1、下载jenkins rpm 安装包
https://mirrors.tuna.tsinghua.edu.cn/jenkins/redhat-stable/
2、rpm -Uvh jenkins-2.289.3-1.1.noarch.rpm
3、安装jdk 1.8 以上版本
解压jdk-8u221-linux-x64.tar.gz 到/usr/local/下
4、修改jenkins 配置
vim /etc/sysconfig/jenkins
#修改配置
$JENKINS_USER=“root”
修改目录权限
chown -R root:root /var/lib/jenkins
chown -R root:root /var/cache/jenkins
chown -R root:root /var/log/jenkins
vim /etc/init.d/jenkins
#candidates="
#/etc/alternatives/java
#/usr/lib/jvm/java-1.8.0/bin/java
#/usr/lib/jvm/jre-1.8.0/bin/java
#/usr/lib/jvm/java-1.7.0/bin/java
#/usr/lib/jvm/jre-1.7.0/bin/java
#/usr/bin/java
#"
candidates="
/usr/local/jdk1.8.0_221/bin/java
/usr/local/jdk1.8.0_221/jre/bin/java
"
service jenkins start
插件路径：/var/lib/jenkins/plugins 可离线安装
可以在线安装插件之后复制plugins 到离线环境的plugins
也可以下载插件安装：
下载地址：http://mirrors.aliyun.com/jenkins/plugins/
