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2013-04-03 13:23:09 -0600 asked a question How are dnsmasq DNS entries generated and FQDN then sent to instances ?

Hi all,

We are facing an issue in our folsom (currently with nova-network) deployment :

As we are using Puppet to manage the configuration of our instances, we need to set up the FQDNs accordingly to pull the right configurations (eg. and will get different configurations based on the environment type prod or dev).

We wanted to proceed in the following way :

In /etc/nova/nova.conf

#Will be common to all of the instances

And then name our instances,, etc. to get the correct FQDN. As it turns out, instances don't get FQDN as expected :

$ hostname
$ hostname -f

So we have a part of the hostname that is stripped. Is this a normal behavior, a misconfiguration ? Is it openstack that strips the hostname before sending it to dnsmasq or rather dnsmasq that creates a dns entry with only what's before the first dot ? Or something else ??