Add a default for kibana_subdomain name (#104)

* Add a default for kibana_subdomain name

Closes #82

* Auto Format

Co-authored-by: cloudpossebot <11232728+cloudpossebot@users.noreply.github.com>

README.md

@@ -254,7 +254,7 @@ Available targets:
 | <a name="input_instance_count"></a> [instance\_count](#input\_instance\_count) | Number of data nodes in the cluster | `number` | `4` | no |
 | <a name="input_instance_type"></a> [instance\_type](#input\_instance\_type) | Elasticsearch instance type for data nodes in the cluster | `string` | `"t2.small.elasticsearch"` | no |
 | <a name="input_kibana_hostname_enabled"></a> [kibana\_hostname\_enabled](#input\_kibana\_hostname\_enabled) | Explicit flag to enable creating a DNS hostname for Kibana. If `true`, then `var.dns_zone_id` is required. | `bool` | `false` | no |
-| <a name="input_kibana_subdomain_name"></a> [kibana\_subdomain\_name](#input\_kibana\_subdomain\_name) | The name of the subdomain for Kibana in the DNS zone (\_e.g.\_ `kibana`, `ui`, `ui-es`, `search-ui`, `kibana.elasticsearch`) | `string` | n/a | yes |
+| <a name="input_kibana_subdomain_name"></a> [kibana\_subdomain\_name](#input\_kibana\_subdomain\_name) | The name of the subdomain for Kibana in the DNS zone (\_e.g.\_ `kibana`, `ui`, `ui-es`, `search-ui`, `kibana.elasticsearch`) | `string` | `""` | no |
 | <a name="input_label_key_case"></a> [label\_key\_case](#input\_label\_key\_case) | The letter case of label keys (`tag` names) (i.e. `name`, `namespace`, `environment`, `stage`, `attributes`) to use in `tags`.<br>Possible values: `lower`, `title`, `upper`.<br>Default value: `title`. | `string` | `null` | no |
 | <a name="input_label_order"></a> [label\_order](#input\_label\_order) | The naming order of the id output and Name tag.<br>Defaults to ["namespace", "environment", "stage", "name", "attributes"].<br>You can omit any of the 5 elements, but at least one must be present. | `list(string)` | `null` | no |
 | <a name="input_label_value_case"></a> [label\_value\_case](#input\_label\_value\_case) | The letter case of output label values (also used in `tags` and `id`).<br>Possible values: `lower`, `title`, `upper` and `none` (no transformation).<br>Default value: `lower`. | `string` | `null` | no |

docs/terraform.md

@@ -91,7 +91,7 @@
 | <a name="input_instance_count"></a> [instance\_count](#input\_instance\_count) | Number of data nodes in the cluster | `number` | `4` | no |
 | <a name="input_instance_type"></a> [instance\_type](#input\_instance\_type) | Elasticsearch instance type for data nodes in the cluster | `string` | `"t2.small.elasticsearch"` | no |
 | <a name="input_kibana_hostname_enabled"></a> [kibana\_hostname\_enabled](#input\_kibana\_hostname\_enabled) | Explicit flag to enable creating a DNS hostname for Kibana. If `true`, then `var.dns_zone_id` is required. | `bool` | `false` | no |
-| <a name="input_kibana_subdomain_name"></a> [kibana\_subdomain\_name](#input\_kibana\_subdomain\_name) | The name of the subdomain for Kibana in the DNS zone (\_e.g.\_ `kibana`, `ui`, `ui-es`, `search-ui`, `kibana.elasticsearch`) | `string` | n/a | yes |
+| <a name="input_kibana_subdomain_name"></a> [kibana\_subdomain\_name](#input\_kibana\_subdomain\_name) | The name of the subdomain for Kibana in the DNS zone (\_e.g.\_ `kibana`, `ui`, `ui-es`, `search-ui`, `kibana.elasticsearch`) | `string` | `""` | no |
 | <a name="input_label_key_case"></a> [label\_key\_case](#input\_label\_key\_case) | The letter case of label keys (`tag` names) (i.e. `name`, `namespace`, `environment`, `stage`, `attributes`) to use in `tags`.<br>Possible values: `lower`, `title`, `upper`.<br>Default value: `title`. | `string` | `null` | no |
 | <a name="input_label_order"></a> [label\_order](#input\_label\_order) | The naming order of the id output and Name tag.<br>Defaults to ["namespace", "environment", "stage", "name", "attributes"].<br>You can omit any of the 5 elements, but at least one must be present. | `list(string)` | `null` | no |
 | <a name="input_label_value_case"></a> [label\_value\_case](#input\_label\_value\_case) | The letter case of output label values (also used in `tags` and `id`).<br>Possible values: `lower`, `title`, `upper` and `none` (no transformation).<br>Default value: `lower`. | `string` | `null` | no |

variables.tf

@@ -241,6 +241,7 @@ variable "elasticsearch_subdomain_name" {
 
 variable "kibana_subdomain_name" {
   type        = string
+  default     = ""
   description = "The name of the subdomain for Kibana in the DNS zone (_e.g._ `kibana`, `ui`, `ui-es`, `search-ui`, `kibana.elasticsearch`)"
 }