Sunday, April 18, 2021

Javabrains POC - Microservices - Part 2 [ Netflix OSS]

https://jsonplaceholder.typicode.com/posts/


https://spring.io/projects/spring-cloud-netflix

Spring Cloud Azure
Spring Cloud for Amazon Web Services
Spring Cloud GCP
Spring Cloud Netflix [Ribbon, Feign, Eureka]
Spring Cloud Kubernetes
Spring Cloud Gateway
Spring Cloud Circuit Breaker
Spring Cloud Config
Spring Cloud OpenFeign
Spring Cloud Consul
Spring Cloud Vault
Spring Cloud Zookeeper

Spring Cloud Netflix OSS 
Feign - Declarative HTTP Client
Eureka - Service Register and Discovery
Ribbon - Client Side Load Balancing
Hytrix - Fault Tolerance Library

Spring Cloud Netflix features:

  • Service Discovery: Eureka instances can be registered and clients can discover the instances using Spring-managed beans

  • Service Discovery: an embedded Eureka server can be created with declarative Java configuration

  • Circuit Breaker: Hystrix clients can be built with a simple annotation-driven method decorator

  • Circuit Breaker: embedded Hystrix dashboard with declarative Java configuration

  • Declarative REST Client: Feign creates a dynamic implementation of an interface decorated with JAX-RS or Spring MVC annotations

  • Client Side Load Balancer: Ribbon

  • External Configuration: a bridge from the Spring Environment to Archaius (enables native configuration of Netflix components using Spring Boot conventions)

  • Router and Filter: automatic registration of Zuul filters, and a simple convention over configuration approach to reverse proxy creation


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Release TrainBoot Version

2020.0.x aka Ilford

2.4.x

Hoxton

2.2.x, 2.3.x (Starting with SR5)

Greenwich

2.1.x

Finchley

2.0.x

Edgware

1.5.x

Dalston

1.5.x


<dependency>
   <groupId>org.springframework.cloud</groupId>
   <artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
</dependency>

This is happening because http://microservice_provider_user/ is not a legal host name.

Don't use Underscore for Hostnames


Using Ribbon with Eureka
Use Ribbon Without Eureka
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Feign

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