《Netkiller Spring Cloud 手札》之 Spring Boot with Docker
阿新 • • 發佈：2019-04-13
Netkiller Spring Cloud 手札
Spring Cloud Cookbook
Mr. Neo Chan, 陳景峰(BG7NYT)
中國廣東省深圳市望海路半島城邦三期
518067
+86 13113668890
<[email protected]>
MMDVM Hotspot:
YSF80337 - CN China 1 - W24166/TG46001
BM_China_46001 - DMR Radio ID 4600441
$Id: book.xml 606 2013-05-29 09:52:58Z netkiller $
版權 © 2015-2019 Neo Chan
版權宣告
轉載請與作者聯絡，轉載時請務必標明文章原始出處和作者資訊及本宣告。
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2.39. Spring Boot with Docker
2.39.1. 手工編譯映象
在專案根目錄建立 Dockerfile 檔案
% cat Dockerfile FROM openjdk VOLUME /tmp COPY target/*.jar app.jar ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
編譯映象
mvn package docker build -t netkiller/docker . % docker images | grep netkiller netkiller/docker latest ed359b6ffcad 16 seconds ago 105MB % docker run -ti --entrypoint /bin/sh netkiller/docker sh-4.2# ls app.jar bin boot dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var sh-4.2#
啟動映象測試
docker run -p 8080:8080 netkiller/docker neo@MacBook-Pro ~ % curl http://localhost:8080 Hello Docker World
2.39.2. Dockerfile 放在 src/main/docker/Dockerfile 下
% cat src/main/docker/Dockerfile FROM openjdk VOLUME /tmp COPY target/*.jar app.jar ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
mvn package docker rmi netkiller/docker -f docker build -t netkiller/docker -f src/main/docker/Dockerfile . docker run -p 8080:8080 netkiller/docker
neo@MacBook-Pro ~ % curl http://localhost:8080 Hello Docker World
2.39.3. 通過引數指定 Springboot 檔案
% cat src/main/docker/Dockerfile
FROM openjdk:8-jdk-alpine
VOLUME /tmp
ARG JAR_FILE
COPY ${JAR_FILE} app.jar
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
mvn package docker rmi netkiller/docker -f docker build --build-arg JAR_FILE=target/*.jar -t netkiller/docker -f src/main/docker/Dockerfile . docker run -p 8080:8080 netkiller/docker
2.39.4. SPRING_PROFILES_ACTIVE 指定配置檔案
% docker run -e "SPRING_PROFILES_ACTIVE=prod" -p 8080:8080 netkiller/docker
2.39.5. Maven + Dockerfile
專案地址 https://github.com/spotify/dockerfile-maven
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<mainClass>cn.netkiller.docker.Application</mainClass>
</configuration>
</plugin>
<plugin>
<groupId>com.spotify</groupId>
<artifactId>dockerfile-maven-plugin</artifactId>
<version>1.4.10</version>
<executions>
<execution>
<id>default</id>
<goals>
<goal>build</goal>
<goal>push</goal>
</goals>
</execution>
</executions>
<configuration>
<dockerfile>${project.basedir}/src/main/docker/Dockerfile</dockerfile>
<repository>${docker.image.prefix}/${project.artifactId}</repository>
<tag>${project.version}</tag>
<buildArgs>
<JAR_FILE>target/${project.build.finalName}.jar</JAR_FILE>
</buildArgs>
<resources>
<resource>
<targetPath>/</targetPath>
<directory>${project.build.directory}</directory>
<include>${project.build.finalName}.jar</include>
</resource>
</resources>
</configuration>
</plugin>
</plugins>
</build>
neo@MacBook-Pro ~/git/springcloud/docker % mvn dockerfile:build [INFO] Scanning for projects... [INFO] [INFO] ------------------------< cn.netkiller:docker >------------------------- [INFO] Building docker 0.0.1-SNAPSHOT [INFO] --------------------------------[ jar ]--------------------------------- [INFO] [INFO] --- dockerfile-maven-plugin:1.4.10:build (default-cli) @ docker --- [INFO] dockerfile: /Users/neo/git/springcloud/docker/src/main/docker/Dockerfile [INFO] contextDirectory: /Users/neo/git/springcloud/docker [INFO] Building Docker context /Users/neo/git/springcloud/docker [INFO] Path(dockerfile): /Users/neo/git/springcloud/docker/src/main/docker/Dockerfile [INFO] Path(contextDirectory): /Users/neo/git/springcloud/docker [INFO] [INFO] Image will be built as netkiller/docker:0.0.1-SNAPSHOT [INFO] [INFO] Step 1/7 : FROM openjdk [INFO] [INFO] Pulling from library/openjdk [INFO] Digest: sha256:38ec2c78a60ec4d5773c93534e433237be154ff5afa476965a68837b43ef2f19 [INFO] Status: Image is up to date for openjdk:latest [INFO] ---> b697a97ee8e1 [INFO] Step 2/7 : MAINTAINER Netkiller <[email protected]> [INFO] [INFO] ---> Using cache [INFO] ---> e6fd68ec1ce8 [INFO] Step 3/7 : VOLUME /tmp [INFO] [INFO] ---> Using cache [INFO] ---> 78b146e1a8a0 [INFO] Step 4/7 : ARG JAR_FILE [INFO] [INFO] ---> Using cache [INFO] ---> 2c60b65d49dc [INFO] Step 5/7 : COPY ${JAR_FILE} app.jar [INFO] [INFO] ---> Using cache [INFO] ---> 3186f0425f1d [INFO] Step 6/7 : CMD ["java", "-version"] [INFO] [INFO] ---> Using cache [INFO] ---> d14b8d6360fe [INFO] Step 7/7 : ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"] [INFO] [INFO] ---> Using cache [INFO] ---> 68e424cf5eab [INFO] Successfully built 68e424cf5eab [INFO] Successfully tagged netkiller/docker:0.0.1-SNAPSHOT [INFO] [INFO] Detected build of image with id 68e424cf5eab [INFO] Building jar: /Users/neo/git/springcloud/docker/target/docker-0.0.1-SNAPSHOT-docker-info.jar [INFO] Successfully built netkiller/docker:0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 9.413 s [INFO] Finished at: 2019-04-13T05:39:07+08:00 [INFO] ------------------------------------------------------------------------
2.39.6. Maven 不使用 Dockerfile 檔案
專案地址 https://github.com/spotify/docker-maven-plugin
<plugin>
<groupId>com.spotify</groupId>
<artifactId>docker-maven-plugin</artifactId>
<version>1.2.0</version>
<configuration>
<imageName>${docker.image.prefix}/${project.artifactId}</imageName>
<baseImage>openjdk</baseImage>
<tag>${project.version}</tag>
<maintainer>${docker.maintainer}</maintainer>
<volumes>/tmp</volumes>
<workdir>/</workdir>
<cmd>["java", "-version"]</cmd>
<entryPoint>["java", "-Djava.security.egd=file:/dev/./urandom", "-jar", "/${project.build.finalName}.jar"]</entryPoint>
<!-- copy the service's jar file from target into the root directory of the image -->
<resources>
<resource>
<targetPath>/</targetPath>
<directory>${project.build.directory}</directory>
<include>${project.build.finalName}.jar</include>
</resource>
</resources>
</configuration>
</plugin>
構建映象 mvn clean package docker:build
neo@MacBook-Pro ~/git/springcloud/webflux % mvn docker:build
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------< cn.netkiller:webflux >------------------------
[INFO] Building webflux 0.0.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- docker-maven-plugin:1.2.0:build (default-cli) @ webflux ---
[INFO] Using authentication suppliers: [ConfigFileRegistryAuthSupplier]
[INFO] Copying /Users/neo/git/springcloud/webflux/target/webflux-0.0.1-SNAPSHOT.jar -> /Users/neo/git/springcloud/webflux/target/docker/webflux-0.0.1-SNAPSHOT.jar
[INFO] Building image netkiller/webflux
Step 1/7 : FROM openjdk
---> b697a97ee8e1
Step 2/7 : MAINTAINER netkiller
---> Using cache
---> c275f5dc2815
Step 3/7 : WORKDIR /
---> Using cache
---> 27815e0b4455
Step 4/7 : ADD /webflux-0.0.1-SNAPSHOT.jar //
---> Using cache
---> 78b0fe2a827d
Step 5/7 : ENTRYPOINT ["java", "-Djava.security.egd=file:/dev/./urandom", "-jar", "/webflux-0.0.1-SNAPSHOT.jar"]
---> Using cache
---> 66d5499c8ba3
Step 6/7 : CMD ["java", "-version"]
---> Using cache
---> 080a1468d88b
Step 7/7 : VOLUME /tmp
---> Using cache
---> 60debfac7b7c
ProgressMessage{id=null, status=null, stream=null, error=null, progress=null, progressDetail=null}
Successfully built 60debfac7b7c
Successfully tagged netkiller/webflux:latest
[INFO] Built netkiller/webflux
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.485 s
[INFO] Finished at: 2019-04-13T05:41:41+08:00
[INFO] ------------------------------------------------------------------------
2.39.7. 推送映象到倉庫
neo@MacBook-Pro ~ % docker push netkiller/docker The push refers to repository [docker.io/netkiller/docker] 100ff47f36fe: Pushed a7aafc769de1: Mounted from library/openjdk 2666aafcfdd9: Mounted from library/openjdk c4a7cf6a6169: Mounted from library/openjdk latest: digest: sha256:3078fea95c633f007be33b829efae0ff8e9d78ad463925af7d07752c95eb43a3 size: 1165
2.39.8. [ERROR] No plugin found for prefix 'dockerfile' in the current project and in the plugin groups [org.apache.maven.plugins, org.codehaus.mojo] available from the repositories [local (/Users/neo/.m2/repository), central (https://repo.maven.apache.org/maven2)] -> [Help 1]
在maven的conf/setting.xml中要加入:
neo@MacBook-Pro ~ % mvn -version
Apache Maven 3.6.0 (97c98ec64a1fdfee7767ce5ffb20918da4f719f3; 2018-10-25T02:41:47+08:00)
Maven home: /usr/local/Cellar/maven/3.6.0/libexec
Java version: 12, vendor: Oracle Corporation, runtime: /Library/Java/JavaVirtualMachines/jdk-12.jdk/Contents/Home
Default locale: en_CN, platform encoding: UTF-8
OS name: "mac os x", version: "10.14.5", arch: "x86_64", family: "mac"
vim /usr/local/Cellar/maven/3.6.0/libexec/conf/settings.xml
<pluginGroups>
<pluginGroup>com.spotify</pluginGroup>
</pluginGroups>