Merge pull request #4 from simplepractice/186727615_add_md_options

[#186727615] Add support, somewhat from upstream, for metadata_options

Author: johnmadden-sp

README.md

@@ -133,6 +133,7 @@ No modules.
 | <a name="input_ipv6_address_count"></a> [ipv6\_address\_count](#input\_ipv6\_address\_count) | A number of IPv6 addresses to associate with the primary network interface. Amazon EC2 chooses the IPv6 addresses from the range of your subnet. | `number` | `null` | no |
 | <a name="input_ipv6_addresses"></a> [ipv6\_addresses](#input\_ipv6\_addresses) | Specify one or more IPv6 addresses from the range of the subnet to associate with the primary network interface | `list(string)` | `null` | no |
 | <a name="input_key_name"></a> [key\_name](#input\_key\_name) | The key name to use for the instance | `string` | `""` | no |
+| <a name="input_metadata_options"></a> [metadata\_options](#input\_metadata\_options) | Customize the metadata options of the instance | `map(string)` | <pre>{<br>  "http_endpoint": "enabled",<br>  "http_put_response_hop_limit": 1,<br>  "http_tokens": "optional"<br>}</pre> | no |
 | <a name="input_monitoring"></a> [monitoring](#input\_monitoring) | If true, the launched EC2 instance will have detailed monitoring enabled | `bool` | `false` | no |
 | <a name="input_name"></a> [name](#input\_name) | Name to be used on all resources as prefix | `string` | n/a | yes |
 | <a name="input_network_interface"></a> [network\_interface](#input\_network\_interface) | Customize network interfaces to be attached at instance boot time | `list(map(string))` | `[]` | no |

main.tf

@@ -70,6 +70,16 @@ resource "aws_instance" "this" {
     }
   }
 
+  dynamic "metadata_options" {
+    for_each = length(var.metadata_options) > 0 ? [var.metadata_options] : []
+
+    content {
+      http_endpoint               = try(metadata_options.value.http_endpoint, "enabled")
+      http_tokens                 = try(metadata_options.value.http_tokens, "optional")
+      http_put_response_hop_limit = try(metadata_options.value.http_put_response_hop_limit, 1)
+    }
+  }
+
   source_dest_check                    = length(var.network_interface) > 0 ? null : var.source_dest_check
   disable_api_termination              = var.disable_api_termination
   instance_initiated_shutdown_behavior = var.instance_initiated_shutdown_behavior

variables.tf

@@ -198,3 +198,13 @@ variable "format_fqdn" {
   type        = bool
   default     = true
 }
+
+variable "metadata_options" {
+  description = "Customize the metadata options of the instance"
+  type        = map(string)
+  default = {
+    "http_endpoint"               = "enabled"
+    "http_put_response_hop_limit" = 1
+    "http_tokens"                 = "optional"
+  }
+}