Re: [arch-general] UID/GID of a systemd container

On Thu, Dec 22, 2016 at 05:52:10PM +0000, arnaud gaboury wrote:

On Thu, Dec 22, 2016, 6:16 PM Leonid Isaev wrote:

...

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% systemctl --version systemd 232 +PAM -AUDIT -SELINUX -IMA -APPARMOR +SMACK -SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN

% uname -r 4.8.13-1-hortensia (username space is set to YES) ------------------------------------------------

My setup: Archlinux host managing through systemd-nspawn a Fedora container on Btrfs.

I don't know what upgrade (kernel, Fedora 24 --> 25, systemd....)

On Thu, Dec 22, 2016 at 09:16:29AM +0000, arnaud gaboury via arch-general wrote: trigered

...

this change, but UID/GID of my container are no more shown as before.

list container directory from host:

# ls -al /var/lib/machines/poppy

dr-xr-xr-x 1 vu-poppy-0 vg-poppy-0 198 Dec 16 17:32 ./ drwx------ 3 root root 4.0K Dec 15 17:08 ../ dr-xr-xr-x 1 vu-poppy-0 vg-poppy-0 0 Feb 3 2016 boot/ drwxrwxr-x 1 vu-poppy-0 vg-poppy-0 62 Aug 26 19:59 db/ drwxr-xr-x 1 vu-poppy-0 vg-poppy-0 8 Apr 27 2015 dev/ drwxr-xr-x 1 vu-poppy-0 vg-poppy-0 4.2K Feb 3 2016 etc/ drwxr-xr-x 1 vu-poppy-0 vg-poppy-0 86 Feb 3 2016 home/

Before it was like this:

# ls -al /var/lib/machines/poppy/

dr-xr-xr-x 1 363397120 363397120 198 Oct 4 15:54 ./ drwx------ 3 root root 4.0K Oct 1 15:53 ../ dr-xr-xr-x 1 363397120 363397120 0 Feb 3 2016 boot/ drwxrwxr-x 1 363397120 363397120 62 Aug 26 19:59 db/ drwxr-xr-x 1 363397120 363397120 8 Apr 27 2015 dev/ drwxr-xr-x 1 363397120 363397120 4.1K Feb 3 2016 etc/ drwxr-xr-x 1 363397120 363397120 76 Feb 3 2016 home/

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Thank you for any hint, link to documentation about this new way to show UID/GID of a container.

You are using user namespaces, yes?

Yes, so? How can it explains the recent changes ?

So, how can we know about recent changes if you build your own kernel? -ARCH kernels have CONFIG_USER_NS disabled. -- Leonid Isaev