armando-migliaccio 003091a974 Set default value for dnsmasq_local_resolv to False ...

patch 0de1d8d4c introduced a new behavior whereby dnsmasq can rely
on dns resolvers defined in the host's resolv.conf, and it did
that by default.

However this may introduce dns timeouts if the dns servers
are not reachable for whatever reason. This may be especially
likely in certain gate configurations (where the VM under test
is a guest itself).

Regardless of the root-cause analysis, this option should have
defaulted to False to preserve backward compatibility, therefore
this patch restores the old behavior in a way that local DNS
resolution occurs only if the new option variable is set to
True, or the admin has not explicitly set the list of DNS
servers to be injected in the DHCP response.

DocImpact: document how to configure DNS resolution by dnsmasq

Change-Id: I90ab26bfa83c2d23c92110b8da73ef771e11f7bb

2016-01-27 16:42:11 +00:00

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