How do we serve images from multiple s3 buckets?

[slavoroi]

Cloudfront CDN is serving the first s3 bucket.
I didn't find it in the docs.

[dougtoppin]

@slavoroi Thanks for your report. We will look at it this week and get back to you.

[dougtoppin]

@slavoroi If you are sending Thumbor style requests or using custom requests (where the REWRITE_ Lambda environment variables are set), only the first bucket listed in the CloudFormation Source Buckets parameter will be used. This detail can be seen in the CloudFormation parameter description for the Source Buckets field (included below).

This appears to be an omission in the Implementation Guide. We will create a backlog item to document this.

We are sorry for any confusion that might be causing.

If any additional clarification is needed let us know.

Thanks for the report.

Image Sources
Source Buckets
(Required) List the buckets (comma-separated) within your account that contain original image files. If you plan to use Thumbor or Custom image requests with this solution, the source bucket for those requests will be the first bucket listed in this field

[slavoroi]

So how do I use multiple buckets?
What is the multiple buckets configuration used for?
Is there something I could do manually to handle multiple buckets?

[dougtoppin]

There are 2 types of requests, Thumbor and Base64Encoded. The multiple bucket support is provided only for the Base64Encoded style requests.

1. Thumbor requests may look like one of the following examples

• https://domain.cloudfront.net/key.jpg
• https://domain.cloudfront.net/filters:rotate(90)/key.jpg
• https://domain.cloudfront.net/filters:grayscale()/key.jpg
  These can be served only from the first entry in the CloudFormation Source Buckets parameter, if there is more than one entry.
  More on Thumbor can be found at the following:
• https://docs.aws.amazon.com/solutions/latest/serverless-image-handler/backward-comp.html
• https://docs.aws.amazon.com/solutions/latest/serverless-image-handler/thumbor-filters.html

2. Base64Encoded requests support bucket and key attributes. The bucket attribute can be any bucket listed in the CloudFormation source buckets parameter and the associated key must be found in that bucket.
   These requests will look like the following:

• https://distributionName.cloudfront.net/base64encodedrequest
  This style of request is documented in Step 2. Create and use image requests at https://docs.aws.amazon.com/solutions/latest/serverless-image-handler/deployment.html

The optionally deployed demo-ui shows an example of what this style of request looks like.
https://docs.aws.amazon.com/solutions/latest/serverless-image-handler/using-the-demo-ui.html

More on Base64Encoded style requests can be found at https://docs.aws.amazon.com/solutions/latest/serverless-image-handler/solution-components.html

If there are any other questions, please let us know.

[slavoroi]

amazing! Missed that. Sorry.