openstack: use 16.04 for teuthology VM
@@ -1046,7 +1046,7 @@ openstack security group rule create --proto udp --dst-port 16000:65535 teutholo
arch = self.get_default_arch()
self.run(
"server create " +
- " --image '" + self.image('ubuntu', '14.04', arch) + "' " +
+ " --image '" + self.image('ubuntu', '16.04', arch) + "' " +
" --flavor '" + self.flavor(arch) + "' " +
" " + self.net() +
" --key-name " + self.args.key_name +
