Springcloud and Docker-eureka of micro-services (I.)

Objective

This document records how to build a service registry Eureka, then package it into a Docker image and deploy the Eureka cluster with Docker swarm

1. Environment

Environment	Version and Description	Reference Address
Docker	V1.13.1,docker is an open Source engine that automates the deployment of developed applications to containers	Http://www.cnblogs.com/520playbo y/p/7910357.html
doker-compose	V1.11,docker One of the official orchestration (Orchestration) projects, responsible for the rapid deployment of distributed in the cluster should
docker swarm	v1.13.1,docker Engine 1.12 or later built-in swarm (no additional installation)	http://www.cnblogs.com/520playboy/p/7873903.html
Docker Registry	Registry:latest for storage Private warehouse for Docker images	http://www.cnblogs.com/520playboy/p/7889647.html
Spring boot	1 .5.1.RELEASE, is out of the box, provides a series of large projects common non-functional characteristics of the rapid development tool	Spring Boot official website
Spring Cloud	Cam Den sr5,spring Cloud provides developers with a development toolset for operations in distributed systems such as configuration management, service discovery, circuit breakers, intelligent routing, micro-proxies, control buses, one-time tokens, global locks, decision campaigns, distributed sessions, and cluster status	Spring Cloud official website
Development tools	Jdk1.8/intellij idea2016/maven3.3

2. Create a parent Empty project Microservice-spring-cloud

3. pom.xml file for parent project

<?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"> <parent> <groupId>org.springframework.boot</groupId> <artifactid>spring-boot -starter-parent</artifactid> <version>1.4.2. Release</version> </parent> <modelVersion>4.0.0</modelVersion> <groupId>com.jacky</groupId> <artifactid>microservice-spring-cloud</ Artifactid> <packaging>pom</packaging> <version>1.0-snapshot</version> <modules> <module>microservice-discovery-eureka-ha</module> </ Modules> <properties> <project.build.sourceencoding>utf-8</project.build.sourceEncoding> <project.reporting.outputencoding>utf-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <docker.image.prefix>jacky</docker.image.prefix><!--Configuring the properties of a mirrored warehouse-&lt ;d ocker.repostory>192.168.6.132: the</docker.repostory><!--Configure the corresponding address and port of the mirrored warehouse--</properties> <dependencyManagement> <de                Pendencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>camden.sr3</vers ion> <type>pom</type> <scope>import</scope> </depen            dency> </dependencies> </dependencyManagement> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> &LT;ARTIFACTID&GT;SP Ring-boot-maven-plugin</artifactid> </plugin> </plugins> <!--add build with Maven plugin                    Plug-ins for Cker mirroring-<pluginManagement> <plugins> <plugin> <groupid>com.sPotify</groupid> <artifactId>docker-maven-plugin</artifactId> < Version>0.4. -</version> </plugin> </plugins> </pluginManagement> </build ></project>

4. Create sub-project Microservice-discovery-eureka-ha

5. pom.xml file of Microservice-discovery-eureka-ha project

<?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"> <parent> <artifactId>microservice-spring-cloud</artifactId> <groupid>com.jac Ky</groupid> <version>1.0-snapshot</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>microservice-discovery-eureka-ha</artifactId> <packaging>jar </packaging> <properties> <project.build.sourceencoding>utf-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> &LT;ARTIFACTID&GT;SPRING-CLOUD-STARTER-EUREKA-SERVER&L t;/artifactid> </dependency> <dependency> &LT;GROUPID&GT;ORG.SPRINGFRAMEWORK.BOOT&L    T;/groupid> <artifactId>spring-boot-starter-security</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <groupid>com. Spotify</groupid> <artifactId>docker-maven-plugin</artifactId> <executi                        Ons> <!--setting up mirroring when executing maven install-<execution> <id>build-image</id> <phase>install</phase> <g                Oals>            <goal>build</goal> </goals> </execution> </executions> <configuration> <!--hosts with Docker installed, and API Remot is turned on E-Interface Settings--<dockerhost>http://192.168.6.130:5678</dockerhost><pushImage>true</pushImage><!--Setting up an upload image to a private warehouse requires Docker settings specify the private warehouse address--<!--mirror name--< Imagename>${docker.repostory}/${docker.image.prefix}/${project.artifactid}:${project.version}</imagename > <!--the base version of the image--<baseimage>java:openjdk-8-jdk-alpine</baseimage> <!--mirroring start parameters--<entrypoint>["Java","-jar","/${project.build.finalname}.jar"]</entrypoint> <resources> <resource> <targetPath>/</targetPath> <directory>${project.build.directory}</direc Tory> <include>${project.build.finalName}.jar</include> &        lt;/resource> </resources> </configuration> </plugin> </plugins> </build></project>

