1. login remote server without password
ssh-copy-id name@server.com
2.generate ssh key on server
ssh-keygen - t rsa
3. copy the server ssh key to the git deploy key
4. add gitlab to the know host
ssh-keyscan -t rsa gitlab.com >> ~/.ssh/known_hosts
原文：https://www.cnblogs.com/ybleeho/p/9941971.html