add private dns server for a specific zone

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

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: []

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 }}