在我们实际生产环境中，都需要考虑到一个安全问题，比如用户登录，又或者是eureka server，它对外暴露的有自己的rest API，如果没有安全认证，也就意味着别人可以通过rest API随意修改数据信息，这是一件非常恐怖的事情，这篇文章咱们详谈eureka server是如何开启认证，以及eureka client是如何配置鉴权信息。
公共pom文件依赖：
org.springframework.boot spring-boot-starter-parent 2.0.3.RELEASE UTF-8 UTF-8 1.8 Finchley.RELEASE org.springframework.cloud spring-cloud-dependencies ${spring-cloud.version} pom import
1、eureka server工程
1.1、eureka server工程pom：
org.springframework.cloud spring-cloud-starter-netflix-eureka-server
org.springframework.boot spring-boot-starter-security org.springframework.boot spring-boot-maven-plugin
1.2、eureka server工程启动类：
import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer; @SpringBootApplication @EnableEurekaServer public class EurkeaServerApplication { public static void main(String[] args) { SpringApplication.run(EurkeaServerApplication.class, args); } }
1.3、eureka server工程配置文件，路径：eureka-server\src\main\resources\
application-security.yml：
server: port: 8761 spring: security: basic: enabled: true user: name: admin password: Xk38CNHigBP5jK75 eureka: instance: hostname: localhost client: registerWithEureka: false fetchRegistry: false serviceUrl: defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/ server: waitTimeInMsWhenSyncEmpty: 0 enableSelfPreservation: false
application.yml：
spring:
profiles:
active: security
由于spring-boot-starter-security默认开启了CSRF校验，对于client端这类非界面应用来说，有些不合适，但是又没有配置文件的方式可以禁用，需要通过Java配置，进行禁用，如下：
import org.springframework.security.config.annotation.web.builders.HttpSecurity; import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity; import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter; /** * 关闭spring-boot-starter-security的CSRF校验 */ @EnableWebSecurity public class SecurityConfig extends WebSecurityConfigurerAdapter { @Override protected void configure(HttpSecurity http) throws Exception { super.configure(http); http.csrf().disable(); } }
1.4、启动eureka server工程，执行命令：
mvn spring-boot:run
打开命令行终端，执行： curl -i http://localhost:8761/eureka/apps
curl -i http://localhost:8761/eureka/apps HTTP/1.1 401 Set-Cookie: JSESSIONID=554BCAF092D8D1ED3936C0CB09E91AF1; Path=/; HttpOnly WWW-Authenticate: Basic realm="Realm" X-Content-Type-Options: nosniff X-XSS-Protection: 1; mode=block Cache-Control: no-cache, no-store, max-age=0, must-revalidate Pragma: no-cache Expires: 0 X-Frame-Options: DENY Content-Type: application/json;charset=UTF-8 Transfer-Encoding: chunked Date: Fri, 04 Oct 2019 07:31:57 GMT {"timestamp":"2019-10-04T07:31:57.888+0000","status":401,"error":"Unauthorized","message":"Unauthorized","path":"/eureka/apps"}
可以看出，没有传递Authenticate的header，返回401状态码。
下面使用http basic的账号密码传递Authenticate的header：
curl -i --basic -u admin:Xk38CNHigBP5jK75 http://localhost:8761/eureka/apps HTTP/1.1 200 Set-Cookie: JSESSIONID=CF1C0DE56415626494EC539A654CC543; Path=/; HttpOnly X-Content-Type-Options: nosniff X-XSS-Protection: 1; mode=block Cache-Control: no-cache, no-store, max-age=0, must-revalidate Pragma: no-cache Expires: 0 X-Frame-Options: DENY Content-Type: application/xml Transfer-Encoding: chunked Date: Fri, 04 Oct 2019 07:35:54 GMT1
请求成功。
2、eureka client工程
2.1、eureka client工程pom：
org.springframework.cloud spring-cloud-starter-netflix-eureka-client org.springframework.boot spring-boot-maven-plugin
2.2、eureka client工程启动类：
import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.client.discovery.EnableDiscoveryClient; @SpringBootApplication @EnableDiscoveryClient public class EurekaClientApplication { public static void main(String[] args) { SpringApplication.run(EurekaClientApplication.class, args); } }
2.3、eureka client工程配置文件，路径：eureka-client\src\main\resources\
由于eureka server工程开启了http basic认证，eureka client工程也需要添加相应的账号信息来传递，这里我们通过配置文件来指定。
application-security.yml：
server: port: 8081 spring: application: name: client1 eureka: client: security: basic: user: admin password: Xk38CNHigBP5jK75 serviceUrl: defaultZone: http://${eureka.client.security.basic.user}:${eureka.client.security.basic.password}@localhost:8761/eureka/
application.yml：
spring:
profiles:
active: security
执行：curl -i --basic -u admin:Xk38CNHigBP5jK75 http://localhost:8761/eureka/apps
curl -i --basic -u admin:Xk38CNHigBP5jK75 http://localhost:8761/eureka/apps HTTP/1.1 200 Set-Cookie: JSESSIONID=C7CE372067A44606E9D3DEA6B64AEDCD; Path=/; HttpOnly X-Content-Type-Options: nosniff X-XSS-Protection: 1; mode=block Cache-Control: no-cache, no-store, max-age=0, must-revalidate Pragma: no-cache Expires: 0 X-Frame-Options: DENY Content-Type: application/xml Transfer-Encoding: chunked Date: Fri, 04 Oct 2019 07:53:40 GMT1 UP_1_ CLIENT1 192.168.50.161:client1:8081 192.168.50.161 CLIENT1 192.168.50.161 UP UNKNOWN 8081 443 1 class="com.netflix.appinfo.InstanceInfo$DefaultDataCenterInfo"> MyOwn 30 90 1570175584067 1570175584067 0 1570175584067 8081 http://192.168.50.161:8081/ http://192.168.50.161:8081/actuator/info http://192.168.50.161:8081/actuator/health client1 client1 false 1570175584067 1570175583914 ADDED
可以看到eureka client已经成功注册到server。