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Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qem

From: Anthony Liguori
Subject: Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu
Date: Thu, 05 Nov 2009 10:06:01 -0600
User-agent: Thunderbird (X11/20090825)

Avi Kivity wrote:
If we make this easy for management software to do, they're more likely to do the right thing.

But we're forcing our style of security management on them. How to store permissions is the management system's job (and for a clu^Houd, it will typically be stored in a central database, not be scattered around /etc).

Again, IMO we should stick to making a guest work, and leave all the glue to management.

That's short sighted. If we just focus on "making a guest work" we'll end up with crappy interfaces that cripple management tools. If users are constantly struggling to do even the simplest things with qemu, then it doesn't matter how well our "guest works". No one will use it.

I think we absolutely have to think about the full stack and how all the pieces interact. There are definitely problems in the stack right now. Security is the one I'm trying to address in this series. If you cannot launch a reasonable configured qemu from the command line as an unprivileged user, there's really no hope that we can expect a management tool to do that.

Again, there are no shortage of existence proofs of this (beyond libvirt). I suspect there isn't a management tool out there that does the right thing today.


Anthony Liguori

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