OSCON 2015: Microservices with Spring Cloud and Netflix OSS

Slides: http://spencer.gibb.us/preso/spring-cloud-oscon-2015/

Spring Boot

start_spring_io.sh fortunes actuator,web

application.properties:

server.port=8080

1. add fortunes from https://goo.gl/0lVrBw
2. static random

Config Server

start_spring_io.sh configserver actuator,web,cloud-config-server

application.properties

server.port=8888

https://github.com/spencergibb/oscon-config-repo

add exclusion to s-c-config-server

<exclusions>
  <exclusion>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-rsa</artifactId>
  </exclusion>
</exclusions>

in bootstrap.properties

encrypt.key=foobar
spring.application.name=configserver

http :8888/foo/default
http --form :8888/encrypt password=
http --form :8888/decrypt $ENCRYPTED=

JDK requirement; if we you have exception during encryption/decryption

Make sure you have the unlimited strength file installed now in ${java.home}/jre/lib/security/.

http://www.oracle.com/technetwork/java/javase/downloads/jce8-download-2133166.html

http://www.oracle.com/technetwork/java/javase/downloads/jce-7-download-432124.html

http://www.oracle.com/technetwork/java/javase/downloads/jce-6-download-429243.html

in config-repo:application.yml set encrypted.value: '{cipher}$ENCRYPTED'

add config client to fortunes in bootstrap.properties

  spring.application.name=fortunes

show profiles and labels

Eureka

start_spring_io.sh eureka actuator,web,cloud-eureka-server

application.properties:

server.port=8761
eureka.client.register-with-eureka=false
eureka.client.fetch-registry=false

add spring-cloud-starter-eureka and @EnableDiscoveryClient to fortunes and configserver run more than 1

Ribbon

start_spring_io.sh fortunesui actuator,web,cloud-ribbon,cloud-config-client,cloud-eureka

application.properties

server.port=9000

in bootstrap.properties

  spring.application.name=fortunesui

add @EnableDiscoveryClient add /choose that show LoadBalancerClient in action

add RestOperations to /

Feign

add spring-cloud-starter-feign to fortunesui add @EnableFeignClients add @FeignClient public interface...

Hystrix

add spring-cloud-starter-hystrix to fortunesui add @SpringCloudApplication create FortuneService with @HystrixCommand with fallback

Hystrix Dashboard

`start_spring_io.sh hystrixdashboard actuator,web,cloud-hystrix-dashboard,cloud-eureka,cloud-config-client``

application.properties

server.port=7979

in bootstrap.properties

spring.application.name=hystrixdashboard

stop fortune service and refresh to open circuit

http --form POST :9000/env hystrix.command.fortune.circuitBreaker.forceOpen=true
http --form POST :9000/refresh

Zuul

start_spring_io.sh zuul actuator,web,cloud-config-client,cloud-eureka,cloud-zuul

application.properties

server.port=9080

in bootstrap.properties

spring.application.name=zuul

add @EnableDiscoveryClient @EnableZuulProxy to zuul app

application.properties

management.port=9081
zuul.routes.fortunesui=/**

Actuator

Add fortunesui.prefix property class and add to ui

http --form POST :9000/env fortunesui.prefix="Awesomeness: "

Change something in oscon-config-repo/fortunesui.yml

http POST :9000/refresh
http --form POST :9000/env fortunesui.prefix='really awesome: '

Spring Cloud Bus

add spring-cloud-starter-bus-amqp to fortunes and fortunesui

http --form POST :9000/bus/env info.url=http://spencer.gibb.us

Change something in oscon-config-repo/application.yml

http POST :9000/bus/refresh

Sidecar

start_spring_io.sh sidecar actuator,web,cloud-config-client,cloud-eureka

add spring-cloud-netflix-sidecar dependency

get https://goo.gl/XUTHgG and place in src/main/python

application.properties

server.port=5678
sidecar.port=5680
sidecar.health-uri=http://localhost:${sidecar.port}/health

Run with --spring.application.name=pyfortunes

http://localhost:8761/eureka/apps to show correct port and homepage

add /py to fortunesui

Security

start_spring_io.sh authserver actuator,web,security,cloud-config-client,cloud-eureka

application.properties

server.port=9999
security.user.password=password
server.contextPath=/uaa

in bootstrap.properties

spring.application.name=authserver

add spring-security-oauth2 to pom.xml

from https://github.com/dsyer/spring-security-angular/tree/master/oauth2-vanilla

Update AuthserverApp with code from https://goo.gl/qoFs5L

visit http://localhost:9999/uaa/oauth/authorize?response_type=code&client_id=acme&redirect_uri=http://example.com

get code from browser

http --form --auth acme:acmesecret POST :9999/uaa/oauth/token grant_type=authorization_code client_id=acme redirect_uri=http://example.com code=7bx7ci

export TOKEN= access_token from response

in fortunes add spring-security-oauth2 & spring-cloud-starter-security to pom.xml

add @EnableOAuth2Resource to FortunesApp

application.properties

spring.oauth2.resource.userInfoUri: http://localhost:9999/uaa/user

http :8080 should be 401
http :8080 Authorization:"Bearer $TOKEN"
http :9999/uaa/user Authorization:"Bearer $TOKEN"

in zuul add spring-boot-starter-security, spring-security-oauth2 & spring-cloud-starter-security to pom.xml

add https://goo.gl/29Qs56 to zuul application.yml

in fortunesui add spring-cloud-starter-security,spring-security-oauth2

add @EnableOAuth2Resource to FortunesuiApp

@Autowired
@LoadBalanced
private OAuth2RestOperations rest;

add https://goo.gl/29Qs56 to fortunesui application.yml

Turbine

TODO

Turbine AMQP

TODO