Feat: Add Index Read/Write Values for Capacity and Target (#43)

* Add index values vars

* Add index value vars

* Auto Format

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

README.md

@@ -173,11 +173,17 @@ Available targets:
 | <a name="input_additional_tag_map"></a> [additional\_tag\_map](#input\_additional\_tag\_map) | Additional key-value pairs to add to each map in `tags_as_list_of_maps`. Not added to `tags` or `id`.<br>This is for some rare cases where resources want additional configuration of tags<br>and therefore take a list of maps with tag key, value, and additional configuration. | `map(string)` | `{}` | no |
 | <a name="input_attributes"></a> [attributes](#input\_attributes) | ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`,<br>in the order they appear in the list. New attributes are appended to the<br>end of the list. The elements of the list are joined by the `delimiter`<br>and treated as a single ID element. | `list(string)` | `[]` | no |
 | <a name="input_autoscale_max_read_capacity"></a> [autoscale\_max\_read\_capacity](#input\_autoscale\_max\_read\_capacity) | DynamoDB autoscaling max read capacity | `number` | `20` | no |
+| <a name="input_autoscale_max_read_capacity_index"></a> [autoscale\_max\_read\_capacity\_index](#input\_autoscale\_max\_read\_capacity\_index) | DynamoDB autoscaling max read capacity of the index | `number` | `null` | no |
 | <a name="input_autoscale_max_write_capacity"></a> [autoscale\_max\_write\_capacity](#input\_autoscale\_max\_write\_capacity) | DynamoDB autoscaling max write capacity | `number` | `20` | no |
+| <a name="input_autoscale_max_write_capacity_index"></a> [autoscale\_max\_write\_capacity\_index](#input\_autoscale\_max\_write\_capacity\_index) | DynamoDB autoscaling max write capacity of the index | `number` | `null` | no |
 | <a name="input_autoscale_min_read_capacity"></a> [autoscale\_min\_read\_capacity](#input\_autoscale\_min\_read\_capacity) | DynamoDB autoscaling min read capacity | `number` | `5` | no |
+| <a name="input_autoscale_min_read_capacity_index"></a> [autoscale\_min\_read\_capacity\_index](#input\_autoscale\_min\_read\_capacity\_index) | DynamoDB autoscaling min read capacity of the index | `number` | `null` | no |
 | <a name="input_autoscale_min_write_capacity"></a> [autoscale\_min\_write\_capacity](#input\_autoscale\_min\_write\_capacity) | DynamoDB autoscaling min write capacity | `number` | `5` | no |
+| <a name="input_autoscale_min_write_capacity_index"></a> [autoscale\_min\_write\_capacity\_index](#input\_autoscale\_min\_write\_capacity\_index) | DynamoDB autoscaling min write capacity of the index | `number` | `null` | no |
 | <a name="input_autoscale_read_target"></a> [autoscale\_read\_target](#input\_autoscale\_read\_target) | The target value for DynamoDB read autoscaling | `number` | `50` | no |
+| <a name="input_autoscale_read_target_index"></a> [autoscale\_read\_target\_index](#input\_autoscale\_read\_target\_index) | The target value for DynamoDB read autoscaling of the index | `number` | `null` | no |
 | <a name="input_autoscale_write_target"></a> [autoscale\_write\_target](#input\_autoscale\_write\_target) | The target value for DynamoDB write autoscaling | `number` | `50` | no |
+| <a name="input_autoscale_write_target_index"></a> [autoscale\_write\_target\_index](#input\_autoscale\_write\_target\_index) | The target value for DynamoDB write autoscaling of the index | `number` | `null` | no |
 | <a name="input_context"></a> [context](#input\_context) | Single object for setting entire context at once.<br>See description of individual variables for details.<br>Leave string and numeric variables as `null` to use default value.<br>Individual variable settings (non-null) override settings in context object,<br>except for attributes, tags, and additional\_tag\_map, which are merged. | `any` | <pre>{<br>  "additional_tag_map": {},<br>  "attributes": [],<br>  "delimiter": null,<br>  "descriptor_formats": {},<br>  "enabled": true,<br>  "environment": null,<br>  "id_length_limit": null,<br>  "label_key_case": null,<br>  "label_order": [],<br>  "label_value_case": null,<br>  "labels_as_tags": [<br>    "unset"<br>  ],<br>  "name": null,<br>  "namespace": null,<br>  "regex_replace_chars": null,<br>  "stage": null,<br>  "tags": {},<br>  "tenant": null<br>}</pre> | no |
 | <a name="input_delimiter"></a> [delimiter](#input\_delimiter) | Delimiter to be used between ID elements.<br>Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. | `string` | `null` | no |
 | <a name="input_descriptor_formats"></a> [descriptor\_formats](#input\_descriptor\_formats) | Describe additional descriptors to be output in the `descriptors` output map.<br>Map of maps. Keys are names of descriptors. Values are maps of the form<br>`{<br>   format = string<br>   labels = list(string)<br>}`<br>(Type is `any` so the map values can later be enhanced to provide additional options.)<br>`format` is a Terraform format string to be passed to the `format()` function.<br>`labels` is a list of labels, in order, to pass to `format()` function.<br>Label values will be normalized before being passed to `format()` so they will be<br>identical to how they appear in `id`.<br>Default is `{}` (`descriptors` output will be empty). | `any` | `{}` | no |

