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maven docker 相关操作_mvn dockerfile:build

mvn dockerfile:build

简介

通过maven插件,结合maven命令,实现打包、生成镜像、推送到仓库中心功能。

1、开启Docker daemon服务远程访问

修改配置

  •  修改 /etc/docker/daemon.json 文件,没有就创建,文件内容如下:
  1. {
  2. "hosts": [
  3. "tcp://0.0.0.0:2376",
  4. "unix:///var/run/docker.sock"
  5. ],
  6. "insecure-registries" : ["172.16.1.146"]
  7. }

重启docker

  1. sudo systemctl daemon-reload
  2. sudo systemctl restart docker

验证

  1. [root@localhost ~]# docker -H 172.16.1.191:2376 images
  2. REPOSITORY TAG IMAGE ID CREATED SIZE
  3. 172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713171831 063b60635335 25 minutes ago 727 MB
  4. 172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713171646 3b8deedff90d 27 minutes ago 727 MB
  5. 172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713091144 aa898d0cbd28 32 minutes ago 727 MB
  6. 172.16.1.146:8888/wondertek/docker-test 1.0.0-2018071308 a91e9e3b0678 About an hour ago 727 MB
  7. 172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713083134 a91e9e3b0678 About an hour ago 727 MB
  8. 172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713080550 db286edbbc18 About an hour ago 727 MB

2、MAVEN配置

此处根据dockerfile生成镜像,
pom.xml中添加插件。

插件git地址:GitHub - spotify/dockerfile-maven: MATURE: A set of Maven tools for dealing with Dockerfiles

  1. <!-- 生成时间戳 -->
  2. <plugin>
  3. <groupId>org.codehaus.mojo</groupId>
  4. <artifactId>build-helper-maven-plugin</artifactId>
  5. <version>1.9.1</version>
  6. <executions>
  7. <execution>
  8. <id>timestamp-property</id>
  9. <goals>
  10. <goal>timestamp-property</goal>
  11. </goals>
  12. </execution>
  13. </executions>
  14. <configuration>
  15. <name>current.time</name>
  16. <pattern>yyyyMMddHHmmss</pattern>
  17. <timeZone>GMT+8</timeZone>
  18. </configuration>
  19. </plugin>
  20. <!-- 打包生成镜像、push镜像到私有镜像中心 -->
  21. <plugin>
  22. <groupId>com.spotify</groupId>
  23. <artifactId>dockerfile-maven-plugin</artifactId>
  24. <version>1.4.0</version>
  25. <executions>
  26. <execution>
  27. <id>default</id><!-- 要绑定到的生命周期的阶段 -->
  28. <phase>install</phase><!-- 要绑定到的生命周期的阶段 -->
  29. <goals> <!-- 要绑定的插件的目标 -->
  30. <goal>build</goal>
  31. <goal>push</goal>
  32. </goals>
  33. </execution>
  34. </executions>
  35. <configuration>
  36. <!-- 私有镜像中心的用户名 -->
  37. <username>registry</username>
  38. <!-- 私有镜像中心的密码 -->
  39. <password>******</password>
  40. <!-- 172.16.1.146:私有镜像中心地址; wondertek/${project.artifactId}:镜像名称-->
  41. <repository>172.16.1.146/wondertek/${project.artifactId}</repository>
  42. <!-- 镜像版本号 -->
  43. <tag>${project.version}-${current.time}</tag>
  44. <buildArgs>
  45. <!-- 参数,提供给dockerfile使用 -->
  46. <JAR_FILE>target/docker-test-1.0.0.jar</JAR_FILE>
  47. </buildArgs>
  48. </configuration>
  49. </plugin>

