Which directory do you have ownership of? Keep in mind your local filesystem permissions do not get applied to the remote CephFS mount...
On Wed, Nov 1, 2017 at 11:03 AM Keane Wolter <wolt...@umich.edu> wrote: > I am mounting a directory under /user which I am the owner of with the > permissions of 700. If I remove the uid=100026 option, I have no issues. I > start having issues as soon as the uid restrictions are in place. > > On Wed, Nov 1, 2017 at 1:05 PM, Gregory Farnum <gfar...@redhat.com> wrote: > >> Well, obviously UID 100026 needs to have the normal POSIX permissions to >> write to the /user path, which it probably won't until after you've done >> something as root to make it so... >> >> On Wed, Nov 1, 2017 at 9:57 AM Keane Wolter <wolt...@umich.edu> wrote: >> >>> Acting as UID 100026, I am able to successfully run ceph-fuse and mount >>> the filesystem. However, as soon as I try to write a file as UID 100026, I >>> get permission denied, but I am able to write to disk as root without >>> issue. I am looking for the inverse of this. I want to write changes to >>> disk as UID 100026, but not as root. From what I understood in the email at >>> http://lists.ceph.com/pipermail/ceph-users-ceph.com/2017-February/016173.html, >>> I should be able to do so with the following cephx caps set to "caps: [mds] >>> allow r, allow rw path=/user uid=100026". Am I wrong with this assumption >>> or is there something else at play I am not aware of? >>> >>> Thanks, >>> Keane >>> >>> On Wed, Oct 25, 2017 at 5:52 AM, Gregory Farnum <gfar...@redhat.com> >>> wrote: >>> >>>> >>>> On Mon, Oct 23, 2017 at 5:03 PM Keane Wolter <wolt...@umich.edu> wrote: >>>> >>>>> Hi Gregory, >>>>> >>>>> I did set the cephx caps for the client to: >>>>> >>>>> caps: [mds] allow r, allow rw uid=100026 path=/user, allow rw >>>>> path=/project >>>>> >>>> >>>> So you’ve got three different permission granting clauses here: >>>> 1) allows the client to read anything >>>> 2) allows the client to act as uid 100026 in the path /user >>>> 3) allows the user to do any read or write (as any user) in path >>>> /project >>>> >>>> >>>> caps: [mon] allow r >>>>> caps: [osd] allow rw pool=cephfs_osiris, allow rw pool=cephfs_users >>>>> >>>>> Keane >>>>> >>>>> On Fri, Oct 20, 2017 at 5:35 PM, Gregory Farnum <gfar...@redhat.com> >>>>> wrote: >>>>> >>>>>> What did you actually set the cephx caps to for that client? >>>>>> >>>>>> On Fri, Oct 20, 2017 at 8:01 AM Keane Wolter <wolt...@umich.edu> >>>>>> wrote: >>>>>> >>>>>>> Hello all, >>>>>>> >>>>>>> I am trying to limit what uid/gid a client is allowed to run as >>>>>>> (similar to NFS' root squashing). I have referenced this email, >>>>>>> http://lists.ceph.com/pipermail/ceph-users-ceph.com/2017-February/016173.html, >>>>>>> with no success. After generating the keyring, moving it to a client >>>>>>> machine, and mounting the filesystem with ceph-fuse, I am still able to >>>>>>> create files with the UID and GID of root. >>>>>>> >>>>>>> Is there something I am missing or can do to prevent root from >>>>>>> working with a ceph-fuse mounted filesystem? >>>>>>> >>>>>>> Thanks, >>>>>>> Keane >>>>>>> wolt...@umich.edu >>>>>>> _______________________________________________ >>>>>>> ceph-users mailing list >>>>>>> ceph-users@lists.ceph.com >>>>>>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>>>>>> >>>>>> >>>>> >>> >
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