Jenkinsfile推送git标签失败

Question

我正在尝试在jenkins管道（Jenkinsfile）的成功块中添加git push标签

post {
    failure {
        ...
    }
    success {
        script {
             sshagent (credentials: ['jenkins']) {
                sh """
                   if ${BUILD} ; then
                       git config user.name 'Jenkins'
                       git config user.email '########@users.noreply.github.com'
                       git tag -a twist_v${BUILD_VERSION}_#${BUILD_NUMBER} -m ${JENKINS_TAG_MESSAGE}
                       git push --tags
                   fi
                """
             }
        }
    }
    cleanup {
        cleanWs()
    }
}

但是出现以下错误：

$ ssh-agent
 SSH_AUTH_SOCK=/tmp/ssh-axSxDPfiJVd4/agent.28367
 SSH_AGENT_PID=28369
 Running ssh-add (command line suppressed)
 Identity added: /home/jenkins/jenkins_slave/workspace/Firmware@tmp/private_key_6077107140528635470.key (/home/jenkins/jenkins_slave/workspace/Firmware@tmp/private_key_6077107140528635470.key)
 [ssh-agent] Started.
 [Pipeline] {
 [Pipeline] sh
 + true
 + true
 + git config user.name Jenkins
 + git config user.email ########@users.noreply.github.com
 + git tag -a twist_v1.1.1_328 -m By Jenkins
 + git push --tags
 fatal: could not read Username for 'https://github.com': No such device or address
 [Pipeline] }
 $ ssh-agent -k
 unset SSH_AUTH_SOCK;
 unset SSH_AGENT_PID;
 echo Agent pid 28369 killed;
 [ssh-agent] Stopped.
 [Pipeline] // sshagent

此jenkins-slave在Ubuntu上运行。