查看service和pod，确认一切正常：
[root@minikube webdemo]# kubectl get service NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 29d webdemo NodePort 10.106.98.137 <none> 8080:30160/TCP 115m [root@minikube webdemo]# kubectl get pod NAME READY STATUS RESTARTS AGE webdemo-c9f774b9-gsbgx 1/1 Running 0 3m13s使用minikube命令取得webdemo服务对外暴露的地址：
[root@minikube webdemo]# minikube service webdemo --url :30160可见外部通过地址：:30160 即可访问到webdemo应用；
在浏览器输入地址：:30160/hello/time ，即可验证webdemo的http接口是否正常，如下图，由于header中没有extendtag属性，因此返回的extendtag为null：
至此，webdemo在minikue上已经正常运行，该开发gateway应用了； 开发k8sgatewaydemo
基于maven创建一个名为k8sgatewaydemo的springboot应用，pom.xml内容如下：
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 "> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.6.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.bolingcavalry</groupId> <artifactId>k8sgatewaydemo</artifactId> <version>0.0.1-SNAPSHOT</version> <name>k8sgatewaydemo</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> <spring-boot.version>2.1.6.RELEASE</spring-boot.version> <maven-checkstyle-plugin.failsOnError>false</maven-checkstyle-plugin.failsOnError> <maven-checkstyle-plugin.failsOnViolation>false</maven-checkstyle-plugin.failsOnViolation> <maven-checkstyle-plugin.includeTestSourceDirectory>false</maven-checkstyle-plugin.includeTestSourceDirectory> <maven-compiler-plugin.version>3.5</maven-compiler-plugin.version> <maven-deploy-plugin.version>2.8.2</maven-deploy-plugin.version> <maven-failsafe-plugin.version>2.18.1</maven-failsafe-plugin.version> <maven-surefire-plugin.version>2.21.0</maven-surefire-plugin.version> <fabric8.maven.plugin.version>3.5.37</fabric8.maven.plugin.version> <springcloud.kubernetes.version>1.0.1.RELEASE</springcloud.kubernetes.version> <spring-cloud.version>Greenwich.SR2</spring-cloud.version> </properties> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-gateway</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-kubernetes-core</artifactId> <version>${springcloud.kubernetes.version}</version> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-kubernetes-discovery</artifactId> <version>${springcloud.kubernetes.version}</version> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-kubernetes-ribbon</artifactId> <version>${springcloud.kubernetes.version}</version> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-commons</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-ribbon</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-hystrix</artifactId> </dependency> </dependencies> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>${spring-cloud.version}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <version>${spring-boot.version}</version> <executions> <execution> <goals> <goal>repackage</goal> </goals> </execution> </executions> </plugin> <plugin> <!--skip deploy --> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-deploy-plugin</artifactId> <version>${maven-deploy-plugin.version}</version> <configuration> <skip>true</skip> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-surefire-plugin</artifactId> <version>${maven-surefire-plugin.version}</version> <configuration> <skipTests>true</skipTests> <!-- Workaround for https://issues.apache.org/jira/browse/SUREFIRE-1588 --> <useSystemClassLoader>false</useSystemClassLoader> </configuration> </plugin> <plugin> <groupId>io.fabric8</groupId> <artifactId>fabric8-maven-plugin</artifactId> <version>${fabric8.maven.plugin.version}</version> <executions> <execution> <id>fmp</id> <goals> <goal>resource</goal> </goals> </execution> </executions> </plugin> </plugins> </build> <profiles> <profile> <id>kubernetes</id> <build> <plugins> <plugin> <groupId>io.fabric8</groupId> <artifactId>fabric8-maven-plugin</artifactId> <version>${fabric8.maven.plugin.version}</version> <executions> <execution> <id>fmp</id> <goals> <goal>resource</goal> <goal>build</goal> </goals> </execution> </executions> <configuration> <enricher> <config> <fmp-service> <type>NodePort</type> </fmp-service> </config> </enricher> </configuration> </plugin> </plugins> </build> </profile> </profiles> </project>