[Unit]
Description=OpenSSH Key Generation
ConditionPathExists=|!/etc/ssh/ssh_host_rsa_key
ConditionPathExists=|!/etc/ssh/ssh_host_dsa_key
ConditionPathExists=|!/etc/ssh/ssh_host_ecdsa_key
ConditionPathExists=|!/etc/ssh/ssh_host_ed25519_key

[Service]
ExecStart=@BINDIR@/ssh-keygen -A
Type=oneshot
RemainAfterExit=yes