5. application.yml file of Microservice-discovery-eureka-ha project

Spring:application:name:EUREKA-HAsecurity:basic:enabled:trueUser:name:jacky password:admin---Server:port:8761Spring:profiles:peer1eureka:instance:hostname:peer1 #Eureka实例的主机名 prefer-ip-address:trueinstance-ID: ${spring.application.name}:${spring.cloud.client.ipaddress}:${spring.application.instance_id:${ Server.port}} client:serviceUrl:defaultZone:http://Jacky:[email protected]:8762/eureka/,Http://jacky: [Email protected]:8763/eureka/#Eureka节点相互注册Register-with-eureka:true---Server:port:8762Spring:profiles:peer2eureka:instance:hostname:peer2 #Eureka实例的主机名 prefer-ip-address:trueinstance-ID: ${spring.application.name}:${spring.cloud.client.ipaddress}:${spring.application.instance_id:${ Server.port}} client:serviceUrl:defaultZone:http://Jacky:[email protected]:8761/eureka/,Http://jacky: [Email protected]:8763/eureka/Register-with-eureka:true---Server:port:8763Spring:profiles:peer3eureka:instance:hostname:peer3 #Eureka实例的主机名 prefer-ip-address:trueinstance-ID: ${spring.application.name}:${spring.cloud.client.ipaddress}:${spring.application.instance_id:${ Server.port}} client:serviceUrl:defaultZone:http://Jacky:[email protected]:8761/eureka/,Http://jacky: [Email protected]:8762/eureka/Register-with-eureka:true

6. Create a Eurekahaapplication.java file

Package Com.jacky.cloud;import Org.springframework.boot.springapplication;import Org.springframework.boot.autoconfigure.springbootapplication;import Org.springframework.cloud.netflix.eureka.server.EnableEurekaServer, @SpringBootApplication @enableeurekaserver  Publicclass  eurekahaapplication {  publicstaticvoid  Main (string[] args) {    springapplication.run (eurekahaapplication. class , args);}  }

7. Create the Docker-compose.yml file in the parent directory

Version"3"services:peer1: # By default, other services can connect to the service using the service name. Therefore, for EUREKASERVICE1 nodes, it requires a connection to http://eurekaservice2/3:951x/eureka/, so the name of the service that needs to be configured is EurekaService1. Image192.168.6.132: the/jacky/microservice-discovery-eureka-ha:1.0-SNAPSHOT Deploy:replicas:1number of replicas of services that #定义 replicated mode update_config:parallelism:1#每次更新复本数量 delay:2s #每次更新间隔 restart_policy:condition:on-failure #定义服务的重启条件 Networks:-eureka-NET ports:-"8761:8761"Environment:-Spring.profiles.active=peer1 Peer2: # Highly available Eureka Register Node 2 Image:192.168.6.132: the/jacky/microservice-discovery-eureka-ha:1.0-SNAPSHOT Deploy:replicas:1number of replicas of services that #定义 replicated mode update_config:parallelism:1#每次更新复本数量 delay:2s #每次更新间隔 restart_policy:condition:on-failure #定义服务的重启条件 Networks:-eureka-NET ports:-"8762:8762"Environment:-Spring.profiles.active=peer2 Peer3: # Highly available Eureka Register node 3 Image:192.168.6.132: the/jacky/microservice-discovery-eureka-ha:1.0-SNAPSHOT Deploy:replicas:1number of replicas of services that #定义 replicated mode update_config:parallelism:1#每次更新复本数量 delay:2s #每次更新间隔 restart_policy:condition:on-failure #定义服务的重启条件 Networks:-eureka-NET ports:-"8763:8763"Environment:-Spring.profiles.active=Peer3networks:eureka-Net: #网络名称 driver:overlay

8. Packing

Double-click Install

9. View the image on the 192.168.6.130 machine

Indicates successful upload

10. Upload the Docker-compose.yml file to the owning swarm environment, execute the command as follows

[email protected] docker-compose]# Docker stack deploy-c docker-compose.yml eurekacreating Service eureka_peer2creating Service eureka_peer3creating service Eureka_peer1[[email Protected] Docker-compose]# Docker Stack PS eurekaid NAME IMAGE NODE desired state Current state ERROR portsnjhk2gkh7b6r Eureka_peer1.1  192.168.6.132: the/jacky/microservice-discovery-eureka-ha:1.0-snapshot node3.jacky.com Running Running -seconds ago y5xwabq42zx4 Eureka_peer3.1  192.168.6.132: the/jacky/microservice-discovery-eureka-ha:1.0-snapshot node3.jacky.com Running Running -seconds ago 468xoiu6lv6l eureka_peer2.1  192.168.6.132: the/jacky/microservice-discovery-eureka-ha:1.0-snapshot node2.jacky.com Running Running $Seconds ago

Description Eureka Cluster Deployment succeeded

Description: The Swarm cluster 192.168.6.130;192.168.6.131;192.168.6.132;8761,8762,8763 port can be accessed

Springcloud and Docker-eureka of micro-services (I.)