• Pivotal Web Services account
• Feature c2c enabled on PWS
• Feature SCS (Spring Cloud Services) enabled on PWS
• CloudFoundry CLI
• SpringBoot CLI + Spring Cloud CLI

Start both an Eureka & Hystrix Dashboard instances with Spring Cloud CLI

spring cloud eureka hystrixdashboard

# Compiles both services
$ mvn clean package

# Starts the downstream service
$ cd travel-service
$ mvn spring-boot:run

# Starts the client
$ cd travel-client
$ mvn spring-boot:run

You can start the apps from your IDE or a terminal.

Open the url http://localhost:8761 in a browser, you will see the 2 services registered in Eureka.

Click on the travel-client and open the /destinations endpoint, you will receive a list of destinations coming from the downstream service travel-service.

On PWS, go to the marketplace and create a Service Registry service.

On PWS, go to the marketplace and create a Circuit Breaker service.

$ mvn clean package
$ cf push

Once the 2 applications are deployed and running, you cannot access the travel-service from the travel-client. You must allow the connection with the following command:

$ cf add-network-policy travel-client --destination-app travel-service --protocol tcp --port 8080

In the Service Registry service, you will see your 2 registered apps.

Try to query the travel-client destinations endpoints. The route is set to generate a random url, so you will have to get it from your environment.

You have to add this two new dependencies into your pom.xml file:

<!-- Replacement for spring-cloud-starter-eureka -->
<dependency>
    <groupId>io.pivotal.spring.cloud</groupId>
    <artifactId>spring-cloud-services-starter-service-registry</artifactId>
    <version>1.4.1.RELEASE</version>
</dependency>

<!-- Replacement for spring-cloud-starter-hystrix -->
<dependency>
    <groupId>io.pivotal.spring.cloud</groupId>
    <artifactId>spring-cloud-services-starter-circuit-breaker</artifactId>
    <version>1.4.1.RELEASE</version>
</dependency>

To register to SCS Eureka, you have to register with the direct method:

spring:
  cloud:
    services:
      registrationMethod: direct

By default Hystrix will not be enabled when using Feign. You can declare a Bean for HystrixFeign.builder() or simply turn it on via the following property:

feign:

  hystrix:

    enabled: true


To be able to register to the Service Registery service on PWS, you need a using a self-signed SSL certificate. To do so, you have to set a TRUST_CERTS environment variable per application. You can use the one in my manifest.yml deployment file or the following command line:

$ cf set-env travel-client TRUST_CERTS api.run.pivotal.io
$ cf set-env travel-service TRUST_CERTS api.run.pivotal.io

NOTE

Using the Spring Cloud Services Starters for Service Registry will make all application endpoints secured. You should use your own authentication system or disable it like I did in my examples (NOT recommended) with:

security:
  basic:
    enabled: false

If you want to learn more, check out my blog

Thanks to this Pivotal blog post that helped me getting started.