使用jib打包docker鏡像實戰(zhàn)
更新時間：2018年08月27日 08:31:53 作者：codecraft
這篇文章主要介紹了使用jib打包docker鏡像實戰(zhàn)，小編覺得挺不錯的，現(xiàn)在分享給大家，也給大家做個參考。一起跟隨小編過來看看吧
序
本文主要研究一下如何使用google的jib打包docker鏡像
Jib 是谷歌最新開源的 Java 應(yīng)用的 Docker 鏡像生成工具，可以通過 Gradle 或 Maven 直接生成鏡像并上傳到倉庫而不需要 Dockerfile 文件或者其他插件；Jib 支持將資源文件和類分層打包，可以大幅度提升生成鏡像的速度
有一些其他的插件也可以通過 Docker 實現(xiàn)生成鏡像，如com.palantir.docker等，但是都需要額外配置 Dockerfile, 如果應(yīng)用僅需要通過 Dockerfile 構(gòu)建鏡像，建議使用 Jib 來提升構(gòu)建和上傳速度
maven
<plugin>
<groupId>com.google.cloud.tools</groupId>
<artifactId>jib-maven-plugin</artifactId>
<version>0.9.9</version>
</plugin>
配置
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<maven.build.timestamp.format>yyyyMMdd</maven.build.timestamp.format>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>com.google.cloud.tools</groupId>
<artifactId>jib-maven-plugin</artifactId>
<version>0.9.9</version>
<configuration>
<container>
<jvmFlags>
<jvmFlag>-Xms512m</jvmFlag>
</jvmFlags>
<ports>
<port>8080</port>
</ports>
<useCurrentTimestamp>true</useCurrentTimestamp>
</container>
<from>
<image>java:8u172-jre-alpine</image>
</from>
<to>
<image>jib-demo:${maven.build.timestamp}</image>
</to>
<allowInsecureRegistries>true</allowInsecureRegistries>
<extraDirectory>${project.basedir}/src/main/jib</extraDirectory>
</configuration>
</plugin>
</plugins>
</build>
這里指定base image為java:8u172-jre-alpine
同時指定生成的image名稱為jib-demo:${maven.build.timestamp}
container標(biāo)簽可以指定相關(guān)參數(shù)，比如jvmFlags指定JVM參數(shù)，ports指定expose的端口號
extraDirectory用于指定要添加的目錄，默認(rèn)為${project.basedir}/src/main/jib，即該目錄下的文件夾會在docker鏡像里頭同步創(chuàng)建，目錄層級關(guān)系以jib下目錄層級關(guān)系為準(zhǔn)。比如該目錄下有app/resources/demo.txt，則對應(yīng)該鏡像目錄為/app/resources/demo.txt
打包
mvn compile jib:dockerBuild -X
使用jib:dockerBuild是在本地打包鏡像，不push到遠(yuǎn)程，-X參數(shù)是顯示debug信息
如果使用jib:build命令，則打包之后push到遠(yuǎn)程
輸出日志實例：
[DEBUG] TIMING Building image to Docker daemon [DEBUG] RUNNING Building image to Docker daemon [INFO] Getting base image java:8u172-jre-alpine... [DEBUG] TIMING Pulling base image manifest [DEBUG] RUNNING Pulling base image manifest [DEBUG] TIMING Building application layers [DEBUG] RUNNING Building application layers [INFO] Building dependencies layer... [DEBUG] TIMING Building dependencies layer [DEBUG] RUNNING Building dependencies layer [INFO] Building resources layer... [DEBUG] TIMING Building resources layer [DEBUG] RUNNING Building resources layer [INFO] Building classes layer... [DEBUG] TIMING Building classes layer [DEBUG] RUNNING Building classes layer [INFO] Building extra files layer... [DEBUG] TIMING Building extra files layer [DEBUG] RUNNING Building extra files layer [DEBUG] TIMED Building application layers : 3.498 ms [DEBUG] Building application layers : 3.498 ms [DEBUG] Building extra files layer built sha256:0a9321c621ee2c138d9a93f4ba47f825e20dd7aca0e9206f30bf560122fdaa31 [DEBUG] Building resources layer built sha256:933116c8da4db70000355b750af2f3b5c4545e74db7b5eb0a5e37689ef86d44f [DEBUG] Building classes layer built sha256:a99dbde7d015ba3d15b9265ac38f6536d65b00dd2a864b7003a34742f483939b [DEBUG] TIMED Building extra files layer : 33.718 ms [DEBUG] TIMED Building classes layer : 33.901 ms [DEBUG] Building extra files layer : 33.718 ms [DEBUG] TIMED Building resources layer : 34.062 ms [DEBUG] Building resources layer : 34.062 ms [DEBUG] Building classes layer : 33.901 ms [DEBUG] Building dependencies layer built sha256:a19961ec08095eb70ca3a070945223dcf51500a255a745272276139bf0a29f4e [DEBUG] TIMED Building dependencies layer : 1047.83 ms [DEBUG] Building dependencies layer : 1047.83 ms [INFO] The base image requires auth. Trying again for java:8u172-jre-alpine... //...... [DEBUG] TIMED Pulling base image manifest : 8959.891 ms [DEBUG] Pulling base image manifest : 8959.891 ms [DEBUG] TIMING Setting up base image caching [DEBUG] RUNNING Setting up base image caching [DEBUG] TIMED Setting up base image caching : 0.824 ms [DEBUG] Setting up base image caching : 0.824 ms [DEBUG] TIMING Pulling base image layer sha256:500c0ac4cdc58aee9a008e70466eeec8a4b74b25c29d003764635d2fe1b42827 [DEBUG] RUNNING Pulling base image layer sha256:500c0ac4cdc58aee9a008e70466eeec8a4b74b25c29d003764635d2fe1b42827 [DEBUG] TIMING Pulling base image layer sha256:aa38cd8c77d7320c7489327775e074580db5f23467198aab3e79c7db5cdfbdca [DEBUG] TIMING Pulling base image layer sha256:cb56d62302ec31640b40ca15843e7af6be145966a1064c78ea7afd6f10ce49e6 [DEBUG] RUNNING Pulling base image layer sha256:cb56d62302ec31640b40ca15843e7af6be145966a1064c78ea7afd6f10ce49e6 [DEBUG] TIMING Pulling base image layer sha256:ff3a5c916c92643ff77519ffa742d3ec61b7f591b6b7504599d95a4a41134e28 [DEBUG] RUNNING Pulling base image layer sha256:ff3a5c916c92643ff77519ffa742d3ec61b7f591b6b7504599d95a4a41134e28 [DEBUG] RUNNING Pulling base image layer sha256:aa38cd8c77d7320c7489327775e074580db5f23467198aab3e79c7db5cdfbdca [DEBUG] TIMED Pulling base image layer sha256:500c0ac4cdc58aee9a008e70466eeec8a4b74b25c29d003764635d2fe1b42827 : 612.524 ms [DEBUG] Pulling base image layer sha256:500c0ac4cdc58aee9a008e70466eeec8a4b74b25c29d003764635d2fe1b42827 : 612.524 ms [DEBUG] TIMED Pulling base image layer sha256:ff3a5c916c92643ff77519ffa742d3ec61b7f591b6b7504599d95a4a41134e28 : 9985.702 ms [DEBUG] Pulling base image layer sha256:ff3a5c916c92643ff77519ffa742d3ec61b7f591b6b7504599d95a4a41134e28 : 9985.702 ms [DEBUG] TIMED Pulling base image layer sha256:aa38cd8c77d7320c7489327775e074580db5f23467198aab3e79c7db5cdfbdca : 27267.144 ms [DEBUG] Pulling base image layer sha256:aa38cd8c77d7320c7489327775e074580db5f23467198aab3e79c7db5cdfbdca : 27267.144 ms [DEBUG] TIMED Pulling base image layer sha256:cb56d62302ec31640b40ca15843e7af6be145966a1064c78ea7afd6f10ce49e6 : 54734.971 ms [DEBUG] Pulling base image layer sha256:cb56d62302ec31640b40ca15843e7af6be145966a1064c78ea7afd6f10ce49e6 : 54734.971 ms [DEBUG] TIMING Building container configuration [DEBUG] RUNNING Building container configuration [INFO] Finalizing... [DEBUG] TIMED Building container configuration : 0.462 ms [DEBUG] Building container configuration : 0.462 ms [INFO] Loading to Docker daemon... [DEBUG] TIMED Building image to Docker daemon : 65862.956 ms [DEBUG] Building image to Docker daemon : 65862.956 ms [INFO] [INFO] Container entrypoint set to [java, -Xms512m, -cp, /app/resources/:/app/classes/:/app/libs/*, com.example.JibDemoApplication] [INFO] [INFO] Built image to Docker daemon as jib-demo:20180826 [INFO] [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 01:07 min [INFO] Finished at: 2018-08-26T21:38:11+08:00 [INFO] Final Memory: 26M/493M [INFO] ------------------------------------------------------------------------
查看鏡像
docker inspect jib-demo:20180826
[
{
"Id": "sha256:7554492dde84091bc6d015b29ec4bf854bb841b9ec4d8f7bef8b51a8ec59ef94",
"RepoTags": [
"jib-demo:20180826"
],
"RepoDigests": [],
"Parent": "",
"Comment": "",
"Created": "2018-08-26T13:37:05.65Z",
