[Unit]
Description=Setup a secure tunnel to %I
After=network.target

[Service]
Environment="AUTOSSH_GATETIME=0"
EnvironmentFile=/etc/default/secure-tunnel@%i
ExecStart=/usr/bin/autossh -M 0 -o "ServerAliveInterval 30" -o "ServerAliveCountMax 3" -NR ${REMOTE_PORT}:localhost:22 ${USER}@${TARGET}
User=autossh

[Install]
WantedBy=multi-user.target