为公司生成一对秘钥ssh key
ssh-keygen -t rsa -C 'yourEmail@xx.com' -f ~/.ssh/gitlab-rsa
vim ~/.ssh/config，输入下面的内容：
Host github.com
~/.ssh/id_rsa
Host 192.168.253.134
HostName 192.168.253.134
PORT 8090
~/.ssh/gitlab-rsa
然后做一次提交
cd devops
touch README.md
git add README.md
git commit -m "add README"
git push origin master
