ssh-agent.service

[ocehb]

# cat ssh-agent.service
[Unit]
Description=OpenSSH private key agent
Wants=environment.target
Before=environment.target
IgnoreOnIsolate=true

[Service]
Type=forking
Environment=SSH_AUTH_SOCK=%t/ssh-agent.socket
#PIDFile=%t/ssh-agent.pid
ExecStart=/usr/bin/ssh-agent -a $SSH_AUTH_SOCK
ExecStartPost=/usr/bin/systemctl --user set-environment SSH_AUTH_SOCK=${SSH_AUTH_SOCK}
ExecStartPost=/usr/bin/systemctl --user set-environment SSH_AGENT_PID=${MAINPID}
ExecStartPost=/bin/sh -c "echo ${MAINPID} > %t/ssh-agent.pid"
#ExecStop=/usr/bin/ssh-agent -k
ExecStopPost=/bin/rm -f ${SSH_AUTH_SOCK} %t/ssh-agent.pid
ExecStopPost=/usr/bin/systemctl --user unset-environment SSH_AUTH_SOCK
ExecStopPost=/usr/bin/systemctl --user unset-environment SSH_AGENT_PID

[Install]
WantedBy=default.target
# install -D -Z -m644 -oroot -groot ssh-agent.service /etc/systemd/user/ssh-agent.service
# systemctl daemon-reload
# systemctl --user enable ssh-agent
# systemctl --user start ssh-agent
# ssh-add
...
# systemctl --user status ssh-agent
* ssh-agent.service - OpenSSH private key agent
   Loaded: loaded (/etc/systemd/user/ssh-agent.service; enabled; vendor preset: enabled)
   Active: active (running) since Fri 2016-11-04 09:34:05 EET; 13min ago
  Process: 2524 ExecStartPost=/bin/sh -c echo ${MAINPID} > %t/ssh-agent.pid (code=exited, status=0/SUCCESS)
  Process: 2522 ExecStartPost=/usr/bin/systemctl --user set-environment SSH_AGENT_PID=${MAINPID} (code=exited,
  Process: 2520 ExecStartPost=/usr/bin/systemctl --user set-environment SSH_AUTH_SOCK=${SSH_AUTH_SOCK} (code=e
  Process: 2518 ExecStart=/usr/bin/ssh-agent -a $SSH_AUTH_SOCK (code=exited, status=0/SUCCESS)
 Main PID: 2519 (ssh-agent)
   CGroup: /user.slice/user-1000.slice/user@1000.service/ssh-agent.service
           `-2519 /usr/bin/ssh-agent -a /run/user/1000/ssh-agent.socket

Nov 04 09:34:05 vbox3.test.net systemd[1530]: Starting OpenSSH private key agent...
Nov 04 09:34:05 vbox3.test.net systemd[1530]: Started OpenSSH private key agent.