// 获取repo
wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo
// 安装repo
rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key
// 安装Jenkins
yum install jenkins
// 修改Jenkins port
vim /etc/sysconfig/jenkins
// 修改JENKINS_PORT,默认是8080
JENKINS_PORT=8088
// 防火墙开端口
firewall-cmd --zone=public --add-port=8088/tcp --permanent
firewall-cmd --reload
// 修改JDK path
vim /etc/rc.d/init.d/jenkins
// candidates项
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
"