building microservices with spring cloud and netflix oss
TRANSCRIPT
BUILDING
MICROSERVICESWITH
SPRING CLOUDAND
NETFLIX OSS
AGENDA- Config Server
- Config Client
- Bus
- Eureka Server
- Eureka Client
- Zuul
- Feign
- Hystrix
- Hystrix Dashboard
Client
CC
EC
ZUUL
GATEWAY API
CONFIG
SERVER
EC
FEIGN
EC
INVOICE
SERVICE
CC
SERVICE
DISCOVE
RYES
HYSTRIX
DASHBOARD
FEIGN
EC
CC
MERCHANT
SERVICE
Service Discovery
- Maintains registry of clients with metadata
- Heartbeats (default 30 seconds)
- Dashboard
- Host/Port
- Health indicator url
Service DiscoveryApplication.java
@SpringBootApplication
@EnableEurekaServer
public class ServiceDiscoveryApplication {
public static void main(String[] args) {
SpringApplication.run(ServiceDiscoveryApplication.class, args);
}
}
Service Discoverybootstrap.yml
spring:
application:
name: service-discovery
server.port: ${PORT:8761}
eureka:
instance.hostname: localhost
client:
registerWithEureka: false
fetchRegistry: false
serviceUrl.defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
DEMO
Config Server
Config ServerResource Format
- /{application}/{profile}/{label}
- /{application}-{profiles}.yml
- /{label}/{application}-{profiles}.yml
- /{application}-{profiles}.properties
- /{label}/{application}-{profiles}.properties
Config ServerApplication.java
@SpringBootApplication
@EnableConfigServer
@EnableEurekaClient
public class ConfigServerApplication {
public static void main(String[] args) {
SpringApplication.run(ConfigServerApplication.class, args);
}
}
spring:
application.name: config-server
cloud.config:
server.git.uri: https://github.com/semihhakkioglu/spring-cloud-microservice-config
label: develop
security.basic.enabled: false
management.security.enabled: false
server.port: ${PORT:8888}
eureka:
instance.hostname: localhost
client.serviceUrl.defaultZone: http://localhost:8761/eureka/
Config Serverbootstrap.yml
DEMO
Gateway APIZuul
- Filtering
- Load Balancing
- Provides single point of entry to service
- By default creates route for all registered service in Eureka
Server
- http://localhost:8080/merchant-service routes to merchant-
service
Gateway APIApplication.java
@SpringBootApplication
@EnableZuulProxy
@EnableEurekaClient
public class GatewayApiApplication {
public static void main(String[] args) {
SpringApplication.run(GatewayApiApplication.class, args);
}
}
Gateway APIbootstrap.yml
spring:
application:
name: gateway-api
cloud.config:
discovery.service-id: config-server
label: develop
server.port: ${PORT:8080}
eureka.client.serviceUrl.defaultZone: http://localhost:8761/eureka/
Gateway APIgateway-api.yml
ribbon:
ReadTimeout: 20000
ConnectTimeout: 20000
zuul:
routes:
ignoredService: '*'
invoice-service:
path: /invoices/**
serviceId: invoice-service
stripPrefix: false
merchant-service:
path: /merchants/**
serviceId: merchant-service
stripPrefix: true
DEMO
ServicesApplication.java
@SpringBootApplication
@EnableEurekaClient
@EnableFeignClients
@EnableCircuitBreaker
public class InvoiceServiceApplication {
public static void main(String[] args) {
SpringApplication.run(InvoiceServiceApplication.class, args);
}
}
Servicesbootstrap.yml
spring:
application:
name: invoice-service
cloud.config:
discovery.service-id: config-server
label: develop
server.port: ${PORT:9090}
eureka.client.serviceUrl.defaultZone: http://localhost:8761/eureka/
DEMO
Hystrix DashboardApplication.java
@SpringBootApplication
@EnableHystrixDashboard
@EnableEurekaClient
public class HystrixDashboardApplication {
public static void main(String[] args) {
SpringApplication.run(HystrixDashboardApplication.class, args);
}
}
Hystrix Dashboardbootstrap.yml
spring.application.name: hystrix-dashboard
server.port: ${PORT:8010}
eureka:
instance:
hostname: localhost
client:
registerWithEureka: true
fetchRegistry: true
serviceUrl:
defaultZone: http://localhost:8761/eureka/
DEMO
Semih HAKKIOĞLU
https://github.com/semihhakkioglu/spring-cloud-microservice-example
https://github.com/semihhakkioglu/spring-cloud-microservice-config
THANK YOU