AWS::CloudFront::Distribution DistributionConfig
A distribution configuration.
Syntax
To declare this entity in your AWS CloudFormation template, use the following syntax:
JSON
{ "Aliases" :
[ String, ... ]
, "CacheBehaviors" :[ CacheBehavior, ... ]
, "CNAMEs" :[ String, ... ]
, "Comment" :String
, "ContinuousDeploymentPolicyId" :String
, "CustomErrorResponses" :[ CustomErrorResponse, ... ]
, "CustomOrigin" :LegacyCustomOrigin
, "DefaultCacheBehavior" :DefaultCacheBehavior
, "DefaultRootObject" :String
, "Enabled" :Boolean
, "HttpVersion" :String
, "IPV6Enabled" :Boolean
, "Logging" :Logging
, "OriginGroups" :OriginGroups
, "Origins" :[ Origin, ... ]
, "PriceClass" :String
, "Restrictions" :Restrictions
, "S3Origin" :LegacyS3Origin
, "Staging" :Boolean
, "ViewerCertificate" :ViewerCertificate
, "WebACLId" :String
}
YAML
Aliases:
- String
CacheBehaviors:- CacheBehavior
CNAMEs:- String
Comment:String
ContinuousDeploymentPolicyId:String
CustomErrorResponses:- CustomErrorResponse
CustomOrigin:LegacyCustomOrigin
DefaultCacheBehavior:DefaultCacheBehavior
DefaultRootObject:String
Enabled:Boolean
HttpVersion:String
IPV6Enabled:Boolean
Logging:Logging
OriginGroups:OriginGroups
Origins:- Origin
PriceClass:String
Restrictions:Restrictions
S3Origin:LegacyS3Origin
Staging:Boolean
ViewerCertificate:ViewerCertificate
WebACLId:String
Properties
Aliases
-
A complex type that contains information about CNAMEs (alternate domain names), if any, for this distribution.
Required: No
Type: Array of String
Update requires: No interruption
CacheBehaviors
-
A complex type that contains zero or more
CacheBehavior
elements.Required: No
Type: Array of CacheBehavior
Update requires: No interruption
CNAMEs
-
An alias for the CloudFront distribution's domain name.
Note
This property is legacy. We recommend that you use Aliases instead.
Required: No
Type: Array of String
Update requires: No interruption
Comment
-
A comment to describe the distribution. The comment cannot be longer than 128 characters.
Required: No
Type: String
Update requires: No interruption
ContinuousDeploymentPolicyId
-
The identifier of a continuous deployment policy. For more information, see
CreateContinuousDeploymentPolicy
.Required: No
Type: String
Update requires: No interruption
CustomErrorResponses
-
A complex type that controls the following:
-
Whether CloudFront replaces HTTP status codes in the 4xx and 5xx range with custom error messages before returning the response to the viewer.
-
How long CloudFront caches HTTP status codes in the 4xx and 5xx range.
For more information about custom error pages, see Customizing Error Responses in the Amazon CloudFront Developer Guide.
Required: No
Type: Array of CustomErrorResponse
Update requires: No interruption
-
CustomOrigin
-
The user-defined HTTP server that serves as the origin for content that CloudFront distributes.
Note
This property is legacy. We recommend that you use Origin instead.
Required: No
Type: LegacyCustomOrigin
Update requires: No interruption
DefaultCacheBehavior
-
A complex type that describes the default cache behavior if you don't specify a
CacheBehavior
element or if files don't match any of the values ofPathPattern
inCacheBehavior
elements. You must create exactly one default cache behavior.Required: Yes
Type: DefaultCacheBehavior
Update requires: No interruption
DefaultRootObject
-
The object that you want CloudFront to request from your origin (for example,
index.html
) when a viewer requests the root URL for your distribution (https://www.example.com
) instead of an object in your distribution (https://www.example.com/product-description.html
). Specifying a default root object avoids exposing the contents of your distribution.Specify only the object name, for example,
index.html
. Don't add a/
before the object name.If you don't want to specify a default root object when you create a distribution, include an empty
DefaultRootObject
element.To delete the default root object from an existing distribution, update the distribution configuration and include an empty
DefaultRootObject
element.To replace the default root object, update the distribution configuration and specify the new object.
For more information about the default root object, see Creating a Default Root Object in the Amazon CloudFront Developer Guide.
Required: No
Type: String
Update requires: No interruption
Enabled
-
From this field, you can enable or disable the selected distribution.
Required: Yes
Type: Boolean
Update requires: No interruption
HttpVersion
-
(Optional) Specify the HTTP version(s) that you want viewers to use to communicate with CloudFront. The default value for new distributions is
http1.1
.For viewers and CloudFront to use HTTP/2, viewers must support TLSv1.2 or later, and must support Server Name Indication (SNI).
