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# POSIX Driver
Standalone Rados Gateway (RGW) on a local POSIX filesystem (Experimental)
## CMake Option
Add below cmake option (enabled by default)
-DWITH_RADOSGW_POSIX=ON
## Build
cd build
ninja [vstart]
## Running Test cluster
Currently, POSIXDriver depends on DBStore for user storage. This will change, eventually, but for now, it's run as a filter on top of DBStore. Not that only users are stored in DBStore, the rest is in the POSIX filesystem.
Edit ceph.conf to add below option
[client]
rgw backend store = dbstore
rgw config store = dbstore
rgw filter = posix
To start the `vstart` cluster, run the following cmd:
MON=0 OSD=0 MDS=0 MGR=0 RGW=1 ../src/vstart.sh -n -d --rgw_store posix
The above vstart command brings up RGW server on POSIXDriver. It creates default zonegroup, zone and few default users (e.g., testid) to be used for s3 operations.
`radosgw-admin` command can be used to create and remove other users, zonegroups and zones.
By default, the directory exported, *'rgw_posix_driver'*, is created in the `dev` subdirectory. This can be changed with the `rgw_posix_base_path` option.
The POSIXDriver keeps a LMDB based cache of directories, so that it can provide ordered listings. This directory lives in `rgw_posix_database_root`, which by default is created in the `dev` subdirectory
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