一. 全局工具配置

MAVEN和JDK配置

1. MAVEN我选的默认设置和全局配置

2. JDK的JAVA_HOME用的是/opt/java/openjdk
   注：此jenkins运行在Docker内部，如果设置容器外部的Java环境变量在构建任务的时候会报找不到JAVA_HOME路径错误

3. Maven安装Name选择下拉框和Linux maven版本号一直的名字。

二. 系统配置相关变量( Configure System [Jenkins])

1. 配置全局属性，配置环境变量的键值对。
   注: Java的键值对可以进入容器输入echo $JAVA_HOME查看

   键
   CLASS_PATH
   值
   .:$JAV{A}_{H}OME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
   键
   JAVA_HOME
   值
   /opt/java/openjdk
   键
   M2_HOME
   值
   /usr/local/maven/apache-maven-3.3.9
   键
   PATH
   值
   $PATH:$M2_HOME/bin
   
   

三. 工作空间，主目录相关问题

1. 如果控制台输出报不能在workspace工作空间执行mvn，或找不到目录。可以在jenkins_home下的config.xml修改工作空间位置workspaceDir标签下。
   

四. Job工作任务相关配置

1. Build配置
   Root POM:
   pom.xml
   Goals and options：
   clean package -U -DskipTests=true

2. Post Steps
   调用顶层Maven目标
   Maven版本选择刚刚在全局和系统配置的版本
   目标
   clean
   package
   

3. 执行(立即构建)
   最后输出
   Started by user root
   Running as SYSTEM
   Building in workspace /usr/local/jenkins/workspace/maven-test
   The recommended git tool is: NONE
   using credential e7fab。。。
   .
   .
   .
   .
   .
   [INFO] — maven-jar-plugin:3.2.0:jar (default-jar) @ flink-server —
   [INFO] Building jar: /usr/local/jenkins/workspace/maven-test/modules/flink-server/target/flink-server-0.0.1-SNAPSHOT.jar
   [INFO]
   [INFO] ------------------------------------------------------------------------
   [INFO] Building commons 0.0.1-SNAPSHOT
   [INFO] ------------------------------------------------------------------------
   [INFO]
   [INFO] — maven-clean-plugin:3.1.0:clean (default-clean) @ commons —
   [INFO] Deleting /usr/local/jenkins/workspace/maven-test/commons/target
   [INFO]
   [INFO] — maven-resources-plugin:3.2.0:resources (default-resources) @ commons —
   [INFO] Using ‘UTF-8’ encoding to copy filtered resources.
   [INFO] Using ‘UTF-8’ encoding to copy filtered properties files.
   [INFO] skip non existing resourceDirectory /usr/local/jenkins/workspace/maven-test/commons/src/main/resources
   [INFO] skip non existing resourceDirectory /usr/local/jenkins/workspace/maven-test/commons/src/main/resources
   [INFO]
   [INFO] — maven-compiler-plugin:3.8.1:compile (default-compile) @ commons —
   [INFO] No sources to compile
   [INFO]
   [INFO] — maven-resources-plugin:3.2.0:testResources (default-testResources) @ commons —
   [INFO] Not copying test resources
   [INFO]
   [INFO] — maven-compiler-plugin:3.8.1:testCompile (default-testCompile) @ commons —
   [INFO] Not compiling test sources
   [INFO]
   [INFO] — maven-surefire-plugin:2.22.2:test (default-test) @ commons —
   [INFO] Tests are skipped.
   [INFO]
   [INFO] — maven-jar-plugin:3.2.0:jar (default-jar) @ commons —
   [WARNING] JAR will be empty - no content was marked for inclusion!
   [INFO] Building jar: /usr/local/jenkins/workspace/maven-test/commons/target/commons-0.0.1-SNAPSHOT.jar
   [INFO] ------------------------------------------------------------------------
   [INFO] Reactor Summary:
   [INFO]
   [INFO] big-Data … SUCCESS [ 0.439 s]
   [INFO] modules … SUCCESS [ 0.002 s]
   [INFO] flink-server … SUCCESS [ 5.727 s]
   [INFO] commons … SUCCESS [ 0.396 s]
   [INFO] ------------------------------------------------------------------------
   [INFO] BUILD SUCCESS
   [INFO] ------------------------------------------------------------------------
   [INFO] Total time: 9.554 s
   [INFO] Finished at: 2021-12-24T10:22:53+00:00
   [INFO] Final Memory: 30M/143M
   [INFO] ------------------------------------------------------------------------
   Finished: SUCCESS

可以在工作目录查看到各jar包
Building in workspace /usr/local/jenkins/workspace/maven-test
工作目录被我修改过之前有报错找不到目录
mvn没有对应pom.xml
执行命令
find / -name maven-test
/var/lib/docker/overlay2/e723d6386a89ca2a18c74de68ccbb86ec91fe8252b6fdb93c41e9e7470c39ecd/diff/usr/local/jenkins/workspace/maven-test
/var/lib/docker/overlay2/e723d6386a89ca2a18c74de68ccbb86ec91fe8252b6fdb93c41e9e7470c39ecd/merged/usr/local/jenkins/workspace/maven-test
/usr/local/jenkins/jobs/maven-test

[root@iZuf6bvvjcih5uryul8zleZ workspace]# cd /usr/local/jenkins/jobs/maven-test
[root@maven-test]#
[root@maven-test]# ls
builds config.xml modules nextBuildNumber

[root@maven-test]# cd modules/
[root@modules]# ls
‘com.bigDataKaTeX parse error: Double superscript at position 12: big-Data' '̲com.bigDatacommons’ ‘com.bigDataKaTeX parse error: Double superscript at position 16: flink-server' '̲com.bigDatamodules’
[root@modules]# cd com.bigData$flink-server/
[root@com.bigDataKaTeX parse error: Expected 'EOF', got '#' at position 14: flink-server]#̲ ks -bash: ks:…flink-server]# ls
builds config.xml nextBuildNumber
[root@com.bigData$flink-server]# cd builds/
[root@builds]# ls
13 14 15 permalinks
[root@builds]# cd 15/
[root@15]# ls
data build.xml log
[root@15]# cd data/
[root@data ]# ls
com.bigData
[root@data]# cd com.bigData/
[root@com.bigData]# ls
flink-server
[root@com.bigData]# cd flink-server/
[root@flink-server]# ls
0.0.1-SNAPSHOT
[root@flink-server]# cd 0.0.1-SNAPSHOT/
[root@0.0.1-SNAPSHOT]# ls
flink-server-0.0.1-SNAPSHOT.jar flink-server-0.0.1-SNAPSHOT.pom
[root@0.0.1-SNAPSHOT]#

最后可以看到各模块生成的Jar包了。但是包结构还是很奇怪。
控制台输出的工作目录其实是Docker容器的位置，容器外实际是在另外一个位置，通过find / -name可以看出

find / -name maven-test
/var/lib/docker/overlay2/e723d6386a89ca2a18c74de68ccbb86ec91fe8252b6fdb93c41e9e7470c39ecd/diff/usr/local/jenkins/workspace/maven-test
/var/lib/docker/overlay2/e723d6386a89ca2a18c74de68ccbb86ec91fe8252b6fdb93c41e9e7470c39ecd/merged/usr/local/jenkins/workspace/maven-test
/usr/local/jenkins/jobs/maven-test

应该还需配置下工作空间的挂载目录，可以尝试运行中的容器编辑配置json配置，后续会继续调整，jenkins和maven pom配置的还是有些问题。