Support for Brotli compression on Cloudfront

[edhgoose]

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Description

AWS have announced support for Brotli on Cloudfront: https://aws.amazon.com/about-aws/whats-new/2020/09/cloudfront-brotli-compression/ which in theory enables smaller file sizes, and is widely supported by Chrome and Firefox.

It would be great to be able to enable this across our CloudFront distributions.

New or Affected Resource(s)

• aws_cloudfront_distribution

Potential Terraform Configuration

Currently the default_cache_behavior just has compress with a boolean value:

  default_cache_behavior {
    compress = true
}

Perhaps:

  default_cache_behavior {
    compress = ['gzip', 'br']
}

would be better, if possible, to enable users to make a decision on which compression types to support? I'd personally be happy with just compress = true supporting both gzip and br, but I'm not sure if that's universal and would change existing distributions.

References

• https://aws.amazon.com/about-aws/whats-new/2020/09/cloudfront-brotli-compression/
• https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/ServingCompressedFiles.html

[ewbankkit]

Requires AWS SDK v1.34.21:

• Update module aws/aws-sdk-go to v1.34.21 #14955

Looking at the Working with policies section of the CloudFront Developer Guide, Brotli compression is enabled via an attribute on the Cache Policy object: #14373, #14672.
On the aws_cloudfront_distribution resource, compress would stay as a boolean in the various cache_behavior configuration blocks.

[roberth-k]

Now included in #14672 as enable_accept_encoding_brotli.

[ewbankkit]

This has been included in the new aws_cloudfront_cache_policy resource implemented via #17336, to be released in v3.28.0 of the Terraform AWS Provider.

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. Thanks!