docs/terraform.md

@@ -39,11 +39,17 @@
 | <a name="input_additional_tag_map"></a> [additional\_tag\_map](#input\_additional\_tag\_map) | Additional key-value pairs to add to each map in `tags_as_list_of_maps`. Not added to `tags` or `id`.<br>This is for some rare cases where resources want additional configuration of tags<br>and therefore take a list of maps with tag key, value, and additional configuration. | `map(string)` | `{}` | no |
 | <a name="input_attributes"></a> [attributes](#input\_attributes) | ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`,<br>in the order they appear in the list. New attributes are appended to the<br>end of the list. The elements of the list are joined by the `delimiter`<br>and treated as a single ID element. | `list(string)` | `[]` | no |
 | <a name="input_autoscale_max_read_capacity"></a> [autoscale\_max\_read\_capacity](#input\_autoscale\_max\_read\_capacity) | DynamoDB autoscaling max read capacity | `number` | `20` | no |
+| <a name="input_autoscale_max_read_capacity_index"></a> [autoscale\_max\_read\_capacity\_index](#input\_autoscale\_max\_read\_capacity\_index) | DynamoDB autoscaling max read capacity of the index | `number` | `null` | no |
 | <a name="input_autoscale_max_write_capacity"></a> [autoscale\_max\_write\_capacity](#input\_autoscale\_max\_write\_capacity) | DynamoDB autoscaling max write capacity | `number` | `20` | no |
+| <a name="input_autoscale_max_write_capacity_index"></a> [autoscale\_max\_write\_capacity\_index](#input\_autoscale\_max\_write\_capacity\_index) | DynamoDB autoscaling max write capacity of the index | `number` | `null` | no |
 | <a name="input_autoscale_min_read_capacity"></a> [autoscale\_min\_read\_capacity](#input\_autoscale\_min\_read\_capacity) | DynamoDB autoscaling min read capacity | `number` | `5` | no |
+| <a name="input_autoscale_min_read_capacity_index"></a> [autoscale\_min\_read\_capacity\_index](#input\_autoscale\_min\_read\_capacity\_index) | DynamoDB autoscaling min read capacity of the index | `number` | `null` | no |
 | <a name="input_autoscale_min_write_capacity"></a> [autoscale\_min\_write\_capacity](#input\_autoscale\_min\_write\_capacity) | DynamoDB autoscaling min write capacity | `number` | `5` | no |
+| <a name="input_autoscale_min_write_capacity_index"></a> [autoscale\_min\_write\_capacity\_index](#input\_autoscale\_min\_write\_capacity\_index) | DynamoDB autoscaling min write capacity of the index | `number` | `null` | no |
 | <a name="input_autoscale_read_target"></a> [autoscale\_read\_target](#input\_autoscale\_read\_target) | The target value for DynamoDB read autoscaling | `number` | `50` | no |
+| <a name="input_autoscale_read_target_index"></a> [autoscale\_read\_target\_index](#input\_autoscale\_read\_target\_index) | The target value for DynamoDB read autoscaling of the index | `number` | `null` | no |
 | <a name="input_autoscale_write_target"></a> [autoscale\_write\_target](#input\_autoscale\_write\_target) | The target value for DynamoDB write autoscaling | `number` | `50` | no |
+| <a name="input_autoscale_write_target_index"></a> [autoscale\_write\_target\_index](#input\_autoscale\_write\_target\_index) | The target value for DynamoDB write autoscaling of the index | `number` | `null` | no |
 | <a name="input_context"></a> [context](#input\_context) | Single object for setting entire context at once.<br>See description of individual variables for details.<br>Leave string and numeric variables as `null` to use default value.<br>Individual variable settings (non-null) override settings in context object,<br>except for attributes, tags, and additional\_tag\_map, which are merged. | `any` | <pre>{<br>  "additional_tag_map": {},<br>  "attributes": [],<br>  "delimiter": null,<br>  "descriptor_formats": {},<br>  "enabled": true,<br>  "environment": null,<br>  "id_length_limit": null,<br>  "label_key_case": null,<br>  "label_order": [],<br>  "label_value_case": null,<br>  "labels_as_tags": [<br>    "unset"<br>  ],<br>  "name": null,<br>  "namespace": null,<br>  "regex_replace_chars": null,<br>  "stage": null,<br>  "tags": {},<br>  "tenant": null<br>}</pre> | no |
 | <a name="input_delimiter"></a> [delimiter](#input\_delimiter) | Delimiter to be used between ID elements.<br>Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. | `string` | `null` | no |
 | <a name="input_descriptor_formats"></a> [descriptor\_formats](#input\_descriptor\_formats) | Describe additional descriptors to be output in the `descriptors` output map.<br>Map of maps. Keys are names of descriptors. Values are maps of the form<br>`{<br>   format = string<br>   labels = list(string)<br>}`<br>(Type is `any` so the map values can later be enhanced to provide additional options.)<br>`format` is a Terraform format string to be passed to the `format()` function.<br>`labels` is a list of labels, in order, to pass to `format()` function.<br>Label values will be normalized before being passed to `format()` so they will be<br>identical to how they appear in `id`.<br>Default is `{}` (`descriptors` output will be empty). | `any` | `{}` | no |