3、dockerfile配置

官网说明:Best practices for writing Dockerfiles | Docker Documentation

  1. # 拉取基础镜像
  2. FROM hub.c.163.com/library/java:8-jdk
  3. # 镜像的作者
  4. MAINTAINER csp@xxx.com
  5. #挂载目录,通过 VOLUME 指令创建的挂载点,无法指定主机上对应的目录,是自动生成的
  6. VOLUME ["/data1","/data2"]
  7. RUN ["mkdir", "-p", "/app"]
  8. #结合maven插件dockerfile-maven-plugin的打包使用
  9. ARG JAR_FILE
  10. ADD ${JAR_FILE} /app/app.jar
  11. #为后面的 RUN, CMD, ENTRYPOINT, ADD 或 COPY 指令设置镜像中的当前工作目录。
  12. #WORKDIR /usr/local/docker/test
  13. #拷贝当前目录文件到容器/app
  14. #COPY . /app
  15. #与 COPY 类似,从 build context 复制文件到镜像。不同的是,如果 src 是归档文件(tar, zip, tgz, xz 等),文件会被自动解压到 dest。
  16. #ADD src dest
  17. #设置环境变量,环境变量可被后面的指令使用
  18. ENV EVN_SET_TEST "WELCOME TO DOCKERFILE CONTAINER!"
  19. ##################
  20. # RUN、CDM、ENTRYPOINT 命令都包含两种格式:Shell 格式和 Exec 格式
  21. # CMD还可以放在ENTRYPOINT后,为其传递参数。
  22. ##### shell 格式:######
  23. ## 底层会调用 /bin/sh -c <command>
  24. # 在容器中运行指定的命令
  25. RUN echo $EVN_SET_TEST
  26. # 容器启动命令 只有最后一个生效,CMD 可以被 docker run 之后的参数替换。
  27. #只有最后一个生效
  28. CMD echo "CMD Hello world"
  29. #配置容器启动时运行的命令
  30. ENTRYPOINT echo "ENTRYPOINT Hello, $EVN_SET_TEST"
  31. ###### Exec 格式: #####
  32. ## 当指令执行时,会直接调用 <command>,不会被 shell 解析
  33. # ENTRYPOINT ["/bin/echo", "Hello, $EVN_SET_TEST"]
  34. # 正确写法应该为:
  35. # ENTRYPOINT ["/bin/sh", "-c", "echo Hello, $EVN_SET_TEST"]
  36. # 为Exec 格式的ENTRYPOINT传递参数,结果输出Hello, $EVN_SET_TEST dockerfile world
  37. # CMD ["dockerfile world"]
  38. #只有最后一个生效
  39. ENTRYPOINT ["java","-jar","/app/app.jar"]
  40. #表示哪个端口提供服务的提示,宿主机如果要访问,需要结合-P参数联合使用。
  41. EXPOSE 8080

4、build publish镜像

配置远程docker环境变量

export DOCKER_HOST=tcp://172.16.1.191:2376

windows直接在环境变量中添加。

mvn命令执行

  1. build镜像:
  2. mvn clean package dockerfile:build -DskipTests

注意:
Image will be built as xxxxx这一步会比较慢,需要将文件上传到服务器上(等待时间取决于文件大小和上传速度)

  1. 发布到镜像中心,注意,该命令不会build镜像。
  2. mvn dockerfile:push
  1. 配置中 build 和 publish 都绑定在install周期上。
  2. 如果不想触发相关流程,可以添加相关例外参数。
  3. mvn clean install -Ddockerfile.skip
命令说明
dockerfile.skipDisables the entire dockerfile plugin; all goals become no-ops.
dockerfile.build.skipDisables the build goal; it becomes a no-op.
dockerfile.tag.skipDisables the tag goal; it becomes a no-op.
dockerfile.push.skipDisables the push goal; it becomes a no-op.
也可以取消pom.xml中executions的配置,通过 mvn clean install dockerfile:build dockerfile:push -DskipTests 构建并且推送到注册中心

远程镜像查看:

  1. [root@localhost log]# docker -H 172.16.1.191:2376 images
  2. REPOSITORY TAG IMAGE ID CREATED SIZE
  3. 172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713171831 063b60635335 2 days ago 727 MB
  4. 172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713171646 3b8deedff90d 2 days ago 727 MB
  5. 172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713091144 aa898d0cbd28 2 days ago 727 MB
  6. 172.16.1.146:8888/wondertek/docker-test 1.0.0-2018071308 a91e9e3b0678 2 days ago 727 MB
  7. 172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713083134 a91e9e3b0678 2 days ago 727 MB
  8. 172.16.1.146:8888/wondertek/docker-test 1.0.0-20180713080550 db286edbbc18 2 days ago 727 MB
  9. 127.0.0.1:5200/docker-test 1.0.0-20180705042837 1e5b41afb0a1 10 days ago 727 MB
  10. dockerlocal/docker-test 1.0.0 7d1c3e14aede 10 days ago 643 MB
  11. docker.io/postgres 10-alpine e273e6bfba1c 2 weeks ago 39.5 MB

镜像历史层级查看:

