2010/12/22 Eric Blake <eblake@redhat.com>:
On 12/21/2010 03:40 PM, Paweł Krześniak wrote:
This patch adds possibility to run customized DNS/DHCP environment, by spawning dnsmasq with alternative configuration file if such file exists. This allows you to set any parameter described in dnsmasq(8). Configuration file is expected to be located in file named "<network_name>-dnsmasq.conf" in DNSMASQ_STATE_DIR directory. If configuration file doesn't exists dnsmasq is spawned as before.
You'll want to wait for danpb or DV to comment, but I'm thinking this might be rejected, and that instead, we should consider addressing the issue of what dnsmasq parameters you want to affect, and how we can encode that into the libvirt XML without having to rely on an external dnsmasq conf file.
I want to create isolated environment for guests - they will be connected to one bridge and will use private DNS data. No single packet from this isolated network can reach external network - this means no 53/udp traffic to resolvers defined in host's /etc/resolv.conf. I'm using following dnsmasq parameters to achive this: no-hosts, no-resolv, addn-hosts, server. It will be nice if one could set log-queries and local-ttl also. With my patch I'm creating config file for this network and dnsmasq runs with --conf-file=/path/to/my/network_name-dnsmasq.conf option. This difference *is* visible on processes list. -- Pawel