[lxc-users] Ownership changes after container move

[Serge Hallyn]

Yeah, rsync isn't using --numeric-ids in lxd.  I will post a PR to
fix it in a few minutes.  Thanks for pointing this out!

Quoting Jamie Brown (Jamie.Brown at mpec.co.uk):
> # lxc exec test -- ls -lAn /home/jamie
> total 16
> -rw-r--r-- 1 1000 1001  220 Nov 10 15:19 .bash_logout
> -rw-r--r-- 1 1000 1001 3637 Nov 10 15:19 .bashrc
> -rw-r--r-- 1 1000 1001  675 Nov 10 15:19 .profile
> drwx------ 2 1000 1001 4096 Nov 10 15:20 .ssh
> 
> 
> 
> # lxc stop test
> # lxc move local-server:test remote-server:test
> 
> # lxc start remote-server:test
> # lxc exec remote-server:test -- ls -lAn /home/jamie
> total 16
> -rw-r--r-- 1 1001 1002  220 Nov 10 15:19 .bash_logout
> -rw-r--r-- 1 1001 1002 3637 Nov 10 15:19 .bashrc
> -rw-r--r-- 1 1001 1002  675 Nov 10 15:19 .profile
> drwx------ 2 1001 1002 4096 Nov 10 15:20 .ssh
> 
> 
> It changed in the other direction after repeating too, so not just limited to single direction.
> 
> 
> 
> 
> 
> 
> 
> On 10/11/2015, 15:30, "lxc-users on behalf of Serge Hallyn" <lxc-users-bounces at lists.linuxcontainers.org on behalf of serge.hallyn at ubuntu.com> wrote:
> 
> >Quoting Tycho Andersen (tycho.andersen at canonical.com):
> >> Hi Jamie,
> >> 
> >> On Tue, Nov 10, 2015 at 09:10:22AM +0000, Jamie Brown wrote:
> >> > Hi,
> >> > 
> >> > I’ve discovered that some file ownership changes have occurred after moving stopped containers between hosts.
> >> > 
> >> > Prior to the move there were various user directories (e.g. “/home/jamie”) with ownership set to jamie:jamie. After moving, the ownership was changed to ubuntu:ubuntu.
> >> 
> >> Sounds like a pretty serious bug. Do you happen to know how to
> >> reproduce the problem?
> >
> >Can you, from the hosts, do a ls -ln on one of the offending
> >directories and show the results?  Seems there are 3 possiblities,
> >
> >1. the files are simply chowned to wrong uid altogether
> >2. the files are chowned to the username rather than uid, and jamie's
> >   user/group is different between hosts.  That's a bug in lxd, it
> >   should use the numeric values.  (Probably a missing tar flag)
> >3. the files are chowned (correctly) to the original uid, but
> >   the way you're looking at the files uses a different /etc/{passwd,group}
> >   so the names appear different.
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