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Date: Fri, 14 Oct 2011 14:58:32 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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To: "Eric W. Biederman" <ebiederm@xmission.com>
CC: "Ted Ts'o" <tytso@mit.edu>, Kyle Moffett <kyle@moffetthome.net>,
        "J. Bruce Fields" <bfields@fieldses.org>,
        Matt Helsley <matthltc@us.ibm.com>,
        Lennart Poettering <mzxreary@0pointer.de>,
        Kay Sievers <kay.sievers@vrfy.org>, linux-kernel@vger.kernel.org,
        harald@redhat.com, david@fubar.dk, greg@kroah.com,
        Linux Containers <containers@lists.osdl.org>,
        Linux Containers <lxc-devel@lists.sourceforge.net>,
        "Serge E. Hallyn" <serge@hallyn.com>,
        Daniel Lezcano <daniel.lezcano@free.fr>,
        Paul Menage <paul@paulmenage.org>
Subject: Re: Detecting if you are running in a container
References: <20111011013201.GA7948@thunk.org> <20111011020530.GG16723@count0.beaverton.ibm.com> <20111011032523.GB7948@thunk.org> <m1ty7ghvvn.fsf@fess.ebiederm.org> <203BBB0D-293D-4BFB-A57B-41C56F58F9B3@mit.edu> <m17h4bfcuv.fsf@fess.ebiederm.org> <20111012175702.GA23231@fieldses.org> <CAGZ=bqJxadNqaPCW3HufrMmQ57x082=pCDa6-mWLsdtfxHgdPw@mail.gmail.com> <20111012190452.GA23845@fieldses.org> <CAGZ=bqJjgmtBfyXJ2eK1C0PfzkgBVWFTjkTYkC211ZT+-5f-UQ@mail.gmail.com> <20111014155406.GC13119@thunk.org> <m17h478n5k.fsf@fess.ebiederm.org>
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On 10/14/2011 11:04 AM, Eric W. Biederman wrote:
> 
> I have found and merged a solution that allows us to name namespaces
> without needing a namespaces for namespaces.
> 

Something based on UUIDs, perhaps?

UUIDs are kind of exactly this, after all... a single namespace designed
to be large and random enough to be globally unique without a central
registration authority.

	-hpa