Re: [libvirt] [PATCH] bridge_driver: use conffile for dnsmasq if it exists

2010/12/22 Eric Blake&lt;eblake(a)redhat.com&gt;: > 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.