring-cloud.html#netflix-zuul-reverse-proxy
• http://cloud.spring.io/spring-cloud-netflix/single/spring-cloud-netflix.html#_why_is_it_so_slow_to_register_a_service
• https://www.devglan.com/spring-cloud/refresh-property-config-runtime