Update context.tf

README.md

@@ -224,7 +224,7 @@ Available targets:
 | cluster\_name | The name of the EKS cluster | `string` | n/a | yes |
 | cluster\_security\_group\_id | Security Group ID of the EKS cluster | `string` | n/a | yes |
 | cluster\_security\_group\_ingress\_enabled | Whether to enable the EKS cluster Security Group as ingress to workers Security Group | `bool` | `true` | 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 |
+| 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>  "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\_evaluation\_periods | The number of periods over which data is compared to the specified threshold | `number` | `2` | no |
 | cpu\_utilization\_high\_period\_seconds | The period in seconds over which the specified statistic is applied | `number` | `300` | no |
 | cpu\_utilization\_high\_statistic | The statistic to apply to the alarm's associated metric. Either of the following is supported: `SampleCount`, `Average`, `Sum`, `Minimum`, `Maximum` | `string` | `"Average"` | no |
@@ -248,16 +248,16 @@ Available targets:
 | force\_delete | Allows deleting the autoscaling group without waiting for all instances in the pool to terminate. You can force an autoscaling group to delete even if it's in the process of scaling a resource. Normally, Terraform drains all the instances before deleting the group. This bypasses that behavior and potentially leaves resources dangling | `bool` | `false` | no |
 | health\_check\_grace\_period | Time (in seconds) after instance comes into service before checking health | `number` | `300` | no |
 | health\_check\_type | Controls how health checking is done. Valid values are `EC2` or `ELB` | `string` | `"EC2"` | 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 |
+| id\_length\_limit | Limit `id` to this many characters (minimum 6).<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 |
 | image\_id | EC2 image ID to launch. If not provided, the module will lookup the most recent EKS AMI. See https://docs.aws.amazon.com/eks/latest/userguide/eks-optimized-ami.html for more details on EKS-optimized images | `string` | `""` | no |
 | instance\_initiated\_shutdown\_behavior | Shutdown behavior for the instances. Can be `stop` or `terminate` | `string` | `"terminate"` | no |
 | instance\_market\_options | The market (purchasing) option for the instances | <pre>object({<br>    market_type = string<br>    spot_options = object({<br>      block_duration_minutes         = number<br>      instance_interruption_behavior = string<br>      max_price                      = number<br>      spot_instance_type             = string<br>      valid_until                    = string<br>    })<br>  })</pre> | `null` | no |
 | instance\_type | Instance type to launch | `string` | n/a | yes |
 | key\_name | SSH key name that should be used for the instance | `string` | `""` | no |
 | kubelet\_extra\_args | Extra arguments to pass to kubelet, like "--register-with-taints=dedicated=ci-cd:NoSchedule --node-labels=purpose=ci-worker" | `string` | `""` | 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\_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 |
+| 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 |
 | load\_balancers | A list of elastic load balancer names to add to the autoscaling group. Only valid for classic load balancers. For ALBs, use `target_group_arns` instead | `list(string)` | `[]` | no |
 | max\_size | The maximum size of the autoscale group | `number` | n/a | yes |
 | metrics\_granularity | The granularity to associate with the metrics to collect. The only valid value is 1Minute | `string` | `"1Minute"` | no |

context.tf

@@ -20,7 +20,7 @@
 
 module "this" {
   source  = "cloudposse/label/null"
-  version = "0.23.0" // requires Terraform >= 0.13.0
+  version = "0.24.1" # requires Terraform >= 0.13.0
 
   enabled             = var.enabled
   namespace           = var.namespace
@@ -34,29 +34,16 @@ module "this" {
   label_order         = var.label_order
   regex_replace_chars = var.regex_replace_chars
   id_length_limit     = var.id_length_limit
+  label_key_case      = var.label_key_case
+  label_value_case    = var.label_value_case
 
