Add an initialization script injection feature when provisioning from Fleet Manager

yaizawa

We built our Dataiku environment on AWS using the Cloud Stacks edition. To strengthen information security measures for this environment, we additionally installed Trend Micro TrendAI Vision One Endpoint Security. However, with the current Dataiku specifications, we have to reinstall TrendAI Vision One every time we re-provision. If Fleet Manager could retain an initialization script - similar to EC2 User Data - as a node-level setting, it would reduce the effort required during re-provisioning and prevent missed installations. We would appreciate it if you could consider adding this as a feature.