coredns: add includeUnschedulableNodes for dns-autoscaler

roles/kubernetes-apps/ansible/defaults/main.yml

@@ -10,6 +10,7 @@ dns_min_replicas: "{{ [2, groups['k8s_cluster'] | length] | min }}"
 dns_nodes_per_replica: 16
 dns_cores_per_replica: 256
 dns_prevent_single_point_failure: "{{ 'true' if dns_min_replicas | int > 1 else 'false' }}"
+dns_include_unschedulable_nodes: false
 enable_coredns_reverse_dns_lookups: true
 coredns_ordinal_suffix: ""
 # dns_extra_tolerations: [{effect: NoSchedule, operator: "Exists"}]

roles/kubernetes-apps/ansible/templates/dns-autoscaler.yml.j2

@@ -78,7 +78,7 @@ spec:
         command:
         - /cluster-proportional-autoscaler
         - --namespace=kube-system
-        - --default-params={"linear":{"preventSinglePointFailure":{{ dns_prevent_single_point_failure }},"coresPerReplica":{{ dns_cores_per_replica }},"nodesPerReplica":{{ dns_nodes_per_replica }},"min":{{ dns_min_replicas }}}}
+        - --default-params={"linear":{"preventSinglePointFailure":{{ dns_prevent_single_point_failure }},"coresPerReplica":{{ dns_cores_per_replica }},"nodesPerReplica":{{ dns_nodes_per_replica }},"min":{{ dns_min_replicas }},"includeUnschedulableNodes":{{ dns_include_unschedulable_nodes}}}}
         - --logtostderr=true
         - --v=2
         - --configmap=dns-autoscaler{{ coredns_ordinal_suffix }}