This is just a slight change to strapi-provider-upload-aws-s3

package.json:

{
  ...

  "dependencies": {
    "strapi-provider-upload-aws-s3-cloudfront": "3.6.4"
  }

  ...

}

config/plugins.js:

module.exports = ({ env }) => {
  //...
  upload: {
    provider: 'aws-s3-cloudfront',
    providerOptions: {
      accessKeyId: env('AWS_S3_KEY'),
      secretAccessKey: env('AWS_S3_SECRET'),
      region: env('AWS_S3_REGION'),
      params: {
        Bucket: env('AWS_S3_BUCKET'),
      },
      cdn: env('AWS_CLOUDFRONT')
    },
  },
  //...
};