Setting up Spring Cloud Gateway

Setting up Spring Cloud Gateway as an edge server is straightforward and can be done with the following steps:

1. Create a Spring Boot project using Spring Initializr as described in Chapter 3, Creating a Set of Cooperating Microservices – refer to the Using Spring Initializr to generate skeleton code section.
2. Add a dependency on spring-cloud-starter-gateway.
3. To be able to locate microservice instances through Netflix Eureka, also add the spring-cloud-starter-netflix-eureka-client dependency.
4. Add the edge server project to the common build file, settings.gradle:

include ':spring-cloud:gateway'

1. Add a Dockerfile with the same content as for the microservices; see Dockerfile content in the folder $BOOK_HOME/Chapter10/microservices.
2. Add the edge server to our three Docker Compose files:

gateway:
  environment:
    - SPRING_PROFILES_ACTIVE=docker
  build: spring-cloud/gateway
  mem_limit: 512m
  ports:
    - "8080:8080"

From the...