minimum required Terraform version bumped to 0.13.0, context.tf updat…

…ed, readme updated (#24)

README.md

@@ -123,7 +123,7 @@ module "ecs_service_alarms" {
 
 | Name | Version |
 |------|---------|
-| terraform | >= 0.12.26 |
+| terraform | >= 0.13.0 |
 | aws | >= 2.0 |
 
 ## Providers
@@ -140,7 +140,7 @@ module "ecs_service_alarms" {
 | alarm\_description | The string to format and use as the alarm description. | `string` | `"Average service %v utilization %v last %d minute(s) over %v period(s)"` | no |
 | attributes | Additional attributes (e.g. `1`) | `list(string)` | `[]` | no |
 | cluster\_name | The name of the ECS cluster to monitor | `string` | n/a | yes |
-| 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. | <pre>object({<br>    enabled             = bool<br>    namespace           = string<br>    environment         = string<br>    stage               = string<br>    name                = string<br>    delimiter           = string<br>    attributes          = list(string)<br>    tags                = map(string)<br>    additional_tag_map  = map(string)<br>    regex_replace_chars = string<br>    label_order         = list(string)<br>    id_length_limit     = number<br>  })</pre> | <pre>{<br>  "additional_tag_map": {},<br>  "attributes": [],<br>  "delimiter": null,<br>  "enabled": true,<br>  "environment": null,<br>  "id_length_limit": null,<br>  "label_order": [],<br>  "name": null,<br>  "namespace": null,<br>  "regex_replace_chars": null,<br>  "stage": null,<br>  "tags": {}<br>}</pre> | no |
+| 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. | <pre>object({<br>    enabled             = bool<br>    namespace           = string<br>    environment         = string<br>    stage               = string<br>    name                = string<br>    delimiter           = string<br>    attributes          = list(string)<br>    tags                = map(string)<br>    additional_tag_map  = map(string)<br>    regex_replace_chars = string<br>    label_order         = list(string)<br>    id_length_limit     = number<br>    label_key_case      = string<br>    label_value_case    = string<br>  })</pre> | <pre>{<br>  "additional_tag_map": {},<br>  "attributes": [],<br>  "delimiter": null,<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>  "name": null,<br>  "namespace": null,<br>  "regex_replace_chars": null,<br>  "stage": null,<br>  "tags": {}<br>}</pre> | no |
 | cpu\_utilization\_high\_alarm\_actions | A list of ARNs (i.e. SNS Topic ARN) to notify on CPU Utilization High Alarm action | `list(string)` | `[]` | no |
 | cpu\_utilization\_high\_evaluation\_periods | Number of periods to evaluate for the alarm | `number` | `1` | no |
 | cpu\_utilization\_high\_ok\_actions | A list of ARNs (i.e. SNS Topic ARN) to notify on CPU Utilization High OK action | `list(string)` | `[]` | no |
@@ -155,7 +155,9 @@ module "ecs_service_alarms" {
 | enabled | Set to false to prevent the module from creating any resources | `bool` | `null` | no |
 | environment | Environment, e.g. 'uw2', 'us-west-2', OR 'prod', 'staging', 'dev', 'UAT' | `string` | `null` | no |
 | id\_length\_limit | Limit `id` to this many characters.<br>Set to `0` for unlimited length.<br>Set to `null` for default, which is `0`.<br>Does not affect `id_full`. | `number` | `null` | no |
+| 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 |
 | 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 |
+| 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 |
 | memory\_utilization\_high\_alarm\_actions | A list of ARNs (i.e. SNS Topic ARN) to notify on Memory Utilization High Alarm action | `list(string)` | `[]` | no |
 | memory\_utilization\_high\_evaluation\_periods | Number of periods to evaluate for the alarm | `number` | `1` | no |
 | memory\_utilization\_high\_ok\_actions | A list of ARNs (i.e. SNS Topic ARN) to notify on Memory Utilization High OK action | `list(string)` | `[]` | no |

context.tf

@@ -20,7 +20,7 @@
 
 module "this" {
   source  = "cloudposse/label/null"
-  version = "0.22.1" // requires Terraform >= 0.12.26
+  version = "0.23.0" // requires Terraform >= 0.13.0
 
