#在ubuntu server16.04版本下使用命令即可安装
$ sudo wget -O /usr/local/bin/gitlab-runner https://gitlab-runner-downloads.s3.amazonaws.com/latest/binaries/gitlab-runner-linux-amd64

#接着授予可执行权限
$ sudo chmod +x /usr/local/bin/gitlab-runner

#创建一个gitlab-ci用户
$ sudo useradd --comment 'GitLab Runner' --create-home gitlab-runner --shell /bin/bash

#安装，并作为服务启动
$ sudo gitlab-runner install --user=gitlab-runner --working-directory=/home/gitlab-runner

## 上述不行的话尝试下边方法

ps aux|grep gitlab-runner  #查看当前runner用户

sudo gitlab-runner uninstall  #删除gitlab-runner

gitlab-runner install --working-directory /home/gitlab-runner --user root   #安装并设置--user(例如我想设置为root)

sudo service gitlab-runner restart  #重启gitlab-runner

ps aux|grep gitlab-runner #再次执行会发现--user的用户名已经更换成root了

sudo gitlab-runner register

#非管理员下一定要运行一下
gitlab-runner run