1、首先安裝JDK 最低版本8.0
命令：yum -y install java-1.8.0-openjdk-devel
驗證：java -version
2、安裝Jenkins步驟
①添加Jenkins源
1）sudo wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo
2）sudo rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key
②通過yum命令安裝Jenkins
sudo yum -y install jenkins
碰到問題：jenkins-2.222.4-1.1.noarch.rpm FAILED
解決方法： 參考鏈接 https://blog.csdn.net/yudelian/article/details/103878701
一、centos安裝jenkins的rpm安裝包分為yum安裝和rpm安裝已經下載好的jenkins包
jenkins安裝包的下載路徑：jenkins個版本的rpm安裝包，下面主要說明rpm安裝的流程：
1)獲取rpm安裝包的的地址，安裝包：jenkins-2.213-1.1.noarch.rpm，如下在centos獲取安裝包下載命令：
wget https://prodjenkinsreleases.blob.core.windows.net/redhat/jenkins-2.213-1.1.noarch.rpm
2)安裝下載好的rpm包
sudo rpm -ivh jenkins-2.213-1.1.noarch.rpm
③配置jenkins的端口，設置為:8085
④啟動jenkins服務
sudo service jenkins start
3、配置jenkins服務
1) 在瀏覽器訪問jenkins頁面
http://localhost:8085/
2)根據頁面提示位置/var/lib/jenkins/secrets/initialAdminPassword，獲取初始密碼
命令：cat /var/lib/jenkins/secrets/initialAdminPassword
