Jenkins代理和主服务器上的Git路径不同

Question

我遇到以下问题：我在GCE（Google Compute Engine）上运行Jenkins，并将其配置为在需要时动态启动代理。主服务器和代理都安装了git，但是路径不同。在主Git上，/opt/bitnami/git/bin/git上，在Git上的/usr/bin/git上。

我在Global tool configuration中配置了两个Git工具，如下所示：

我的管道作业设置如下：

Jenkins文件的相关部分在这里：

pipeline {

    agent {
        label 'ubuntu-1604'
    }

    triggers {
        pollSCM('H/5 * * * *')
    }

    tools {
        jdk 'JDK11'
        git 'agent-git'
    }

    stages {

        stage ('Checkout Source') {
            steps {
                sh "echo HOSTNAME is: `$hostname`"
                checkout scm
            }
        }

运行此作业时，它失败，因为它对主服务器和代理使用相同的Git路径。我收到以下错误：

Checking out git git@bitbucket.org:my-repo.git into /opt/bitnami/apps/jenkins/jenkins_home/workspace/test-pipeline@script to read Jenkinsfile
using credential XXXXX
Cloning the remote Git repository
Cloning repository git@bitbucket.org:my-repo.git
 > /opt/bitnami/git/bin/git init /opt/bitnami/apps/jenkins/jenkins_home/workspace/test-pipeline@script # timeout=10
Fetching upstream changes from git@bitbucket.org:my-repo.git
 > /opt/bitnami/git/bin/git --version # timeout=10
using GIT_SSH to set credentials Temporary git credentials using XXXXX's credentials
 .....
Fetching upstream changes from git@bitbucket.org:my-repo.git
using GIT_SSH to set credentials Temporary git credentials using XXXXXX's credentials
Checking out Revision b139fca90bb7b66ebb7432fc791bf0b77ef73fbb (refs/remotes/origin/some_branch)
Commit message: "Blah blah blah"
Running in Durability level: MAX_SURVIVABILITY
[Pipeline] Start of Pipeline
[Pipeline] node
Running on ubuntu-1604-agent-d1h0ha in /tmp/workspace/test-pipeline
[Pipeline] {
[Pipeline] stage
[Pipeline] { (Declarative: Checkout SCM)
[Pipeline] checkout
using credential XXXXXX
Cloning the remote Git repository
ERROR: Error cloning remote repo 'origin'
hudson.plugins.git.GitException: Could not init /tmp/workspace/test-pipeline
    .....
    Suppressed: hudson.remoting.Channel$CallSiteStackTrace: Remote call to ubuntu-1604-agent-d1h0ha
        .....
Caused by: hudson.plugins.git.GitException: Error performing git command: /opt/bitnami/git/bin/git init /tmp/workspace/test-pipeline
    .....
Caused by: java.io.IOException: Cannot run program "/opt/bitnami/git/bin/git" (in directory "/tmp/workspace/test-pipeline"): error=2, No such file or directory
    .....
Caused by: java.io.IOException: error=2, No such file or directory
    .....

我尝试了几种修复方法：

1. 将作业中的Git executable设置为git-agent。之所以失败，是因为master上不存在git路径。
2. 我想到的所有组合都包括检查/取消选中Lightweight checkout以及从Jenkinsfile中删除/添加checkout scm。
3. 我无法执行this之类的操作，因为我的节点是动态的。

是否可以为主/代理定义不同的git路径？还是有办法让其中只有一个执行任何git操作？我认为通过取消选中Lightweight checkout会迫使master进行所有Git操作，相反，我认为在Jenkinsfile中调用checkout scm会迫使Agent进行所有git操作，但似乎都不是