spring-cloud-kubernetes-feign实战

spring-cloud-kubernetes

关于spring-cloud-kubernetes

spring-cloud-kubernetes是springcloud官方推出的开源项目，用于将Spring Cloud和Spring Boot应用运行在kubernetes环境，并且提供了通用的接口来调用kubernetes服务，主要提供了应用程序使用k8s本身功能：服务注册发现、客户端负载均衡、从Kubernetes ConfigMap和Secrets加载应用程序属性 。 ConfigMap或Secret更改时，重新加载应用程序属性。GitHub上官方地址是：https://github.com/spring-cloud/spring-cloud-kubernetes

官网文档地址：https://cloud.spring.io/spring-cloud-kubernetes/1.1.x/reference/html/

入门程序

环境和版本：
linux系统
k8s集群
kubectl
idea
jdk8
maven

spring-boot工程
pom.xml

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.xxx.bolingcavalry</groupId>
    <artifactId>springcloudk8sdiscovery</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springcloudk8sdiscovery</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-boot.version>2.1.1.RELEASE</spring-boot.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <type>pom</type>
                <scope>import</scope>
                <version>${spring-boot.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-kubernetes-core</artifactId>
            <version>1.0.1.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-kubernetes-discovery</artifactId>
            <version>1.0.1.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-commons</artifactId>
            <version>2.1.1.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
            <version>2.1.1.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>2.1.1.RELEASE</version>
        </dependency>