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Terraform module to request an ACM certificate for a domain and add a CNAME record to the DNS zone to complete certificate validation

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Usage

This example will request an SSL certificate for example.com domain

module "acm_request_certificate" {
  source = "cloudposse/acm-request-certificate/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version = "x.x.x"
  domain_name                       = "example.com"
  process_domain_validation_options = true
  ttl                               = "300"
}

This example will request an SSL certificate for example.com domain and all its subdomains *.example.com

module "acm_request_certificate" {
  source = "cloudposse/acm-request-certificate/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version = "x.x.x"
  domain_name                       = "example.com"
  process_domain_validation_options = true
  ttl                               = "300"
  subject_alternative_names         = ["*.example.com"]
}

[!IMPORTANT] In Cloud Posse's examples, we avoid pinning modules to specific versions to prevent discrepancies between the documentation and the latest released versions. However, for your own projects, we strongly advise pinning each module to the exact version you're using. This practice ensures the stability of your infrastructure. Additionally, we recommend implementing a systematic approach for updating versions to avoid unexpected changes.

Makefile Targets

Available targets:

  help                                Help screen
  help/all                            Display help for all targets
  help/short                          This help short screen
  lint                                Lint terraform code

Requirements

Name	Version
<a name="requirement_terraform"></a> terraform	>= 0.14
<a name="requirement_aws"></a> aws	>= 4.40

Providers

Name	Version
<a name="provider_aws"></a> aws	>= 4.40

Modules

Name	Source	Version
<a name="module_this"></a> this	cloudposse/label/null	0.25.0

Resources

Name	Type
aws_acm_certificate.default	resource
aws_acm_certificate_validation.default	resource
aws_route53_record.default	resource
aws_route53_zone.default	data source

Inputs

Name	Description	Type	Default	Required
<a name="input_additional_tag_map"></a> 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	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_certificate_authority_arn"></a> certificate_authority_arn	ARN of an ACM PCA	`string`	`null`	no
<a name="input_certificate_transparency_logging_preference"></a> certificate_transparency_logging_preference	Specifies whether certificate details should be added to a certificate transparency log	`bool`	`true`	no
<a name="input_context"></a> 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	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	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
<a name="input_domain_name"></a> domain_name	A domain name for which the certificate should be issued	`string`	n/a	yes
<a name="input_enabled"></a> enabled	Set to false to prevent the module from creating any resources	`bool`	`null`	no
<a name="input_environment"></a> environment	ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT'	`string`	`null`	no
<a name="input_id_length_limit"></a> id_length_limit	Limit `id` to this many characters (minimum 6).<br>Set to `0` for unlimited length.<br>Set to `null` for keep the existing setting, which defaults to `0`.<br>Does not affect `id_full`.	`number`	`null`	no
<a name="input_key_algorithm"></a> key_algorithm	Specifies the algorithm of the public and private key pair that your Amazon issued certificate uses to encrypt data	`string`	`null`	no
<a name="input_label_key_case"></a> label_key_case	Controls the letter case of the `tags` keys (label names) for tags generated by this module.<br>Does not affect keys of tags passed in via the `tags` input.<br>Possible values: `lower`, `title`, `upper`.<br>Default value: `title`.	`string`	`null`	no
<a name="input_label_order"></a> label_order	The order in which the labels (ID elements) appear in the `id`.<br>Defaults to ["namespace", "environment", "stage", "name", "attributes"].<br>You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present.	`list(string)`	`null`	no
<a name="input_label_value_case"></a> label_value_case	Controls the letter case of ID elements (labels) as included in `id`,<br>set as tag values, and output by this module individually.<br>Does not affect values of tags passed in via the `tags` input.<br>Possible values: `lower`, `title`, `upper` and `none` (no transformation).<br>Set this to `title` and set `delimiter` to `""` to yield Pascal Case IDs.<br>Default value: `lower`.	`string`	`null`	no
<a name="input_labels_as_tags"></a> labels_as_tags	Set of labels (ID elements) to include as tags in the `tags` output.<br>Default is to include all labels.<br>Tags with empty values will not be included in the `tags` output.<br>Set to `[]` to suppress all generated tags.<br>Notes:<br> The value of the `name` tag, if included, will be the `id`, not the `name`.<br> Unlike other `null-label` inputs, the initial setting of `labels_as_tags` cannot be<br> changed in later chained modules. Attempts to change it will be silently ignored.	`set(string)`	<pre>[<br> "default"<br>]</pre>	no
<a name="input_name"></a> name	ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'.<br>This is the only ID element not also included as a `tag`.<br>The "name" tag is set to the full `id` string. There is no tag with the value of the `name` input.	`string`	`null`	no
<a name="input_namespace"></a> namespace	ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique	`string`	`null`	no
<a name="input_process_domain_validation_options"></a> process_domain_validation_options	Flag to enable/disable processing of the record to add to the DNS zone to complete certificate validation	`bool`	`true`	no
<a name="input_regex_replace_chars"></a> regex_replace_chars	Terraform regular expression (regex) string.<br>Characters matching the regex will be removed from the ID elements.<br>If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits.	`string`	`null`	no
<a name="input_stage"></a> stage	ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release'	`string`	`null`	no
<a name="input_subject_alternative_names"></a> subject_alternative_names	A list of domains that should be SANs in the issued certificate	`list(string)`	`[]`	no
<a name="input_tags"></a> tags	Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`).<br>Neither the tag keys nor the tag values will be modified by this module.	`map(string)`	`{}`	no
<a name="input_tenant"></a> tenant	ID element _(Rarely used, not included by default)_. A customer identifier, indicating who this instance of a resource is for	`string`	`null`	no
<a name="input_ttl"></a> ttl	The TTL of the record to add to the DNS zone to complete certificate validation	`string`	`"300"`	no
<a name="input_validation_method"></a> validation_method	Method to use for validation, DNS or EMAIL	`string`	`"DNS"`	no
<a name="input_wait_for_certificate_issued"></a> wait_for_certificate_issued	Whether to wait for the certificate to be issued by ACM (the certificate status changed from `Pending Validation` to `Issued`)	`bool`	`false`	no
<a name="input_zone_id"></a> zone_id	The zone id of the Route53 Hosted Zone which can be used instead of `var.zone_name`.	`string`	`null`	no
<a name="input_zone_name"></a> zone_name	The name of the desired Route53 Hosted Zone	`string`	`""`	no

Outputs

Name	Description
<a name="output_arn"></a> arn	The ARN of the certificate
<a name="output_domain_validation_options"></a> domain_validation_options	CNAME records that are added to the DNS zone to complete certificate validation
<a name="output_id"></a> id	The ID of the certificate
<a name="output_validation_certificate_arn"></a> validation_certificate_arn	Certificate ARN from the `aws_acm_certificate_validation` resource
<a name="output_validation_id"></a> validation_id	The ID of the certificate validation

Related Projects

Check out these related projects.

terraform-tls-ssh-key-pair - Terraform module for generating an SSH public/private key file.
terraform-aws-alb - Terraform module to provision a standard ALB for HTTP/HTTP traffic

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<details> <summary>Preamble to the Apache License, Version 2.0</summary>

Complete license is available in the LICENSE file.

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