Enable usage of gcp filestore csi driver (#5648) (#10998)

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

Author: modular-magician

.changelog/5648.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+container: added support for GCPFilestoreCSIDriver addon to `google_container_cluster` resource.
+```

google/resource_container_cluster.go

@@ -59,6 +59,7 @@ var (
 		"addons_config.0.horizontal_pod_autoscaling",
 		"addons_config.0.network_policy_config",
 		"addons_config.0.cloudrun_config",
+		"addons_config.0.gcp_filestore_csi_driver_config",
 	}
 
 	forceNewClusterNodeConfigFields = []string{
@@ -228,6 +229,23 @@ func resourceContainerCluster() *schema.Resource {
 								},
 							},
 						},
+						"gcp_filestore_csi_driver_config": {
+							Type:          schema.TypeList,
+							Optional:      true,
+							Computed:      true,
+							AtLeastOneOf:  addonsConfigKeys,
+							MaxItems:      1,
+							Description:   `The status of the Filestore CSI driver addon, which allows the usage of filestore instance as volumes. Defaults to disabled; set enabled = true to enable.`,
+							ConflictsWith: []string{"enable_autopilot"},
+							Elem: &schema.Resource{
+								Schema: map[string]*schema.Schema{
+									"enabled": {
+										Type:     schema.TypeBool,
+										Required: true,
+									},
+								},
+							},
+						},
 						"cloudrun_config": {
 							Type:         schema.TypeList,
 							Optional:     true,
@@ -2564,6 +2582,14 @@ func expandClusterAddonsConfig(configured interface{}) *container.AddonsConfig {
 		}
 	}
 
+	if v, ok := config["gcp_filestore_csi_driver_config"]; ok && len(v.([]interface{})) > 0 {
+		addon := v.([]interface{})[0].(map[string]interface{})
+		ac.GcpFilestoreCsiDriverConfig = &container.GcpFilestoreCsiDriverConfig{
+			Enabled:         addon["enabled"].(bool),
+			ForceSendFields: []string{"Enabled"},
+		}
+	}
+
 	if v, ok := config["cloudrun_config"]; ok && len(v.([]interface{})) > 0 {
 		addon := v.([]interface{})[0].(map[string]interface{})
 		ac.CloudRunConfig = &container.CloudRunConfig{
@@ -3068,6 +3094,14 @@ func flattenClusterAddonsConfig(c *container.AddonsConfig) []map[string]interfac
 		}
 	}
 
+	if c.GcpFilestoreCsiDriverConfig != nil {
+		result["gcp_filestore_csi_driver_config"] = []map[string]interface{}{
+			{
+				"enabled": c.GcpFilestoreCsiDriverConfig.Enabled,
+			},
+		}
+	}
+
 	if c.CloudRunConfig != nil {
 		cloudRunConfig := map[string]interface{}{
 			"disabled": c.CloudRunConfig.Disabled,

google/resource_container_cluster_test.go

@@ -2095,6 +2095,9 @@ resource "google_container_cluster" "primary" {
     network_policy_config {
       disabled = true
     }
+    gcp_filestore_csi_driver_config {
+      enabled = false
+    }
     cloudrun_config {
       disabled = true
     }
@@ -2130,6 +2133,9 @@ resource "google_container_cluster" "primary" {
     network_policy_config {
       disabled = false
     }
+    gcp_filestore_csi_driver_config {
+      enabled = true
+    }
     cloudrun_config {
       disabled = false
     }

website/docs/r/container_cluster.html.markdown

@@ -367,6 +367,10 @@ subnetwork in which the cluster's instances are launched.
     It can only be disabled if the nodes already do not have network policies enabled.
     Defaults to disabled; set `disabled = false` to enable.
 
+* `gcp_filestore_csi_driver_config` - (Optional) The status of the Filestore CSI driver addon, 
+    which allows the usage of filestore instance as volumes.
+    It is disbaled by default; set `enabled = true` to enable.
+
 * `cloudrun_config` - (Optional). Structure is [documented below](#nested_cloudrun_config).
 
 * `istio_config` - (Optional, [Beta](https://terraform.io/docs/providers/google/guides/provider_versions.html)).