From e26be9cb8a8119ea7cb4cf9209e782e667122323 Mon Sep 17 00:00:00 2001
From: Vladimir Kozyrev <v.kozyrev.sa@gmail.com>
Date: Wed, 31 May 2017 12:11:47 +0300
Subject: [PATCH] add private dns server for a specific zone

---
 inventory/group_vars/k8s-cluster.yml        | 5 +++++
 roles/dnsmasq/defaults/main.yml             | 3 +++
 roles/dnsmasq/templates/01-kube-dns.conf.j2 | 5 +++++
 3 files changed, 13 insertions(+)

diff --git a/inventory/group_vars/k8s-cluster.yml b/inventory/group_vars/k8s-cluster.yml
index ef5e363dc..350be8240 100644
--- a/inventory/group_vars/k8s-cluster.yml
+++ b/inventory/group_vars/k8s-cluster.yml
@@ -132,3 +132,8 @@ efk_enabled: false
 
 # Helm deployment
 helm_enabled: false
+
+# dnsmasq
+# dnsmasq_upstream_dns_servers:
+#  - /resolvethiszone.with/10.0.4.250
+#  - 8.8.8.8
diff --git a/roles/dnsmasq/defaults/main.yml b/roles/dnsmasq/defaults/main.yml
index 58b1b7f1d..bf670c788 100644
--- a/roles/dnsmasq/defaults/main.yml
+++ b/roles/dnsmasq/defaults/main.yml
@@ -30,3 +30,6 @@ dns_memory_requests: 50Mi
 # Autoscaler parameters
 dnsmasq_nodes_per_replica: 10
 dnsmasq_min_replicas: 1
+
+# Custom name servers
+dnsmasq_upstream_dns_servers: []
diff --git a/roles/dnsmasq/templates/01-kube-dns.conf.j2 b/roles/dnsmasq/templates/01-kube-dns.conf.j2
index dce26d726..483be2090 100644
--- a/roles/dnsmasq/templates/01-kube-dns.conf.j2
+++ b/roles/dnsmasq/templates/01-kube-dns.conf.j2
@@ -11,6 +11,11 @@ server=/{{ dns_domain }}/{{ skydns_server }}
 local=/{{ bogus_domains }}
 
 #Set upstream dns servers
+{% if dnsmasq_upstream_dns_servers|length > 0 %}
+{% for srv in dnsmasq_upstream_dns_servers %}
+server={{ srv }}
+{% endfor %}
+{% endif %}
 {% if system_and_upstream_dns_servers|length > 0 %}
 {% for srv in system_and_upstream_dns_servers %}
 server={{ srv }}