1 安装docker

# 安装docker
$ sudo yum install -y docker# 启动docker daemon
$ sudo systemctl start docker# 用户加入docker组
$ sudo usermod -aG docker username

2 docker安装jenkins

$ docker pull jenkins/jenkins:lts# 安装成功
$ docker images
REPOSITORY           TAG       IMAGE ID       CREATED         SIZE
jenkins/jenkins      lts       0bd9f204ffc3   5 days ago      470MB

3 启动jenkins

$ cd /root
$ mkdir jenkins_home# root启动
$ docker run -d --name jenkins -uroot -p 8080:8080 -v /root/jenkins_home:/var/jenkins_home jenkins/jenkins:lts

4 登录jenkins

http://192.168.1.128:8080/