sshfs 是基于fuse 开发的可以像使用本地系统一样，通过ssh 协议访问远端服务器文件，有好多方便的用途

• 数据同步
• 数据加密访问
• 做为共享数据卷（基于给容器使用）

安装

yum install -y fuse-sshfs

支持的参数

sshfs --help

usage: sshfs [user@]host:[dir] mountpoint [options]

general options:

    -o opt,[opt...] mount options

    -h --help print help

    -V --version print version

​

SSHFS options:

    -p PORT equivalent to '-o port=PORT'

    -C equivalent to '-o compression=yes'

    -F ssh_configfile specifies alternative ssh configuration file

    -1 equivalent to '-o ssh_protocol=1'

    -o reconnect reconnect to server

    -o delay_connect delay connection to server

    -o sshfs_sync synchronous writes

    -o no_readahead synchronous reads (no speculative readahead)

    -o sync_readdir synchronous readdir

    -o sshfs_debug print some debugging information

    -o cache=BOOL enable caching {yes,no} (default: yes)

    -o cache_max_size=N sets the maximum size of the cache (default: 10000)

    -o cache_timeout=N sets timeout for caches in seconds (default: 20)

    -o cache_X_timeout=N sets timeout for {stat,dir,link} cache

    -o cache_clean_interval=N

                           sets the interval for automatic cleaning of the

                           cache (default: 60)

    -o cache_min_clean_interval=N

                           sets the interval for forced cleaning of the

                           cache if full (default: 5)

    -o workaround=LIST colon separated list of workarounds

             none no workarounds enabled

             [no]rename fix renaming to existing file (default: off)

             [no]truncate fix truncate for old servers (default: off)

             [no]buflimit fix buffer fillup bug in server (default: on)

             [no]fstat fix fstat for old servers (default: off)

    -o idmap=TYPE user/group ID mapping (default: none)

             none no translation of the ID space

             user only translate UID/GID of connecting user

             file translate UIDs/GIDs contained in uidfile/gidfile

    -o uidfile=FILE file containing username:remote_uid mappings

    -o gidfile=FILE file containing groupname:remote_gid mappings

    -o nomap=TYPE with idmap=file, how to handle missing mappings

             ignore don't do any re-mapping

             error return an error (default)

    -o ssh_command=CMD execute CMD instead of 'ssh'

    -o ssh_protocol=N ssh protocol to use (default: 2)

    -o sftp_server=SERV path to sftp server or subsystem (default: sftp)

    -o directport=PORT directly connect to PORT bypassing ssh

    -o slave communicate over stdin and stdout bypassing network

    -o disable_hardlink link(2) will return with errno set to ENOSYS

    -o transform_symlinks transform absolute symlinks to relative

    -o follow_symlinks follow symlinks on the server

    -o no_check_root don't check for existence of 'dir' on server

    -o password_stdin read password from stdin (only for pam_mount!)

    -o SSHOPT=VAL ssh options (see man ssh_config)

​

FUSE options:

    -d -o debug enable debug output (implies -f)

    -f foreground operation

    -s disable multi-threaded operation

​

    -o allow_other allow access to other users

    -o allow_root allow access to root

    -o auto_unmount auto unmount on process termination

    -o nonempty allow mounts over non-empty file/dir

    -o default_permissions enable permission checking by kernel

    -o fsname=NAME set filesystem name

    -o subtype=NAME set filesystem type

    -o large_read issue large read requests (2.4 only)

    -o max_read=N set maximum size of read requests

​

    -o hard_remove immediate removal (don't hide files)

    -o use_ino let filesystem set inode numbers

    -o readdir_ino try to fill in d_ino in readdir

    -o direct_io use direct I/O

    -o kernel_cache cache files in kernel

    -o [no]auto_cache enable caching based on modification times (off)

    -o umask=M set file permissions (octal)

    -o uid=N set file owner

    -o gid=N set file group

    -o entry_timeout=T cache timeout for names (1.0s)

    -o negative_timeout=T cache timeout for deleted names (0.0s)

    -o attr_timeout=T cache timeout for attributes (1.0s)

    -o ac_attr_timeout=T auto cache timeout for attributes (attr_timeout)

    -o noforget never forget cached inodes

    -o remember=T remember cached inodes for T seconds (0s)

    -o intr allow requests to be interrupted

    -o intr_signal=NUM signal to send on interrupt (10)

    -o modules=M1[:M2...] names of modules to push onto filesystem stack

​

    -o max_write=N set maximum size of write requests

    -o max_readahead=N set maximum readahead

    -o max_background=N set number of maximum background requests

    -o congestion_threshold=N set kernel's congestion threshold

    -o async_read perform reads asynchronously (default)

    -o sync_read perform reads synchronously

    -o atomic_o_trunc enable atomic open+truncate support

    -o big_writes enable larger than 4kB writes

    -o no_remote_lock disable remote file locking

    -o no_remote_flock disable remote file locking (BSD)

    -o no_remote_posix_lock disable remove file locking (POSIX)

    -o [no_]splice_write use splice to write to the fuse device

    -o [no_]splice_move move data while splicing to the fuse device

    -o [no_]splice_read use splice to read from the fuse device

​

Module options:

​

[iconv]

    -o from_code=CHARSET original encoding of file names (default: UTF-8)

    -o to_code=CHARSET  new encoding of the file names (default: UTF-8)

​

[subdir]

    -o subdir=DIR   prepend this directory to all paths (mandatory)

    -o [no]rellinks transform absolute symlinks to relative

 

使用

• 创建挂载点
  mkdir -p /opt/ssh
• 挂载远端服务器
  sshfs root@remoteserver:/opt/ /opt/ssh/ 按照提示操作即可
• 查看挂载目录
  

说明

类似基于fuse 开发的文件系统还是比较多的，对于我们实际中的开发还是挺方便的

参考资料

https://github.com/libfuse/sshfs