Here’s some short notes on how to configure DNS for libvirt managed VMs.
- Create a libvirt network, and add the following to it’s XML:
<network> ... <domain name='my.domain.local'/> ... </network>
- Ensure the instance has DHCP_HOSTNAME set in network-scripts. I use virt-edit to do this:
virt-edit \ -d $name \ /etc/sysconfig/network-scripts/ifcfg-eth0 \ -e 's/^DHCP_HOSTNAME=.*/DHCP_HOSTNAME="'$name'"/'
(above is taken from https://gist.github.com/brk3/8d029adf03fbfcd5b69f473cea451355)
- Ensure the gateway is available as a nameserver in /etc/resolv.conf:
That’s it, VMs should be pingable/contactable via their hostnames from the host.