1、修改配置文件

# 编辑配置文件
vim /etc/sysconfig/jenkins
# 修改$JENKINS_USER
$JENKINS_USER="root"

2、修改相关文件夹为root权限

chown -R root:root /var/lib/jenkins
chown -R root:root /var/cache/jenkins
chown -R root:root /var/log/jenkins

3、重启jenkins

systemctl restart jenkins