main.tf

@@ -9,8 +9,8 @@ resource "aws_appautoscaling_target" "read_target" {
 
 resource "aws_appautoscaling_target" "read_target_index" {
   for_each           = module.this.enabled ? toset(var.dynamodb_indexes) : toset([])
-  max_capacity       = var.autoscale_max_read_capacity
-  min_capacity       = var.autoscale_min_read_capacity
+  max_capacity       = coalesce(var.autoscale_max_read_capacity_index, var.autoscale_max_read_capacity)
+  min_capacity       = coalesce(var.autoscale_min_read_capacity_index, var.autoscale_min_read_capacity)
   resource_id        = "table/${var.dynamodb_table_name}/index/${each.key}"
   scalable_dimension = "dynamodb:index:ReadCapacityUnits"
   service_namespace  = "dynamodb"
@@ -49,7 +49,7 @@ resource "aws_appautoscaling_policy" "read_policy_index" {
       predefined_metric_type = "DynamoDBReadCapacityUtilization"
     }
 
-    target_value = var.autoscale_read_target
+    target_value = coalesce(var.autoscale_read_target_index, var.autoscale_read_target)
   }
 }
 
@@ -64,8 +64,8 @@ resource "aws_appautoscaling_target" "write_target" {
 
 resource "aws_appautoscaling_target" "write_target_index" {
   for_each           = module.this.enabled ? toset(var.dynamodb_indexes) : toset([])
-  max_capacity       = var.autoscale_max_write_capacity
-  min_capacity       = var.autoscale_min_write_capacity
+  max_capacity       = coalesce(var.autoscale_max_write_capacity_index, var.autoscale_max_write_capacity)
+  min_capacity       = coalesce(var.autoscale_min_write_capacity_index, var.autoscale_min_write_capacity)
   resource_id        = "table/${var.dynamodb_table_name}/index/${each.key}"
   scalable_dimension = "dynamodb:index:WriteCapacityUnits"
   service_namespace  = "dynamodb"
@@ -104,6 +104,6 @@ resource "aws_appautoscaling_policy" "write_policy_index" {
       predefined_metric_type = "DynamoDBWriteCapacityUtilization"
     }
 
-    target_value = var.autoscale_write_target
+    target_value = coalesce(var.autoscale_write_target_index, var.autoscale_write_target)
   }
 }

variables.tf

@@ -49,3 +49,39 @@ variable "autoscale_max_write_capacity" {
   default     = 20
   description = "DynamoDB autoscaling max write capacity"
 }
+
+variable "autoscale_write_target_index" {
+  type        = number
+  default     = null
+  description = "The target value for DynamoDB write autoscaling of the index"
+}
+
+variable "autoscale_read_target_index" {
+  type        = number
+  default     = null
+  description = "The target value for DynamoDB read autoscaling of the index"
+}
+
+variable "autoscale_min_read_capacity_index" {
+  type        = number
+  default     = null
+  description = "DynamoDB autoscaling min read capacity of the index"
+}
+
+variable "autoscale_max_read_capacity_index" {
+  type        = number
+  default     = null
+  description = "DynamoDB autoscaling max read capacity of the index"
+}
+
+variable "autoscale_min_write_capacity_index" {
+  type        = number
+  default     = null
+  description = "DynamoDB autoscaling min write capacity of the index"
+}
+
+variable "autoscale_max_write_capacity_index" {
+  type        = number
+  default     = null
+  description = "DynamoDB autoscaling max write capacity of the index"
+}