   context = var.context
 }
 
 # Copy contents of cloudposse/terraform-null-label/variables.tf here
 
 variable "context" {
-  type = object({
-    enabled             = bool
-    namespace           = string
-    environment         = string
-    stage               = string
-    name                = string
-    delimiter           = string
-    attributes          = list(string)
-    tags                = map(string)
-    additional_tag_map  = map(string)
-    regex_replace_chars = string
-    label_order         = list(string)
-    id_length_limit     = number
-    label_key_case      = string
-    label_value_case    = string
-  })
+  type = any
   default = {
     enabled             = true
     namespace           = null
@@ -82,12 +69,12 @@ variable "context" {
   EOT
 
   validation {
-    condition     = var.context["label_key_case"] == null ? true : contains(["lower", "title", "upper"], var.context["label_key_case"])
+    condition     = lookup(var.context, "label_key_case", null) == 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"])
+    condition     = lookup(var.context, "label_value_case", null) == null ? true : contains(["lower", "title", "upper", "none"], var.context["label_value_case"])
     error_message = "Allowed values: `lower`, `title`, `upper`, `none`."
   }
 }
@@ -172,19 +159,23 @@ variable "id_length_limit" {
   type        = number
   default     = null
   description = <<-EOT
-    Limit `id` to this many characters.
+    Limit `id` to this many characters (minimum 6).
     Set to `0` for unlimited length.
     Set to `null` for default, which is `0`.
     Does not affect `id_full`.
   EOT
+  validation {
+    condition     = var.id_length_limit == null ? true : var.id_length_limit >= 6 || var.id_length_limit == 0
+    error_message = "The id_length_limit must be >= 6 if supplied (not null), or 0 for unlimited length."
+  }
 }
 
 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`. 
+    Possible values: `lower`, `title`, `upper`.
     Default value: `title`.
   EOT
 
@@ -199,7 +190,7 @@ variable "label_value_case" {
   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). 
+    Possible values: `lower`, `title`, `upper` and `none` (no transformation).
     Default value: `lower`.
   EOT
 

docs/terraform.md

@@ -36,7 +36,7 @@
 | cluster\_name | The name of the EKS cluster | `string` | n/a | yes |
 | cluster\_security\_group\_id | Security Group ID of the EKS cluster | `string` | n/a | yes |
 | cluster\_security\_group\_ingress\_enabled | Whether to enable the EKS cluster Security Group as ingress to workers Security Group | `bool` | `true` | 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 |
+| 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>  "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\_evaluation\_periods | The number of periods over which data is compared to the specified threshold | `number` | `2` | no |
 | cpu\_utilization\_high\_period\_seconds | The period in seconds over which the specified statistic is applied | `number` | `300` | no |
 | cpu\_utilization\_high\_statistic | The statistic to apply to the alarm's associated metric. Either of the following is supported: `SampleCount`, `Average`, `Sum`, `Minimum`, `Maximum` | `string` | `"Average"` | no |
@@ -60,16 +60,16 @@
 | force\_delete | Allows deleting the autoscaling group without waiting for all instances in the pool to terminate. You can force an autoscaling group to delete even if it's in the process of scaling a resource. Normally, Terraform drains all the instances before deleting the group. This bypasses that behavior and potentially leaves resources dangling | `bool` | `false` | no |
 | health\_check\_grace\_period | Time (in seconds) after instance comes into service before checking health | `number` | `300` | no |
 | health\_check\_type | Controls how health checking is done. Valid values are `EC2` or `ELB` | `string` | `"EC2"` | 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 |
+| id\_length\_limit | Limit `id` to this many characters (minimum 6).<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 |
 | image\_id | EC2 image ID to launch. If not provided, the module will lookup the most recent EKS AMI. See https://docs.aws.amazon.com/eks/latest/userguide/eks-optimized-ami.html for more details on EKS-optimized images | `string` | `""` | no |
 | instance\_initiated\_shutdown\_behavior | Shutdown behavior for the instances. Can be `stop` or `terminate` | `string` | `"terminate"` | no |
 | instance\_market\_options | The market (purchasing) option for the instances | <pre>object({<br>    market_type = string<br>    spot_options = object({<br>      block_duration_minutes         = number<br>      instance_interruption_behavior = string<br>      max_price                      = number<br>      spot_instance_type             = string<br>      valid_until                    = string<br>    })<br>  })</pre> | `null` | no |
 | instance\_type | Instance type to launch | `string` | n/a | yes |
 | key\_name | SSH key name that should be used for the instance | `string` | `""` | no |
 | kubelet\_extra\_args | Extra arguments to pass to kubelet, like "--register-with-taints=dedicated=ci-cd:NoSchedule --node-labels=purpose=ci-worker" | `string` | `""` | 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\_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 |
+| 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 |
 | load\_balancers | A list of elastic load balancer names to add to the autoscaling group. Only valid for classic load balancers. For ALBs, use `target_group_arns` instead | `list(string)` | `[]` | no |
 | max\_size | The maximum size of the autoscale group | `number` | n/a | yes |
 | metrics\_granularity | The granularity to associate with the metrics to collect. The only valid value is 1Minute | `string` | `"1Minute"` | no |

