[ovs-dev] [PATCH v6 3/3] ovn-northd: Add logical flows to support native DNS

[Ben Pfaff]

On Tue, Apr 25, 2017 at 07:59:54PM +0530, nusiddiq at redhat.com wrote:
> From: Numan Siddique <nusiddiq at redhat.com>
> 
> OVN implements native DNS resolution which can be used to resolve the
> internal DNS names belonging to a logical datapath.
> 
> To support this, a new table 'DNS' is added in the NB DB. A new column
> 'dns_records' is added in 'Logical_Switch' table which references to the
> 'DNS' table.
> 
> Following flows are added for each logical switch if configured with
> DNS records in the 'dns_records' column
>  - A logical flow in DNS_LOOKUP stage which uses the action 'dns_lookup'
>    to transform the DNS query to DNS reply packet and advances
>    to the next stage - DNS_RESPONSE.
> 
>  - A logical flow in DNS_RESPONSE stage which implements the DNS responder
>    by sending the DNS reply from previous stage back to the inport.
> 
> Signed-off-by: Numan Siddique <nusiddiq at redhat.com>
> Acked-by: Gurucharan Shetty <guru at ovn.org>

This has been a long time coming.  Thank you for persisting!  I think
that it will be a great feature.  I applied this series to master.

I sent out a patch to add conditional monitoring support:
        https://mail.openvswitch.org/pipermail/ovs-dev/2017-May/331836.html