fixed issue with mesos-dns configuration on master, added MESOS_DNS_V…

[clca]

…ERSION to make easier to point to the latest version

[clca]

You are looking at the wrong file, that section is supposed to be outside the if isAgent block,
....
else
echo "ports:[1-21,23-5050,5052-32000]" | sudo tee /etc/mesos-slave/resources
fi
hostname -i | sudo tee /etc/mesos-slave/ip
hostname | sudo tee /etc/mesos-slave/hostname
fi

Add mesos-dns IP addresses to the head file, so they are at the top of the file

for i in seq 0 $((MASTERCOUNT-1)) ;
do
MASTEROCTET=expr $MASTERFIRSTADDR + $i
IPADDR="${BASESUBNET}${MASTEROCTET}"
echo nameserver $IPADDR | sudo tee -a /etc/resolvconf/resolv.conf.d/head

done
cat /etc/resolvconf/resolv.conf.d/head
sudo service resolvconf restart

Note: you can remove the line with cat /etc/resolvconf/resolv.conf.d/head, added only for debugging.