feat(label): Expose variable "regex_replace_chars" to allow changing …

…label module behaviour (#34)

README.md

@@ -100,6 +100,7 @@ Available targets:
 | namespace | Namespace (e.g. `eg` or `cp`) | string | `` | no |
 | principals_full_access | Principal ARNs to provide with full access to the ECR | list(string) | `<list>` | no |
 | principals_readonly_access | Principal ARNs to provide with readonly access to the ECR | list(string) | `<list>` | no |
+| regex_replace_chars | Regex to replace chars with empty string in `namespace`, `environment`, `stage` and `name`. By default only hyphens, letters and digits are allowed, all other chars are removed | string | `/[^a-zA-Z0-9-]/` | no |
 | scan_images_on_push | Indicates whether images are scanned after being pushed to the repository (true) or not (false) | bool | `false` | no |
 | stage | Stage (e.g. `prod`, `dev`, `staging`) | string | `` | no |
 | tags | Additional tags (e.g. `map('BusinessUnit','XYZ')`) | map(string) | `<map>` | no |

docs/terraform.md

@@ -10,6 +10,7 @@
 | namespace | Namespace (e.g. `eg` or `cp`) | string | `` | no |
 | principals_full_access | Principal ARNs to provide with full access to the ECR | list(string) | `<list>` | no |
 | principals_readonly_access | Principal ARNs to provide with readonly access to the ECR | list(string) | `<list>` | no |
+| regex_replace_chars | Regex to replace chars with empty string in `namespace`, `environment`, `stage` and `name`. By default only hyphens, letters and digits are allowed, all other chars are removed | string | `/[^a-zA-Z0-9-]/` | no |
 | scan_images_on_push | Indicates whether images are scanned after being pushed to the repository (true) or not (false) | bool | `false` | no |
 | stage | Stage (e.g. `prod`, `dev`, `staging`) | string | `` | no |
 | tags | Additional tags (e.g. `map('BusinessUnit','XYZ')`) | map(string) | `<map>` | no |

main.tf

@@ -5,14 +5,15 @@ locals {
 }
 
 module "label" {
-  source     = "git::https://github.com/cloudposse/terraform-null-label.git?ref=tags/0.16.0"
-  enabled    = var.enabled
-  namespace  = var.namespace
-  stage      = var.stage
-  name       = var.name
-  delimiter  = var.delimiter
-  attributes = var.attributes
-  tags       = var.tags
+  source              = "git::https://github.com/cloudposse/terraform-null-label.git?ref=tags/0.16.0"
+  enabled             = var.enabled
+  namespace           = var.namespace
+  stage               = var.stage
+  name                = var.name
+  delimiter           = var.delimiter
+  attributes          = var.attributes
+  tags                = var.tags
+  regex_replace_chars = var.regex_replace_chars
 }
 
 resource "aws_ecr_repository" "default" {

variables.tf

@@ -67,3 +67,10 @@ variable "max_image_count" {
   description = "How many Docker Image versions AWS ECR will store"
   default     = 500
 }
+
+variable "regex_replace_chars" {
+  type        = string
+  default     = "/[^a-zA-Z0-9-]/"
+  description = "Regex to replace chars with empty string in `namespace`, `environment`, `stage` and `name`. By default only hyphens, letters and digits are allowed, all other chars are removed"
+}
+