Maven 插件
dockerfile-maven-plugin：1.4.9，前生是docker-maven-plugin，是一个快速构建docker镜像的maven插件，github地址：https://github.com/spotify/dockerfile-maven
配置setting.xml
setting.xml文件一般在用户目录下的.m2文件夹下
- 在<servers><servers>中添加neuxs和docker推送的认证信息
<servers>
<server>
<id>neuxs</id>
<username>admin</username>
<password>admin123</password>
</server>
<server>
<id>192.168.30.205:5000</id>
<username>admin</username>
<password>admin123</password>
</server>
<servers>
- 在<profiles></profiles>中添加远程仓库的配置信息
<profiles>
<profile>
<id>mario-nexus</id>
<repositories>
<repository>
<id>mario nexus repository</id>
<name>mario nexus repository</name>
<url>http://192.168.30.205:8081/repository/maven-public/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
</profile>
</profiles>
- 在<activeProfiles></activeProfiles>中激活上面的配置
<activeProfiles>
<activeProfile>mario-nexus</activeProfile>
</activeProfiles>
配置dockerfile-maven-plugin
- 在父pom.xml 中添加docker镜像的仓库地址和nexus的仓库地址
<properties>
...
<docker.repository>192.168.30.206:5000</docker.repository>
</properties>
....
<distributionManagement>
<repository>
<id>nexus</id>
<url>http://192.168.30.205:8081/repository/maven-releases/</url>
</repository>
<snapshotRepository>
<id>nexus</id>
<url>http://192.168.30.205:8081/repository/maven-snapshots/</url>
</snapshotRepository>
</distributionManagement>
2.在discovery中的pom.xml配置镜像信息
<build>
<plugins>
......
<plugin>
<groupId>com.spotify</groupId>
<artifactId>dockerfile-maven-plugin</artifactId>
<executions>
<execution>
<id>default</id>
<goals>
<goal>build</goal>
<goal>push</goal>
</goals>
</execution>
</executions>
<configuration>
<repository>${docker.repository}/${project.artifactId}</repository>
<tag>${project.version}</tag>
<useMavenSettingsForAuth>true</useMavenSettingsForAuth>
<buildArgs>
<JAR_FILE>${project.build.finalName}.jar</JAR_FILE>
</buildArgs>
</configuration>
</plugin>
</plugins>
</build>
<useMavenSettingsForAuth>true</useMavenSettingsForAuth>会使用settting.xml中的认证信息，通过docker仓库的地址匹配
<buildArgs>可以设置自定义参数，给Dockerfile使用
- 编写Dockerfile文件
在discovery的pom.xml同目录下新建一个Dockerfile文件
FROM openjdk:8-jre-alpine
ARG JAR_FILE
COPY target/${JAR_FILE} discovery.jar
EXPOSE 8761
ENTRYPOINT ["java","-jar","/discovery.jar"]
4.修改discovery，provider-user，provider-order的application.yml中的defaultZone属性，因为在一个宿主机的不同容器间需要通过容器名，并且配置network才能通讯，之间是通过--link，新版本已不再推荐
//defaultZone: http://locahost:8761/eureka/
defaultZone: http://discovery:8761/eureka/
FROM 设置基础镜像，openjdk:8-jre-alpine，一个小的基础jdk镜像，会有时区问题，可以自行修改
ARG 使用pom.xml定义的参数
构建并推送
- 为了本地能识别远程docker仓库，还需要将仓库地址配置到本地的insecure-registries列表中
- linux 在
/etc/docker/新建或修改daemon.json，编辑保存
{
"insecure-registries":["http://192.168.30.205:5000"]
}
重启docker systemctl restart docker
- docker桌面版，直接在设置->Daemon中配置后重启
- image.png
- 登录仓库
docker login 192.168.30.206:5000，输入用户名和密码
Username: admin
Password:
Login Succeeded
- 在discovery目录下执行
mvn clean deploy,插件会自动执行打包，构建，推送
控制会打印执行过程，比如build
[INFO] Image will be built as 192.168.30.205:5000/discovery:0.0.1-SNAPSHOT
[INFO]
[INFO] Step 1/5 : FROM openjdk:8-jre-alpine
[INFO]
[INFO] Pulling from library/openjdk
[INFO] Digest: sha256:e8a689c4b2913f07e401e5e9325d66cecc33d30738aadf1dbe3db5af70997742
[INFO] Status: Image is up to date for openjdk:8-jre-alpine
[INFO] ---> 2e01f547f003
[INFO] Step 2/5 : ARG JAR_FILE
[INFO]
[INFO] ---> Using cache
[INFO] ---> d3f32052650f
[INFO] Step 3/5 : COPY target/${JAR_FILE} discovery.jar
[INFO]
[INFO] ---> cf105f53d1b7
[INFO] Step 4/5 : EXPOSE 8761
[INFO]
[INFO] ---> Running in ca9b00054168
[INFO] Removing intermediate container ca9b00054168
[INFO] ---> 80706e9991d6
[INFO] Step 5/5 : ENTRYPOINT ["java","-jar","/discovery.jar"]
[INFO]
[INFO] ---> Running in 099810346b7c
[INFO] Removing intermediate container 099810346b7c
[INFO] ---> 2010ed4e1fcb
[INFO] Successfully built 2010ed4e1fcb
[INFO] Successfully tagged 192.168.30.205:5000/discovery:0.0.1-SNAPSHOT
push
[INFO] --- dockerfile-maven-plugin:1.4.9:push (default) @ discovery ---
[INFO] The push refers to repository [192.168.30.205:5000/discovery]
[INFO] Image 1d56fe2feaed: Preparing
[INFO] Image 9bca1faaa73e: Preparing
[INFO] Image 0c3170905795: Preparing
[INFO] Image df64d3292fd6: Preparing
[INFO] Image df64d3292fd6: Layer already exists
[INFO] Image 9bca1faaa73e: Layer already exists
[INFO] Image 0c3170905795: Layer already exists
[INFO] Image 1d56fe2feaed: Pushing
[INFO] Image 1d56fe2feaed: Pushed
[INFO] 0.0.1-SNAPSHOT: digest: sha256:0a311489626a96f2ee922cbba3e62bd6161922442c49d5e627399d032bbc314d size: 1159
访问 http://192.168.30.205:8081/,选择docker-hosted,可以看到镜像已经上传成功
- image.png
其他两个服务provider-user，provider-order 也是类似的操作，最终可以看到三个服务都已上传成功
- image.png
