AWS::CertificateManager::Certificate

The AWS::CertificateManager::Certificate resource requests an AWS Certificate Manager (ACM) certificate that you can use to enable secure connections. For example, you can deploy an ACM certificate to an Elastic Load Balancer to enable HTTPS support. For more information, see RequestCertificate in the AWS Certificate Manager API Reference.

Important

When you use the AWS::CertificateManager::Certificate resource in a CloudFormation stack, domain validation is handled automatically if all three of the following are true: The certificate domain is hosted in Amazon Route 53, the domain resides in your AWS account, and you are using DNS validation.

However, if the certificate uses email validation, or if the domain is not hosted in Route 53, then the stack will remain in the CREATE_IN_PROGRESS state. Further stack operations are delayed until you validate the certificate request, either by acting upon the instructions in the validation email, or by adding a CNAME record to your DNS configuration. For more information, see Option 1: DNS Validation and Option 2: Email Validation.

Syntax

To declare this entity in your AWS CloudFormation template, use the following syntax:

JSON

{
  "Type" : "AWS::CertificateManager::Certificate",
  "Properties" : {
      "CertificateAuthorityArn" : String,
      "CertificateTransparencyLoggingPreference" : String,
      "DomainName" : String,
      "DomainValidationOptions" : [ DomainValidationOption, ... ],
      "KeyAlgorithm" : String,
      "SubjectAlternativeNames" : [ String, ... ],
      "Tags" : [ Tag, ... ],
      "ValidationMethod" : String
    }
}

YAML

Type: AWS::CertificateManager::Certificate
Properties:
  CertificateAuthorityArn: String
  CertificateTransparencyLoggingPreference: String
  DomainName: String
  DomainValidationOptions: 
    - DomainValidationOption
  KeyAlgorithm: String
  SubjectAlternativeNames: 
    - String
  Tags: 
    - Tag
  ValidationMethod: String

Properties

CertificateAuthorityArn

The Amazon Resource Name (ARN) of the private certificate authority (CA) that will be used to issue the certificate. If you do not provide an ARN and you are trying to request a private certificate, ACM will attempt to issue a public certificate. For more information about private CAs, see the AWS Private Certificate Authority user guide. The ARN must have the following form:

arn:aws:acm-pca:region:account:certificate-authority/12345678-1234-1234-1234-123456789012

Required: No

Type: String

Pattern: arn:[\w+=/,.@-]+:acm-pca:[\w+=/,.@-]*:[0-9]+:[\w+=,.@-]+(/[\w+=,.@-]+)*

Minimum: 20

Maximum: 2048

Update requires: Replacement

CertificateTransparencyLoggingPreference

You can opt out of certificate transparency logging by specifying the DISABLED option. Opt in by specifying ENABLED.

If you do not specify a certificate transparency logging preference on a new CloudFormation template, or if you remove the logging preference from an existing template, this is the same as explicitly enabling the preference.

Changing the certificate transparency logging preference will update the existing resource by calling UpdateCertificateOptions on the certificate. This action will not create a new resource.

Required: No

Type: String

Allowed values: ENABLED | DISABLED

Update requires: No interruption

DomainName

The fully qualified domain name (FQDN), such as www.example.com, with which you want to secure an ACM certificate. Use an asterisk (*) to create a wildcard certificate that protects several sites in the same domain. For example, *.example.com protects www.example.com, site.example.com, and images.example.com.

Required: Yes

Type: String

Pattern: ^(\*\.)?(((?!-)[A-Za-z0-9-]{0,62}[A-Za-z0-9])\.)+((?!-)[A-Za-z0-9-]{1,62}[A-Za-z0-9])$

Minimum: 1

Maximum: 253

Update requires: Replacement

DomainValidationOptions

Domain information that domain name registrars use to verify your identity.

Important

In order for a AWS::CertificateManager::Certificate to be provisioned and validated in CloudFormation automatically, the `DomainName` property needs to be identical to one of the `DomainName` property supplied in DomainValidationOptions, if the ValidationMethod is **DNS**. Failing to keep them like-for-like will result in failure to create the domain validation records in Route53.

Required: No

Type: Array of DomainValidationOption

Minimum: 1

Maximum: 100

Update requires: Replacement

KeyAlgorithm

Specifies the algorithm of the public and private key pair that your certificate uses to encrypt data. RSA is the default key algorithm for ACM certificates. Elliptic Curve Digital Signature Algorithm (ECDSA) keys are smaller, offering security comparable to RSA keys but with greater computing efficiency. However, ECDSA is not supported by all network clients. Some AWS services may require RSA keys, or only support ECDSA keys of a particular size, while others allow the use of either RSA and ECDSA keys to ensure that compatibility is not broken. Check the requirements for the AWS service where you plan to deploy your certificate. For more information about selecting an algorithm, see Key algorithms.

Note

Algorithms supported for an ACM certificate request include:

• RSA_2048

• EC_prime256v1

• EC_secp384r1

Other listed algorithms are for imported certificates only.

Note

When you request a private PKI certificate signed by a CA from AWS Private CA, the specified signing algorithm family (RSA or ECDSA) must match the algorithm family of the CA's secret key.

Default: RSA_2048

Required: No

Type: String

Allowed values: RSA_1024 | RSA_2048 | RSA_3072 | RSA_4096 | EC_prime256v1 | EC_secp384r1 | EC_secp521r1

Update requires: Replacement

SubjectAlternativeNames

Additional FQDNs to be included in the Subject Alternative Name extension of the ACM certificate. For example, you can add www.example.net to a certificate for which the DomainName field is www.example.com if users can reach your site by using either name.

Required: No

Type: Array of String

Minimum: 1

Maximum: 100

Update requires: Replacement

Tags

Key-value pairs that can identify the certificate.

Required: No

Type: Array of Tag

Minimum: 1

Maximum: 50

Update requires: No interruption

ValidationMethod

The method you want to use to validate that you own or control the domain associated with a public certificate. You can validate with DNS or validate with email. We recommend that you use DNS validation.

If not specified, this property defaults to email validation.

Required: No

Type: String

Allowed values: EMAIL | DNS

Update requires: Replacement

Return values

Ref

When you pass the logical ID of this resource to the intrinsic Ref function, Ref returns the certificate's Amazon Resource Name (ARN).

For more information about using the Ref function, see Ref.

Fn::GetAtt

Examples

Declaring an Amazon Certificate Manager Certificate Resource

The following example shows how to declare an AWS::CertificateManager::Certificate resource to create an ACM certificate.

JSON

{
   "Resources":{
      "MyCertificate":{
         "Type":"AWS::CertificateManager::Certificate",
         "Properties":{
            "DomainName":"example.com",
            "ValidationMethod":"DNS"
         }
      }
   }
}

YAML

Resources: 
  MyCertificate: 
    Type: "AWS::CertificateManager::Certificate"
    Properties: 
      DomainName: example.com
      ValidationMethod: DNS