声明：本文在参考以下文章的基础上实践而来，如有侵权，请留言告知。
https://blog.csdn.net/wzqnls/article/details/78506149
https://blog.csdn.net/wzqnls/article/details/78506149
1. 首先安装好Java环境
# java -version
openjdk version "1.8.0_171"
OpenJDK Runtime Environment (build 1.8.0_171-b10)
OpenJDK 64-Bit Server VM (build 25.171-b10, mixed mode)
2. 获取jenkins安装源文件
wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins-ci.org/redhat/jenkins.repo
结果如下：
--2018-07-20 15:36:23-- http://pkg.jenkins-ci.org/redhat/jenkins.repo
Resolving pkg.jenkins-ci.org (pkg.jenkins-ci.org)... 52.202.51.185
Connecting to pkg.jenkins-ci.org (pkg.jenkins-ci.org)|52.202.51.185|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 71
Saving to: ‘/etc/yum.repos.d/jenkins.repo’
100%[=====================================================================================================================================================================>] 71 --.-K/s in 0s
2018-07-20 15:36:25 (11.3 MB/s) - ‘/etc/yum.repos.d/jenkins.repo’ saved [71/71]
3. 导入公钥
rpm --import https://jenkins-ci.org/redhat/jenkins-ci.org.key
4. 安装Jenkins
yum install -y jenkins
base | 3.6 kB 00:00:00
epel | 3.2 kB 00:00:00
extras | 3.4 kB 00:00:00
jenkins | 2.9 kB 00:00:00
updates | 3.4 kB 00:00:00
(1/5): extras/7/x86_64/primary_db | 172 kB 00:00:00
(2/5): epel/x86_64/updateinfo | 928 kB 00:00:00
(3/5): epel/x86_64/primary | 3.5 MB 00:00:00
(4/5): updates/7/x86_64/primary_db | 4.2 MB 00:00:00
(5/5): jenkins/primary_db | 112 kB 00:00:01
epel 12614/12614
Resolving Dependencies
--> Running transaction check
---> Package jenkins.noarch 0:2.133-1.1 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
===============================================================================================================================================================================================================
Package Arch Version Repository Size
===============================================================================================================================================================================================================
Installing:
jenkins noarch 2.133-1.1 jenkins 72 M
Transaction Summary
===============================================================================================================================================================================================================
Install 1 Package
Total download size: 72 M
Installed size: 72 M
Downloading packages:
jenkins-2.133-1.1.noarch.rpm | 72 MB 00:20:20
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : jenkins-2.133-1.1.noarch 1/1
Verifying : jenkins-2.133-1.1.noarch 1/1
Installed:
jenkins.noarch 0:2.133-1.1
Complete!
5. 配置文件修改
vi /etc/sysconfig/jenkins
修改如下内容：
JENKINS_PORT="8787"
6. 日志信息查看
/var/libs/jenkins/logs
/var/log/jenkins/jenkins.log
7. 启动: http://{IP地址}:8787
service jenkins start
8. 以root用户运行jenkins中shell命令
8.1 修改Jenkins配置文件
#打开配置文件
vim /etc/sysconfig/jenkins
#修改$JENKINS_USER，并去掉当前行注释
$JENKINS_USER="root"
8.2 修改Jenkins相关文件夹用户权限
chown -R root:root /var/lib/jenkins
chown -R root:root /var/cache/jenkins
chown -R root:root /var/log/jenkins
8.3 重启Jenkins服务并检查运行Jenkins的用户是否已经切换为root
# 重启Jenkins（若是其他方式安装的jenkins则重启方式略不同）
service jenkins restart
# 查看Jenkins进程所属用户
ps -ef | grep jenkins
# 若显示为root用户，则表示修改完成
