Add documentation on confidential nodes configuration for node pools (#…

…8791) (#6178)

Signed-off-by: Modular Magician <[email protected]>

.changelog/8791.txt

@@ -0,0 +1,3 @@
+```release-note:none
+
+```

website/docs/r/container_cluster.html.markdown

@@ -1067,7 +1067,8 @@ notification_config {
 
 <a name="nested_confidential_nodes"></a> The `confidential_nodes` block supports:
 
-* `enabled` (Required) - Enable Confidential Nodes for this cluster.
+* `enabled` (Required) - Enable Confidential GKE Nodes for this cluster, to
+    enforce encryption of data in-use.
 
 <a name="nested_pod_security_policy_config"></a>The `pod_security_policy_config` block supports:
 

website/docs/r/container_node_pool.html.markdown

@@ -111,6 +111,8 @@ resource "google_container_cluster" "primary" {
 * `autoscaling` - (Optional) Configuration required by cluster autoscaler to adjust
     the size of the node pool to the current cluster usage. Structure is [documented below](#nested_autoscaling).
 
+* `confidential_nodes` - (Optional) Configuration for Confidential Nodes feature. Structure is [documented below](#nested_confidential_nodes).
+
 * `initial_node_count` - (Optional) The initial number of nodes for the pool. In
     regional or multi-zonal clusters, this is the number of nodes per zone. Changing
     this will force recreation of the resource. WARNING: Resizing your node pool manually
@@ -192,6 +194,11 @@ cluster.
     * "ANY" - Instructs the cluster autoscaler to prioritize utilization of unused reservations,
       and reduce preemption risk for Spot VMs.
 
+<a name="nested_confidential_nodes"></a> The `confidential_nodes` block supports:
+
+* `enabled` (Required) - Enable Confidential GKE Nodes for this cluster, to
+    enforce encryption of data in-use.
+
 <a name="nested_management"></a>The `management` block supports:
 
 * `auto_repair` - (Optional) Whether the nodes will be automatically repaired.