For viewers and CloudFront to use HTTP/3, viewers must support TLSv1.3 and Server Name Indication (SNI). CloudFront supports HTTP/3 connection migration to allow the viewer to switch networks without losing connection. For more information about connection migration, see Connection Migration
at RFC 9000. For more information about supported TLSv1.3 ciphers, see Supported protocols and ciphers between viewers and CloudFront. Required: No
Type: String
Allowed values:
http1.1 | http2 | http3 | http2and3
Update requires: No interruption
IPV6Enabled
-
If you want CloudFront to respond to IPv6 DNS requests with an IPv6 address for your distribution, specify
true
. If you specifyfalse
, CloudFront responds to IPv6 DNS requests with the DNS response codeNOERROR
and with no IP addresses. This allows viewers to submit a second request, for an IPv4 address for your distribution.In general, you should enable IPv6 if you have users on IPv6 networks who want to access your content. However, if you're using signed URLs or signed cookies to restrict access to your content, and if you're using a custom policy that includes the
IpAddress
parameter to restrict the IP addresses that can access your content, don't enable IPv6. If you want to restrict access to some content by IP address and not restrict access to other content (or restrict access but not by IP address), you can create two distributions. For more information, see Creating a Signed URL Using a Custom Policy in the Amazon CloudFront Developer Guide.If you're using an Amazon Route 53 AWS Integration alias resource record set to route traffic to your CloudFront distribution, you need to create a second alias resource record set when both of the following are true:
-
You enable IPv6 for the distribution
-
You're using alternate domain names in the URLs for your objects
For more information, see Routing Traffic to an Amazon CloudFront Web Distribution by Using Your Domain Name in the Amazon Route 53 AWS Integration Developer Guide.
If you created a CNAME resource record set, either with Amazon Route 53 AWS Integration or with another DNS service, you don't need to make any changes. A CNAME record will route traffic to your distribution regardless of the IP address format of the viewer request.
Required: No
Type: Boolean
Update requires: No interruption
-
Logging
-
A complex type that controls whether access logs are written for the distribution.
For more information about logging, see Access Logs in the Amazon CloudFront Developer Guide.
Required: No
Type: Logging
Update requires: No interruption
OriginGroups
-
A complex type that contains information about origin groups for this distribution.
Specify a value for either the
Origins
orOriginGroups
property.Required: Conditional
Type: OriginGroups
Update requires: No interruption
Origins
-
A complex type that contains information about origins for this distribution.
Specify a value for either the
Origins
orOriginGroups
property.Required: Conditional
Type: Array of Origin
Update requires: No interruption
PriceClass
-
The price class that corresponds with the maximum price that you want to pay for CloudFront service. If you specify
PriceClass_All
, CloudFront responds to requests for your objects from all CloudFront edge locations.If you specify a price class other than
PriceClass_All
, CloudFront serves your objects from the CloudFront edge location that has the lowest latency among the edge locations in your price class. Viewers who are in or near regions that are excluded from your specified price class may encounter slower performance.For more information about price classes, see Choosing the Price Class for a CloudFront Distribution in the Amazon CloudFront Developer Guide. For information about CloudFront pricing, including how price classes (such as Price Class 100) map to CloudFront regions, see Amazon CloudFront Pricing
. Required: No
Type: String
Allowed values:
PriceClass_100 | PriceClass_200 | PriceClass_All
Update requires: No interruption
Restrictions
-
A complex type that identifies ways in which you want to restrict distribution of your content.
Required: No
Type: Restrictions
Update requires: No interruption
S3Origin
-
The origin as an Amazon S3 bucket.
Note
This property is legacy. We recommend that you use Origin instead.
Required: No
Type: LegacyS3Origin
Update requires: No interruption
Staging
-
A Boolean that indicates whether this is a staging distribution. When this value is
true
, this is a staging distribution. When this value isfalse
, this is not a staging distribution.Required: No
Type: Boolean
Update requires: No interruption
ViewerCertificate
-
A complex type that determines the distribution's SSL/TLS configuration for communicating with viewers.
Required: No
Type: ViewerCertificate
Update requires: No interruption
WebACLId
-
A unique identifier that specifies the AWS WAF web ACL, if any, to associate with this distribution. To specify a web ACL created using the latest version of AWS WAF, use the ACL ARN, for example
arn:aws:wafv2:us-east-1:123456789012:global/webacl/ExampleWebACL/a1b2c3d4-5678-90ab-cdef-EXAMPLE11111
. To specify a web ACL created using AWS WAF Classic, use the ACL ID, for examplea1b2c3d4-5678-90ab-cdef-EXAMPLE11111
.AWS WAF is a web application firewall that lets you monitor the HTTP and HTTPS requests that are forwarded to CloudFront, and lets you control access to your content. Based on conditions that you specify, such as the IP addresses that requests originate from or the values of query strings, CloudFront responds to requests either with the requested content or with an HTTP 403 status code (Forbidden). You can also configure CloudFront to return a custom error page when a request is blocked. For more information about AWS WAF, see the AWS WAF Developer Guide.
Required: No
Type: String
Update requires: No interruption
See also
-
DistributionConfig in the Amazon CloudFront API Reference