Jenkins 2.3版本修改运行用户

以往版本的Jenkins都是在/etc/sysconfig/jenkins 修改运行用户，最新升级到2.3版本修改后不生效了。

最后修改/usr/lib/systemd/system/jenkins.service服务文件中的运行用户和组生效。

 cat /usr/lib/systemd/system/jenkins.service |grep -Ev "^#|^$"
[Unit]
Description=Jenkins Continuous Integration Server
Requires=network.target
After=network.target
[Service]
Type=notify
NotifyAccess=main
ExecStart=/usr/bin/jenkins
Restart=on-failure
SuccessExitStatus=143
User=root
Group=root
Environment="JENKINS_HOME=/var/lib/jenkins"
WorkingDirectory=/var/lib/jenkins
Environment="JENKINS_WEBROOT=%C/jenkins/war"
Environment="JAVA_OPTS=-Djava.awt.headless=true"
Environment="JENKINS_PORT=8080"
[Install]
WantedBy=multi-user.target