Yunohost 2.4: how to set up a fully recursive DNS resolver?

My VPS provider configures OpenVZ to use the Google Public IPv4/6 DNS resolvers ( etc.). Running the latest Yunohost 2.4 on Debian 8, this means that all the DNS resolution is forwarded to Google’s servers. For various reasons, I don’t want to do this, preferring to have my Yunohost do the entire recursive lookup.

According to [Solved] Configuring DNS resolver / Configurer le DNS interne Yunohost can do its own recursive DNS resolution via a slightly changed dnsmasq configuration in file /etc/dhcp/dhclient (the dnsmasq.conf file mentions that resolv-file=/etc/resolv.conf is already the default)

But that file does not exist in Yunohost 2.4: where is dnclient getting its configuration information in 2.4?