systemd/user/ssh-agent.service

   1 [Unit]
   2 Description=SSH key agent
   3
   4 [Service]
   5 PassEnvironment=SSH_AUTH_SOCK
   6 ExecStart=/usr/bin/ssh-agent -a $SSH_AUTH_SOCK -t 1h
   7
   8 [Install]
   9 WantedBy=default.target