Why Spring cloud is required?

Spring Cloud

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Previously we developed microservices using Spring Boot. These were all stand alone applications. But suppose we now have to connect the various applications and build a distributed system.

Why Spring cloud is required?

When developing distributed microservices with Spring Boot we face the following issues-

• Complexity associated with distributed systems-
  This overhead includes network issues, Latency overhead, Bandwidth issues, security issues.
• Service Discovery-
  Service discovery tools manage how processes and services in a cluster can find and talk to one another. It involves a directory of services, registering services in that directory, and then being able to lookup and connect to services in that directory.
• Redundancy-
  Redundancy issues in distributed systems.
• Loadbalancing-
  Load balancing improves the distribution of workloads across multiple computing resources, such as computers, a computer cluster, network links, central processing units, or disk drives.
• Performance issues-
  Performance issues due to various operational overheads.
• Deployment complexities-
  Requirement of Devops skills.

Spring Cloud Tutorials

Microservice Registration and Discovery with Spring cloud using Netflix Eureka- Part 1 
Develop a Eureka server using Spring Boot and register an application to it.

Microservice Registration and Discovery with Spring cloud using Netflix Eureka - Part 2 
Develop microservices with REST APIs for producing and consuming.

Microservice Registration and Discovery with Spring cloud using Netflix Eureka - Part 3 
Develop Eureka Server Microservice and register the employee-producer code to it.

Microservice Registration and Discovery with Spring cloud using Netflix Eureka - Part 4 
Develop Eureka Server Microservice and use discovery service for employee-consumer.

Spring Cloud- Netflix Eureka + Ribbon Simple Example 
Implement Load Balancing using Neflix Ribbon.

Spring Cloud- Netflix Eureka + Ribbon + Hystrix Simple Example 
Implement Fault Tolerance using Neflix Hystrix.

Spring Cloud- Netflix Hystrix Circuit Breaker Simple Example 
Implement Circuit Breaker using Netflix Hystrix.

Spring Cloud- Netflix Feign Simple Example 
Implement REST Client using Netflix Feign.

Spring Cloud- Netflix Zuul Simple Example 
Implement Netflix Zuul Gateway.

Spring Cloud Config Server Simple Example 
Implement Spring Cloud Config Server in native mode.

Spring Cloud Config Server Using Git Simple Example 
Implement Spring Cloud Config Server Using Git.

Spring Boot Admin Simple Example 
Implement Admin UI using Spring Boot Admin

Spring Cloud Stream - RabbitMQ Publish Message Example 
We implement a simple example to publish message to RabbitMQ messaging using Spring Cloud Stream

Spring Cloud Stream - RabbitMQ Consume Message Example 
We implement a simple example to consume message from RabbitMQ messaging using Spring Cloud Stream

Spring Cloud Tutorial - Publish Events Using Spring Cloud Bus 
Spring Cloud Bus provides feature to refresh configurations across multiple instances

Spring Cloud Tutorial - Stream Processing Using Spring Cloud Data Flow 
Implement Spring Cloud Data Flow and understand its concepts.