Create a container

$ lxc launch ubuntu:22.04 fileserver

Remote Server : files_server

# create a directory for store files
$ sudo mkdir /opt/remote_localfiles
# change owner
$ sudo chown -R ubuntu:ubuntu /opt/remote_localfiles
# change directory permission
$ chmod o+w /opt/remote_localfiles

Local Server :

Install sshfs package

$ sudo apt install sshfs

# create keys for use by SSH
$ ssh-keygen

# copied your SSH key to the remote system
$ ssh-copy-id -i /home/ubuntu/.ssh/id_rsa.pub ubuntu@remote_server

# create a directory for mount point
$ mkdir /var/www/../runtime/uploads/localfiles

# change mount directory permission
$ chmod o+w /var/www/../runtime/uploads/localfiles

Mount a remote directory

$ sshfs -o allow_other,default_permissions ubuntu@remote_server:/opt/remote_localfiles/ /var/www/../runtime/uploads/localfiles

Permanently Mounting the Remote Filesystem

edit /etc/fstab:

ubuntu@remote_server:/opt/remote_localfiles  /var/www/../runtime/uploads/localfiles fuse.sshfs identityfile=/home/ubuntu/.ssh/id_rsa,allow_other,_netdev 0 0

Validate fstab without rebooting

# -a Mount all filesystems (of the given types) mentioned in fstab.
$ mount -a

Show result

$ df -h
Filesystem                               Size  Used Avail Use% Mounted on
..
tmpfs                                    100K     0  100K   0% /dev/lxd
tmpfs                                    100K     0  100K   0% /dev/.lxd-mounts
tmpfs                                     32G     0   32G   0% /dev/shm
..
snapfuse                                  54M   54M     0 100% /snap/snapd/19122
ubuntu@remote_server:/opt/remote_localfiles  371G  199G  172G  54% /var/www/../runtime/uploads/localfiles
tmpfs                                    6.3G     0  6.3G   0% /run/user/1000

Error

• option allow_other

   fusermount: option allow_other only allowed if 'user_allow_other' is set in /etc/fuse.conf
  

  edit /etc/fuse.conf uncomment line user_allow_other

• no write access

  fusermount: user has no write access to mountpoint ...
  

  check mount directory permission

Solution

Reference

• Digitalocean
• Adamtheautomator