feat: Add local_ssd_ephemeral_count to default configuration

README.md

@@ -296,6 +296,7 @@ The node_pools variable takes the following parameters:
 | key | The key required for the taint | | Required |
 | logging_variant | The type of logging agent that is deployed by default for newly created node pools in the cluster. Valid values include DEFAULT and MAX_THROUGHPUT.  | DEFAULT | Optional |
 | local_ssd_count | The amount of local SSD disks that will be attached to each cluster node and may be used as a `hostpath` volume or a `local` PersistentVolume.  | 0 | Optional |
+| local_ssd_ephemeral_count | The amount of local SSD disks that will be attached to each cluster node and assigned as scratch space as an `emptyDir` volume. If unspecified, ephemeral storage is backed by the cluster node boot disk. | 0 | Optional |
 | local_nvme_ssd_count | Number of raw-block local NVMe SSD disks to be attached to the node.Each local SSD is 375 GB in size. If zero, it means no raw-block local NVMe SSD disks to be attached to the node. | 0 | Optional |
 | machine_type | The name of a Google Compute Engine machine type | e2-medium | Optional |
 | min_cpu_platform | Minimum CPU platform to be used by the nodes in the pool. The nodes may be scheduled on the specified or newer CPU platform. | " " | Optional |

cluster.tf

@@ -566,6 +566,12 @@ resource "google_container_node_pool" "pools" {
     disk_size_gb    = lookup(each.value, "disk_size_gb", 100)
     disk_type       = lookup(each.value, "disk_type", "pd-standard")
 
+    dynamic "ephemeral_storage_local_ssd_config" {
+      for_each = lookup(each.value, "local_ssd_ephemeral_count", 0) > 0 ? [each.value.local_ssd_ephemeral_count] : []
+      content {
+        local_ssd_count = ephemeral_storage_local_ssd_config.value
+      }
+    }
 
     dynamic "local_nvme_ssd_block_config" {
       for_each = lookup(each.value, "local_nvme_ssd_count", 0) > 0 ? [each.value.local_nvme_ssd_count] : []