Your organization is standardizing on Spring Boot microservices. You need Azure-native centralized configuration, service discovery, an integrated API gateway for routing, and out-of-the-box distributed tracing/metrics. You also want a fully managed experience without standing up separate OSS components. Which service design should you choose?

The Azure Spring Apps Enterprise tier directly addresses all requirements. It provides fully managed Spring Cloud Config Server for centralized configuration, Spring Cloud Service Registry for service discovery, and Spring Cloud Gateway for API routing. Its built-in observability components offer distributed tracing and metrics out-of-the-box, aligning with the need for a fully managed experience without separate OSS components. Incorrect options: Azure Spring Apps Standard tier with self-managed Eureka and API Management introduces self-management overhead for Eureka and requires integrating a separate API Gateway. Azure Kubernetes Service with custom Spring Boot deployments and self-managed components requires significant operational effort to manage Config Server, service discovery, and ingress. App Service for Containers with self-hosted Spring Cloud components and Application Gateway still necessitates self-management of Spring Cloud components. Service Fabric with Spring Boot containers and custom service discovery lacks the integrated Spring Cloud component management and observability features.