jenkins通过程序创建子节点

梦里梦外; 2022-05-24 00:48 144阅读 0赞

**目录**

*  [Jenkins CLI][]
 *  [Command create-node][]
    
     *  [通过shell来创建节点][shell]
     *  [通过java程序来创建节点][java]

# Jenkins CLI #

Jenkins有一个内置的命令行，允许通过程序或shell请求Jenkins。即Jenkins CLI

Jenkins CLI 包含：create-node，update-node，create-job，copy-job，offline-node等命令

jenkins-cli.jar包可以通过自己部署的jenkins，http:*jenkins.example.com/cli 来下载。*

# Command create-node #

创建节点命令介绍

java -jar jenkins-cli.jar -s http://10.1.0.243:8080/jenkins/ create-node [NODE]
    Creates a new node by reading stdin as a XML configuration.
    NODE : Name of the node

通过上面命令了解到，该命令需要从输入流获取xml配置文件。而节点的xml文件结构可以参考手工创建节点后在.jenkins下面  
/home/user/.jenkins/nodes/xxx/config.xml生成的文件

## 通过shell来创建节点 ##

创建jenkins-create-node.sh文件，如下

NS_URL='http://10.1.0.243:8180/jenkins'
    NODE_NAME=$2
    NODE_SLAVE_HOME=$1
    EXECUTORS=1
    SSH_PORT=22
    CRED_ID=$3
    HOST_NAME=$4
    JAVA_OPT=$5
    JAVA_PATH=$6
    
    cat <<EOF | java -jar ./jenkins-cli.jar -s ${NS_URL} create-node $2
    <slave>
      <name>${NODE_NAME}</name>
      <description></description>
      <remoteFS>$1</remoteFS>
      <numExecutors>${EXECUTORS}</numExecutors>
      <mode>NORMAL</mode>
      <retentionStrategy class="hudson.slaves.RetentionStrategy$Always"/>
      <launcher class="hudson.plugins.sshslaves.SSHLauncher" plugin="ssh-slaves@1.9">
        <host>$4</host>
        <port>${SSH_PORT}</port>
        <credentialsId>${CRED_ID}</credentialsId>
        <jvmOptions>${JAVA_OPT}</jvmOptions>
        <javaPath>${JAVA_PATH}</javaPath>
      </launcher>
      <label></label>
      <nodeProperties/>
      <userId>anonymous</userId>
    </slave>
    EOF

然后通过sh jenkins-create-node.sh  /home/bossbuild/remote-jenkins\_243test  testll  89060efd-e391-4586-bfe7-95d6b74cfb65 10.1.4.82 -Dfile.encoding=gbk /home/bossbuild/jdk1.7.0\_45/bin/java 来执行命令

89060efd-e391-4586-bfe7-95d6b74cfb65是jenkins为用户加密后生成的

## 通过java程序来创建节点 ##

通过process.getOutputStream()来写入xml，因为Process在程序员的角度是OuputStream，对于程序的角度就是STDIN

Process process = Runtime.getRuntime().exec("java -jar ./jenkins-cli.jar -s http://10.1.0.243:8180/jenkins create-node  aaa");
    OutputStream stdin = process.getOutputStream();
    InputStream stdout = process.getInputStream();
    BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(stdin));
    writer.write("<slave><name>jobname</name><description></description><remoteFS>/home/bossbuild/remote-jenkins_243test</remoteFS><numExecutors>1</numExecutors><mode>NORMAL</mode><retentionStrategy class='hudson.slaves.RetentionStrategy$Always'/><launcher class='hudson.plugins.sshslaves.SSHLauncher' plugin='ssh-slaves@1.9'><host>10.1.4.82</host><port>22</port><credentialsId>89060efd-e391-4586-bfe7-95d6b74cfb65</credentialsId><jvmOptions>-Dfile.encoding=gbk</jvmOptions><javaPath>/home/bossbuild/jdk1.7.0_45/bin/java</javaPath></launcher><label></label><nodeProperties/><userId>anonymous</userId></slave>");
    writer.flush(); 
    writer.close();

[Jenkins CLI]: http://www.lilihongblog.com/Blog/jenkins+create+job+by+code#HJenkinsCLI
[Command create-node]: http://www.lilihongblog.com/Blog/jenkins+create+job+by+code#HCommandcreate-node
[shell]: http://www.lilihongblog.com/Blog/jenkins+create+job+by+code#H901A8FC7shell6765521B5EFA828270B9
[java]: http://www.lilihongblog.com/Blog/jenkins+create+job+by+code#H901A8FC7java7A0B5E8F6765521B5EFA828270B9