   enabled             = var.enabled
   namespace           = var.namespace
@@ -54,6 +54,8 @@ variable "context" {
     regex_replace_chars = string
     label_order         = list(string)
     id_length_limit     = number
+    label_key_case      = string
+    label_value_case    = string
   })
   default = {
     enabled             = true
@@ -68,6 +70,8 @@ variable "context" {
     regex_replace_chars = null
     label_order         = []
     id_length_limit     = null
+    label_key_case      = null
+    label_value_case    = null
   }
   description = <<-EOT
     Single object for setting entire context at once.
@@ -76,6 +80,16 @@ variable "context" {
     Individual variable settings (non-null) override settings in context object,
     except for attributes, tags, and additional_tag_map, which are merged.
   EOT
+
+  validation {
+    condition     = var.context["label_key_case"] == null ? true : contains(["lower", "title", "upper"], var.context["label_key_case"])
+    error_message = "Allowed values: `lower`, `title`, `upper`."
+  }
+
+  validation {
+    condition     = var.context["label_value_case"] == null ? true : contains(["lower", "title", "upper", "none"], var.context["label_value_case"])
+    error_message = "Allowed values: `lower`, `title`, `upper`, `none`."
+  }
 }
 
 variable "enabled" {
@@ -165,4 +179,33 @@ variable "id_length_limit" {
   EOT
 }
 
+variable "label_key_case" {
+  type        = string
+  default     = null
+  description = <<-EOT
+    The letter case of label keys (`tag` names) (i.e. `name`, `namespace`, `environment`, `stage`, `attributes`) to use in `tags`.
+    Possible values: `lower`, `title`, `upper`. 
+    Default value: `title`.
+  EOT
+
+  validation {
+    condition     = var.label_key_case == null ? true : contains(["lower", "title", "upper"], var.label_key_case)
+    error_message = "Allowed values: `lower`, `title`, `upper`."
+  }
+}
+
+variable "label_value_case" {
+  type        = string
+  default     = null
+  description = <<-EOT
+    The letter case of output label values (also used in `tags` and `id`).
+    Possible values: `lower`, `title`, `upper` and `none` (no transformation). 
+    Default value: `lower`.
+  EOT
+
+  validation {
+    condition     = var.label_value_case == null ? true : contains(["lower", "title", "upper", "none"], var.label_value_case)
+    error_message = "Allowed values: `lower`, `title`, `upper`, `none`."
+  }
+}
 #### End of copy of cloudposse/terraform-null-label/variables.tf

docs/terraform.md

@@ -3,7 +3,7 @@
 
 | Name | Version |
 |------|---------|
-| terraform | >= 0.12.26 |
+| terraform | >= 0.13.0 |
 | aws | >= 2.0 |
 
 ## Providers
@@ -20,7 +20,7 @@
 | alarm\_description | The string to format and use as the alarm description. | `string` | `"Average service %v utilization %v last %d minute(s) over %v period(s)"` | no |
 | attributes | Additional attributes (e.g. `1`) | `list(string)` | `[]` | no |
 | cluster\_name | The name of the ECS cluster to monitor | `string` | n/a | yes |
-| 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. | <pre>object({<br>    enabled             = bool<br>    namespace           = string<br>    environment         = string<br>    stage               = string<br>    name                = string<br>    delimiter           = string<br>    attributes          = list(string)<br>    tags                = map(string)<br>    additional_tag_map  = map(string)<br>    regex_replace_chars = string<br>    label_order         = list(string)<br>    id_length_limit     = number<br>  })</pre> | <pre>{<br>  "additional_tag_map": {},<br>  "attributes": [],<br>  "delimiter": null,<br>  "enabled": true,<br>  "environment": null,<br>  "id_length_limit": null,<br>  "label_order": [],<br>  "name": null,<br>  "namespace": null,<br>  "regex_replace_chars": null,<br>  "stage": null,<br>  "tags": {}<br>}</pre> | no |
+| 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. | <pre>object({<br>    enabled             = bool<br>    namespace           = string<br>    environment         = string<br>    stage               = string<br>    name                = string<br>    delimiter           = string<br>    attributes          = list(string)<br>    tags                = map(string)<br>    additional_tag_map  = map(string)<br>    regex_replace_chars = string<br>    label_order         = list(string)<br>    id_length_limit     = number<br>    label_key_case      = string<br>    label_value_case    = string<br>  })</pre> | <pre>{<br>  "additional_tag_map": {},<br>  "attributes": [],<br>  "delimiter": null,<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>  "name": null,<br>  "namespace": null,<br>  "regex_replace_chars": null,<br>  "stage": null,<br>  "tags": {}<br>}</pre> | no |
 | cpu\_utilization\_high\_alarm\_actions | A list of ARNs (i.e. SNS Topic ARN) to notify on CPU Utilization High Alarm action | `list(string)` | `[]` | no |
 | cpu\_utilization\_high\_evaluation\_periods | Number of periods to evaluate for the alarm | `number` | `1` | no |
 | cpu\_utilization\_high\_ok\_actions | A list of ARNs (i.e. SNS Topic ARN) to notify on CPU Utilization High OK action | `list(string)` | `[]` | no |
@@ -35,7 +35,9 @@
 | enabled | Set to false to prevent the module from creating any resources | `bool` | `null` | no |
 | environment | Environment, e.g. 'uw2', 'us-west-2', OR 'prod', 'staging', 'dev', 'UAT' | `string` | `null` | no |
 | id\_length\_limit | Limit `id` to this many characters.<br>Set to `0` for unlimited length.<br>Set to `null` for default, which is `0`.<br>Does not affect `id_full`. | `number` | `null` | no |
+| 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 |
 | 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 |
+| 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 |
 | memory\_utilization\_high\_alarm\_actions | A list of ARNs (i.e. SNS Topic ARN) to notify on Memory Utilization High Alarm action | `list(string)` | `[]` | no |
 | memory\_utilization\_high\_evaluation\_periods | Number of periods to evaluate for the alarm | `number` | `1` | no |
 | memory\_utilization\_high\_ok\_actions | A list of ARNs (i.e. SNS Topic ARN) to notify on Memory Utilization High OK action | `list(string)` | `[]` | no |

