[Samba] CTDB DBDIR Options? Errors

[Martin Schwenke]

Hi Bob,

[CC: Amitay, who is better at SeLinux]

On Wed, 4 Nov 2020 09:33:10 -0500, Robert Buck via samba
<samba at lists.samba.org> wrote:

> This turns out to be an SELinux issue. Does anyone know the proper commands
> to restorecon or otherwise to set the SELinux policy for
> persistent/volatile database files moved to a different directory?

I'm not sure if you're asking a question generic enough for these
answers...

The security contexts in question probably depend on the
distribution.

If you run

  ls -Z <olddir>

where <olddir> is the default location for the given database
directory, then you'll find out the context and can use

  chcon <context> <newdir>

to set it.

You also should just be able to do

  chcon --reference=<olddir> <newdir>

I hope that's not too generic...  :-)

peace & happiness,
martin

> On Wed, Nov 4, 2020 at 9:02 AM Robert Buck <robert.buck at som.com> wrote:
> 
> > Running into problems configuring different locations for the volatile and
> > other database directories. Can someone provide a quick sanity check on
> > what I'm doing below? Thank you.
> >
> > Given
> >
> > [database]
> >
> >    volatile database directory = /var/cache/dbdir/volatile
> >
> >    persistent database directory = /var/cache/dbdir/persistent
> >
> >    state database directory = /var/cache/dbdir/state
> >
> > And given,
> >
> > [root at use1-samba-server-c25-use1-01 ec2-user]# ls -al /var/cache/dbdir/
> >
> > total 32
> >
> > drwxr-xr-x.  6 root root  4096 Nov  4 13:30 .
> >
> > drwxr-xr-x. 12 root root   145 Nov  4 13:16 ..
> >
> > drwx------.  2 root root 16384 Nov  4 13:16 lost+found
> >
> > drwxr-xr-x.  2 root root  4096 Nov  4 13:30 persistent
> >
> > drwxr-xr-x.  2 root root  4096 Nov  4 13:30 state
> >
> > drwxr-xr-x.  2 root root  4096 Nov  4 13:30 volatile
> >
> > Why would we get,
> >
> > Nov 04 13:58:49 use1-samba-server-c25-use1-01 ctdbd_wrapper[6558]:
> > volatile database directory "/var/cache/dbdir/volatile" does not exist
> >
> > Nov 04 13:58:49 use1-samba-server-c25-use1-01 ctdbd_wrapper[6558]: conf:
> > validation for option "volatile database directory" failed
> >
> > Nov 04 13:58:49 use1-samba-server-c25-use1-01 ctdbd_wrapper[6558]:
> > persistent database directory "/var/cache/dbdir/persistent" does not exist
> >
> > Nov 04 13:58:49 use1-samba-server-c25-use1-01 ctdbd_wrapper[6558]: conf:
> > validation for option "persistent database directory" failed
> >
> > Nov 04 13:58:49 use1-samba-server-c25-use1-01 ctdbd_wrapper[6558]: state
> > database directory "/var/cache/dbdir/state" does not exist
> >
> > Nov 04 13:58:49 use1-samba-server-c25-use1-01 ctdbd_wrapper[6558]: conf:
> > validation for option "state database directory" failed
> >
> > Nov 04 13:58:49 use1-samba-server-c25-use1-01 ctdbd_wrapper[6558]: Failed
> > to load configuration file /etc/ctdb/ctdb.conf