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The blueprint currently seems libvirt specific to me?  Is there a common - perhaps abstracted - interface that we can provide through Nova / image meta-data which will be implemented by each driver in their own way?

Otherwise I can see a bigger mess of metadata values where libvirt uses enable_unix_channels, Xen uses enable_cross_domain_channel - each with their corresponding and custom ways of configuring the behaviour.



Bob



________________________________
From: Ravi Chunduru [ravivsn at gmail.com]
Sent: 02 October 2013 19:07
To: Daniel P. Berrange; OpenStack Development Mailing List
Subject: Re: [openstack-dev] [Nova] [Libvirt] Virtio-Serial support for Nova libvirt driver

Hi Daniel,
  I will modify the blueprint as per your suggestions. Actually, we can use state_path in nova.conf if set or the default location.

Thanks,
-Ravi.


On Tue, Oct 1, 2013 at 1:57 AM, Daniel P. Berrange <berrange at redhat.com<mailto:berrange at redhat.com>> wrote:
On Mon, Sep 30, 2013 at 02:25:30PM -0700, Ravi Chunduru wrote:
> Alessandro,
>  I agree with you. I created a Blueprint. Let us collaborate and achieve
> this on all types of hypervisors.
>
> All,
>
> Here is the link for the BP as discussed.
> https://blueprints.launchpad.net/nova/+spec/appliance-communication-channel

That needs to be expanded to describe more about the intended usage
of the setup, and consider any security issues. IMHO we really do
not want this exposed to end users - particularly not whuen you are
proposing the ability to set arbitrary file paths for the UNIX
sockets against images. That woudl be a security flaw as proposed
in that doc.


Daniel
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Ravi
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