72
Edit /etc/fstab
Add below command
user1@server_ip:/remote/path /mnt/local/path fuse.sshfs identityfile=/ssh/key/file/id_rsa,reconnect,ServerAliveInterval=30,allow_other,x-systemd.automount 0 0
Save the file
Execute mount -a to test it
If everything goes fine, then reboot the system to have final test