–no-trunc 查看完整的命令

  1. [root@localhost log]# docker history 172.16.1.146:8888/wondertek/docker-test:1.0.0-20180716100040 --no-trunc
  2. IMAGE CREATED CREATED BY SIZE COMMENT
  3. sha256:c4cf1fc7cae80b238d46b5741834140c3188e45ba929c92cd1e35145c38a7bc1 40 minutes ago /bin/sh -c #(nop) EXPOSE 8080/tcp 0 B
  4. sha256:539db240ca1f6ec8b260e1af3ffa0a12a160b49d470644090bb9bfc26729b53e 40 minutes ago /bin/sh -c #(nop) ENTRYPOINT ["java" "-jar" "./app.jar"] 0 B
  5. sha256:cccad169f4dfa5b3fd6e2df754b10ae5f45541aa7d4964da4f60557643ac5796 40 minutes ago /bin/sh -c #(nop) ENTRYPOINT ["/bin/sh" "-c" "echo \"ENTRYPOINT Hello, $EVN_SET_TEST\""] 0 B
  6. sha256:e16f9ebbab1b040da6332b0fd5f0e36066219b8793fad42d1f23e8d7dbd6a412 40 minutes ago /bin/sh -c #(nop) CMD ["/bin/sh" "-c" "echo \"CMD Hello world\""] 0 B
  7. sha256:d06785ad2059e9718e3c5a6c0334d34027232efe719dcc94b0d391ce2fad650b 40 minutes ago |1 JAR_FILE=target/docker-test-1.0.0.jar /bin/sh -c echo $EVN_SET_TEST 0 B
  8. sha256:2517b2a4980975b64f648b6a9104255f13db0cc409aaa72fa66dbfe61d6e4e96 40 minutes ago /bin/sh -c #(nop) ENV EVN_SET_TEST=WELCOME TO DOCKERFILE CONTAINER! 0 B
  9. sha256:7daa3e4150f810e727993d1ddc99debe6c0c397e91f02ffd7dd65abe8e1b7171 40 minutes ago /bin/sh -c #(nop) ADD file:be73bf23e734c61fa90ae97fe0b66384632a30fa3f9c967b1afa127a2f52c198 in /app/app.jar 83.6 MB
  10. sha256:d42fa5d86ebf2508a9e3de305e04ac3e66dc8e7791c127487161a00ecd2ee710 40 minutes ago /bin/sh -c #(nop) ARG JAR_FILE 0 B
  11. sha256:7b0922396475e204d624772921470e94b7348f52d7ceb8717d4b38871387c303 40 minutes ago /bin/sh -c #(nop) VOLUME [/data1 /data2] 0 B
  12. sha256:beb6d7c2897188c448f6e33a91cbc7110aac171cc5556663e01bbd806e9fb10f 40 minutes ago /bin/sh -c #(nop) MAINTAINER csp@xxx.com 0 B
  13. sha256:a001fc27db5aae61800c78fa1c794177f07e5422525ded583ff2ccde6f6107bc 19 months ago /bin/sh -c /var/lib/dpkg/info/ca-certificates-java.postinst configure 418 kB
  14. <missing> 19 months ago /bin/sh -c set -x && apt-get update && apt-get install -y openjdk-8-jdk="$JAVA_DEBIAN_VERSION" ca-certificates-java="$CA_CERTIFICATES_JAVA_VERSION" && rm -rf /var/lib/apt/lists/* && [ "$JAVA_HOME" = "$(docker-java-home)" ] 352 MB
  15. <missing> 19 months ago /bin/sh -c #(nop) ENV CA_CERTIFICATES_JAVA_VERSION=20140324 0 B
  16. <missing> 19 months ago /bin/sh -c #(nop) ENV JAVA_DEBIAN_VERSION=8u111-b14-2~bpo8+1 0 B
  17. <missing> 19 months ago /bin/sh -c #(nop) ENV JAVA_VERSION=8u111 0 B
  18. <missing> 19 months ago /bin/sh -c #(nop) ENV JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64 0 B
  19. <missing> 19 months ago /bin/sh -c { echo '#!/bin/sh'; echo 'set -e'; echo; echo 'dirname "$(dirname "$(readlink -f "$(which javac || which java)")")"'; } > /usr/local/bin/docker-java-home && chmod +x /usr/local/bin/docker-java-home 87 B
  20. <missing> 19 months ago /bin/sh -c #(nop) ENV LANG=C.UTF-8 0 B
  21. <missing> 19 months ago /bin/sh -c echo 'deb http://deb.debian.org/debian jessie-backports main' > /etc/apt/sources.list.d/jessie-backports.list 55 B
  22. <missing> 19 months ago /bin/sh -c apt-get update && apt-get install -y --no-install-recommends bzip2 unzip xz-utils && rm -rf /var/lib/apt/lists/* 1.29 MB
  23. <missing> 19 months ago /bin/sh -c apt-get update && apt-get install -y --no-install-recommends bzr git mercurial openssh-client subversion procps && rm -rf /var/lib/apt/lists/* 123 MB
  24. <missing> 19 months ago /bin/sh -c apt-get update && apt-get install -y --no-install-recommends ca-certificates curl wget && rm -rf /var/lib/apt/lists/* 44.3 MB
  25. <missing> 19 months ago /bin/sh -c #(nop) CMD ["/bin/bash"] 0 B
  26. <missing> 19 months ago /bin/sh -c #(nop) ADD file:1d214d2782eaccc743b8d683ccecf2f87f12a0ecdfbcd6fdf4943ce616f23870 in / 123 MB

私有镜像中心查看,这里使用的是前面介绍的harbor:

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