In a micro-services architecture, managing properties for applications across multiple environments can prove to be challenging. Keeping track of variations, versions and environment specific properties necessitates a configuration management process that eases this burden. Having a central place to manage properties for all applications across all environments is crucial to meet these requirements.
Modern Application Development
Overcome challenges in modern application development with pre-packaged enterprise components from Tanzu geared towards distributed architectures.
Centralized Configuration
Solution
Spring Cloud Config is an OSS library that provides support for externalized configuration in a distributed system. It includes support for a number of backends, including Git, HashiCorp Vault, and CredHub.
Spring Cloud Services for VMware Tanzu packages an enterprise-ready implementation of Spring Cloud Config’s server-side components as a Tanzu Platform for Cloud Foundry enabled managed service. The Spring Cloud Config Server service integrates with the underlying platform to generate secure communication between client applications that are bound to a service instance.Its architecture is designed to minimize calls from the Config Server to external Git servers for the Git backend and to give operators greater control over the data fetched and served by the Config Server. Each of the Spring Cloud Services services has a corresponding Spring Boot starter. Similar to a Spring Cloud OSS project, a Spring Cloud Services starter bundles the dependencies used by a client app to consume the service, thus keeping the same programming model when working with the VMware Tanzu components.
Service Discovery
Challenge
A modern cloud-native application typically runs in a virtualized or containerized environment where the number of instances of an application service and each instance’s location changes dynamically. This can also be scaled across multiple availability zones to achieve higher availability of those services. How do clients of these services discover the location of a service instance in this type of dynamic environment?
Solution
Spring Cloud Netflix is an OSS library that provides Netflix Eureka integration for Spring Boot apps through auto-configuration and binding to the Spring Environment and other Spring programming model idioms. With a few simple annotations, you can quickly enable and configure the service discovery pattern for your distributed applications with battle-tested Netflix components.
Spring Cloud Services for VMware Tanzu packages the enterprise-ready implementation of Spring Cloud Netflix Eureka as a Tanzu Platform for Cloud Foundry enabled managed service named Service Registry. The Spring Cloud Service Registry service integrates with the underlying platform to generate secure communication between client applications that are bound to a service instance. This service can also be scaled across multiple instances to share service locations across availability zones using peer replication. Similar to the Config Server, there is a Spring Cloud Services starter for Eureka which bundles the dependencies used by a client app to consume the service.