examples/complete/context.tf

@@ -20,7 +20,7 @@
 
 module "this" {
   source  = "cloudposse/label/null"
-  version = "0.23.0" // requires Terraform >= 0.13.0
+  version = "0.24.1" # requires Terraform >= 0.13.0
 
   enabled             = var.enabled
   namespace           = var.namespace
@@ -34,29 +34,16 @@ module "this" {
   label_order         = var.label_order
   regex_replace_chars = var.regex_replace_chars
   id_length_limit     = var.id_length_limit
+  label_key_case      = var.label_key_case
+  label_value_case    = var.label_value_case
 
   context = var.context
 }
 
 # Copy contents of cloudposse/terraform-null-label/variables.tf here
 
 variable "context" {
-  type = object({
-    enabled             = bool
-    namespace           = string
-    environment         = string
-    stage               = string
-    name                = string
-    delimiter           = string
-    attributes          = list(string)
-    tags                = map(string)
-    additional_tag_map  = map(string)
-    regex_replace_chars = string
-    label_order         = list(string)
-    id_length_limit     = number
-    label_key_case      = string
-    label_value_case    = string
-  })
+  type = any
   default = {
     enabled             = true
     namespace           = null
@@ -82,12 +69,12 @@ variable "context" {
   EOT
 
   validation {
-    condition     = var.context["label_key_case"] == null ? true : contains(["lower", "title", "upper"], var.context["label_key_case"])
+    condition     = lookup(var.context, "label_key_case", null) == 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"])
+    condition     = lookup(var.context, "label_value_case", null) == null ? true : contains(["lower", "title", "upper", "none"], var.context["label_value_case"])
     error_message = "Allowed values: `lower`, `title`, `upper`, `none`."
   }
 }
@@ -172,19 +159,23 @@ variable "id_length_limit" {
   type        = number
   default     = null
   description = <<-EOT
-    Limit `id` to this many characters.
+    Limit `id` to this many characters (minimum 6).
     Set to `0` for unlimited length.
     Set to `null` for default, which is `0`.
     Does not affect `id_full`.
   EOT
+  validation {
+    condition     = var.id_length_limit == null ? true : var.id_length_limit >= 6 || var.id_length_limit == 0
+    error_message = "The id_length_limit must be >= 6 if supplied (not null), or 0 for unlimited length."
+  }
 }
 
 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`. 
+    Possible values: `lower`, `title`, `upper`.
     Default value: `title`.
   EOT
 
@@ -199,7 +190,7 @@ variable "label_value_case" {
   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). 
+    Possible values: `lower`, `title`, `upper` and `none` (no transformation).
     Default value: `lower`.
   EOT