kubernetes 部署 Eureka 集群,解决unavailable-replicas,available-replicas条件

<?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> ???<groupId>org.lzw.ms</groupId> ???<artifactId>eureka</artifactId> ???<version>0.0.1-SNAPSHOT</version> ???<packaging>jar</packaging> ???<name>eureka</name> ???<description>eureka for Spring Boot</description> ???<parent> ???????<groupId>org.springframework.boot</groupId> ???????<artifactId>spring-boot-starter-parent</artifactId> ???????<version>2.0.1.RELEASE</version> ???????<relativePath/> <!-- lookup parent from repository --> ???</parent> ???<properties> ???????<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> ???????<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> ???????<java.version>1.8</java.version> ???????<spring-cloud.version>Finchley.M9</spring-cloud.version> ???????<skipTests>true</skipTests> ???</properties> ???<dependencies> ???????<dependency> ???????????<groupId>org.springframework.boot</groupId> ???????????<artifactId>spring-boot-starter</artifactId> ???????</dependency> ???????<dependency> ???????????<groupId>org.springframework.cloud</groupId> ???????????<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId> ???????</dependency> ???????<dependency> ???????????<groupId>org.springframework.boot</groupId> ???????????<artifactId>spring-boot-starter-web</artifactId> ???????????<exclusions> ???????????????<exclusion> ???????????????????<groupId>org.springframework.boot</groupId> ???????????????????<artifactId>spring-boot-starter-tomcat</artifactId> ???????????????</exclusion> ???????????</exclusions> ???????</dependency> ???????<dependency> ???????????<groupId>org.springframework.boot</groupId> ???????????<artifactId>spring-boot-starter-jetty</artifactId> ???????</dependency> ???????<dependency> ???????????<groupId>org.springframework.boot</groupId> ???????????<artifactId>spring-boot-starter-test</artifactId> ???????????<scope>test</scope> ???????</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> ???????????</plugin> ???????</plugins> ???</build> ???<repositories> ???????<repository> ???????????<id>spring-milestones</id> ???????????<name>Spring Milestones</name> ???????????<url>https://repo.spring.io/milestone</url> ???????????<snapshots> ???????????????<enabled>false</enabled> ???????????</snapshots> ???????</repository> ???</repositories></project>

/** * User: laizhenwei * Date: 2018-04-12 Time: 16:09 */@RestController@RequestMapping(path = "/")public class Healthz { ???@GetMapping(path = "/healthz",produces = MediaType.TEXT_PLAIN_VALUE) ???public String healthz(){ ???????return "ok"; ???}}

@SpringBootApplication@EnableEurekaServerpublic class EurekaApplication { ???public static void main(String[] args) { ???????SpringApplication.run(EurekaApplication.class, args); ???}}

spring: ?application: ???name: EUREKA

eureka: ?instance: ????appname: ${spring.application.name}# ????prefer-ip-address: true ????lease-expiration-duration-in-seconds: 90 ?server: ???enable-self-preservation: true ???#5秒清理一次 ???eviction-interval-timer-in-ms: 5000 ?client: ???register-with-eureka: true# ???fetch-registry: true ???service-url: ?????defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/,http://${eureka-rs1.hostname}:${eureka-rs1.port}/eureka/,http://${eureka-rs2.hostname}:${eureka-rs2.port}/eureka/logging: ?config: classpath:logback-test.xml

docker build -t ms-eureka .

docker tag ms-eureka 192.168.91.137:5000/ms-eurekadocker push 192.168.91.137:5000/ms-eureka

apiVersion: extensions/v1beta1kind: Deploymentmetadata: ?name: eureka-0 ?namespace: msspec: ?replicas: 1 ?selector: ???matchLabels: ?????app: eureka-0 ?template: ???metadata: ?????labels: ???????app: eureka-0 ???spec: ?????nodeName: k8s-node-0 ?????terminationGracePeriodSeconds: 60 ?????hostNetwork: true ?????containers: ?????- name: eureka ???????image: 192.168.91.137:5000/ms-eureka ???????command: ["java"] ???????args: ["-jar", "/usr/local/eureka.jar","--spring.profiles.active=test","--server.port=8000","--spring.application.name=eureka","--eureka.instance.appname=eureka","--eureka.instance.hostname=k8s-node-0","--eureka-rs1.hostname=k8s-node-1","--eureka-rs1.port=8001","--eureka-rs2.hostname=k8s-node-2","--eureka-rs2.port=8002"] ???????ports: ???????- name: http ?????????containerPort: 8000 ?????????hostPort: 8000 ???????livenessProbe: ?????????failureThreshold: 3 ?????????httpGet: ???????????path: /healthz ???????????port: 8000 ???????????scheme: HTTP ?????????initialDelaySeconds: 20 ?????????periodSeconds: 10 ?????????successThreshold: 1 ?????????timeoutSeconds: 1 ???????readinessProbe: ?????????failureThreshold: 3 ?????????httpGet: ???????????path: /healthz ???????????port: 8000 ???????????scheme: HTTP ?????????initialDelaySeconds: 20 ?????????periodSeconds: 10 ?????????successThreshold: 1 ?????????timeoutSeconds: 1---apiVersion: v1kind: Servicemetadata: ?name: eureka-0 ?namespace: ms ?labels: ???app: eureka-0spec: ?ports: ?- port: 8000 ???name: eureka-0 ???targetPort: 8000 ?selector: ???app: eureka-0

 kubectl create -f eureka-0.yaml kubectl create -f eureka-1.yaml kubectl create -f eureka-2.yaml