using --cluster-domain for kube-dns domain (#2303)

Azure · Feb 20, 2018 · e921a08 · e921a08
1 parent 2e6d7cf
commit e921a08
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Showing 5 changed files with 12 additions and 5 deletions.
diff --git a/parts/k8s/addons/kubernetesmasteraddons-kube-dns-deployment.yaml b/parts/k8s/addons/kubernetesmasteraddons-kube-dns-deployment.yaml
@@ -74,7 +74,7 @@ spec:
           optional: true
       containers:
       - args:
-        - "--domain=cluster.local."
+        - "--domain=<kubernetesKubeletClusterDomain>."
         - "--dns-port=10053"
         - "--v=2"
         - "--config-dir=/kube-dns-config"
@@ -138,9 +138,9 @@ spec:
         - mountPath: /kube-dns-config
           name: kube-dns-config
       - args:
-        - "--cmd=nslookup kubernetes.default.svc.cluster.local 127.0.0.1 >/dev/null"
+        - "--cmd=nslookup kubernetes.default.svc.<kubernetesKubeletClusterDomain> 127.0.0.1 >/dev/null"
         - "--url=/healthz-dnsmasq"
-        - "--cmd=nslookup kubernetes.default.svc.cluster.local 127.0.0.1:10053 >/dev/null"
+        - "--cmd=nslookup kubernetes.default.svc.<kubernetesKubeletClusterDomain> 127.0.0.1:10053 >/dev/null"
         - "--url=/healthz-kubedns"
         - "--port=8080"
         - "--quiet"

diff --git a/parts/k8s/kubernetesmastercustomdata.yml b/parts/k8s/kubernetesmastercustomdata.yml
@@ -184,9 +184,8 @@ MASTER_ARTIFACTS_CONFIG_PLACEHOLDER
     sed -i "s|<kubernetesHyperkubeSpec>|{{WrapAsVariable "kubernetesHyperkubeSpec"}}|g" "/etc/kubernetes/manifests/kube-controller-manager.yaml"
     sed -i "s|<kubernetesHyperkubeSpec>|{{WrapAsVariable "kubernetesHyperkubeSpec"}}|g" "/etc/kubernetes/manifests/kube-scheduler.yaml"
     sed -i "s|<kubernetesHyperkubeSpec>|{{WrapAsVariable "kubernetesHyperkubeSpec"}}|g; s|<kubeClusterCidr>|{{WrapAsVariable "kubeClusterCidr"}}|g" "/etc/kubernetes/addons/kube-proxy-daemonset.yaml"
-    sed -i "s|<kubernetesKubeDNSSpec>|{{WrapAsVariable "kubernetesKubeDNSSpec"}}|g; s|<kubernetesDNSMasqSpec>|{{WrapAsVariable "kubernetesDNSMasqSpec"}}|g; s|<kubernetesExecHealthzSpec>|{{WrapAsVariable "kubernetesExecHealthzSpec"}}|g" "/etc/kubernetes/addons/kube-dns-deployment.yaml"
+    sed -i "s|<kubernetesKubeDNSSpec>|{{WrapAsVariable "kubernetesKubeDNSSpec"}}|g; s|<kubernetesDNSMasqSpec>|{{WrapAsVariable "kubernetesDNSMasqSpec"}}|g; s|<kubernetesExecHealthzSpec>|{{WrapAsVariable "kubernetesExecHealthzSpec"}}|g; s|<kubernetesKubeletClusterDomain>|{{WrapAsVariable "kubernetesKubeletClusterDomain"}}|g; s|<kubeDNSServiceIP>|{{WrapAsVariable "kubeDNSServiceIP"}}|g" "/etc/kubernetes/addons/kube-dns-deployment.yaml"
     sed -i "s|<kubernetesHeapsterSpec>|{{WrapAsVariable "kubernetesHeapsterSpec"}}|g; s|<kubernetesAddonResizerSpec>|{{WrapAsVariable "kubernetesAddonResizerSpec"}}|g" "/etc/kubernetes/addons/kube-heapster-deployment.yaml"
-    sed -i "s|<kubeDNSServiceIP>|{{WrapAsVariable "kubeDNSServiceIP"}}|g" "/etc/kubernetes/addons/kube-dns-deployment.yaml"
 
 {{if .OrchestratorProfile.KubernetesConfig.IsDashboardEnabled}}
     sed -i "s|<kubernetesDashboardSpec>|{{WrapAsVariable "kubernetesDashboardSpec"}}|g" "/etc/kubernetes/addons/kubernetes-dashboard-deployment.yaml"

diff --git a/parts/k8s/kubernetesmastervars.t b/parts/k8s/kubernetesmastervars.t
@@ -126,6 +126,7 @@
     "vnetCniLinuxPluginsURL":"[parameters('vnetCniLinuxPluginsURL')]",
     "vnetCniWindowsPluginsURL":"[parameters('vnetCniWindowsPluginsURL')]",
     "kubernetesNonMasqueradeCidr": "[parameters('kubernetesNonMasqueradeCidr')]",
+    "kubernetesKubeletClusterDomain": "[parameters('kubernetesKubeletClusterDomain')]",
     "maxPods": "[parameters('maxPods')]",
     "vnetCidr": "[parameters('vnetCidr')]",
     "gcHighThreshold":"[parameters('gcHighThreshold')]",

diff --git a/parts/k8s/kubernetesparams.t b/parts/k8s/kubernetesparams.t
@@ -210,6 +210,12 @@
       },
       "type": "string"
     },
+    "kubernetesKubeletClusterDomain": {
+      "metadata": {
+        "description": "--cluster-domain Kubelet config"
+      },
+      "type": "string"
+    },
     "kubernetesHyperkubeSpec": {
       {{PopulateClassicModeDefaultValue "kubernetesHyperkubeSpec"}}
       "metadata": {

diff --git a/pkg/acsengine/engine.go b/pkg/acsengine/engine.go
@@ -619,6 +619,7 @@ func getParameters(cs *api.ContainerService, isClassicMode bool, generatorCode s
 		addValue(parametersMap, "cloudProviderRatelimitBucket", strconv.Itoa(properties.OrchestratorProfile.KubernetesConfig.CloudProviderRateLimitBucket))
 		addValue(parametersMap, "kubeClusterCidr", properties.OrchestratorProfile.KubernetesConfig.ClusterSubnet)
 		addValue(parametersMap, "kubernetesNonMasqueradeCidr", properties.OrchestratorProfile.KubernetesConfig.KubeletConfig["--non-masquerade-cidr"])
+		addValue(parametersMap, "kubernetesKubeletClusterDomain", properties.OrchestratorProfile.KubernetesConfig.KubeletConfig["--cluster-domain"])
 		addValue(parametersMap, "generatorCode", generatorCode)
 		if properties.HostedMasterProfile != nil {
 			addValue(parametersMap, "orchestratorName", "aks")