Comment 23 for bug 1542516

Reviewed: https://review.opencontrail.org/18496
Committed: http://github.org/Juniper/contrail-controller/commit/a6ec84cec82bd8ff7649b1836a0a542148914b48
Submitter: Zuul
Branch: R2.20

commit a6ec84cec82bd8ff7649b1836a0a542148914b48
Author: Nipa Kumar <email address hidden>
Date: Mon Feb 22 16:28:59 2016 -0800

Default zones will have an empty forwarders {} list.

1) Add default zone config (A records) with empty forwarders list {}. This results
in contrail-named daemon delegating the subzone using NS records configured.
Adding forwarders list under zone ensure the rule applied for a zone.

Previously as the forwarders list was under view level, for any records
not in local-cache within the zone, resulted in queries being forwarded.

2) Add RR zones (PTR records) with an empty forwarders list. This will result in
DNS not trying to resolve the PTR records when RR is disabled.

3) When dns forwarder is configured, this will apply at view level and zone
level will not be empty anymore.

4) When dns forwarder is configures, zone level will be empty only if RR is
diabled for PTR records.

view "default-domain-vdns-1" {
rrset-order {order random;};
virtual-forwarder "default-domain-vdns-2";
zone "1.1.21.in-addr.arpa." IN {
type master;
file "/etc/contrail/dns/default-domain-vdns-1.1.1.21.in-addr.arpa.zone";
allow-update {127.0.0.1;};
};
zone "new.net" IN {
type master;
file "/etc/contrail/dns/default-domain-vdns-1.new.net.zone";
allow-update {127.0.0.1;};
};
};

view "default-domain-vdns-2" {
rrset-order {order random;};
forwarders {8.8.8.8; 10.84.5.100; 172.21.200.60; 172.29.131.60; };
zone "1.1.31.in-addr.arpa." IN {
type master;
file "/etc/contrail/dns/default-domain-vdns-2.1.1.31.in-addr.arpa.zone";
allow-update {127.0.0.1;};
forwarders { };
};
zone "4.4.4.in-addr.arpa." IN {
type master;
file "/etc/contrail/dns/default-domain-vdns-2.4.4.4.in-addr.arpa.zone";
allow-update {127.0.0.1;};
forwarders { };
};
zone "new.net" IN {
type master;
file "/etc/contrail/dns/default-domain-vdns-2.new.net.zone";
allow-update {127.0.0.1;};
forwarders { };
};
};

view "default-domain-vdns-ns-record" {
rrset-order {order random;};
forwarders {8.8.8.8; 10.84.5.100; 172.21.200.60; 172.29.131.60; };
zone "2.2.2.in-addr.arpa." IN {
type master;
file "/etc/contrail/dns/default-domain-vdns-ns-record.2.2.2.in-addr.arpa.zone";
allow-update {127.0.0.1;};
forwarders { };
};
zone "6.6.6.in-addr.arpa." IN {
type master;
file "/etc/contrail/dns/default-domain-vdns-ns-record.6.6.6.in-addr.arpa.zone";
allow-update {127.0.0.1;};
forwarders { };
};
zone "abc.net" IN {
type master;
file "/etc/contrail/dns/default-domain-vdns-ns-record.abc.net.zone";
allow-update {127.0.0.1;};
forwarders { };
};
};

Change-Id: I3a573c771d09a247a0627fab3734af7f176f66ff
Closes-Bug:1547236
Closes-Bug:1542516