Cloudfront invalidation queue

Collect Cloudfront invalidations in a custom queue and process them in batch.

Created resources

Creates a Lambda function, triggered by EventBridge's event, that store the queue into a DynamoDB table and use a StepFunction state machine to orchestrate the execution of second Lambda that create the Cloudfront invalidation.

Installation

Region	Deploy Link
eu-west-1
eu-central-1
us-east-1
us-east-2

Using the SAM CLI:

sam build
sam deploy --guided

Including in an other SAM template:

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31

Resources:
  CloudfrontInvalidationQueue:
    Type: AWS::CloudFormation::Stack
    Properties:
      TemplateURL: # pick a templates links from section below, based on your region
      Parameters:
        DistributionId: XXXXXXXXXXXXXXX

Public templates

Region	Template URLs
eu-west-1	https://bitbull-serverless-templates-butoamoogh8eigo.s3.eu-west-1.amazonaws.com/cloudfront-invalidation-queue/template.yml
eu-central-1	https://bitbull-serverless-templates-saijuozaeshae6e.s3.eu-central-1.amazonaws.com/cloudfront-invalidation-queue/template.yml
us-east-1	https://bitbull-serverless-templates-chai7ephae5eet2.s3.us-east-1.amazonaws.com/cloudfront-invalidation-queue/template.yml
us-east-2	https://bitbull-serverless-templates-xae9och1eipiem8.s3.us-east-2.amazonaws.com/cloudfront-invalidation-queue/template.yml

Parameters

This application require some parameters when you deploy it:

• DistributionId:The Cloudfront distribution id to invalidate.

Optional parameters:

• EventBusName: The event bus from which to listen to the invalidation event.

• BatchWindowSeconds: The batch window in seconds.

• BatchTTL: The TTL value for batch, in seconds.

Usage

Send an event to configured EventBus with DetailType as Cloudfront Invalidation Request and Detail as

{
  "Paths": [
    "/path/to/invalidate",
    "/path/to/invalidate/",
    "/an/other/path/to/invalidate",
    "/an/other/path/to/invalidate/"
  ]
}

Credits

• Repository badges by Shields.io
• Infrastructure schema by Cloudcraft