"Container": "",
"ContainerConfig": {
"Hostname": "",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": null,
"Cmd": null,
"Image": "",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": null,
"OnBuild": null,
"Labels": null
},
"DockerVersion": "",
"Author": "",
"Config": {
"Hostname": "",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"ExposedPorts": {
"8080/tcp": {}
},
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/opt/jdk1.8.0_172/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"JAVA_HOME=/opt/jdk1.8.0_172"
],
"Cmd": [],
"Image": "",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": [
"java",
"-Xms512m",
"-cp",
"/app/resources/:/app/classes/:/app/libs/*",
"com.example.JibDemoApplication"
],
"OnBuild": null,
"Labels": {}
},
"Architecture": "amd64",
"Os": "linux",
"Size": 186079594,
"VirtualSize": 186079594,
"GraphDriver": {
"Data": null,
"Name": "aufs"
},
"RootFS": {
"Type": "layers",
"Layers": [
"sha256:cd7100a72410606589a54b932cabd804a17f9ae5b42a1882bd56d263e02b6215",
"sha256:317e0b42ef29551507adc792c2dbc389af85c5d68900cf0f08abe907cbd4e199",
"sha256:d6fd5302a9ee64c43b46153e9678153819d6d0e247381acbbe6cbe6ed9de0366",
"sha256:417c6bd0930eb69d17ae5d601898a6a012900ca33c69e612840a3042b2451cbb",
"sha256:8309a5eed5158c5639acb664312ddc7027a2ecb172744f548d6d9fb5f918a744",
"sha256:6ef8c795d7a5e2a07f51d572a90b820e089f89adf30798193f4f3f410a261415",
"sha256:9990447f3d37e3f2dc70718d0ea6602cf7843091d8bbe395f552c9c5dd10551c",
"sha256:ff7910aaeee962d1d86e00742030378a2758da59d8c8cda3fe44314bbddd8081"
]
},
"Metadata": {
"LastTagTime": "0001-01-01T00:00:00Z"
}
}
]
可以看到j(luò)ava -cp指定了/app/libs/、/app/resources/、/app/classes/這三個文件夾
小結(jié)
jib默認(rèn)執(zhí)行如下操作
COPY libs /app/libs/ COPY resources /app/resources/ COPY classes /app/classes/
也就是將libs拷貝到/app/libs，將resources拷貝到/app/resources，將classes拷貝到/app/classes.
doc
- jib
- Building Docker Image for a Spring Boot App With Jib
- build-containers-faster-with-jib-a-google-image-build-tool-for-java-applications
以上就是本文的全部內(nèi)容，希望對大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。
相關(guān)文章
使用docker的python基礎(chǔ)鏡像時要指定patch版本原理
這篇文章主要為大家介紹了使用docker的python基礎(chǔ)鏡像時要指定patch版本原理,有需要的朋友可以借鑒參考下,希望能夠有所幫助,祝大家多多進(jìn)步,早日升職加薪2023-10-10
Docker與虛擬機（VM）主要差異在于實現(xiàn)方式及效率,Docker通過打包應(yīng)用及其依賴于容器中,直接與操作系統(tǒng)內(nèi)核交互,實現(xiàn)跨系統(tǒng)運行,而無需模擬整個操作系統(tǒng),這使得Docker在體積、啟動速度及性能上優(yōu)于虛擬機,虛擬機通過模擬硬件環(huán)境2024-11-11
這篇文章主要介紹了docker-compose中變量的使用方式,具有很好的參考價值,希望對大家有所幫助,如有錯誤或未考慮完全的地方,望不吝賜教2024-01-01
Docker實踐—CentOS7上部署Kubernetes詳解
kubernetes作為docker的管理工具是由Google開源提供，但是kubernetes的安裝一直折磨著運維人員，在這一系列的文章中我將會由kubernetes的安裝講起為大家介紹kubernetes的安裝使用等過程，也作為自己的學(xué)習(xí)筆記。2017-01-01
Docker忽略文件是指在Docker鏡像構(gòu)建過程中,用于忽略指定文件或目錄的一種機制,本文主要介紹了Docker中忽略文件的實現(xiàn),具有一定的參考價值,感興趣的可以了解一下2023-10-10
這篇文章主要介紹了Docker 私有倉庫恢復(fù)實例詳解的相關(guān)資料,這里提供了詳細(xì)的實現(xiàn)步驟，及注意事項，完成docker私有倉庫的恢復(fù)，需要的朋友可以參考下2016-11-11
使用dockerfile構(gòu)建nginx鏡像的方法示例
這篇文章主要介紹了使用dockerfile構(gòu)建nginx鏡像的方法示例，小編覺得挺不錯的，現(xiàn)在分享給大家，也給大家做個參考。一起跟隨小編過來看看吧2018-09-09
啟動docker錯誤systemctl status docker.service問題及解決
文章討論了啟動Docker和執(zhí)行docker ps命令失敗的問題,但docker -v顯示成功,解決辦法包括在阿里云容器鏡像中找到鏡像加速器或使用公共鏡像地址,默認(rèn)情況下,Docker使用官方地址2025-01-01
在Docker容器中使用iptables時的最小權(quán)限的開啟方法
這篇文章主要介紹了在Docker容器中使用iptables時的最小權(quán)限的開啟方法的相關(guān)資料,需要的朋友可以參考下2017-01-01
Docker 搭建 Tomcat 運行環(huán)境的方法
這篇文章主要介紹了Docker 搭建 Tomcat 運行環(huán)境的方法,Docker與虛擬機及搭建過程，介紹的非常詳細(xì)，需要的朋友可以參考下2016-10-10