[Unit] Description=SSH Key Generation ConditionPathExists=|!/etc/ssh/ssh_host_key ConditionPathExists=|!/etc/ssh/ssh_host_key.pub ConditionPathExists=|!/etc/ssh/ssh_host_rsa_key ConditionPathExists=|!/etc/ssh/ssh_host_rsa_key.pub ConditionPathExists=|!/etc/ssh/ssh_host_dsa_key ConditionPathExists=|!/etc/ssh/ssh_host_dsa_key.pub ConditionPathExists=|!/etc/ssh/ssh_host_ecdsa_key ConditionPathExists=|!/etc/ssh/ssh_host_ecdsa_key.pub ConditionPathExists=|!/etc/ssh/ssh_host_ed25519_key ConditionPathExists=|!/etc/ssh/ssh_host_ed25519_key.pub [Service] ExecStart=/usr/bin/ssh-keygen -A Type=oneshot RemainAfterExit=yes