What is the purpose of the databricks-workspace-stack-lambdazipsbucket S3 bucket created on Databricks AWS Account Provisioning?

DianGermishuiz1
Databricks Partner

An S3 bucket with the prefix "databricks-workspace-stack-lambdazipsbucket" was created by default when I created my AWS Databricks account. It is set to public access.

It has one zip file in it called "lambda.zip".

What is the purpose of this S3 bucket? Why does it have public access?