一尘不染

Jenkins ssh-agent启动,然后在管道构建中立即停止

jenkins

我有一个简单的jenkins管道构建,这是我的jenkinsfile:

pipeline {
    agent any
    stages {
        stage('deploy-staging') {
            when {
                branch 'staging'
            }
            steps {
                sshagent(['my-credentials-id']) {
                    sh('git push joe@repo:project')
                }
            }
        }
    }
}

我正在使用sshagent推送到远程服务器上的git repo。我已经创建了指向Jenkins主〜/ .ssh中的私钥文件的凭据。

运行构建时,得到以下输出(我用*替换了一些敏感信息):

[ssh-agent] Using credentials *** (***@*** ssh key)
[ssh-agent] Looking for ssh-agent implementation...
[ssh-agent]   Exec ssh-agent (binary ssh-agent on a remote machine)
$ ssh-agent
SSH_AUTH_SOCK=/tmp/ssh-cjbm7oVQaJYk/agent.11558
SSH_AGENT_PID=11560
$ ssh-add ***
Identity added: ***
[ssh-agent] Started.
[Pipeline] {
[Pipeline] sh
$ ssh-agent -k
unset SSH_AUTH_SOCK;
unset SSH_AGENT_PID;
echo Agent pid 11560 killed;
[ssh-agent] Stopped.
[TDBNSSBFW6JYM3BW6AAVMUV4GVSRLNALY7TWHH6LCUAVI7J3NHJQ] Running shell script
+ git push joe@repo:project
Host key verification failed.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

如您所见,ssh-agent启动,之后立即停止,然后运行git push命令。奇怪的是,它曾经正确地工作过一次,但这似乎是完全随机的。

我对詹金斯还是很陌生-我缺少明显的东西吗?任何帮助表示赞赏,谢谢。

编辑:如果有帮助,我正在运行多分支管道。


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2020-07-25

共1个答案

一尘不染

我最近有一个类似的问题,尽管它在docker容器中。日志给人的印象是ssh-agent退出得太早,但是实际上问题是我忘记了将git服务器添加到已知主机。

我建议将ssh-ing到您的jenkins master上,并尝试执行与ssh-agent(cli)管道相同的步骤。然后,您将看到问题出在哪里。

例如:

eval $(ssh-agent -s)
ssh-add ~/yourKey
git clone

在help.github.com上解释的

更新:这里是一个用于添加knownHosts(如果尚未添加)的实用程序:

/**
 * Add hostUrl to knownhosts on the system (or container) if necessary so that ssh commands will go through even if the certificate was not previously seen.
 * @param hostUrl
 */
void tryAddKnownHost(String hostUrl){
    // ssh-keygen -F ${hostUrl} will fail (in bash that means status code != 0) if ${hostUrl} is not yet a known host
    def statusCode = sh script:"ssh-keygen -F ${hostUrl}", returnStatus:true
    if(statusCode != 0){
        sh "mkdir -p ~/.ssh"
        sh "ssh-keyscan ${hostUrl} >> ~/.ssh/known_hosts"
    }
}
2020-07-25