k8s: Support enabling HA post-create. (#1058)

digitalocean/kubernetes/resource_kubernetes_cluster.go

@@ -62,7 +62,6 @@ func ResourceDigitalOceanKubernetesCluster() *schema.Resource {
 				Type:     schema.TypeBool,
 				Optional: true,
 				Default:  false,
-				ForceNew: true,
 			},
 
 			"registry_integration": {
@@ -414,13 +413,14 @@ func resourceDigitalOceanKubernetesClusterUpdate(ctx context.Context, d *schema.
 	client := meta.(*config.CombinedConfig).GodoClient()
 
 	// Figure out the changes and then call the appropriate API methods
-	if d.HasChanges("name", "tags", "auto_upgrade", "surge_upgrade", "maintenance_policy") {
+	if d.HasChanges("name", "tags", "auto_upgrade", "surge_upgrade", "maintenance_policy", "ha") {
 
 		opts := &godo.KubernetesClusterUpdateRequest{
 			Name:         d.Get("name").(string),
 			Tags:         tag.ExpandTags(d.Get("tags").(*schema.Set).List()),
-			AutoUpgrade:  godo.Bool(d.Get("auto_upgrade").(bool)),
+			AutoUpgrade:  godo.PtrTo(d.Get("auto_upgrade").(bool)),
 			SurgeUpgrade: d.Get("surge_upgrade").(bool),
+			HA:           godo.PtrTo(d.Get("ha").(bool)),
 		}
 
 		if maint, ok := d.GetOk("maintenance_policy"); ok {

digitalocean/kubernetes/resource_kubernetes_cluster_test.go

@@ -298,6 +298,7 @@ func TestAccDigitalOceanKubernetesCluster_UpdateCluster(t *testing.T) {
 				Check: resource.ComposeAggregateTestCheckFunc(
 					testAccCheckDigitalOceanKubernetesClusterExists("digitalocean_kubernetes_cluster.foobar", &k8s),
 					resource.TestCheckResourceAttr("digitalocean_kubernetes_cluster.foobar", "name", rName),
+					resource.TestCheckResourceAttr("digitalocean_kubernetes_cluster.foobar", "ha", "false"),
 				),
 			},
 			{
@@ -310,6 +311,7 @@ func TestAccDigitalOceanKubernetesCluster_UpdateCluster(t *testing.T) {
 					resource.TestCheckTypeSetElemAttr("digitalocean_kubernetes_cluster.foobar", "tags.*", "two"),
 					resource.TestCheckResourceAttr("digitalocean_kubernetes_cluster.foobar", "node_pool.0.labels.%", "0"),
 					resource.TestCheckResourceAttr("digitalocean_kubernetes_cluster.foobar", "surge_upgrade", "true"),
+					resource.TestCheckResourceAttr("digitalocean_kubernetes_cluster.foobar", "ha", "true"),
 				),
 			},
 		},
@@ -865,6 +867,7 @@ resource "digitalocean_kubernetes_cluster" "foobar" {
   name          = "%s"
   region        = "lon1"
   surge_upgrade = true
+  ha            = true
   version       = data.digitalocean_kubernetes_versions.test.latest_version
   tags          = ["one", "two"]
 

docs/resources/kubernetes_cluster.md

@@ -148,7 +148,7 @@ The following arguments are supported:
 * `vpc_uuid` - (Optional) The ID of the VPC where the Kubernetes cluster will be located.
 * `auto_upgrade` - (Optional) A boolean value indicating whether the cluster will be automatically upgraded to new patch releases during its maintenance window.
 * `surge_upgrade` - (Optional) Enable/disable surge upgrades for a cluster. Default: false
-* `ha` - (Optional) Enable/disable the high availability control plane for a cluster. High availability can only be set when creating a cluster. Any update will create a new cluster. Default: false
+* `ha` - (Optional) Enable/disable the high availability control plane for a cluster. Once enabled for a cluster, high availability cannot be disabled. Default: false
 * `registry_integration` - (optional) Enables or disables the DigitalOcean container registry integration for the cluster. This requires that a container registry has first been created for the account. Default: false
 * `node_pool` - (Required) A block representing the cluster's default node pool. Additional node pools may be added to the cluster using the `digitalocean_kubernetes_node_pool` resource. The following arguments may be specified:
   - `name` - (Required) A name for the node pool.