Adding max unavailable for node group updates (#798)

* CLD-8769: Adding max unavailable for node group updates

* CLD-8769: Update DOCS

* CLD-8769: Update DOCS

aws/eks-customer/README.md

@@ -111,6 +111,7 @@
 | <a name="input_region"></a> [region](#input\_region) | The region for the EKS cluster | `string` | `"us-east-1"` | no |
 | <a name="input_snapshot_controller_version"></a> [snapshot\_controller\_version](#input\_snapshot\_controller\_version) | n/a | `string` | n/a | yes |
 | <a name="input_staff_role_arn"></a> [staff\_role\_arn](#input\_staff\_role\_arn) | The staff role arn | `string` | n/a | yes |
+| <a name="input_update_config"></a> [update\_config](#input\_update\_config) | Configuration block of settings for max unavailable resources during node group updates | `map(string)` | <pre>{<br/>  "max_unavailable": 1<br/>}</pre> | no |
 | <a name="input_use_name_prefix"></a> [use\_name\_prefix](#input\_use\_name\_prefix) | Determines whether to use `name` as is or create a unique name beginning with the `name` as the prefix | `bool` | `false` | no |
 | <a name="input_utilities"></a> [utilities](#input\_utilities) | The list of utilities | <pre>list(object({<br/>    name               = string<br/>    enable_irsa        = bool<br/>    internal_dns       = any<br/>    service_account    = string<br/>    cluster_label_type = string<br/>  }))</pre> | n/a | yes |
 | <a name="input_volume_delete_on_termination"></a> [volume\_delete\_on\_termination](#input\_volume\_delete\_on\_termination) | Indicates whether the EBS volume is deleted on termination | `bool` | `true` | no |

aws/eks-customer/eks_managed_node-group.tf

@@ -46,6 +46,8 @@ module "managed_node_group" {
   max_size     = each.value.max_size
   desired_size = each.value.desired_size
 
+  update_config = var.update_config
+
   taints = each.value.taints
   labels = each.value.labels
 

aws/eks-customer/variables.tf

@@ -275,3 +275,11 @@ variable "volume_delete_on_termination" {
   type        = bool
   default     = true
 }
+
+variable "update_config" {
+  description = "Configuration block of settings for max unavailable resources during node group updates"
+  type        = map(string)
+  default = {
+    max_unavailable = 1
+  }
+}