jenkins依賴JAVA 先安裝JDK
安裝jenkins
##關閉防火牆
$ iptables -F
$ iptables -X
$ systemctl stop firewalld
$ systemctl disable firewalld
###安裝yum源
$ wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
$ wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
$ yum clean all && yum makecache
$ wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat/jenkins.repo
$ rpm --import https://pkg.jenkins.io/redhat/jenkins.io.key
$ yum install jenkins -y
$ systemctl start jenkins
(1)/usr/lib/jenkins/：jenkins安裝目錄，war包會放在這裏。
(2)/etc/sysconfig/jenkins：jenkins配置文件，“端口”，“JENKINS_HOME”等都可以在這裏配置。
(3)/var/lib/jenkins/：默認的JENKINS_HOME。
(4)/var/log/jenkins/jenkins.log：jenkins日誌文件。
http://IP:8080 web訪問 默認密碼admin
卸載方法
#yum remove jenkins