examples/complete/context.tf

@@ -20,7 +20,7 @@
 
 module "this" {
   source  = "cloudposse/label/null"
-  version = "0.22.1" // requires Terraform >= 0.12.26
+  version = "0.23.0" // requires Terraform >= 0.13.0
 
   enabled             = var.enabled
   namespace           = var.namespace
@@ -54,6 +54,8 @@ variable "context" {
     regex_replace_chars = string
     label_order         = list(string)
     id_length_limit     = number
+    label_key_case      = string
+    label_value_case    = string
   })
   default = {
     enabled             = true
@@ -68,6 +70,8 @@ variable "context" {
     regex_replace_chars = null
     label_order         = []
     id_length_limit     = null
+    label_key_case      = null
+    label_value_case    = null
   }
   description = <<-EOT
     Single object for setting entire context at once.
@@ -76,6 +80,16 @@ variable "context" {
     Individual variable settings (non-null) override settings in context object,
     except for attributes, tags, and additional_tag_map, which are merged.
   EOT
+
+  validation {
+    condition     = var.context["label_key_case"] == null ? true : contains(["lower", "title", "upper"], var.context["label_key_case"])
+    error_message = "Allowed values: `lower`, `title`, `upper`."
+  }
+
+  validation {
+    condition     = var.context["label_value_case"] == null ? true : contains(["lower", "title", "upper", "none"], var.context["label_value_case"])
+    error_message = "Allowed values: `lower`, `title`, `upper`, `none`."
+  }
 }
 
 variable "enabled" {
@@ -165,4 +179,33 @@ variable "id_length_limit" {
   EOT
 }
 
+variable "label_key_case" {
+  type        = string
+  default     = null
+  description = <<-EOT
+    The letter case of label keys (`tag` names) (i.e. `name`, `namespace`, `environment`, `stage`, `attributes`) to use in `tags`.
+    Possible values: `lower`, `title`, `upper`. 
+    Default value: `title`.
+  EOT
+
+  validation {
+    condition     = var.label_key_case == null ? true : contains(["lower", "title", "upper"], var.label_key_case)
+    error_message = "Allowed values: `lower`, `title`, `upper`."
+  }
+}
+
+variable "label_value_case" {
+  type        = string
+  default     = null
+  description = <<-EOT
+    The letter case of output label values (also used in `tags` and `id`).
+    Possible values: `lower`, `title`, `upper` and `none` (no transformation). 
+    Default value: `lower`.
+  EOT
+
+  validation {
+    condition     = var.label_value_case == null ? true : contains(["lower", "title", "upper", "none"], var.label_value_case)
+    error_message = "Allowed values: `lower`, `title`, `upper`, `none`."
+  }
+}
 #### End of copy of cloudposse/terraform-null-label/variables.tf

examples/complete/versions.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = ">= 0.12.26"
+  required_version = ">= 0.13.0"
   required_providers {
     aws = {
       source  = "hashicorp/aws"

versions.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = ">= 0.12.26"
+  required_version = ">= 0.13.0"
   required_providers {
     aws = {
       source  = "hashicorp/aws"