centos 安装 jenkins 2.452.1最新版本

# centos 安装 jenkins 2.452.1最新版本

## 安装java11
~~~
yum install java-11-openjdk-devel -y
~~~

## 添加Jenkins的官方仓库

~~~
wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo
rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key
~~~

## 安装jenkins

```
yum install jenkins
```
## 启动Jenkins服务并设置开机自启

```
systemctl start jenkins
systemctl enable jenkins
```

访问 http://your_centos_ip:8080 按提示进行安装

# 如果要安装老版本参照以下方案：

> 因jenkins从2.357版本开始不再支持java8
jenkins与java版本对应查看，与jenkins下载：Redhat Jenkins Packages
打算使用java8，所以选择安装2.346.3-1.1
安装jenkins之前，安装好java8并配置好环境变量。

## 卸载
~~~
rpm -e jenkins
#彻底删除jenkins残留文件
find / -iname jenkins | xargs -n 1000 rm -rf
~~~

## 安装java8

~~~
yum install java-1.8.0-openjdk
~~~

## 创建三个文件夹
不然安装的时候会报下面的错误。
~~~
stat: cannot stat ‘/var/cache/jenkins’: No such file or directory
stat: cannot stat ‘/var/log/jenkins’: No such file or directory
stat: cannot stat ‘/var/lib/jenkins’: No such file or directory
~~~

## rpm方式安装：

~~~
wget https://get.jenkins.io/redhat-stable/jenkins-2.346.3-1.1.noarch.rpm --no-check-certificate

yum install -y jenkins-2.346.3-1.1.noarch.rpm
或
rpm -ivh jenkins-2.346.3-1.1.noarch.rpm

~~~

## 修改Jenkins配置

~~~
vi /etc/sysconfig/jenkins
~~~

## 修改如下配置：
~~~
JENKINS_USER="root"
JENKINS_PORT="8888"
~~~

修改时区：
~~~
JENKINS_JAVA_OPTIONS="-Djava.awt.headless=true -Dorg.apache.commons.jelly.tags.fmt.timeZone=Asia/Shanghai"
~~~

## 设置开机自启
~~~
systemctl enable jenkins
~~~

其他命令：
~~~
systemctl start jenkins  # 启动
systemctl stop jenkins # 停止
systemctl restart jenkins # 重启

service jenkins start # 启动 
service jenkins stop # 停止
service jenkins restart # 重启

~~~

## 查看密码
~~~
cat /var/lib/jenkins/secrets/initialAdminPassword
~~~