zfs/tests/runfiles
Will Andrews 4ed5e25074 Add Linux namespace delegation support
This allows ZFS datasets to be delegated to a user/mount namespace
Within that namespace, only the delegated datasets are visible
Works very similarly to Zones/Jailes on other ZFS OSes

As a user:
```
 $ unshare -Um
 $ zfs list
no datasets available
 $ echo $$
1234
```

As root:
```
 # zfs list
NAME                            ZONED  MOUNTPOINT
containers                      off    /containers
containers/host                 off    /containers/host
containers/host/child           off    /containers/host/child
containers/host/child/gchild    off    /containers/host/child/gchild
containers/unpriv               on     /unpriv
containers/unpriv/child         on     /unpriv/child
containers/unpriv/child/gchild  on     /unpriv/child/gchild

 # zfs zone /proc/1234/ns/user containers/unpriv
```

Back to the user namespace:
```
 $ zfs list
NAME                             USED  AVAIL     REFER  MOUNTPOINT
containers                       129M  47.8G       24K  /containers
containers/unpriv                128M  47.8G       24K  /unpriv
containers/unpriv/child          128M  47.8G      128M  /unpriv/child
```

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Will Andrews <will.andrews@klarasystems.com>
Signed-off-by: Allan Jude <allan@klarasystems.com>
Signed-off-by: Mateusz Piotrowski <mateusz.piotrowski@klarasystems.com>
Co-authored-by: Allan Jude <allan@klarasystems.com>
Co-authored-by: Mateusz Piotrowski <mateusz.piotrowski@klarasystems.com>
Sponsored-by: Buddy <https://buddy.works>
Closes #12263
2022-06-10 09:51:46 -07:00
..
common.run zvol: Support blk-mq for better performance 2022-06-09 08:10:38 -06:00
freebsd.run Expose additional file level attributes 2022-03-07 17:52:03 -08:00
linux.run Add Linux namespace delegation support 2022-06-10 09:51:46 -07:00
longevity.run OpenZFS 9166 - zfs storage pool checkpoint 2018-06-26 10:07:42 -07:00
perf-regression.run OpenZFS 9184 - Add ZFS performance test for fixed blocksize random read/write IO 2018-07-02 13:46:06 -07:00
sanity.run Adding ZTS test for O_APPEND 2022-05-11 08:38:16 -07:00
sunos.run ZTS: Add a failsafe callback to run after each test 2020-03-10 11:00:56 -07:00