Feature (#4)

* Added Readme and gitignore.

* Renames acm_domain_name to acm_certificate_name to reflect the actual function of the variable.

* Updates the documentation.

* Formats the file.

* Corrected variable names to be used effectively.

Author: DJKaswa

.gitignore

@@ -11,6 +11,8 @@
 # TF Plans
 **/plans
 
-# Mac specific
+# Certs
+*.pem
+
 .idea
 .DS_Store

README.md

@@ -1,15 +1,44 @@
 # ACM Certificate Creation
-This repo is used to create a certificate using DNS validation. It requires:
-- That there be a hosted zone which the IAM principal creating the resource has access to
+```
+This repo is used to create a certificate using Route53 DNS validation. It requires a hosted zone to which the IAM 
+principal creating the resource has access.
+```
 
 ### Example Usage:
 ```
-module "resource_certificate" {
-  source     = "StratusGrid/acm-certificate-creation/aws"
-  version    = "1.0.0"
-  # source   = "github.com/StratusGrid/terraform-aws-acm-certificate-creation"
-  acm_domain_name  = "host.my.domain.com"
-  hosted_zone_name = "my.domain.com"
-  input_tags = merge(local.common_tags, {})
+# Variables definition
+
+variable "acm_certificate_name" {
+  description = "Certificate name prefix which will be trailed by the hosted-zone name"
+  type = list(string)
+}
+
+variable "hosted_zone_name" {
+  description = "Route53 hosted zone name"
+  type        = string
+}
+
+acm_certificate_name  = ["engineering", "sales"]
+hosted_zone_name      = "example.com"
+```
+```
+data "aws_route53_zone" "hosted_zone_id" {
+  name = var.hosted_zone_name
+  private_zone = false
 }
 ```
+```
+# Module call
+
+module "new_record_and_certificate" {
+  source = "github.com/StratusGrid/terraform-aws-acm-certificate-creation"
+  
+  for_each        = toset(var.acm_certificate_name)
+  acm_domain_name = "${each.key}.${var.hosted_zone_name}"
+  zone_id         = data.aws_route53_zone.hosted_zone_id.zone_id
+  
+  input_tags      = {
+    "Name" = "${each.key}.${var.hosted_zone_name}"
+    }
+}
+```

main.tf

@@ -10,7 +10,7 @@ resource "aws_acm_certificate" "acm_module_certificate" {
   }
 }
 
-# Route53 record creation
+# Route53 domain record validation
 resource "aws_route53_record" "domain_validation_record" {
   for_each = {
     for dvo in aws_acm_certificate.acm_module_certificate.domain_validation_options : dvo.domain_name => {
@@ -32,4 +32,4 @@ resource "aws_route53_record" "domain_validation_record" {
 resource "aws_acm_certificate_validation" "acm_module_cert_validation" {
   certificate_arn         = aws_acm_certificate.acm_module_certificate.arn
   validation_record_fqdns = [for record in aws_route53_record.domain_validation_record : record.fqdn]
-}
+}