S3 Bucket Name is Empty when deploying UI Bucket

[gknorman-amazon]

I tried deploying today with minimal input (with a private website only accessible in a VPC) during the config process, but the deployed CFN had an empty string for the S3 Bucket Name for the UI hosting bucket:

"UserInterfaceWebsiteBucket2BDEA247": {
"Type": "AWS::S3::Bucket",
"Properties": {
"BucketName": "",
"LoggingConfiguration": {
"DestinationBucketName": {
"Ref": "UserInterfaceWebsiteLogsBucket54728780"
}
}

I didn't provide a certificate ARN nor a domain name, and I'm not sure if these are necessary to generate the Bucket Name, but I expected there to be an explicit step to name the bucket during configuration if input is actually needed from the user.

[gknorman-amazon]

In the meantime, I'll fix this the "wrong" way by creating a default bucket name in case the domain name is left empty during the config process in user-interface/index.ts

const defaultBucketNameString = "website-bucket" + cdk.Stack.of(this).account + "-" + cdk.Stack.of(this).region;

const defaultDomainName = props.config.domain ? props.config.domain : defaultBucketNameString;

If I enter my own domain name but I haven't set up my own hosted zone, etc already, will it create it for me? If so, I feel very silly and would ask for an update in config process or the documentation to make us aware of this.

[Rob-Powell]

As per the docs you need to do the pre req steps and then pass those values to the installer:

https://aws-samples.github.io/aws-genai-llm-chatbot/documentation/private-chatbot.html

[gknorman-amazon]

Can these prereqs be shown / linked to on the Deployment Guide page then?

This is the first time seeing this "Private Chatbot" page since I went straight from the "The Project" page and the "Deployment Guide" link at the bottom of that page. I didn't realize there were any prereqs when I started the Cloud 9 deployment steps.

[Rob-Powell]

They are linked to on the left hand side navigation. but there should be validation on those fields in config creation.