Enable DNS AutoScaler for CoreDNS (#3707)

* Enable AutoScaler for CoreDNS

* Only use one template for dns autoscaler

* Rename a few variables for replicas and minimum pods

* Rename a few variables for replicas and minimum pods

* Remove replicas to make autoscale work

* Cleanup kubedns-autoscaler as it has been renamed

tests/files/do_ubuntu-canal-ha.yml

@@ -5,5 +5,5 @@ mode: ha
 # Deployment settings
 kube_network_plugin: canal
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 # cloud_provider: 'do'

tests/files/gce_centos-weave-kubeadm-sep.yml

@@ -11,5 +11,5 @@ kube_network_plugin: weave
 kubeadm_enabled: true
 deploy_netchecker: true
 kubernetes_audit: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_centos7-calico-ha.yml

@@ -9,5 +9,5 @@ kube_network_plugin: calico
 download_localhost: true
 download_run_once: true
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_centos7-cilium.yml

@@ -8,5 +8,5 @@ mode: default
 kube_network_plugin: cilium
 deploy_netchecker: true
 enable_network_policy: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_centos7-flannel-addons.yml

@@ -12,7 +12,7 @@ etcd_events_cluster_setup: true
 local_volume_provisioner_enabled: true
 etcd_deployment_type: host
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce
 kube_encrypt_secret_data: true
 ingress_nginx_enabled: true

tests/files/gce_centos7-kube-router.yml

@@ -8,5 +8,5 @@ mode: default
 kube_network_plugin: kube-router
 deploy_netchecker: true
 enable_network_policy: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_centos7-multus-calico.yml

@@ -8,5 +8,5 @@ mode: default
 kube_network_plugin_multus: true
 kube_network_plugin: calico
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_coreos-alpha-weave-ha.yml

@@ -9,5 +9,5 @@ startup_script: 'systemctl disable locksmithd && systemctl stop locksmithd'
 kube_network_plugin: weave
 resolvconf_mode: host_resolvconf # this is required as long as the coreos stable channel uses docker < 1.12
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_coreos-calico-aio.yml

@@ -11,5 +11,5 @@ no_group_vars: true
 kube_network_plugin: calico
 resolvconf_mode: host_resolvconf # this is required as long as the coreos stable channel uses docker < 1.12
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_coreos-canal.yml

@@ -8,5 +8,5 @@ startup_script: 'systemctl disable locksmithd && systemctl stop locksmithd'
 kube_network_plugin: canal
 resolvconf_mode: host_resolvconf # this is required as long as the coreos stable channel uses docker < 1.12
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_coreos-cilium.yml

@@ -9,5 +9,5 @@ kube_network_plugin: cilium
 resolvconf_mode: host_resolvconf # this is required as long as the coreos stable channel uses docker < 1.12
 deploy_netchecker: true
 enable_network_policy: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_coreos-kube-router.yml

@@ -9,5 +9,5 @@ kube_network_plugin: kube-router
 bootstrap_os: coreos
 resolvconf_mode: host_resolvconf # this is required as long as the coreos stable channel uses docker < 1.12
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_debian8-calico-upgrade.yml

@@ -6,5 +6,5 @@ mode: default
 # Deployment settings
 kube_network_plugin: calico
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_opensuse-canal.yml

@@ -6,5 +6,5 @@ mode: default
 # Deployment settings
 kube_network_plugin: canal
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_rhel7-canal-sep.yml

@@ -6,5 +6,5 @@ mode: separate
 # Deployment settings
 kube_network_plugin: canal
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_rhel7-cilium.yml

@@ -7,5 +7,5 @@ mode: default
 kube_network_plugin: cilium
 deploy_netchecker: true
 enable_network_policy: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_rhel7-weave.yml

@@ -6,5 +6,5 @@ mode: default
 # Deployment settings
 kube_network_plugin: weave
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_ubuntu-canal-ha.yml

@@ -6,5 +6,5 @@ mode: ha
 # Deployment settings
 kube_network_plugin: canal
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_ubuntu-canal-kubeadm.yml

@@ -9,5 +9,5 @@ kube_network_plugin: canal
 kubeadm_enabled: true
 dynamic_kubelet_configuration: true
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_ubuntu-cilium-sep.yml

@@ -7,6 +7,6 @@ mode: separate
 kube_network_plugin: cilium
 deploy_netchecker: true
 enable_network_policy: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce
 

tests/files/gce_ubuntu-contiv-sep.yml

@@ -6,5 +6,5 @@ mode: separate
 # Deployment settings
 kube_network_plugin: contiv
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_ubuntu-flannel-sep.yml

@@ -6,5 +6,5 @@ mode: separate
 # Deployment settings
 kube_network_plugin: flannel
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_ubuntu-kube-router-sep.yml

@@ -7,5 +7,5 @@ mode: separate
 bootstrap_os: ubuntu
 kube_network_plugin: kube-router
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_ubuntu-rkt-sep.yml

@@ -10,5 +10,5 @@ kubelet_deployment: rkt
 download_localhost: true
 download_run_once: true
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_ubuntu-weave-sep.yml

@@ -6,5 +6,5 @@ mode: separate
 # Deployment settings
 kube_network_plugin: weave
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce

tests/files/gce_ubuntu18-flannel-aio.yml

@@ -8,5 +8,5 @@ mode: aio
 kube_network_plugin: flannel
 dynamic_kubelet_configuration: true
 deploy_netchecker: true
-kubedns_min_replicas: 1
+dns_min_replicas: 1
 cloud_provider: gce