AWS Certificate Manager (ACM) Terraform module

Terraform module which creates ACM certificates and validates them using Route53 DNS (recommended) or e-mail.

Terraform versions

Terraform 0.12. Pin module version to ~> v2.0. Submit pull-requests to master branch.

Terraform 0.11. Pin module version to ~> v1.0. Submit pull-requests to terraform011 branch.

Usage with Route53 DNS validation (recommended)

module "acm" {
  source  = "terraform-aws-modules/acm/aws"
  version = "~> v2.0"

  domain_name  = "my-domain.com"
  zone_id      = "Z2ES7B9AZ6SHAE"

  subject_alternative_names = [
    "*.my-domain.com",
    "app.sub.my-domain.com",
  ]

  tags = {
    Name = "my-domain.com"
  }
}

Examples

Conditional creation and validation

Sometimes you need to have a way to create ACM certificate conditionally but Terraform does not allow to use count inside module block, so the solution is to specify argument create_certificate.

module "acm" {
  source = "terraform-aws-modules/acm/aws"

  create_certificate = false
  # ... omitted
}

Similarly, to disable DNS validation of ACM certificate:

module "acm" {
  source = "terraform-aws-modules/acm/aws"

  validate_certificate = false
  # ... omitted
}

Notes

For use in an automated pipeline consider setting the wait_for_validation = false to avoid waiting for validation to complete or error after a 45 minute timeout.
domain_name can not be wildcard, but subject_alternative_names can include wildcards.

Inputs

Name	Description	Type	Default	Required
create_certificate	Whether to create ACM certificate	bool	`"true"`	no
domain_name	A domain name for which the certificate should be issued	string	`""`	no
subject_alternative_names	A list of domains that should be SANs in the issued certificate	list(string)	`[]`	no
tags	A mapping of tags to assign to the resource	map(string)	`{}`	no
validate_certificate	Whether to validate certificate by creating Route53 record	bool	`"true"`	no
validation_allow_overwrite_records	Whether to allow overwrite of Route53 records	bool	`"true"`	no
validation_method	Which method to use for validation. DNS or EMAIL are valid, NONE can be used for certificates that were imported into ACM and then into Terraform.	string	`"DNS"`	no
wait_for_validation	Whether to wait for the validation to complete	bool	`"true"`	no
zone_id	The ID of the hosted zone to contain this record.	string	`""`	no

Outputs

Name	Description
distinct_domain_names	List of distinct domains names used for the validation.
this_acm_certificate_arn	The ARN of the certificate
this_acm_certificate_domain_validation_options	A list of attributes to feed into other resources to complete certificate validation. Can have more than one element, e.g. if SANs are defined. Only set if DNS-validation was used.
this_acm_certificate_validation_emails	A list of addresses that received a validation E-Mail. Only set if EMAIL-validation was used.
validation_domains	List of distinct domain validation options. This is useful if subject alternative names contain wildcards.
validation_route53_record_fqdns	List of FQDNs built using the zone domain and name.

Authors

Module managed by Anton Babenko.

License

Apache 2 Licensed. See LICENSE for full details.

nunofernandes/terraform-aws-acm