springCloud Finchley 微服务架构从入门到精通【十】Docker Maven插件部署项目

一、Centos7 上安装docker

docker服务器的安装部署

1、Docker 要求 CentOS 系统的内核版本高于 3.10 ，验证CentOS 版本是否支持 Docker 。

root@bogon ~]# uname -r

2、更新yum包到最新

root@bogon ~]# sudo yum update

3、卸载旧版本

[root@bogon ~]# sudo yum remove docker  docker-common docker-selinux docker-engine

4、设置yum源

[root@bogon ~]# sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

5、安装docker

[root@bogon ~]# sudo yum install docker-ce

6、启动并加入开机启动

[root@bogon ~]# sudo systemctl start docker
[root@bogon ~]# sudo systemctl enable docker

7、验证是否安装成功

[root@bogon ~]# docker version

二、centos7安装 jdk 1.8 和 maven 3.5

由于安装过于简单，自行百度

二、修改springcloud项目配置

1、pom.xml 中添加 docker-maven-plugin 插件，完整pom.xml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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.mayi.springcloud</groupId>
    <artifactId>commonservice-config</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>commonservice-config</name>
    <description>配置中心</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.0.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.M8</spring-cloud.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-config-server</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-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-bus-amqp</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>
            <plugin>
                <groupId>com.spotify</groupId>
                <artifactId>docker-maven-plugin</artifactId>
                <version>1.1.0</version>
                <configuration>
                    <!-- 注意imageName要符合正则[a-z0-9-_.]的，否则构建不会成功 -->
                    <imageName>commonservice-eureka</imageName>
                    <baseImage>java</baseImage>
                    <entryPoint>["java", "-jar", "/${project.build.finalName}.jar"]</entryPoint>
                    <resources>
                        <resource>
                            <targetPath>/</targetPath>
                            <directory>${project.build.directory}</directory>
                            <include>${project.build.finalName}.jar</include>
                        </resource>
                    </resources>
                </configuration>
            </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>

2、构建镜像文件

进入项目目录，运行 mvn clean package docker:build -DskipTests

注： -DskipTests 为跳过测试，springboot测试类会再启动一个主类，有时会报单例错误

[root@localhost Downloads]# cd commonservice-eureka
[root@localhost commonservice-eureka]# mvn clean package docker:build -DskipTests

//以下为输出日志：
Digest: sha256:c1ff613e8ba25833d2e1940da0940c3824f03f802c449f3d1815a66b7f8c0e9d
Status: Downloaded newer image for java:latest
 ---> d23bdf5b1b1b
Step 2/3 : ADD /commonservice-eureka-0.0.1-SNAPSHOT.jar //

 ---> b796a24d8225
Step 3/3 : ENTRYPOINT ["java", "-jar", "/commonservice-eureka-0.0.1-SNAPSHOT.jar"]

 ---> Running in b488f35f00dd
Removing intermediate container b488f35f00dd
 ---> e3279c0c77c7
ProgressMessage{id=null, status=null, stream=null, error=null, progress=null, progressDetail=null}
Successfully built e3279c0c77c7
Successfully tagged commonservice-eureka:latest
[INFO] Built commonservice-eureka
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 15:49 min
[INFO] Finished at: 2018-05-25T02:34:34-07:00
[INFO] -----------------------------------------------------------------------

使用docker images查看镜像

[root@localhost commonservice-eureka]# docker images
REPOSITORY             TAG                 IMAGE ID            CREATED             SIZE
commonservice-eureka   latest              e3279c0c77c7        2 minutes ago       693MB
java                   latest              d23bdf5b1b1b        16 months ago       643MB
[root@localhost commonservice-eureka]# 

启动镜像

[root@localhost commonservice-eureka]# docker run -p 8761:8761 commonservice-eureka

访问虚拟机地址+8761

部署成功。

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