Deploy Project on project by ssh or No need of password for taking pull all time

1) Login to production serve
2) check ssh public key exist or not check at .ssh file
3) If not then generate it
4) copy the key by command cat keyfilename,  full key get displayed in terminal
5) Add this key in repository
6) take git clone from ssh link on git or bit buket

https://confluence.atlassian.com/bitbucket/set-up-ssh-for-git-728138079.html