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本例主要演示如何自定义eureka页面，以及自定义eureka登陆登出
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‎pom.xml‎

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<module>springboot-mybatisplus-tenant</module>
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<module>springboot-xxl-job-executor</module>
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<module>springboot-aop-spel</module>
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<module>springboot-custom-eureka</module>
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</modules>
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<parent>
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<groupId>org.springframework.boot</groupId>

‎springboot-custom-eureka/README.MD‎

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本例主要演示如何自定义eureka页面，以及自定义eureka登陆登出
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## 自定义登陆
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实现核心点：通过spring-security进行集成登陆
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## 自定义eureka页面
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实现核心点：重写spring-cloud-netflix-eureka-server-*.jar中的templates/eureka下的页面
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**注：** 不同版本的eureka页面略有区别

‎springboot-custom-eureka/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<parent>
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<artifactId>springboot-learning</artifactId>
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<groupId>com.github.lybgeek</groupId>
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<version>0.0.1-SNAPSHOT</version>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<artifactId>springboot-custom-eureka</artifactId>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-security</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-thymeleaf</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-actuator</artifactId>
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</dependency>
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<dependency>
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<groupId>io.micrometer</groupId>
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<artifactId>micrometer-registry-prometheus</artifactId>
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</dependency>
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<dependency>
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<groupId>com.alibaba</groupId>
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<artifactId>fastjson</artifactId>
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</dependency>
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</dependencies>
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</project>

‎springboot-custom-eureka/src/main/java/com/github/lybgeek/eureka/server/EurekaServerApplication.java‎

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package com.github.lybgeek.eureka.server;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
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/**
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* @description: eureka服务端
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*
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**/
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@SpringBootApplication
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@EnableEurekaServer
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public class EurekaServerApplication {
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public static void main(String[] args) {
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SpringApplication.run(EurekaServerApplication.class,args);
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}
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}

‎springboot-custom-eureka/src/main/java/com/github/lybgeek/eureka/server/config/WebSecurityConfig.java‎

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package com.github.lybgeek.eureka.server.config;
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import io.micrometer.core.instrument.MeterRegistry;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.boot.actuate.autoconfigure.metrics.MeterRegistryCustomizer;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.security.config.annotation.web.builders.HttpSecurity;
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import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
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import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
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/**
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* @description: eureka服务端 csrf过滤eureka路径
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*
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**/
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@EnableWebSecurity
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@Configuration
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public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
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@Override
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protected void configure(HttpSecurity http) throws Exception {
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http.csrf().disable()
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.authorizeRequests()
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.antMatchers("/toLogin*","/login*","/css/*","/js/*","/actuator/**").permitAll()
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.and()
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.formLogin()
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.loginPage("/toLogin")
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.loginProcessingUrl("/login").failureUrl("/login/error").permitAll();
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super.configure(http);
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}
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@Bean
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MeterRegistryCustomizer<MeterRegistry> configure(@Value("${spring.application.name}") String applicationName){
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return registry -> registry.config().commonTags("application", applicationName);
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}
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}

‎springboot-custom-eureka/src/main/java/com/github/lybgeek/eureka/server/controller/LoginController.java‎

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package com.github.lybgeek.eureka.server.controller;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.security.authentication.*;
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import org.springframework.security.core.AuthenticationException;
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import org.springframework.security.core.userdetails.UsernameNotFoundException;
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import org.springframework.security.web.WebAttributes;
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import org.springframework.stereotype.Controller;
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import org.springframework.web.bind.annotation.GetMapping;
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import javax.servlet.http.HttpServletRequest;
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/**
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* @description: 登录
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*
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**/
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@Controller
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@Slf4j
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public class LoginController {
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@GetMapping("/login/error")
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public String loginError(HttpServletRequest request) {
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AuthenticationException authenticationException = (AuthenticationException) request.getSession().getAttribute(WebAttributes.AUTHENTICATION_EXCEPTION);
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log.info("authenticationException={}", authenticationException);
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String errorMsg;
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if (authenticationException instanceof UsernameNotFoundException || authenticationException instanceof BadCredentialsException) {
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errorMsg = "用户名或密码错误";
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} else if (authenticationException instanceof DisabledException) {
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errorMsg = "用户已被禁用";
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} else if (authenticationException instanceof LockedException) {
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errorMsg = "账户被锁定";
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} else if (authenticationException instanceof AccountExpiredException) {
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errorMsg = "账户过期";
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} else if (authenticationException instanceof CredentialsExpiredException) {
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errorMsg = "证书过期";
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} else {
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errorMsg = "登录失败";
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}
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request.setAttribute("errorMsg",errorMsg);
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return "login";
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}
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@GetMapping("/toLogin")
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public String login(HttpServletRequest request) {
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return "login";
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}
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}

‎springboot-custom-eureka/src/main/resources/application-standalone.yml‎

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eureka:
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#此处设置会改变eureka控制台的显示
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datacenter: ${DATA_CENTER:LYBGEEK DATA CENTER}
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#此处设置会改变eureka控制台的显示
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environment: ${ENV:dev}
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instance:
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# 服务实例ID
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instance-id: ${spring.cloud.client.hostname}:${spring.application.name}:${spring.application.instance_id:${server.port}}
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client:
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service-url:
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# Eureka客户端与Eureka服务端的交互地址
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defaultZone: http://lybgeek:lybgeek@localhost:8761/eureka/
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# 是否从eureka server抓取服务信息
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fetch-registry: false
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# 是否注册到eureka server
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register-with-eureka: false
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server:
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port: 8761

‎springboot-custom-eureka/src/main/resources/application.yml‎

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spring:
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profiles:
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# 配置文件激活
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active: standalone
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security:
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user:
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# 认证的用户名
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name: lybgeek
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# 认证的密码
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password: lybgeek
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application:
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# 应用名
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name: custom-eureka
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freemarker:
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prefer-file-system-access: false
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#放开权限，可以被hystrix dashboard,spring boot admin监控到
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management:
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endpoints:
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web:
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exposure:
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include: '*'
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endpoint:
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health:
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show-details: ALWAYS
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metrics:
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tags:
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application: ${spring.application.name}
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‎springboot-custom-eureka/src/main/resources/static/css/bootstrap.min.css‎

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‎springboot-custom-eureka/src/main/resources/static/css/signin.css‎

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body {
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padding-top: 40px;
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padding-bottom: 40px;
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background-color: #eee;
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}
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.form-signin {
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max-width: 330px;
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padding: 15px;
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margin: 0 auto;
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}
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.form-signin .form-signin-heading,
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.form-signin .checkbox {
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margin-bottom: 10px;
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}
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.form-signin .checkbox {
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font-weight: 400;
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}
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.form-signin .form-control {
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position: relative;
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box-sizing: border-box;
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height: auto;
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padding: 10px;
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font-size: 16px;
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}
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.form-signin .form-control:focus {
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z-index: 2;
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}
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.form-signin input[type="email"] {
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margin-bottom: -1px;
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border-bottom-right-radius: 0;
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border-bottom-left-radius: 0;
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}
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.form-signin input[type="password"] {
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margin-bottom: 10px;
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border-top-left-radius: 0;
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border-top-right-radius: 0;
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}

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