Hello! we would like to set policies for data retention on artifacts stored in S3. Ideally, that would be a setting at flow level. Is there a way to set this in Metaflow? Thanks!

I don't think metaflow supports this in their current terraform modules. This is the bucket resource. Ideally they should expose the bucket lifecycle options as input to the datastore module https://github.com/outerbounds/terraform-aws-metaflow/blob/v0.12.0/modules/datastore/s3.tf