Changed admin_username and key_data to require a new resource.

azurerm/resource_arm_kubernetes_cluster.go

@@ -54,10 +54,13 @@ func resourceArmKubernetesCluster() *schema.Resource {
 						"admin_username": {
 							Type:     schema.TypeString,
 							Required: true,
+							ForceNew: true,
 						},
 						"ssh_key": {
 							Type:     schema.TypeList,
 							Required: true,
+							ForceNew: true,
+
 							Elem: &schema.Resource{
 								Schema: map[string]*schema.Schema{
 									"key_data": {
@@ -376,9 +379,10 @@ func expandAzureRmKubernetesClusterLinuxProfile(d *schema.ResourceData) containe
 	adminUsername := config["admin_username"].(string)
 	linuxKeys := config["ssh_key"].([]interface{})
 
-	key := linuxKeys[0].(map[string]interface{})
-	keyData := key["key_data"].(string)
-
+	keyData := ""
+	if key, ok := linuxKeys[0].(map[string]interface{}); ok {
+		keyData = key["key_data"].(string)
+	}
 	sshPublicKey := containerservice.SSHPublicKey{
 		KeyData: &keyData,
 	}

examples/aci-linux-multi/main.tf

@@ -3,7 +3,7 @@ resource "azurerm_resource_group" "aci-rg" {
     location = "${var.resource_group_location}"
 }
 
-#an attempt to keep the aci container group name (an dns label) somewhat omunique
+#an attempt to keep the aci container group name (and dns label) somewhat unique
 resource "random_integer" "random_int" {
     min = 100
     max = 999

examples/kubernetes-cluster/main.tf

@@ -0,0 +1,39 @@
+resource "azurerm_resource_group" "akc-rg" {
+    name     = "${var.resource_group_name}"
+    location = "${var.resource_group_location}"
+}
+
+#an attempt to keep the aci container group name (and dns label) somewhat unique
+resource "random_integer" "random_int" {
+    min = 100
+    max = 999
+}
+
+resource "azurerm_kubernetes_cluster" "aks_container" {
+    name        = "akc-${random_integer.random_int.result}"
+    location    = "${var.resource_group_location}"
+    dns_prefix  = "akc-${random_integer.random_int.result}"
+
+    resource_group_name = "${azurerm_resource_group.akc-rg.name}"
+    kubernetes_version  = "1.8.7"
+
+
+    linux_profile {
+        admin_username = "${var.linux_admin_username}"
+        ssh_key {
+            key_data = "${var.linux_admin_ssh_publickey}"
+        }
+    }
+
+    agent_pool_profile {
+        name        = "agentpool"
+        count       = "2"
+        vm_size     = "Standard_DS2_v2"
+        os_type     = "Linux"
+    }
+
+    service_principal {
+        client_id     = "${var.client_id}"
+        client_secret = "${var.client_secret}"
+    }
+}

examples/kubernetes-cluster/outputs.tf

@@ -0,0 +1,4 @@
+
+output "id" {
+    value = "${azurerm_kubernetes_cluster.aks_container.id}"
+}

examples/kubernetes-cluster/variables.tf

@@ -0,0 +1,37 @@
+variable "name" {
+  type        = "string"
+  description = "Name of this cluster."
+  default     = "akc-example"
+}
+
+variable "client_id" {
+  type        = "string"
+  description = "Client ID"
+}
+
+variable "client_secret" {
+  type        = "string"
+  description = "Client secret."
+}
+
+variable "resource_group_name" {
+  type        = "string"
+  description = "Name of the azure resource group."
+  default     = "akc-rg"
+}
+
+variable "resource_group_location" {
+  type        = "string"
+  description = "Location of the azure resource group."
+  default     = "eastus"
+}
+
+variable "linux_admin_username" {
+  type        = "string"
+  description = "User name for authentication to the Kubernetes linux agent virtual machines in the cluster."
+}
+
+variable "linux_admin_ssh_publickey" {
+  type        = "string"
+  description = "Configure all the linux virtual machines in the cluster with the SSH RSA public key string. The key should include three parts, for example 'ssh-rsa AAAAB...snip...UcyupgH azureuser@linuxvm'"
+}

website/docs/r/kubernetes_cluster.html.markdown

@@ -79,12 +79,12 @@ The following arguments are supported:
 
 `linux_profile` supports the following:
 
-* `admin_username` - (Required) The Admin Username for the Cluster.
+* `admin_username` - (Required) The Admin Username for the Cluster. Changing this forces a new resource to be created.
 * `ssh_key` - (Required) An SSH Key block as documented below.
 
 `ssh_key` supports the following:
 
-* `key_data` - (Required) The Public SSH Key used to access the cluster.
+* `key_data` - (Required) The Public SSH Key used to access the cluster. Changing this forces a new resource to be created.
 
 `agent_pool_profile` supports the following:
 
@@ -105,7 +105,7 @@ The following attributes are exported:
 
 * `id` - The Kubernetes Managed Cluster ID.
 
-* `fqdn` - The FQDN of the Azure Kubernetes Managed Cluster.
+* `agent_pool_profile.#.fqdn` - The FQDN of the Azure Kubernetes Managed Cluster.
 
 ## Import