MicroServices with Spring
Modules
Spring Cloud
Netflix
Spring Cloud Netflix provides Netflix OSS integrations for Spring Boot apps through autoconfiguration and binding to the Spring Environment and other Spring programming model idioms. With a few simple annotations you can quickly enable and configure the common patterns inside your application and build large distributed systems with battle-tested Netflix components. The patterns provided include Service Discovery (Eureka), Circuit Breaker (Hystrix), Intelligent Routing (Zuul) and Client Side Load Balancing (Ribbon).. More infos: https://spring.io/projects/spring-cloud-netflix
Netflix Eureka Client
REST service which registers itself at the registry
Netflix Eureka Server
Is the registration service, all services will connect to the same adress: http://localhost:9000 for example
Netflix Zuul
Zuul is a JVM based router and server side load balancer by Netflix Intelligent Routing
Sleuth
Spring Cloud Sleuth implements a distributed tracing solution for Spring Cloud, borrowing heavily from Dapper, Zipkin and HTrace. For most users Sleuth should be invisible, and all your interactions with external systems should be instrumented automatically. You can capture data simply in logs, or by sending it to a remote collector service. More about: https://spring.io/projects/spring-cloud-sleuth
Spring Boot Security
Lombok
org.projectlombok:
jjwt
io.jsonwebtoken
Repositories
Milestone
Java 11 compatibility
JaXB
from com.sun.xml.bind:
jaxb-core
api
impl
Vulgarisation of the architecture
/ | Pom.xml | Properties | Files |
---|---|---|---|
Server |
spring-cloud-starter-netflix-eureka-server spring-boot : web, test & devtools com.sun.xml.bind: jaxb-core,api,impl
org.springframework.cloud: spring-cloud-dependencies
https://repo.spring.io/milestone |
spring.application.name=eureka-server server.port=8761 eureka.client.register-with-eureka=false eureka.client.fetch-registry=false |
@SpringBootApplication @EnableEurekaServer // Enable eureka server |
Zuul |
spring-cloud-starter-netflix-eureka-client spring-cloud-starter-netflix-zuul o.jsonwebtoken: jjwt com.microservices.common: SpringEurekaCommon spring-boot : web, test, devtools & security com.sun.xml.bind: jaxb-core,api,impl
org.springframework.cloud: spring-cloud-dependencies
https://repo.spring.io/milestone |
server.port=8762 spring.application.name=zuul-server eureka.client.service-url.default-zone=http://localhost:8761/eureka/ #zuul.prefix=/api
zuul.ignored-services=*
zuul.routes.gallery-service.path=/gallery/** zuul.routes.gallery-service.service-id=gallery-service zuul.routes.auth-service.path=/auth/** zuul.routes.auth-service.service-id=AUTH-SERVICE$
zuul.routes.auth-service.strip-prefix=false zuul.routes.auth-service.sensitive-headers=Cookie,Set-Cookie #Exclude authorization from sensitive headers |
@SpringBootApplication @EnableEurekaClient @EnableZuulProxy
@Component
//import com.eureka.common.security.JwtConfig; private final JwtConfig jwtConfig;
@EnableWebSecurity @Autowired //import com.eureka.common.security.JwtConfig; private JwtConfig jwtConfig; @Bean public JwtConfig jwtConfig() { return new JwtConfig(); } |
Image |
spring-cloud-starter-netflix-eureka-client spring-boot : web, test & devtools org.springframework.cloud: spring-cloud-starter-sleuth
org.springframework.cloud: spring-cloud-dependencies
https://repo.spring.io/milestone |
spring.application.name=image-service server.port=8200 eureka.client.service-url.default-zone=http://localhost:8761/eureka |
@SpringBootApplication @EnableEurekaClient
@RestController @RequestMapping("/") @Autowired private Environment env;
|
Gallery |
/ |
/ |
/ |
Common |
spring-cloud-starter-netflix-eureka-client org.projectlombok: lombok spring-boot : web, test & devtools
org.springframework.cloud: spring-cloud-dependencies
https://repo.spring.io/milestone |
spring.application.name=common-service server.port=9200 eureka.client.service-url.default-zone=http://localhost:8761/eureka |
@SpringBootApplication @EnableEurekaClient
@Getter @ToString @Value("${security.jwt.uri:/auth/**}") @Value("${security.jwt.header:Authorization}") @Value("${security.jwt.prefix:Bearer }") @Value("${security.jwt.expiration:#{24*60*60}}") @Value("${security.jwt.secret:JwtSecretKey}")
|
Auth |
spring-cloud-starter-netflix-eureka-client spring-boot : web, test, devtools & Security io.jsonwebtoken: jjwt com.microservices.common: SpringEurekaCommon com.sun.xml.bind: jaxb-core,api,impl
org.springframework.cloud: spring-cloud-dependencies
https://repo.spring.io/milestone |
spring.application.name=auth-service server.port=9100 eureka.client.service-url.default-zone=http://localhost:8761/eureka |
@SpringBootApplication @EnableEurekaClient
@EnableWebSecurity @Autowired private UserDetailsService userDetailsService; @Autowired //import com.eureka.common.security.JwtConfig; private JwtConfig jwtConfig; @Bean public JwtConfig jwtConfig() { return new JwtConfig(); } @Bean public BCryptPasswordEncoder passwordEncoder() { return new BCryptPasswordEncoder(); }
@Service @Autowired private BCryptPasswordEncoder encoder; @Override public UserDetails |